Datasets:

cwinkler

/

patents_green_plastics

like 1

a system and method for automated bending of wood strips . the system includes an preprogrammed automated robot arm that is fitted with a gripper for grasping and manipulating the wood board around a hot mandrel in order to bend the wood into intricate bent shapes . the wood strips are first soaked in water so that they pliable to bend around the mandrel . the heated mandrel plasticizes the lignin to allow the fibers to reorient in the wet wood strips thus fixing or locking the wood in the bent shape . the grippers are preferably pneumatic grippers formed from two plates that move towards each other to grasp or clamp onto the wood strip . a friction plate urges the wood strips against the heated mandrel to provide consistent and constant contact between the wood strip and the surface of the hated mandrel .

a loader or receiver for use in conveying particulate material , typically plastic resin , which is positioned on a tilt from the vertical axis , on top of a material hopper , bin , or processing machine . the tilted angle of the loader or receiver allows for the maximization of payload capacity , a smooth flow of material discharge into the hopper , and easy access for cleaning , maintenance , and service .

the invention concerns packaging container produced from a composite shaped by cold - forming , the term “ packaging containers ” including base of lid parts or base and lid parts shaped by cold - forming . the base or lid parts can be shaped by cold - forming , and a lid film or base film , respectively , can form the corresponding closure for the packaging container . in addition , both the base and the lid part can be shaped by cold - forming , the depressions formed in the base and lid parts advantageously lying opposite one another . the composite from which the packaging container or parts thereof are produced has a layered structure , for example , comprising : a ) a plastics film between 10 μm and 250 μm thick ; b ) a bi - or monoaxially oriented film selected from the group comprising polyvinylchloride films , polyolefin films , polyamide films or polyester films between 10 and 100 μm thick , or a bi - or monoaxially oriented plastics film composite comprising two films selected from the group comprising polyvinylchloride films , polyolefin films , polyamide films or polyester films each between 10 and 50 μm thick ; c ) a metal foil between 20 and 200 μm thick ; and a 1 ) plastics film between 10 and 250 μm thick . the packaging containers are characterized by a high degree of flatness and / or rigidity .

a center console has a basic support on which functional parts and trim parts are attachable . in order to provide a center console having a basic support which is of simple construction and / or is manufacturable in a cost - effective manner , the basic support , in a front region , is formed from a plastic material and , in a rear region , is formed from a metallic material .

a system is provided for movably supporting an ink film in a printer . the system has cylindrical supply and take - up cores for supporting and taking up the film during printing operations . the cores may be made of molded plastic resin . the ends of the cores are sized to selectively fit within a frame in such a way as to provide stable operation , including where applicable , while a frame cover is closed . in a preferred embodiment , the diameters of the first and second ends of the supply and take - up cores are essentially the same , and the diameters of the second and first ends of the respective cores are essentially the same . a molded cylindrical brake portion frictionally contacts the teeth of a brake gear to provide the desired film tension with improved handling and with reduced likelihood of jamming .

the present invention is a container assembly that includes an inner tube formed from a plastic that is substantially inert to bodily fluids and an outer tube that is formed from a different plastic . collectively , the container assembly is useful for providing an effective barrier against gas and water permeability in the assembly and for extending the shelf - life of the container assembly , especially when used for blood collection . the inner container is spaced from the outer container at most locations . however , the inner container includes an enlarged top configured to engage the outer container . the enlarged top has a roughened outer surface to permit an escape of air from the space between the containers .

a method for forming microspheres on a microscopic level comprises the steps of defining holes through a substrate , disposing a sheet of thermally formable material onto the substrate covering the holes , heating the sheet of thermally formable material until a predetermined degree of plasticity is achieved , applying fluidic pressure through the holes to the sheet of thermally formable material , while the sheet of glass is still plastic , and forming microspheres on the substrate in the sheet of thermally formable material by means of continued application of pressure for a predetermined time . the invention also includes a substrate having a plurality of holes defined therethrough , a layer of thermally formable material disposed onto the substrate covering the plurality of holes , and a plurality of microspheres thermally formed in the layer by means of applied pressure through the holes when it has been heated to a predetermined degree of plasticity .

the present invention relates to an obtainment process of biodegradable polymers from a citric residue resulting from the processing of orange juice . the polymers obtained are polyesters classified as polyhydroxyalkanoates including , among them the poly and poly . the biodegradable polymer is obtained from the batch culture process or fed batch culture process with or without recirculation of the cells , using as a carbon source the pre - treated pressing liquor and / or the citric molasses . the polyhydroxyalkanoates , herein described , can be used as substitutes of the synthetic polyesters in different areas , including the food , pharmaceutical , medical , agricultural and other areas .

the invention relates to a composition comprising a thermoplastic polymer and wood fiber composite that can be used in the form of a linear extrudate or thermoplastic pellet to manufacture structural members . the polymer , the fiber or both can be modified to increase compatibility . the wood fiber composite structural members can be manufactured in an extrusion process or an injection molding process . the linear extrudate or pellet can have a cross - section of any arbitrary shape , or can be a regular geometric . the pellet can have a cross - section shape having a volume of at least about 12 mm 3 . preferably the pellet is a right cylindrical pellet having a minimum radius of about 1 . 5 mm and a minimum length of 1 mm weighing at least 14 mg . the invention also relates to an environmentally sensitive recycle of waste streams . the polymer and wood fiber composite contains an intentional recycle of a waste stream comprising polymer flakes or particles or wood fiber . the waste stream can comprises , in addition to polymer such as polyvinyl chloride or wood fiber , adhesive , paint , preservative , or other chemical stream common in the wood - window or door manufacturing process , or mixtures thereof . the initial mixing step before extrusion of the composite material insures substantial mixing and melt contact between molten polymer and wood fiber . the extruded pellet comprises a consistent proportion of polymer , wood fiber and water . during the extrusion , water is removed intentionally to dry the material to a maximum water content of less than about 10 wt -% based on the pellet weight . to make a structural unit , the pellet is introduced into an extruder or injection molding apparatus wherein , under conditions of temperature and pressure , the composite pellet material is shaped into a useful cross - section . alternatively , the extruded thermoplastic mass , in the form of a elongated linear extrudate without a pelletizing step , can be immediately directed after formation into an extruder or injection molding apparatus .

a method is disclosed for securing a repair sleeve within a tubular fluid conveying conduit . the sleeve is positioned within the tube so that it extends coextensive with a region of degraded tube wall and partially beyond the axial extremes of the degraded area . a radially outwardly directed force is then applied toa the tubular sleeve from within along a portion of the sleeve at each end , extending beyond the degraded area . the force is sufficient to cause outward plastic deformation of both the sleeve and the tube resulting in an interference mechanical joint therebetween .

