baber/WOPTO huggingface dataset:
Patent CA-2004280-A1 (CA)
Inventor: JAIN MUKESH K
IPC: C01B32/956
Filed: 1989-11-30
Abstract: TITLE : PROCESS FOR PRODUCING SILICON CARBIDE PLATELETS AND THE         PLATELETS SO-PRODUCED            ABSTRACT OF THE DISCLOSURE      A process for producing silicon carbide platelets and the platelets so produced.  The process comprises reacting particles of a non-graphitizable form of hard carbon containing 0.5-1.5% by weight of aluminum and at least 0.2% by weight of iron (preferably  anthracite  coal,  most  preferably  Pennsylvania anthracite), with silica or a silica precursor at a temperature in the range of 1900 - 2100°C under an inert atmosphere.  If the carbon contains 0.2 - 1.0% by weight of iron, 0.1 - 10% by weight of boron, relative to the weight of sio2,   is added (if not already present).  The carbon is in the form of particles of less than 50µ and the silica or precursor is preferably in the form of particles of less than about 1 µ.  The weight ratio of silica to carbon is greater than 1.67:1.  The resulting platelets are substantially unagglomerated and preferably of a size of less than 50µ with an aspect ratio greater than 5.  The platelets can be used as reinforcements for ceramic and metal matrix materials.
Patent CA-2004604-A1 (CA)
Title: Glycine derivatives and preparation thereof
Inventor: IWAKUMA TAKEO
IPC: A61K31/195
Filed: 1989-12-05
Abstract: Abstract Glycine derivatives and preparation thereof There are disclosed are glycine derivative of the formula:                                   (I) (wherein R1 represents a substituted or unsubstituted phenyl group, R2 represents a carboxyl group which may be protected, Q represents a lower alkylene group and m represents 0 or 1) or a pharmacologically acceptable salt thereof and a process for preparing the same.
Patent CA-2007266-A1 (CA)
Title: "corner finishing member for drywall panels"
Inventor: YESIS FRANK
IPC: E04F21/16
Filed: 1990-01-05
Abstract: CORNER FINISHING MEMBER FOR DRYWALL PANELS            ABSTRACT OF THE DISCLOSURE           A  finishing member  for  the  corners  between drywall panels includes a rod which is cylindrical and has a diameter less than 1/4 inch.   Around the rod is wrapped a paper strip so that two side edges of the paper strip extend outwardly  from the rod.   Preferably the paper is wrapped around over an angle of the order of 270° so the paper strips lie at right angles.   The rod forms a bead along the corner with the paper strips lying against the outer surface of the drywall to which they are attached by the application of drywall mud.
Patent CA-2007412-A1 (CA)
IPC: H01L29/732
Filed: 1990-01-09
Abstract: A method of  fabricating  a  lateral  transistor  is provided,  including the steps of:  providing a body of semiconductor material including a device region of a first conductivity type; patterning the surface of the device region to define a first transistor region; filling the patterned portion of the device region surrounding the first transistor region with an insulating material to a height  generally equal  to  the  surface  of with  first transistor region;  removing portions of the insulating material so as to define a pair of trenches generally bounding opposite sides of the first transistor region; filling the  pair  of  trenches  with  doped  conductive material  of  opposite  conductivity  type  to  the  first transistor region; and annealing the semiconductor body whereby to form second and third transistor regions of opposite conductivity type to the first transistor region in the opposing sides of the first transistor region.
Patent CA-2008670-A1 (CA)
Title: Hollow fiber blood oxygenator
Inventor: JONES KENNETH A
IPC: B01D63/02
Filed: 1990-01-26
Abstract: ABSTRACT A hollow fiber blood oxygenator  (12)  is provided having an plurality of enclosed, coaxial heat exchanger coils (16), having a common header (46) to insure uniform temperature in the coils.  An enclosed fiber bundle (22) is concentrically positioned inside the heat exchanger coils to define a flow path around the coils and through the fiber bundle.  The heat exchanger coils and the outside of the fiber bundle are tapered to provide a close fit.  Gas manifolds (32, 40) direct gas flow to and from the hollow fibers.
