baber/WOPTO huggingface dataset:
Patent CA-1228694-A (CA)
Inventor: CUNNINGHAM ROBERT E
IPC: C08F220/14
Filed: 1984-03-19
Granted: 1987-10-27
Abstract: Patent Application of ROBERT E. CUNNINGHAM AND ALBIN P. BERZINIS                    for CAST ACRYLIC SHEET WITH IMPROVED RESISTANCE             TO THERMAL RELAXATION DN 82-60      MSA/ets Abstract of the Disclosure A terpolymer composition comprising the polymerized product of a major amount of methylmethacrylate and a minor amount of maleic anhydride and styrene is provided.  The composition is useful in preparing cast sheet which is resistant to thermal relaxation and which meets the requirements for aircraft glazing applications.  The cast sheet is optically clear, simple to prepare, and less expensive than prior cast sheet.  The terpolymer preferably comprises the polymerized product of from about 95 to 93 weight percent methylmethacrylate monomer, and from about 7 to about 5 weight percent of a monomer mixture of maleic anhydride and styrene where the molar ratio of maleic anhydride monomer to styrene monomer is at least one to one.
Patent CA-1209131-A (CA)
Title: Process for the modification of starch in an aqueous  medium
Inventor: AMORT JUERGEN
IPC: D06M13/02
Filed: 1984-03-20
Granted: 1986-08-05
Abstract: ABSTRACT OF THE DISCLOSURE:         The present invention is concerned with the modification of starch by means of silanes.  The modifica-tion takes place in such manner that the starch is brought into intimate contact with the hydrolysates of the silanes in the presence of alkali aluminates.  Preferably this takes place in the aqueous solution of the silane hydrolysate; in which case the additives can be used either in aqueous solu-tion or in solid form. The aluminate and the alkali hydrox-ide must be present in such amounts that 0.4 mol of aluminate is present per mol of silane.  The modification is not only possible with alkylalkoxy silanes, but also with organo-functional alkoxysilanes.  The starch modified with the silanes shows better working properties than corresponding unmodified starch.  It can be used, for instance for the hydrophobation and oleophobation of cellulose containing material.
Patent CA-1205613-A (CA)
Inventor: MICHELSON ANATOL
IPC: B22C13/08
Filed: 1984-03-21
Granted: 1986-06-10
Abstract: ABSTRACT      A method for the production of hollow foundry sand cores in which binder coated sand is cured in the core pattern cavity of a core box using an amine catalyst gas to form a hollow sand core, and uncured binder coated sand is discharged and recovered from the cavity of the hollow sand core.  Fresh binder coated sand and recovered binder coated sand are volumetrically metered alternately to a blow head so that at no time is there a mixture of the two sands in the blow head.    The metered binder coated sand in the blow head is blown by compressed air through an investment aperture in the top of the core box into the core pattern cavity.    After gassing, an uncured binder coated sand is discharged and recovered from hollow sand cores while fresh binder coated sand is being metered to the blow head.  Metering of fresh binder coated sand is discontinued after a predetermined period of time equivalent to about 1/10 to about 1/3 of the bench life of the binder coated sand.  At this point, metering of recovered binder coated sand to the blow head is commenced and continued until essentially all of the sand is consumed in hollow core formation.      The metering of fresh binder coated sand is then recommenced and the procedure repeated.
Patent CA-1255622-A (CA)
Inventor: COMBS DANIEL J
IPC: C25D3/38
Filed: 1984-06-07
Granted: 1989-06-13
Abstract: Abstract of the Disclosure A process for electrodepositing a substantially uniformly hard, bright, leveled and ductile engineering copper plate on a conductive substrate, and particularly, on rotogravure printing cylinders, which copper deposit is further characterized as being substantially non-annealing thereby retaining its hardness for prolonged time periods following the electroplating step rendering the plate eminently suitable for mechanical engraving.  The process employs an aqueous acidic copper electrolyte containing controlled amounts of a selected combination of organic brightening agents and the electrodeposition of the copper plate is performed under controlled processing conditions at a selected threshold current density to attain a copper deposit possessing the aforementioned beneficial characteristics.  The combination of organic brightening agents includes an organic polyether compound, an organic sulfide compound, an apo safranine compound, a substituted phthalocyanine compound and an alkylated polyethyleneimine reaction product having a quaternary nitrogen.