a method for manufacturing a laminate material for use as a surface covering or the like , by reusing plastic trimmings , includes the step of forming a layer from the plastic trimmings , and preferably subjecting both sides to a surface compression while simultaneously providing heat transfer , thus allowing the zones near the surface to be melted on .

a closure system for a medical liquid container having a dispensing outlet surrounded by a flange over which is fitted a plastic cap . the cap is externally threaded and has an outwardly - projecting brim at its lower end overlying the flange . the brim is sealed to the flange along an annular zone having an inner boundary defining an annular line of weakness , and an internally - threaded breakaway ring is threadedly disposed on the cap . the breakaway ring includes a plurality of circumferentially - spaced depending projections for stressing the brim along portions of the annular line of weakness and for initiating and propagating the rupture of the brim as the breakaway ring is screwed downwardly upon the cap .

a printing device in which dots are made to implode , rather than explode when transformed into dye - laden gas . each of the plurality of dots having a smaller cross - section on the object than on the source and each have a concave silhouette . the plurality of dots also have a ring - shaped surface prior to transfer to a source , such as a transfer paper . in preferred embodiments this is accomplished by converting the dot profile to a concave silhouette or a hollow dot , which implodes upon itself when transformed into gas state by heat . it is further contemplated that the device , such as an ink jet printer or an electrostatic printer to transfer the dots to a fabric . preferably , the fabric is a clothing fabric , but can also include a wall paper fabric , and even carpet , paper , plastic , and powder coated metal .

polyester films which comprise a stabilizer for inhibiting oxidative degradation , at least some of which has been covalently incorporated into the polymer chain of the polyester through polycondensation during formation of the polyester , have not only high resistance to oxidation but also very few surface defects and high stability during processing , and are suitable not only for use as a packaging material but for a wide variety of other technical applications .

the present invention provides a method for collecting oil with a modified clay . by mixing the modified clay and oil , the oil can be adsorbed to the clay . the modified clay is obtained by intercalating a hydrophobic polymer such as acidified poly - amine into layered silicate clay , mica or talc to enlarge the interlayer space . the modified clay thus becomes hydrophobic and adsorption to the oil is promoted .

a device and method are disclosed for forming air filled cushions . the device includes a drive mechanism to move inflatable tubing through the apparatus , and an injector , optionally including an outlet , located continuously within , or within a portion of , the tubing . this arrangement can permit the formation of air filled cushions in a continuous stream . also disclosed is a roll of plastic tubing that is sealed transversely at a succession of intervals , with each pair of seals stopping just short of a longitudinal center line of the tubing . such tubing might be used in conjunction with the apparatus , the central gap between the seals allowing passage of the injector .

a control joint for forming and controlling concrete structures such as floors and tilt - up walls . the joint has a base and an upstanding web with an off - set section and is preferably extruded from plastic . in alternate embodiments , the joint has a base and a web with a removable top cap for forming a chamber or recess in the completed product . a reusable , reinforced form for structures such as stem walls is also disclosed which form can be cut at spaced - apart locations to the desired length .

the present invention relates to a food package for cooking , storing and heating of ready - to - eat food . the food package comprises a food container , a plastic film for sealing the food package from ambient air and being provided with an opening , said food package further comprising an openable and resealable valve membrane of a thermoelastic material covering said opening , wherein an adhesion between the valve membrane and the surface it is applied on is lower in a first area than in a second area , wherein said first area extends in a direction at least between said opening of said plastic film and an edge of said valve membrane , such that a canal may be created between said opening and a valve membrane periphery during cooking and / or heating of said ready - to - eat food , wherein the valve membrane has a production machine direction of the thermoelastic material which has a relationship to said direction of said first area such that an angle therebetween is within an interval of 60 ° to 90 °.

an aerosol valve actuator with a top portion rotatable on a bottom portion . the entire top portion in one rotatable position is depressible vertically to actuate the valve . a click post and clicking rib provide a single click in each direction of rotation . flanges on top and bottom portions interact to stop rotation as soon as each click occurs . plastic springs interact with spring biasing members only when the top portion is in actuating position , and assure return of the actuator top portion to full upward position for rotation after actuation of even a short - stemmed valve . downwardly extending flexible connecting flanges connect the actuator top and bottom portions . the top portion has a lower periphery with a plurality of upwardly extending indentations to overlie lateral ribs in the lower portion in actuation position . the top and bottom portions have interfitting cylinders to stabilize the top portion and maintain verticality .

halyards may be secured by capturing such halyards inside the turns of a plastic helix and then also concurrently capturing a shroud or other securing line within said helix .

the instant invention involves the use of a combination of preparatory steps in conjunction with mass spectroscopy and time - of - flight detection procedures to maximize the diversity of biopolymers which are verifiable within a particular sample . the cohort of biopolymers verified within such a sample is then viewed with reference to their ability to evidence at least one particular disease state ; thereby enabling a diagnostician to gain the ability to characterize either the presence or absence of said at least one disease state relative to recognition of the presence and / or the absence of said biopolymer , predict disease risk assessment , and develop therapeutic avenues against said disease .

the present invention relates to mixtures of polypiperidine compounds , which are capable of confer to polymeric materials of different nature , particularly polyolefines , a high stability towards oxidative action and photodegradation .

disclosed is a double - sided grating waveguide biosensor . the double - sided grating waveguide biosensor is used to sense the properties of a sample solution . the double - sided grating waveguide biosensor comprises a sequential stack of a plastic grating having a grating part , a waveguide layer having a double - sided grating structure , and a channel chip . furthermore , the sample solution is guided into the channel chip ; the light beam is coupled into the waveguide layer via the double - sided grating structure , propagates in the waveguide layer , and penetrates outward . the double - sided waveguide biosensor detects the properties of the sample solution via a variation of a light beam intensity of the outgoing light beam .

a polymer - based solder paste composition having the strength and corrosion resistance of joints produced by conventional solder technology and the environmental and processing advantages of ica technology comprises a powdered solder metal with a single component polymerizable flux composition . the polymerizable flux composition includes 55 %- 65 % by weight of an epoxy such as epoxy novolac , the diglycidyl ethers of bisphenol a and f , and mixtures thereof , 0 - 15 % by weight of a dicarboxylic acid , 9 %- 11 % by weight of a polyalcohol , 3 %- 5 % by weight of an amine thermal curing agent , and the balance including a chelating agent , a defoamer , a thixotrope and a surfactant . upon heating , the solder metal spontaneously segregates from the flux composition , fuses , and forms a metallurgical joint , while the single - component polymerizable flux composition encapsulates the fused metal in a polymer coating which remains firm but pliable at reflow temperatures .