Patent CA-2008818-A1 (CA)
Title: Trickle valve
Inventor: DANIELSEN ARVID M
IPC: B04C5/15
Filed: 1990-01-29
Abstract: An improved trickle valve is provided which includes a curved tubular body portion terminating at its bottom end with a valve seat. The trickle valve also includes a flapper plate which is pivotably mounted to cover the valve seat when the valve is in the closed position and which swings away from the valve seat when the valve is in the open position.      Importantly, the tubular body portion has a predetermined radius of curvature sufficient to increase, under conditions of use, the stability of the dipleg solids level over that of trickle valves having a straight run tubular body portion. Indeed, the radius of curvature of the tubular body portion preferably is in the range of from about 1 1/2 times to 2 1/2 times the diameter of the tubular body portion.
Patent CA-2009111-A1 (CA)
Title: Method and device for quantitative chromatography
Inventor: GEORGEVICH GRADIMIR G
IPC: G01N33/558
Filed: 1990-02-01
Abstract: METHOD AND DEVICE FOR QUANTITATIVE CHROMATOGRAPHY     ABSTRACT OF THE DISCLOSURE           An improved chromatographic device and method for quantitating the activity of an enzyme utilizes a bibulous test strip as the stationary phase, an aqueous solution as the mobile phase, and a chromophore as the indicator.  The enzyme activity is quantitated by transforming a substantially depletable amount of a chromogenic substrate from soluble chromogen to insoluble chromophore as the mobile phase advances, thereupon the insoluble chromophore becomes immobilized on the test strip to produce a column of color.  The length and/or the intensity of the column of color are related to the activity of the enzyme.  The present invention is useful for the direct determination of enzyme-analytes and for the indirect determination of analytes which can be coupled to an enzyme.
Patent CA-2009609-A1 (CA)
Title: Eimeria membrane associated protein immunogens
Inventor: GURNETT ANNE M
IPC: C07K16/00
Filed: 1990-02-08
Abstract: TITLE OF THE INVENTION EIMERIA MEMBRANE ASSOCIATED PROTEIN IMMUNOGENS            ABSTRACT OF THE DISCLOSURE         Novel Eimeria membrane associated proteins with immunogenic properties are identified, purified and characterized.  The cellular location of the membrane associated proteins is characterized by their partitioning properties in the detergent Triton X114 and by the presence on a subset of the proteins of a hydrophobic glycolipid anchor.  Antiserum raised against detergent phase proteins reacts specifically with the surface of Eimeria sporozoites.  The Eimeria proteins are capable of protecting poultry from coccidiosis.
Patent CA-2010839-A1 (CA)
Title: Coextrudable adhesives
Inventor: WONG CHUN S
IPC: C09J151/06
Filed: 1990-02-23
Abstract: ABSTRACT OF THE DISCLOSURE          A coextrudable adhesive composition formed from a polymer component and a catalytic agent is disclosed.  The polymer component is selected from grafted polymers formed by grafting polyolefins with an ethylenically unsaturated carboxylic acid or anhydride.  The catalytic agent is a monoalkyl phosphate, alkylamine, heterocyclic compound or aminocarboxylic acid.  The compositions show improved adhesion to polar substrates compared with the related compositions that do not contain the catalytic agent. The compositions may be used, for example, in the bonding of ethylene/vinyl alcohol polymers to polyolefins and polyamides.