Patent CA-1217140-A (CA)
Title: Thin film coated tablets
Inventor: TENCZA THOMAS M
IPC: A61K9/28
Filed: 1984-06-21
Granted: 1987-01-27
Abstract: ABSTRACT OF THE DISCLOSURE     A film coated tablet of improved swallowability and bioavailability and containing at least one pharmaceu-tically active ingredient, said tablet being thinly coated with a film comprising as film forming agents the combination of hydroxypropyl methylcellulose; ethylcellulose and poly-vinyl pyrrolidone; said film coating being sufficiently thin as to be substantially totally disintegrated by the gastric fluids during the time that the tablet is normally in the stomach of the subject after ingestion.
Patent CA-1224131-A (CA)
Inventor: EDWARDS DAVID M
IPC: F23G7/08
Filed: 1984-07-20
Granted: 1987-07-14
Abstract: ABSTRACT OF THE DISCLOSURE     Burner A burner suitable for use in a ground flare has a fuel gas supply pipe shaped to have a low resistance to upward air flow.  The fuel gas supply pipe has one or more outlets in its upper surface which direct fuel gas onto adjacent plates to cause spreading and mixing of the fuel gas with aspirated air.  The plates have a top edge adapted to give flame retention.  The central portion of the upper edge of the plate is inclined into a substantially horizontal position towards the fuel gas outlet and the outer portions of the plate are inclined in the direction away from the fuel gas outlet.
Patent CA-1221798-A (CA)
Inventor: BRONSTERT KLAUS
IPC: C08F6/00
Filed: 1984-10-04
Granted: 1987-05-12
Abstract: Abstract of the Disclosure:  The processing properties of isobutene polymers are improved by a method in which these polymers are brought into contact, for an effective period, - with aluminum oxide and/or a completely or partially hydrated aluminum oxide at 50 - 280°C, and/or - with boron oxide and/or a completely or partially hydrated boron oxide and/or with titanium dioxide and/ or a partially hydrated titanium dioxide and/or with a completely or partially hydrated silicon dioxide at 0 -280°C.
Patent CA-1247995-A (CA)
Inventor: LEDIS STEPHEN L
IPC: G01N33/48
Filed: 1984-10-17
Granted: 1989-01-03
Abstract: ABSTRACT     A method and reagent system is described for differential determination of three-populations of leukocytes (lymphocyte, monocyte and granulocyte), using an automatic counting system.  The reagent system includes a blood diluent and lysing reagent.  The blood diluent is an osmotically balanced aqueous solution of ingredients at a preselected pH for maintaining erythrocyte morphology, blood cell stabilizing, buffering and bacteriostatic action.  The lysing reagent is a mixture of an aqueous solution of quaternary ammonium salts, which lysing reagent is added to the diluted blood under more mild conditions of concentration and at a slower rate than is current practice in order to obtain an unexpected volumetric modification of at least one of the three-populations of leukocytes, whereby volumetric differential analysis can be accomplished.
Patent CA-1238245-A (CA)
Inventor: MOTOYAMA SHIMESU
IPC: B05B7/00
Filed: 1984-10-31
Granted: 1988-06-21
Abstract: ABSTRACT OF THE DISCLOSURE:    Coating method and apparatus, in which jet streams of a high-pressure fluid are ejected in the opposed directions into a pulverization zone in a pulverizer to hit a raw material conveyed by one of the jet streams on the other and thereby pulverize the same, the surfaces of particles of the resultant raw material are coated at the same time that the pulverization is done.  The raw material to be pulverized is fed into the pulverization zone with a jet stream or by a mechanical means to be then accelerated by a jet stream therein.  A coating material is fed in the same direction in which a jet stream flows, or directly into the pulverization zone.
Patent CA-1224436-A (CA)
Inventor: OTOMO YOSHIMI
IPC: B66B21/06
Filed: 1984-11-07
Granted: 1987-07-21
Abstract: ABSTRACT OF THE DISCLOSURE           A frame structure for a curved escalator comprises a plurality of truss units connected to each other to define an arc in plan, the frame structure having upper and lower horizontal sections and a sloped section therebetween.  The frame structure further comprises an upper transient section including at least one truss unit and connected between the upper horizontal section and the sloped section, and a lower transient  section  including  at  least  one  truss  unit  and connected  between  the  lower  horizontal  section  and  the sloped section.