an agent and method for treating biodegradable synthetic yarns fabricated from a polymer comprising lactic acid as a main component , which enable improved lubricity , cohesion , etc . to be so imparted to the biodegradable synthetic yarns that the yarns can be prevented from fuzzing and breaking at every step from spinning to down - stream step , especially at a false twisting step and improved in terms of bulkiness , providing yarns having improved mechanical properties in a stable manner . the agent of the invention comprises 0 . 1 to 30 weight % of a specific functional agent , and a lubricant and a surfactant in the total amount of 70 weight % or greater , and has a friction coefficient in the range of 0 . 04 to 0 . 35 .

the object of the present invention is to provide a method for aggregating and separating algae dispersed in a liquid efficiently . according to the present invention , a method for aggregating and separating algae dispersed in a liquid , which comprises adding an alkaline inorganic aggregating agent to the liquid at ph of 2 . 0 to 4 . 0 in which algae are dispersed , followed by adding a cationic polymer aggregating agent , is provided . further , according to the present invention , a method for producing biofuel utilizing algae is provided .

a method for producing a fast drying high solids adhesive wherein a water based polymer emulsion is modified with unemulsified elasticizing oils and reinforcing - tackifying resins to produce a stable emulsion of polymer , oil and resin without the use of additional emulsifiers or volatile organic solvents . when packaged in pressurizable canisters along with a suitable propellant , the adhesive may be sprayed through a suitable nozzle and deposited in a thin layer to form an adhesive film which has excellent bonding characteristics for many laminates such as fabric or textiles , wood , plastics , metals and rubber , and for adhering flooring materials such as carpet , linoleum , tiles and artificial grass to a variety of substrates .

a method for the preparation of biologically active materials is presented . the invention involves taking a base material such as allografts , xenografts , polymers , metals , and ceramics and combining it with a biologically active agent , such as proteins , cytokines , growth factors , and enzymes after which it is irradiated with ionizing radiation to sterilize and stabilize the material . the resulting biologically active material may then be stored at ambient temperature while maintaining its biological activity and the structural integrity of the base material . the invention is particularly useful for eliciting desired biological responses in human and animal medicine , and in certain industrial applications .

an implant having a preferably hollow cylindrical basic structure . a nonwoven fabric is disposed in and / or on the basic structure , the nonwoven fabric preferably comprising biocompatible thermoplastic polyurethane and / or a polymer selected from the group consisting of polylactic acid ; polycaprolactone , and a copolymer thereof , and / or a polymer including polyphosphazene . at least in at least one section of the implant , preferably at the proximal and / or distal ends of the implant , fastening means are provided or the nonwoven fabric is treated such that , at least in the expanded state of the implant , the protrusion of nonwoven fabric sections from the implant is significantly reduced . furthermore , a method for producing such an implant is provided .

thick - skinned extruded metal honeycomb structures , and a method and apparatus for making them , are disclosed wherein a plasticized powder metal extrusion batch is extruded though a die assembly comprising a die and annular mask , the mask having a central outlet for extrusion of the skin and honeycomb core and an extrudate reservoir adjacent the central outlet , the die and mask cooperating to form a skinforming gap fed by the die and by the extrudate reservoir , such that batch material supplied from the reservoir and directly from the die combines to form a thickened outer skin which is integral with , and resistant to separation from , the honeycomb core .

a method of making a non - corrosive plastic bellows by ultrasonic welding inner and outer flanges of discs with cylindrical and half - cylindrical horns , respectively . the half - cylindrical horn and a fixture used therewith have lips to fit on opposite sides of a pair of contacting outer flanges and in between two pairs of flanges . the inner flanges are thus welded first .

in one embodiment , there is provided a method for producing a sterilized and pyrogen - free bag for storing fluids . the method includes providing a bag comprised of polymeric film and heating the bag to at least approximately 253 degrees celsius for at least approximately 30 minutes for sterilization and pyrogen removal . the polymeric film is a polymer selected from the group of poly ; polytetrafluoroethylene ; a perfluoroalkoxy polymer ; poly ; polyperfluoro ; poly ; poly ; poly ; tetrafluoroethylene - co - hexafluoropropylene - co - vinylidene fluoride terpolymer ; poly ; poly ; and suitable mixtures thereof .

apparatus for molding expanded polymer beads by the steam - fusion technique including mold segments having perforate walls , steam chests confronting the mold segments , and thermal insulation located at the junction between the mold segments and the steam chests to reduce conductive heat transfer therebetween .

a method of tertiary oil recovery from petroleum - containing formations at elevated temperature comprises injecting a substantially oxygen - free aqueous saline solution of water - soluble polysaccharide biopolymer treated at ph of at least 5 by the addition of alkali metal borohydride as viscosity stabilizer .

a container formed of paperboard , or the like , is formed with an aperture . a plastic disk is attached to the paperboard over the aperture by thermoplastic welding or other means . the disk has a frangible area which is opened to dispense contents . typically the frangible area is penetrated by the end of a drinking straw . for aseptic packaging , the paperboard may be lined with a barrier , such as foil . alternatively foil may be attached to the disk and welded to the paperboard surrounding the aperture or welded to a foil or polyethylene liner for the paperboard .

a reclosable plastic container is formed having a cover hingedly attached to a base and having an interlocking structure such that the cover is held on the base when the container is closed . release tabs are formed on each of the cover and base adjacent one another and having camming surfaces on each tab which extend therefrom toward the other tab . the camming surfaces on the tabs intersect in a fulcrum such that when the user presses the tabs together , the tabs rotate about the fulcrum to pull the cover and base apart . the camming surface on each tab may be formed as a ridge formed integrally with the tab . reinforcing ridges , extending away from the plane of the tab in a direction opposite to that of the camming surfaces , are also preferably formed in the tab to provide structural rigidity so that the tabs do not substantially bend or flex when they are pressed by the user . the tabs allow a securely closed container to be easily opened by one hand of the user .

a biocompatible intermolecular polymer complex comprises an anionic component and a non protein cationic component . the anionic component comprises a linear or branched polysaccharide chain wherein at least 5 % of the basic structural units are glucuronic acid . the cationic component comprises a linear or branched natural , semi - synthetic or synthetic oligomer or polymer .

the invention relates to a membrane that heals on its own after being damaged mechanically as well as a method for producing said membrane which is used for pneumatic structures featuring an internal operating pressure of 10 mbar to 500 mbar . the inventive membrane is provided with a plastic layer on the pressure side , said plastic layer being interspersed with blisters that have a diameter ranging from 10μ to 200μ .

a process and apparatus for disinfection and reclamation of materials contained in contaminated disposable products worn by infants and adults containing human feces and / or urine . the process and apparatus disinfect , mechanically and biologically break down and separates these materials by the use of a pressurized steam digester , mechanical chopper and a screening process . the steam digester process is carried on in a sealed system utilizing a fume scrubber for controlling disposition of ammonia and methane gasses . effluent and waste are controlled to maintain safe discharges and all recyclable materials are disinfected and reduced to a form suitable for remanufacture of like products or as raw materials for other manufactured products . polymer particles are exposed to ultraviolet light for molecular breakdown and ion exchange between polymer chains , resulting in further reduction in mass of each particle .