Patent CA-2011937-A1 (CA)
Title: Consolidation of powder aluminum and aluminum alloys
Inventor: CHAN HING
IPC: B22F3/15
Filed: 1990-03-12
Abstract: CONSOLIDATION OF POWDER ALUMINUM       AND ALUMINUM ALLOYS               ABSTRACT OF THE DISCLOSURE          A  method of consolidating metal powers selected from the group consisting essentially of aluminum, aluminum alloys, and aluminum  metal matrix composites includes: pressing the powder into a [reform, and preheating the preform to elevated temperatures; providing a bed of flowable pressure transmitting particles; positioning the preform in such relation to the bed that the particles encompass the preform; and pressurizing the bed to compress the particles and cause pressure transmission via the particles to the preform, thereby to consolidate the body into desired shape Typically, the metal powder has surface oxide, and such pressurizing is carried out to break up, partially or fully, the surface oxide.
Patent CA-2013208-A1 (CA)
Inventor: BRYANT LYNN A
IPC: B29D30/72
Filed: 1990-03-28
Abstract: ABSTRACT        An   apparatus   and   technique   for  applying markings  or  decorations  to  the  sidewall  of  a cured tire.      A   thin   polyester   carrier   sheet  has  a thermoplastic  transfer stock  thereon.  A heated die is provided  having  thereon  the geometric configuration of the  desired  marking  or  decoration.  The heated die is urged  against  the  transfer  laminate  to  impinge  the transfer  stock  against  the sidewall of the cured tire.          The  heat  of  the  die effects a release of the transfer stock  from the carrier sheet in areas congruent with the indicia  carrier  by  the  die.    The  affinity  of  the transfer  stock for the tire is greater than its affinity for the carrier sheet and the transfer is thus made.
Patent CA-2014328-A1 (CA)
Inventor: ATRILL ALLEN I
IPC: H05K7/18
Filed: 1990-04-10
Abstract: A stamped sheet metal bracket mountable between a pair of wall studs is provided for supporting electric boxes thereupon.  The bracket includes a slotted central bridge on which the boxes are screwed, and teethed feet at opposite ends for pressing into the side of the studs.
Patent CA-2018379-A1 (CA)
Inventor: KLETECKA GEORGE
IPC: C07D251/70
Filed: 1990-06-06
Abstract: SOLVENTLESS PROCESS FOR PREPARING A TRI-SUBSTITUTED TRIAZINE                 ABSTRACT OF THE DISCLOSURE A process is taught for recovering a white reaction product of a cyanuric halide with an amine reactant (white being indicative of the product's high purity), in high yield. In the absence of a solvent for either reactant, the first step comprises reacting the cyanuric halide, as a finely divided solid, with a liquid amine which is to provide a saturated heterocyclic amine group, such as a polysubstituted piperazinone, piperazine, or piperidine as the substitutent for each of the three halogen atoms of the cyanuric halide used. This solventless process carried out under essentially anhydrous conditions, with a large molar excess of the amine reactant chosen, not only short-ens the long time required to make the desired tri-substi-tution in a conventional solvent process, but also obviat-es using a pressurized reactor. Since (i) the reaction temperature is relatively low, (ii) there is no solvent, and (iii) the amine reactants are relatively high-boiling, and the reaction occurs in the liquid phase, there is no build-up of pressure. Fortuitously, the appropriate amount of alkanol and concentrated aqueous alkali provides a partition coefficient such that salt formed by neutraliza-tion of the excess amine hydrohalide is effectively pre-cipitated nearly quantiatively. In addition to providing "easy" processing conditions, the solventless reaction in our process provides higher yields than can be obtained, under comparable conditions, with the 'solvent process'; a lower by-product 'make' because of the low temperature and substantially atmospheric pressure used; and, the batch reaction is completed in less than 12 hr.
Patent CA-2019481-A1 (CA)
Title: Gellan gum sizing
Inventor: WINSTON PHILIP E JR
IPC: C08L1/00
Filed: 1990-06-21
Abstract: Surface sizes comprising 1) gellan gum and 2) one or more film-forming polymers such as chemically modified starch, cellulose derivatives, and polyvinyl alcohol are described. The compositions exhibit enhanced film-forming properties.