Patent CA-1246091-A (CA)
Title: Silalactones and methods for their preparation and  use
Inventor: CHANDRA GRISH
IPC: C08G77/00
Filed: 1984-11-08
Granted: 1988-12-06
Abstract: SILALACTONES AND METHODS FOR THEIR PREPARATION AND USE            Abstract Carboxyalkyl-substituted organopolysiloxanes are prepared by hydrolysis of a silalactone composition having the formula   where n has an average value greater than zero, R and Q are hydrocarbon and X is Cl or Br.  Silicon-containing compounds having the formula RaZbSiO(4-a-b)/2, where Z is a hydrolyzable radical, can be cohydrolyzed therewith.  The novel silalactone composition is prepared by gently heating a mixture of an ester having the formula X2R SiQCO2R' and a halide salt catalyst, such as tetrabutylammonium bromide.
Patent CA-1225941-A (CA)
Inventor: HUGHES LARRY R
IPC: B65D19/18
Filed: 1985-01-22
Granted: 1987-08-25
Abstract: ABSTRACT            A collapsible shipping container has a rectangular base and four side walls pivotally attached to the base and foldable from an erect condition to a collapsed condition.  Captive fastener means on the  walls are operated to interconnect them in the erected condition.  The entire shipping container is made of plastics material without the inclusion of any metal parts.
Patent CA-1256246-A (CA)
Inventor: PULLUKAT THOMAS J
IPC: C08F210/16
Filed: 1985-03-26
Granted: 1989-06-20
Abstract: ABSTRACT OF THE DISCLOSURE          Ethylene is copolymerized or interpolymerized with at least one olefinic comonomer having about 3 to 18 carbon atoms to produce linear low density polyethylene copolymers and terpolymers in a slurry process using liquid propane as the diluent.  The copolymer products have desirable physical properties including relatively narrow molecular weight distributions and low elasticities.
Patent CA-1265504-A (CA)
Inventor: KAR KISHORE K
IPC: C12N11/14
Filed: 1985-06-10
Granted: 1990-02-06
Abstract: ABSTRACT OF THE DISCLOSURE              Crystalline aluminates of the formula:       I. Li(R)??2Al(OH)3?nH2O, or II. Mm(R)?(A)??2Al(OH)3?nH2O where nH2O is zero or any required waters of hydration;       R is a monocarboxylic acid or dicarboxylic acid of C6-C22, including those which are OH- substituted; r is greater than zero and represents the number of R ions in the molecule;   v is the valence of R, being monovalent or divalent;       M is divalent Zn or Ca cations;     A represents inorganic anions of valence 1-3, represented by w;   y is equal to or greater than zero and represents the number of A anions;   wherein, in formula I, vr represents an amount of R anions to substantially satisfy the valence requirements of Li; 32,399A-F     wherein, in formula II, r>y and (vr + wy) represents an amount of combined anions, R and A, to substantially satisfy the valence requirements of M; with m representing the number of divalent M cations and having a numerical value in the range of about 1 to about 4, are found to improve the coefficient of friction and antiwear properties of lubication fluids subjected to shearing, rubbing, or grinding forces at elevated pressure. 32,399A-F
Patent CA-1263930-A (CA)
Inventor: BOSTON STEVEN L
IPC: C23C2/40
Filed: 1985-07-19
Granted: 1989-12-19
Abstract: PROCESS FOR CONTROLLING SNOUT ZINC VAPOR IN A HOT DIP ZINC BASED COATING ON A FERROUS BASE                 METAL STRIP ABSTRACT OF THE DISCLOSURE       A process for suppressing zinc vapor in the snout of a continuous line for hot dip coating one side or both sides of a ferrous base metal strip with a molten zinc or zinc based alloy by maintaining the atmosphere within the snout to include about 1-8% hydrogen by volume and about 300 ppm to 4500 ppm water vapor with the balance being one or more inert gases, such as nitrogen.  The atmosphere has a hydrogen/water vapor ratio of at least 4 to 1, or higher.  This atmosphere is oxidizing to zinc vapor but non oxidizing to the ferrous strip.
Patent CA-1249569-A (CA)
Title: Catalyst component for polymerization of olefins
Inventor: KOHORA TADANAO
IPC: C08F4/64
Filed: 1985-07-29
Granted: 1989-01-31
Abstract: ABSTRACT OF THE DISCLOSURE        A catalyst component for the polymerization of olefins which is prepared by contacting a contact reaction product of (a) a metal oxide, (b) an organic magnesium compound, and (c) an alkoxy group-containing compound held in contact with (d) a titanium compound.