a shutoff nozzle body and valve assembly operative to reduce molten plastic resin drool when the nozzle body is separated from the mold or runner system . the apparatus includes a porting system that shuts off the flow of resin through the sprue plunger of the valve nozzle body before the valve body seals on the valve seat so as to permit any resin that is within the sprue passages to drain out through the sprue plunger into the mold cavity or runner system before the sprue tip completely withdraws from the mold or runner system thereby eliminating drool .

a photo - degradable , molded , high strength plastic shotshell component having a degradation composition comprising as its combination of active ingredients linear polyethylene having a melt index of 0 . 1 to 5 . 0 and an ethylene - vinyl acetate - carbon monoxide terpolymer , the ratios by weight of which to said linear polyethylene is approximately 0 . 115 : 1 to 0 . 261 : 1 the ethylene - vinyl acetate - carbon monoxide terpolymer in its preferred composition has about 65 % by weight of ethylene , 25 % by weight of vinyl acetate , and 10 % by weight of carbon monoxide .

a cylinder - piston type seat belt tensioning device comprises a broach pipe wherein a broach rod which is connected to a seat belt is disposed , a load limiting member connecting the broach rod to the piston , which is broken at a predetermined load , and locking means for locking the broach pipe in the cylinder when the load limiting member is broken . after the load limiting member is broken at a predetermined load , the broach rod returns while plastically deforming the broach pipe to absorb the kinetic energy of the occupant .

the present invention is related to an immuno - pcr method for detecting nasopharyngeal carcinoma and kit thereof , especially related to an immuno - pcr method for detecting markers of early stage npc and kit thereof . the present invention includes providing a substrate whereon protein markers immobilized ; applying a patient &# 39 ; s specimen to the substrate ; adding a solution which has biotinylated anti - human iga secondary antibody and incubating the solution ; adding a solution with a linker and biotinylated target dna ; proceeding a polymerase chain reaction ; and finally , detecting the target dna fragments via electrophoresis .

the invention relates to an enzymatic - chemical method for obtaining polyhydroxyalkanoates , especially polyhydroxybutyrate , or the copolymers thereof , from biomass . the inventive method comprises chemically treating the biomass with a reducing agent that reduces the non - pha cell components of the biomass . the chemical treatment is carried out before and / or after enzymatic cell disruption . the inventive method allows , unlike other cell disruption techniques , for obtaining polyhydroxyalkanoates from biomass with a relatively low pha content without drastically changing or deteriorating the polymer properties or polymer purity .

a polymer - based composite structural board for in - ground and above - ground use without material degradation has a polymer material or predominantly polymer material core layer with a density between 1 . 6 lbs / ft 3 and 25 lbs / ft 3 . a facer overlays , is generally coextensive with , and is bonded to at least one of the major surfaces and preferably both of the major surfaces of the core layer . the facer enhance the integrity and fastener pull through strength of the polymer - based composite structural board as well as other desired physical and performance characteristics of the polymer based composite structural board . the polymer - based composite board is used in foundation wall systems , utility conduit systems and other systems where the composite board is in ground contact .

a carbonylation process which comprises contacting a β - fluoroalkanol , carbon monoxide , a base , and the group iib element mercury present in an oxidation state greater than zero . the resulting β - fluoroaliphatic carbonates can be employed in combination with alkanols and / or phenols to prepare aliphatic and aromatic mono - and polycarbonates . the resulting carbonates are useful in a wide variety of applications , especially polycarbonates which can be molded or formed into films , sheets , fibers , laminates , or reinforced plastics by conventional techniques .

hydrocarbon oil based antifoams compositions containing a hydrocarbon - silicon copolymer , a hydrophobic filler , an organo - silicone surfactant , a hydrocarbon carrier oil and optionally a silicone oil act to effectively defoam concentrated solutions , including those containing ionic surfactants or protein based solutions . the use of the hydrocarbon oil based silicone antifoams represents an inexpensive route to defoams difficult solutions .

the present invention provides a heat shrinkable multilayer film which has excellent printability and also has good finish quality after attachment . the present invention relates to a heat shrinkable multilayer film , including front and back layers each containing a polyester resin , an interlayer , and adhesive layers , the front and back layers and the interlayer being stacked with the adhesive layers interposed therebetween . the interlayer contains a styrene homopolymer and a plasticizer . the interlayer contains the plasticizer in an amount of 5 to 35 % by weight .

vibratory welded connections are formed between first and second members of thermoplastic material by interposing a junction piece of similar material and vibrating the junction piece at high speed while pressing the first and second members in a controlled manner against opposite sides of the junction piece . friction created by the vibration generates heat which melts a small amount of material at the engaging surfaces which upon cooling provides a strong welded joint having minimal flash . entire frame systems such as window frames can be fabricated by an apparatus system which forms a friction welded joint between adjacent ends of the frame members . furthermore the frame can be fabricated around a panel such as a glazing panel . the welded connections formed by the system do not mar the finish of the frame members and produce no unsightly flash bead requiring subsequent machining steps for its removal .

a plastic tubular member , open longitudinally along one side , is compartmented across its width to receive a plurality of media for supporting different bacteria cultures ; and is equipped with an inoculating wire which extends axially along the tubular member through aligned intramural openings between the compartments . to prevent contamination between compartments , and maintain them in a sterile condition before introduction of bacteria cultures , the intramural openings are sealed with drops of wax in a two - step process . in a first step , the inoculating wire , which extends beyond the ends of the tubular member , serves to support the tubular member with the compartment openings directed downward over a vat of molten wax . a reciprocating comb having a plurality of prongs is mechanically moved from a lower position in which it is immersed in the molten wax , to an upper position , in which the prongs engage the compartment openings . the prongs of the comb have recesses or v - shaped notches in the upper ends , which function to carry puddles of molten wax to immerse and coat portions of the inoculating wire when the prongs engage the respective tubular compartments . in a second step , the plastic tubular member is disposed in a vertical position with the terminals of the inoculating wire engaged in closed - contact relation with the contacts of a heater circuit which heats the inoculating wire causing the wax deposits thereon to flow into and hermetically seal the space between the wire and the aligned intramural openings in each of the compartments .

the invention relates to a novel family of oligomeric and polymeric s - triazine and s - heptazine derivatives and to their use as an intermediate , e . g . as precursors for producing si // c / n / ceramics , as mesoporous materials such as , e . g ., catalyst carriers for storing gas or as a stationary phase for chromatography , as flameproofing agents , plastic additives or for other organic / inorganic functional materials .