Patent CA-2020743-A1 (CA)
Inventor: SCHLUETER WERNER
IPC: E04F19/02
Filed: 1990-07-09
Abstract: A device for forming a transition bridge between two adjacent floor coverings of different heights is proposed, in which an end shank is molded onto an attachment shank to be installed under the floor covering of greater height, at an approximately right angle.  This end shank is connected with a transition shank which is angled down from the horizontal at an angle of 20° - 45° and supports itself.  This device is a single-piece unitary construction with an attachment shank provided with passages, which are preferably less than 1.5 mm thick, and with a transition shank molded onto one side of the end shank.  Shank has a contact section for the adjacent floor covering of lesser height, at its outer end.
Patent CA-2024029-A1 (CA)
Title: Polyarylate and method for preparing the same
Inventor: MATSUMOTO SHIGEMI
IPC: C08G63/79
Filed: 1990-08-27
Abstract: ABSTRACT A polyarylate having an acid chloride value of from 150 to 1,000 (10-6 eq./g) and a weight average molecular weight of from 3,000 to 100,000 as converted to polystyrene.
Patent CA-2025269-A1 (CA)
Title: Polar aprotic catalysts for formation of fluorosilicone fluids
Inventor: EVANS EDWIN R
IPC: C08G77/24
Filed: 1990-09-13
Abstract: Docket No.:    60SI-1275 ABSTRACT OF THE DISCLOSURE          There is provided a silicone composition comprising:            (A)  A  silanol  endstopped  fluid  represented  by  the general formula:       wherein R is selected from the class consisting of monovalent  hydrocarbon  radicals  and  halogenated monovalent  hydrocarbon  radicals  and  "x"  is  from about 3 to about 10;   (8)  a catalyst comprising an aprotic solvent; and (C)  water.
Patent CA-2025497-A1 (CA)
Inventor: SUGIMOTO MASAHARU
IPC: G11B33/08
Filed: 1990-09-17
Abstract: A magnetic disk storage apparatus comprising a rotary actuator which prevents head positioning error resulting from vibration and impact is described.  Since head positioning error is generated when the enclosure makes a rotating movement due to translational vibration input due to vibration, a vibration proof mechanism consisting of a several vibration proof supporting members is provided between the enclosure and frame.  The vibration proof supporting members are disposed so that the linear moment around the center of gravity of the enclosure is balanced against translational external force applied to the enclosure.
Patent CA-2027200-A1 (CA)
Inventor: WHITE A LEON
IPC: B60N3/04
Filed: 1990-10-09
Abstract: Abstract of the Disclosure A floor covering  or floor mat is disclosed for use with an automotive vehicle having a floor and control pedals positioned  at  the  front of  the floor.   The floor  mat includes a plurality of steps which extend laterally across the floor  of the vehicle rearwardly  of the vehicle control pedals.   The steps decrease  in height rearwardly from the control pedals by a preset  depth and each step has a preset width  which  extends  longitudinally  with respect  to  the vehicle.   Both  the preset depth and  preset width  of the steps are  selected so that,  with the operator's  shoe heel positioned on  one step and the sole  in engagement with one control  pedal, a  back  of the  operator's  shoe is  spaced upwardly from the step rearwardly adjacent the step on which the operator's heel is positioned to protect the back of the shoe from scuffing.
Patent CA-2027617-A1 (CA)
Title: Packaging bag for insertion into a publication
Inventor: HUDETZ MICHAEL L
IPC: B42D1/00
Filed: 1990-10-15
Abstract: ABSTRACT      A packaging bag is provided which is particularly adapted for insertion into a publication which is folded in its final form, the packaging bag comprising two sealed envelopes attached to each other along one margin of said envelopes and separated from each other by a fastening area.   The packaging bag may be made by placing insert material  inside  a tube,  the  tube  then  being  sealed widthwise periodically along its length to form a plurality of compartments which are separated from each other by at least one seal.   Subsequently the tube is cut widthwise periodically along its length so that the tube has two to four compartments between adjacent cuts.