Patent CA-1238656-A (CA)
Inventor: ELMER THOMAS H
IPC: H01K1/32
Filed: 1985-08-23
Granted: 1988-06-28
Abstract: Abstract of the Disclosure This invention  relates  to the  production  of transparent,   high   silica   glass   envelopes   for tungsten-halogen  lamps  consisting  essentially,   by weight,  of 1-2.5% Al2O3,  0.25-1% CaO,  0.1-0.25 Na2O and/or  K2O,  2.5-3.5%  B2O3,  0.15-0.3%  F,  and  the remainder SiO2.
Patent CA-1256982-A (CA)
Inventor: BOLGER THOMAS V
IPC: H04N17/04
Filed: 1985-08-26
Granted: 1989-07-04
Abstract: RCA 80,598 ABSTRACT OF THE DISCLOSURE           A video display apparatus convergence and correction arrangement includes a digital signal delay circuit which uses a sample interpolation technique to provide apparent signal delays corresponding to fractional parts of whole sample periods.  Adjacent digital samples are combined using fractional coefficients that sum to unity.  The selection of the fractional coefficients determines the size of the smallest delay increment.  The number of whole sample delay periods as well as the initial fractional coefficients for a given horizontal scan line are provided by information that is stored in a memory device during assembly or alignment of the video display apparatus.
Patent CA-1249860-A (CA)
Inventor: SHEVACH YORAM
IPC: B05B3/00
Filed: 1985-09-16
Granted: 1989-02-07
Abstract: ABSTRACT      A water sprinkler which includes a hollow sprinkler body, a rotor chamber within the body, a freely rotatable stem extending through the body and being in fluid flow communication with the rotor chamber, a sprinkler head on the open end of the stem for rotation therewith, a rotor within the chamber being freely rotatable about the stem and being capable of limited axial sliding movement relative thereto, a water inlet passage communicating with the interior of the stem and also water inlet ports directing water flow into the chamber to cause rotation of the rotor, striker means on the rotor co-operable with rotor impact receiving portions on the stem, arranged so that when water flows through the sprinkler, the rotor rotates at high speed and effects relative slower rotation of the stem and sprinkler head.
Patent CA-1268931-A (CA)
Inventor: YOSHIEDA KEIICHI
IPC: A44B19/42
Filed: 1985-10-07
Granted: 1990-05-15
Abstract: ABSTRACT OF THE DISCLOSURE     Separable slide fasteners are manufactured from an elongate slide fastener chain composed of a pair of slide fastener stringers having rows of coupling elements alternating with element-free portions having substantially U-shaped recesses defined in inner edges thereof.  The elongate slide fastener chain is fed under tension along a longitudinal path, and the slide fastener stringers are separated from each other.  Then, an insertion pin is attached laterally to the inner edge of one of the element-free portions, and a box pin is attached laterally to the inner edge of another element-free portion confronting said one element-free portion.  The insertion pin and the box pin which are laterally aligned with each other are threaded through a slider until certain coupling elements of the slide fastener stringers are interengaged.          Then, a box is attached to the box pin.  An elongate product composed of joined separable slide fasteners may be sewn to successive garment fabrics, or may be cut off into individual separable slide fasteners.
Patent CA-1258645-A (CA)
Inventor: WOLOWSKI ECKARD
IPC: B01J19/00
Filed: 1985-10-18
Granted: 1989-08-22
Abstract: ABSTRACT OF THE DISCLOSURE         According to the invention an almost isothermal tempera-ture profile of the reactor content, especially for thermally and pressure-stressed hydrogenation reactors in the sump phase, as well as utilization of the heat of reaction to be drawn off is achieved in that the largest portion of the heat of reaction is used for heating charges free of solids in the casing chamber of reactors and by way of comparison only small quantities of cold gas are used for adjusting the isothermal temperature profile.
Patent CA-1263993-A (CA)
Inventor: OUHADI TRAZOLLAH
IPC: C08F20/12
Filed: 1985-10-31
Granted: 1989-12-19
Abstract: This invention relates to a process for polymerizing acrylic monomers and possibly non-acrylic co-monomers by means of polymerization-initiating agents of the formula: R-M (I) in which M represents a metal selected among the alkaline and alkaline-earth metals and R represents an alkyl radical, which may have a straight or branched chain and contains 2 to 6 carbon atoms, or an aryl radical. The polymerization or copolymerization is effected in the presence of an additive consisting of a salt of an alkaline or alkaline-earth metal and of a mineral acid, such as lithium chloride.