a series of devices that allow for embedding of an image as a background while also affording the user the ability to write and print on the surface , with erasable capabilities , thus providing a multifunctional product for use in numerous industries . the devices are manufactured from predominately corrugated plastic . in one embodiment , a writable board , or peg board comprising a front panel and a rear panel wherein the panels are interconnected by parallel rows , or corrugations , these panels include a writable and erasable surface . the present invention relates to novel assemblies of conventional corrugated plastic sheets to better serve personal , business , and educational needs .

an exemplary thin film appliqué includes a polymer film having first and second sides . a pattern layer has first and second sides , and the first side of the polymer film and the first side of the pattern layer are positioned adjacent each other . a pressure - sensitive adhesive underlies one of the second side of the pattern layer and the second side of the polymer film . a clearcoat covers one of the second side of the polymer film and the second side of the pattern layer that is not overlying the pressure - sensitive adhesive , and thickness of the clearcoat is equalized toward a combined thickness of the polymer film , the pattern layer , and the pressure - sensitive adhesive . the polymer film , the pattern layer , and the pressure - sensitive adhesive exhibit chemical affinity for each other .

a method and apparatuses for determining the total content of proteases by means of measuring their enzyme activity after previous deinhibition is disclosed . in biological samples , lysosomal proteases are completely or partly inhibited . a method proposed for the deinhibition entails immersing a solid support material as plastic strip to which is linked , covalently or by adsorption , an inhibitor - binding substance which binds the inhibitor corresponding to the protease more strongly than the protease in the sample for measurement . after the deinhibition has taken place , the plastic strip is removed from the liquid sample for measurement , and the sample for measurement is passed on for measurement of the enzyme activity . fluorogenic substrates from which the fluorogen 7 - amino - 4 - trifluoromethylcoumarin is eliminated proved to be particularly advantageous for the activity measurement . these substrates make it possible for the sensitivity on measurement in microtitre plates with a fluorescence reader to be at least 10 times higher compared with conventional amc substrates in blood serum , and thus for the fluorimetric determination of such enzyme activities in blood serum to be efficient with this measuring arrangement which is widely used in clinical laboratories .

this invention relates to an improved injector / valve combination which permits nearly immediate response time to an actuator signal . such a combination is particularly suited for injecting colorants into polyurethane slabstock foam and permits a substantial reduction in foam waste due to low colorations during an on / off cycle . specifically , this invention combination comprises a novel ball valve which allows for instantaneous shut - off and - on without appreciable leakage or pressure drop and without the need to utilize a high throughput flow rate . such a ball valve is used in combination with an injector which is actually attached to the valve , the configuration which permits continuous use and instantaneous on / off without a deleterious pressure drop and minimizes the possibility of turbulence as the liquid polymeric colorant flows through the injector . the ball valve , the attached injector configuration , the coloring apparatus comprising the inventive ball valve and / or the attached injector configuration , and the slabstock foam colored through the utilization of such an apparatus are also contemplated within this invention .

a new and improved polymeric membrane for use in biological assays is provided . a blotting assay employing 1 , 2 - dioxetanes as a source of chemiluminescent employs , as an improved membrane , a polymer comprised of at least one monomer of the formula : ## str1 ## the membranes reduce background signal , improve sensitivity and reliability .

a leadthrough configuration has a metallic conductor embedded into a plastic wall . the plastics material and the conductor material have different coefficients of thermal expansion . the conductor is formed in such a way that , when there is a change in temperature , at least one portion remains in the leadthrough path , wherein oppositely directed sealing forces act on the conductor .

a band - shaped film of a suitable plastic material is conveyed and is formed into a tubular shape during its travel , articles to be packed are conveyed and transferred into the tubular film at intervals and the tubular film is sealed at a predetermined pitch into individual bags . the tubular film is fed at a substantially constant speed and each article is conveyed at about the same speed as that of the tubular film during at least a period in which the article is transferred into the tubular film .

an endoluminal prosthesis including a radially expandable support member having interior and exterior surfaces and a wall with openings , a first covering member including a biocompatible polymer material at least partially positioned against the interior surface , and a second covering member including a biocompatible polymer material at least partially positioned against the exterior surface . the first covering member attaches to the second covering member at predetermined bonding locations within less than all of the openings thereby leaving unbonded regions .

described is a design and method for producing a sputtering target assembly with low deflection made from target material solder bonded to composite backing plate with coefficient of thermal expansion matching the target material . the composite backing plate is composite configuration composed of at least two different materials with different cte . the composite backing plate , after plastic deformation , if necessary , has a cte matching the target material and low and desirable deflection in the bonding process , and therefore , resulting in a low deflection and low stress target material bonded to composite backing plate assembly . the method includes manufacturing composite backing plate with a flat bond surface , heat treating of target blank and composite backing plate to achieve desirable shape of bond surfaces , solder bonding target to a backing plate , and slowly cooling the assembly to room temperature . matching cte in both target material and backing plate eliminates the problem of cte mismatch and prevents the assembly from deflection and internal stress .

a two layer thermoplastic fuel container having a capacity of about 5 gallons or less is disclosed that includes an inner barrier layer of polyacetal resin in intimate unbonded surface - to - surface contact with an outer polyolefin layer operative to absorb impact and distribute an applied force , the two layers optionally being mechanically linked at one or more copular regions , but being otherwise capable of independent local displacement with respect to each other . not having a bond between the layers allows them to move independently upon impact or when internal / external forces are applied . also disclosed are methods for making these fuel containers .

a method for finishing a repaired surface is described . the method includes wiping a sealer on the repaired surface to seal microporosity in the repaired surface , the sealer consisting essentially of a mixture of polymer , at least one filler , solvent , and optionally microspheres ; and applying a top coat to the sealed surface without sanding the sealed surface , the top coat being free of visible pinholes . sealers and tools for applying surface sealers are also described .

a multilayer film includes a core layer having recycled , commercially used plastic therein and opposed skin layers , at least one of said opposed skin layers including a whitening agent or other pigmenting agent therein to mask any undesired coloration created by the recycled plastic . laminations employing the above multilayer film also form part of this invention . a method of this invention for making a multilayer film including a core layer with recycled plastic therein includes the steps of : separating a plastic film or label from a package of commercial product ; pelletizing the plastic film or label into pellets for introduction into an extruder of a film forming device and introducing the pelletized plastic film or label into said extruder for introducing the recycled plastic film or label pellets into a core layer of a multilayer film .

an insert - molded suture anchor with a biodegradable polymer body in which a loop of suture is totally contained within the polymer . the suture anchor body features a drive end that is shaped to be received into a recess in the end of a hand driver . anchoring ribs are formed along the remaining length of the anchor . the loop of suture which includes and eyelet for attaching a suture strand is totally embedded within the anchor body during the insert - molding fabrication process . the anchor is produced by placing the suture in an injection mold , and injecting biodegradable polymer into the mold .