Patent CA-2029509-A1 (CA)
Inventor: GREENOUGH RONALD E
IPC: C07C43/11
Filed: 1990-11-07
Abstract: A process for preparing an etherified polyoxyalkylene derivative of the formula (See Fig. I) wherein R1 and R4 are identical or different and are each independently C1-C20 alkyl, C3-C5 alkenyl, C6-C20 aryl, C6-C20 alkyl aryl, C6-C20 cycloalkyl, and mixtures thereof, R2 and R3 are identical or different and independent of each other are H, CH3, CH3CH2, and mixtures thereof, m, m' and n are identical or different and are each greater than or equal to zero, with the proviso that m + m' + n is from 3 to 300; by reacting a polyoxyalkylene compound of the formula
Patent CA-2032435-A1 (CA)
Inventor: ZURAWSKI JOHN H
IPC: G06F7/508
Filed: 1990-12-17
Abstract: ABSTRACT    A high performance adder is provided including a predicted carry look coupled between a lower order adder and a higher order adder of the high performance adder.  The predicted carry look ahead provides as an input to the carry input of the higher order adder a prediction of a carry bit produced by the adding of lower order bits of two addends by the lower order adder.  By this arrangement, the highest order adder can operate on the highest order bits of two addends with a predicted carry and without having to wait for the results of the carries that occur in the lower order bits.
Patent CA-2035675-A1 (CA)
Title: Sio2-flatting agent, process for its production and its use
Inventor: LUERS GEORG
IPC: C09D7/45
Filed: 1991-02-05
Abstract: ABSTRACT            A universally applicable SiO2-flatting agent is described, which consists of SiO2, 1 to 25 % by weight polyol and optionally 1 to 25 % by weight wax. The novel flatting agent is, even after lengthy  storage,   especially  at  pressure,   still   easily dispersible, does not lead to the formation of a hard sediment with non-thixotropic paints and lacquers, and has practically no negative effect on the thixotropic behaviour of paints and lacquers based on thixotropic polyamide-modified alkyd resins. The SiO2, polyol and wax can be brought together in a variety of ways, e.g. during the micronization of the SiO2 in a jet-mill or mechanical mill by adding polyol and wax at the same time, by spray-drying a suspension of SiO2 in an aqueous polyol solution or even before drying by adding polyol during washing or an earlier production step.  It is also possible to spray-dry a suspension of SiO2, wax emulsion and polyol.
Patent CA-2037225-A1 (CA)
Title: Use of a ternary association for the preparation of a cosmetic composition, and the cosmetic composition obtained
Inventor: FARER ALAN M
IPC: A61K8/44
Filed: 1991-02-27
Abstract: In the preparation of a cosmetic composition in the form of compacted powder, use of 1 to 55 % by weight, relative to the total weight of the composition, of a combination of three constituents promoting the homogenisation of the ingredients of the composition, namely: 
 
  - x % by weight of hollow microspheres made of thermoplastic synthetic material, which have a density lower than 0.1 g/cm<3> and which are smaller than 30  mu m in size, 
  - y % by weight of particles of hexagonal boron nitride, 
  - z % by weight of particles of N-acyllysine, 
 x, y and z being numbers which can vary within the following ranges, respectively: 
 
  x: 0.02-30 
  y: 0.2-90 
  z: 8 to 99.78 
 it being understood that x + y + z = 100; and cosmetic composition thus obtained.