Patent CA-1213407-A (CA)
Inventor: STANFORD FERDINAND G COVER HIL
IPC: E05D7/10
Filed: 1986-02-19
Granted: 1986-11-04
Abstract: ABSTRACT      "In bathroom doors which open inwards, it is impossible to remove the door if an obstruction such as a person dis-abled or laying  against the door prevents the door from opening.  This invention will permit the door to be re-moved instantly without destroying the door or the frame and causing possible injuries.  This can be done with the door knob locked or unlocked from the outside of the bath-room."
Patent CA-1268683-A (CA)
Inventor: OZDEMIR VELI
IPC: E04H3/16
Filed: 1986-03-10
Granted: 1990-05-08
Abstract: ABSTRACT A removable enclosure cover for a swimming pool or the like is disclosed. The enclosure cover includes a plurality of rigid frame members of rectangular panel sections. The frame members are spaced apart and extend parallel to one another transversely across the pool area. A flexible material is stretched between the frame members. A pair of spaced parallel channel-shaped track members extend along the sides of the pool and guide means is attached to the lower ends of each of the frame members. The guide means has rollers which extend into the interior of the track members. One roller rolls along the bottom of the track members and is mounted on a vertically movable carriage, permitting the frame members to be moved together to one end of the pool deck and collapsing the flexible material to uncover the pool. A threaded adjustment is provided for raising and lowering the carriage with the roller thereon so that the top portion of the track may be clamped between the roller carriage and the bottom of the frame member. The other roller is adapted to engage the sides of the track member to longitudinally guide the frame members.
Patent CA-1266220-A (CA)
Inventor: MACKAY DONALD H C
IPC: F16K31/12
Filed: 1986-03-19
Granted: 1990-02-27
Abstract: ABSTRACT OF THE DISCLOSURE          A water supply system for supplying water at a sub-stantially constant low pressure, including a reservoir with an inlet for high pressure water and an outlet for lower pressure water, and an equalising valve assembly coupled to the inlet and having a plurality of passages each of which is individually closable or opened by controlled valve means according to prescribed water level limits in the reservoir; to provide an arrangement in which said passages can be progressively opened so as to admit high pressure water to the reservoir on low pressure water draw off or progressively closed as the reservoir is filled.
Patent CA-1270474-A (CA)
Inventor: HELLER RUDOLF
IPC: F16M11/12
Filed: 1986-05-06
Granted: 1990-06-19
Abstract: INVENTOR:   RUDOLF HELLER          INVENTION:  SUPPORT APPARATUS FOR AN OPTICAL OBSERVATION             DEVICE                 ABSTRACT OF THE DISCLOSURE           The support apparatus in the form of a stand possesses an arm component projecting transversely from a stand component.  A surgical operating microscope is arranged at the end of the arm component.  A guide linkage with a double scissors type carrier linkage whose movement is combined with an extension movement is provided for the displacement of the operating microscope in a direction transverse to the stand component.  This extension movement is controlled by a control linkage in such a way that the upper end of the carrier linkage which carries the stand arm component moves along a straight line.  There is thus no need for a counterweight for the transverse movement of the operating microscope over a surgical operating table.  A first counterweight for the upwardly and downwardly directed  swinging movement of  the  stand arm component is enclosed in a space saving manner within a housing of the stand component, conjointly with a substantial portion of the guide linkage.  The connection between the arm component of the stand and the first counterweight is effected through linkages a predominant portion of which are likewise substantially accommodated within the housing.
Patent CA-1267911-A (CA)
Inventor: TANONAKA TAKAYUKI
IPC: B01J27/00
Filed: 1986-05-08
Granted: 1990-04-17
Abstract: ABSTRACT OF THE DISCLOSURE     Disclosed herein is a process for producing 6-hydroxy-2-naphthoic acid which is used as a monomer for producing aromatic polyesters having an ability of forming liquid crystals, comprising oxidizing 2-(2-hydroxy-2-propyl)naphthalene-6-carboxylic acid or a mixture of 2-(2-hydroxy-2-propyl)naphthalene-6-carbox-ylic acid and 2-(2-hydroperoxy-2-propyl)naphthalene-6-carboxylic acid by hydrogen peroxide in acetonitrile and/or dioxane in the presence of an inorganic acid.