a method and apparatus for injection molding articles from a thermoplastic or similar material . a plurality of molds are mounted on a turntable and are indexed to selected positions as the turntable rotates about its axis of rotation . radial slots divide the turntable into sectors , each having a mold thereon . a clamping mechanism is provided which successively deflects each sector slightly from the plane of the turntable in order to precisely align the mold thereon with an injection nozzle and then securely clamps the halves of the mold together while the injection nozzle injects moldable material into the cavity in the mold . interchangeable cavities with different size and shape characteristics are provided in the injection molds and associated with each mold is a resettable indicator designating the particular type of cavity presently installed in that mold . a sensor unit responsive to the indicators provides a control unit with an indication of the characteristics of the cavity in each mold when it is aligned with the injection nozzle and the control unit adjusts the parameters of the injection operation to correspond to those characteristics . in one embodiment , two injection nozzles are provided and an annulus is inserted into each mold cavity to separate the cavity into two portions , each of the nozzles injecting moldable material into a respective one of the cavity portions .

an energy absorbing structural member disposed within the passenger compartment of a motor vehicle and including an outer cell and an inner cell . the outer cell of the structural member provides conventional torsional , bending and compressive rigidity necessary for such structural member . additionally , the inner cell is adapted to plastically deform under a predetermined generally transversely imposed load , the load being substantially insufficient to deform the outer cell .

a composite structure , and method of manufacturing it , having a specified width , length , and height defining a top and bottom the composite structure . the composite structure includes a three dimensional structural core constructed of a polymer with a first series of a geometric pattern repeated along its length . the structural core also has a second series of the geometric pattern repeated along the width thereof . the geometric patter may be a sinusoidal curve or a substantially pyramidal shape . the composite structure also includes a first reinforcement layer made of a polymer positioned above the structural core and bonded thereto . it also includes a second reinforcement layer made of a polymer that is positioned below the structural core and bonded thereto . the composite structure may also include a decorative layer above the first reinforcement layer , an acoustical batting layer positioned between the first reinforcement layer and the structural core , and may include fire retardant chemicals .

methods of preparation and application of sulfur functionalized polymers . more particularly , triazine , cyclotriphosphazene and / or phenyl derivatives can be polymerized to form sulfur functionalized polymers . the materials can be used for separating heavy metals from gas and liquid . the invention is a solid extractant or sorbent that upon exposure or contact with a gas and / or liquid can remove contaminates or impurities . the material can be employed as a solid agent to remove mercury and other heavy metal from combustion , calcinations and / or industrial gases . also , the material can be applied as extracting agent for removing mercury and other heavy metal from a liquid phase . further , the material can be used for removing / recovering hazardous elements from radioactive nuclear waste ; or can be used for removing organic compounds from gases and liquids .

a flexible and reusable plastic window covering is designed to be selectively attached over an existing window opening to reduce or eliminate air leakage and drafts . either hook and loop fasteners or locking strips can be used to attach the plastic sheath over a window opening and , if desired , the sheath can be provided with a zipper to allow air flow through the window . special locking strips can be used to securely attach the flexible sheath over a window opening while facilitating an easy removal when required .

coated abrasive binders made from a photocurable addition - polymerizable composition containing a free - radically - polymerizable monomer and a photoinitiator system containing an arylidonium salt , a sensitizing compound , and an electron donor having an oxidation potential that is greater than zero and less than or equal to that of p - dimethoxybenzene . the binders cure rapidly and deeply under ultraviolet or visible light , even when filled with large amounts of mineral grain or with coarse grades of minerals .

provided is a method for preparing vinyl chloride with acetylene and dichlorethane for large - scale industrial production . acetylene , dichlorethane vapor and hydrogen chloride gas at a molar ratio of 1 :: are mixed ; the raw mixed gas is preheated ; the preheated raw mixed gas passes through a reactor containing a catalyst and reacts ; the resultant mixed gas is cooled to 30 - 50 ° c . and pressurized to 0 . 4 - 1 . 0 mpa , and then cooled to ambient temperature , and further frozen to − 25 - 15 ° c . for liquefaction isolation , and unliquefied gas is recycled and reused ; liquefied liquid is sent to a rectifying tower for rectification , and vinyl chloride monomers meeting polymerization requirements are obtained . the present invention has the advantages of eliminating mercury contamination completely , simplifying the reactor structure , recycling hydrogen chloride and acetylene , reducing waterwash process , avoiding mass production of waste acid and improving utilization of chlorine .

a resorbable interbody fusion device for use in spinal fixation is disclosed . the device is composed of 25 - 100 % bioresorbable or resorbable material . the interbody fusion device of the invention can be in any convenient form , such as a wedge , screw or cage . preferably , the resorbable device of the invention is in the shape of a tapered wedge or cone , which further desirably incorporates structural features such as serrations or threads better to anchor the device in the adjoining vertebrae . the preferred device further comprises a plurality of peripheral voids and more desirably a central void space therein , which may desirably be filled with a grafting material for facilitating bony development and / or spinal fusion , such as an autologous grafting material . as the preferred material from which the resorbable interbody fusion device is manufactured is most likely to be a polymer that can produce acidic products upon hydrolytic degradation , the device preferably further includes a neutralization compound , or buffer , in sufficiently high concentration to decrease the rate of ph change as the device degrades , in order to prevent sterile abscess formation caused by the accumulation of unbuffered acidic products in the area of the implant .

the present invention provides , among others , compounds of formula or a salt thereof , methods for making these compounds , degradable polymers and reinforced composites made therefrom , and methods for degrading and / or recycling the degradable polymers and reinforced composites .

novel membranes comprising various polymers containing heterocyclic nitrogen groups are described . these membranes are usefully employed in electrochemical sensors , such as amperometric biosensors . more particularly , these membranes effectively regulate a flux of analyte to a measurement electrode in an electrochemical sensor , thereby improving the functioning of the electrochemical sensor over a significant range of analyte concentrations . electrochemical sensors equipped with such membranes are also described .

novel membranes comprising various polymers containing heterocyclic nitrogen groups are described . these membranes are usefully employed in electrochemical sensors , such as amperometric biosensors . more particularly , these membranes effectively regulate a flux of analyte to a measurement electrode in an electrochemical sensor , thereby improving the functioning of the electrochemical sensor over a significant range of analyte concentrations . electrochemical sensors equipped with such membranes are also described .

this invention describes a new type of covalent - network ternary inorganic metal sulfide compounds m 1 m 2 s 4 and a process for preparing the biocompatible nanoparticles of such compounds . the nanoparticles are surface - modified with a capping agent and / or a biocompatible polymer and have the size from a few nanometers to several thousand nanometers . these nanoparticles are nontoxic and can be internalized by cells to deplete copper ions via a highly selective ion - exchange reaction between the intracellular copper ions and the divalent ion bound in the nanoparticles for the application of inhibiting angiogenesis in cancer and other diseases .

a coating and method for a coating an implantable device or prostheses are disclosed . the coating includes an undercoat of polymeric material containing an amount of biologically active material , particularly heparin , dispersed therein . the coating further includes a topcoat which covers less than the entire surface of the undercoat and wherein the topcoat comprises a polymeric material substantially free of pores and porosigens . the polymeric material of the topcoat can be a biostable , biocompatible material which provides long term non - thrombogenicity to the device portion during and after release of the biologically active material .

a method is provided for the solderless electrical connection of two contact elements by using a laser light beam attached to a fiber optic system which directs the light to the spot to be bonded . by using a fiber optic system the laser beam is optimally converted into thermal energy and bad connections due to underheating or destruction of the contacts due to overheating does not occur . the method and apparatus provides rapid , reproducible bonding even for the smallest of contact geometries . for example , the method of the invention results in solderless gold to gold compression bonding of conductive leads contained in a polymer flex circuit tape , such as a polyimide , without damaging the tape . a strong solderless gold to gold bond can be formed between the gold plated copper lead on the flex circuit tape and a gold plated pad on a semiconductor chip without the need for a window in the flex circuit and without any damage to the tape . in the application of the present invention to the bonding of conductive leads on a tab circuit to the silicon substrate of an inkjet printhead the need for a window in the tab circuits is eliminated . the elimination of the window results in elimination of the need for an encapsulation material to cover the conductive leads in the tab circuit . this in turn results in die size reduction , or increased number of nozzles with the same die size , ease of assembly , higher yields , improved reliability , ease of nozzle serviceability , and overall material and manufacturing cost reduction .

methods for controlling wax and other contaminants by improving the dispersion of these materials through the addition of treatment agents such as plasticizers , dispersants or wetting agents to the process of recycling paper and paperboard are disclosed . preferred treatment agents include polymeric wetting agents , dispersants , plasticizers and combinations thereof .

this disclosure provides methods of controlled polymerization of cyclic compounds catalyzed by carbene derivatives having a general formula as shown below , and to obtain a biodegradable polymeric material having a large molecular weight , a narrow dispersity , and no metallic impurity .

a hybrid rocket motor is manufactured by photopolymerizing the solid fuel grain in a stereolithography method , wherein fuel grains in a plastic matrix are deposited in layers for building a solid fuel rocket body in three dimensions for improved performance and for a compact design , the hybrid rocket motor including radial channels for defining a desired burn profile including the oxidizer to fuel burn ratio .

a sheet processing system for continuously producing plastic sheet which is continuously supplied to an intermittent take - up device , utilizing a sheet forming apparatus , a conveyor , an accumulator and take - up apparatus , the sheet being fed along the conveyor to an accumulator positioned integrally with the conveyor , the accumulator being controlled in a cyclic operation which provides for the accumulation of the continuously fed sheet material to permit intermittent operation of the take - up apparatus , and the edge trimming of the sheet subsequently to the action of the accumulator .

a method for treatment of an organic material containing art object , such as a wood carving , a painting on wood or canvas , a textile hanging or a tooled leather saddle , for preservation and restoration thereof . the method includes the steps of partially impregnating the art object with an unsaturated resin and exposing the partially impregnated art object to a large dose of radiation to polymerize the resin , without addition of any catalysts and without the production of any significant exothermic reaction . the polymerized resin strengthens the art object and the radiation sterilizes the art object , destroying insects , molds , and other destructive biological vectors .

a medical device is provided which forms a physical barrier between the two ends of a cut vas during a vasectomy procedure , comprising a biodegradable , polymeric cap that is applied over at least one prostatic end of the vas , the cap including a fastener for preventing premature dislodgement .

a product having a textured surface thereon is disclosed wherein the textured surface is obtained by relieving the stress in pre - stressed polymeric chips that have been distributed as a single layer throughout a polymeric layer superimposed on a substrate .

bioresorbable or biodegradable polymers formed from the monomers including sulphonyl diphenol , hydroxybenzoic acid and dicarboxylic acid . the dicarboxylic acid can include aliphatic dicarboxylic acid or a mixture of aliphatic dicarboxylic acid and aromatic dicarboxylic acid . between 25 and 85 molar percent of the polymer is formed from the hydroxybenzoic acid , between 7 . 5 and 37 . 5 molar percent of the polymer is formed from the sulphonyl diphenol , and between 7 . 5 and 37 . 5 molar percent of the polymer is formed from the dicarboxylic acid . polymers can be used for manufacturing fibers and composite devices .

an electro spinning process yields uniform , nanometer diameter polymer filaments . a thread - forming polymer is extruded through an anodically biased die orifice and drawn through an anodically biased electrostatic field . a continuous polymer filament is collected on a grounded collector . the polymer filament is linearly oriented and highly uniform in quality . the filament is particularly useful for weaving body armor , for chemical / biological protective clothing , as a biomedical tissue growth support , for fabricating micro sieves and for microelectronics fabrication .

enhanced performance yarns which comprise , and are functional and economic alternatives to , 100 % petroleum oil based virgin continuous filament yarns , and yarns of natural fibers and methods of making them . the yarns may comprise an inner portion of spun staple fibers of recycled plastic and an outer portion comprising a different material and incorporate highly significant amounts of recycled plastics , particularly post consumer recycled , thermoplastic material such as polyethylene terephthalate which contains medium to high levels of contamination . one embodiment of yarn comprises a core , an inner portion of spun staple fibers surrounding the core , and an outer portion comprising an inner helix and an outer helix formed of a material different from the inner helix .

rna polymerase i is a dedicated polymerase for the transcription of the 47s ribosomal rna precursor subsequently processed into the mature 5 . 8s , 18s and 28s ribosomal rnas and assembled into ribosomes in the nucleolus . pol i activity is commonly deregulated in human cancers . based on the discovery of lead molecule bmh - 21 , a series of pyridoquinazolinecarboxamides were synthesized as inhibitors of pol i and activators of the destruction of rpa194 , the pol i large catalytic subunit protein . the present invention identifies a set of bioactive compounds , including purified stereoisomers , that potently cause rpa194 degradation that function in a tightly constrained chemical space . pharmaceutical compositions comprising these compounds and their uses in cancer and other pol i related diseases is also provided .

this invention relates to hydrolytically degradable gels of crosslinked poly glycol structures . addition of water causes these crosslinked structures to swell and become hydrogels . the hydrogels can be prepared by reacting two different peg derivatives containing functional moieties at the chain ends that react with each other to form new covalent linkages between polymer chains . the peg derivatives are chosen to provide covalent linkages within the crosslinked structure that are hydrolytically degradable . hydrolytic degradation can provide for dissolution of the gel components and for controlled release of trapped molecules , including drugs . reagents other than peg can be avoided . the hydrolysis rates can be controlled by varying atoms adjacent to the hydrolytically degradable functional groups to provide substantially precise control for drug delivery in vivo .

a method and apparatus for molding a composite plastic article having a piece of plastic film fused to the outer surface of the plastic article at a location away from the main parting line of the mold in which the plastic article is formed .

the composition as described serves for in vivo cartilage repair . it basically consists of a naturally derived osteoinductive and / or chondroinductive mixture of factors or of a synthetic mimic of such a mixture combined with a nanosphere delivery system . a preferred mixture of factors is the combination of factors isolated from bone , known as bp and described by poser and benedict . the nanosphere delivery system consists of nanospheres defined as polymer particles of less than 1000 nm in diameter in which nanospheres the combination of factors is encapsulated . the nanospheres are loaded with the mixture of factors in a weight ratio of 0 . 001 to 17 % , preferably of 1 to 4 % and have a release profile with an initial burst of 10 to 20 % of the total load over the first 24 hours and a long time release of at least 0 . 1 per day during at least seven following days . the nanospheres are composed of e . g . - lactic acid / glycolic acid )- copolymer . the loaded nanospheres are e . g . made by phase inversion . the composition is advantageously utilized as a device comprising any biodegradable matrix in which the nanospheres loaded with the factor combination is contained .

a system for performing molecular biological diagnosis , analysis and multi - step and multiplex reactions utilizes a self - addressable , self - assembling microelectronic system for actively carrying out controlled reactions in microscopic formats . these reactions include most molecular biological procedures , such as nucleic acid hybridization , antibody / antigen reaction , and clinical diagnostics . multi - step combinatorial biopolymer synthesis may be performed . a controller interfaces with a user via input / output devices , preferably including a graphical display . independent electronic control is achieved for the individual microlocations . in the preferred embodiment , the controller interfaces with a power supply and interface , the interface providing selective connection to the microlocations , polarity reversal , and optionally selective potential or current levels to individual electrodes . a system for performing sample preparation , hybridization and detection and data analysis integrates multiple steps within a combined system . charged materials are transported preferably via free field electrophoresis . dna complexity reduction is achieved preferably by binding of dna to a support , followed by cleaving unbound materials , such as by restriction enzymes , followed by transport of the cleaved dna fragments . active , programmable matrix devices are formed in a variety of formats , including a square matrix pattern with fanned out electrical connections , an array having electrical connections and optionally optical connections from beneath the specific microlocations . a highly automated dna diagnostic system results .

it is an object of the present invention to provide a nanoparticle which comprises a blood circulation promoter and a biodegradable polymer , which is safe and excellent in terms of dispersion stability and has high transparency and good absorbability due to its small particle size . the present invention provides a water - dispersible nanoparticle which comprises a blood circulation promoter and a biodegradable polymer .

a kit for forming a bioerodible composition is provided with a first aliquot portion of a reaction mixture having an aldehydic polymer solution , and a second aliquot portion of a reaction mixture having solids which include a cross - linking hydrazide . when mixed , the first and second aliquot portions of the reaction mixture react at a ph of 4 to 6 to form a solidified bioerodible composition within about 1 to about 10 minutes , to form a hydrazide cross - linked aldehydic polymer matrix . the bioerodable composition may be usefully employed to seal and / or treat wounds .

an aqueous - based inoculant composition in liquid form for leguminous seeds that produces an immediate nodule formation and an increased nitrogen fixation , containing microorganisms of the rhizobium or bradyrhizobium genus , a molybdenum compound selected from alkali metal molybdates and a compound that neutralizes the seed exudates , which are toxic for the bacteria , selected from polymers of compounds presenting an amide , amine or imine moiety . the inoculant composition remains stable at room temperature , keeping the number of viable bacteria over long periods of time and ready to be used .

the guard rail support attachment and positioning block or spacer block is used to space guard railing away from posts such as “ i ” beams which are driven into the ground . the spacer block keeps automobile wheels from impacting the i beams and initiating a roll of the vehicle . the spacer block is a generally rectangular block or cube including corded - out cavities to reduce weight and tabs or projections which cooperatively engage the side of the post and the edge of the guard rail to position and hold same in position for attachment with holding members such as bolts . webbing can be used to provide structural support within the cavity . the spacer block may be formed by low pressure injection molding to form a structural foam spacer block to optimize the strength to weight characteristics of the spacer block . the spacer block may be formed of a virgin and / or recycled plastic material and / or include virgin or recycled rubber material such as from obtained from the regrind of used tires and / or another elastomeric material from other sources .

a bentonite clay - based polymerization catalyst is manufactured by adhering together a plurality of smaller acid - activated bentonite clay particles , using a strong mineral acid , such as h 2 so 4 , as a binder . an acid - activated bentonite clay having a particle size below about 60 mesh , u . s . sieve series , preferably calcium bentonite , having calcium as a predominant exchangeable action , is mixed with a strong mineral acid , preferably h 2 so 4 , and water to form the catalyst . the mixture is subjected to intensive mixing , curing and drying to form strong particles capable of grinding to a desired particle size distribution , e . g ., - 6 mesh to + 60 mesh , u . s . sieve series , to form the catalyst . fines resulting from the grinding step are completely recycled to the intensive mixing stage of the process to achieve 100 % yield . some adjustment of acid content of the mix may be needed to take into account the acid carried into the mix by recycled fines .

the present invention provides a method for producing nano - sized fe powder having a polymer coated layer on a surface thereof , so as to prevent the nano - sized fe powder from being oxidized under atmosphere . the method includes : gasifying an iron pentacarbonyl 5 ) or an iron acetate 2 fe ) precursor in a ceramic bubbler ; forming nano - sized fe particles due to the crystallization of fe gas while mixing the gasified precursor with ar gas in a reactor ; and precipitating the nano - sized fe particles in a polymer solution in a chamber , before the nano - sized fe particles are oxidized . according to this technique , fe powder on the order of tens of nms in size , and having a polymer coated layer , are obtained from the fe precursor . a system for producing the nano - sized fe powder is also disclosed .

the present invention relates to an improved method for reclaiming and recycling developing solvents used in the production of flexographic printing plates . more specifically , the invention relates to reclaiming and / or recycling of the developing solvent through centrifugation and / or filtration . according to the invention , the solvent used in developing printing plates can be reclaimed and / or recycled by simply centrifuging the polymer - contaminated solvent . in certain embodiment , the centrifuged solvent is further filtered . the process involves transferring the contaminated solvent , from a plate processor or a dirty holding tank , to a centrifuge , and centrifuging the contaminated solvent to remove the polymer . the reclaimed solvent can be transfer directly back to the plate processor or to a clean holding tank .