Patent CA-2038633-A1 (CA)
Inventor: TSUCHIYA YOSHIMI
IPC: C07D521/00
Filed: 1991-03-19
Abstract: Abstract of the Disclosure Substituted amine derivatives represented by the general formula      [I]   wherein Q is -C-D-E-F-G-M- or -N-H-I-J-K-L- [C, D, E, F, G, H, I, J, K and L are each O, S, a carbonyl group, -CHRa-, -Rb= or -NRc- (Ra, Rb and Rc are each H or a lower alkyl group), M and N are each an aromatic ring of 5-6 members optionally having a halogen, OH, LN, a lower alkyl group or a lower alkoxy group, provided that L is not O, S, or -NRc-]; R is a heterocyclic ring of 5-6 members; R1 is H, a lower alkyl group, a lower haloalkyl group, a lower alkenyl group, a lower alkynyl group or a cycloalkyl group; R2, R3, R4, R5 R6 and R7 are each H, a halogen or a lower alkyl group or two of them denote a single bond; R8 and R9 are each F, CF3 or a lower alkyl group or are a cycloalkane in combination thereof, and R10 is H, F, CF3 an acetoxy group, a lower alkyl group or a lower alkoxy group. These compounds inhibit biosynthesis of cholesterol in mammals by inhibiting their squalene epoxidase, and thereby lower their blood cholesterol values.  Therefore, these compounds are expected to be effective as an agent for treatment and prophylaxis of diseases caused by excess of cholesterol, for example, obesity, hyperlipemia and arteriosclerosis and heart and encephalic diseases accompanying them.
Patent CA-2039001-A1 (CA)
Title: Liquid pesticide concentrates
Inventor: DEZ GUY
IPC: B65D65/46
Filed: 1991-03-25
Abstract: There are disclosed active ingredient concentrates in packaged form, which comprise a water-soluble bag and a liquid, non-aqueous pesticide concentrate.
Patent CA-2039114-A1 (CA)
Inventor: RAULT SYLVAIN
IPC: A61P9/10
Filed: 1991-03-26
Abstract: Nouveaux composés de la 4H-pyrrolo-¢1,2-a! thiéno¢2,3-f! diazépine¢1,4!, utilisables comme médicament et répondant à la formule générale (I) : (I) dans laquelle : - R1, R2, R3 et R4 ont la même signification que dans les revendications. Ces composés ainsi que leurs sels physiologiquement tolérables peuvent être utilisés en thérapeutique, notamment dans le traitement des troubles liés à l'hypoxémie et à certains désordres métaboliques.
Patent CA-2039307-A1 (CA)
Title: Animal feed supplement
Inventor: HUMPHREY ROBERT E
IPC: A61D7/00
Filed: 1991-03-27
Abstract: ABSTRACT           A  process  of  administering  to  cattle  an  amount  of biologically assimilable chromium compound effective to reduce the incidence or severity of stress-related disorders and to obtain weight gain and improved feed efficiency and a food supplement is disclosed.
Patent CA-2040654-A1 (CA)
Inventor: MIX RENARD E
IPC: H01M50/466
Filed: 1991-04-17
Abstract: METHOD OF ENVELOPING BATTERY PLATES            Abstract of the Disclosure Method of enveloping a battery plate in a heat-fusible fibrous separator material (e.g., fibrous glass mat ) including the step of tacking the mat to itself by means of an electric arc.
Patent CA-2042924-A1 (CA)
Title: Paint spray booth with plenum means of reduced cross section and method of operating the same
Inventor: TELCHUK STEVEN E
IPC: B05B15/12
Filed: 1991-05-21
Abstract: PAINT SPRAY BOOTH WITH PLENUM MEANS OF REDUCED CROSS SECTION AND    METHOD OF OPERATING THE SAME            Abstract of the Disclosure A paint spray booth apparatus and method, particularly for automated paint applications, is illustrated and disclosed.  The booth has a spray painting chamber and a plenum thereabove.  Unlike prior art booths, the plenum of the present invention provides air flow only where needed to control overspray, and generally the plenum is only 60%, or less, in width or cross-section than the prior art, full ceiling width plenums.  In carrying out the method of the present invention air is supplied from the plenum to the spray painting chamber only where needed to control overspray so that consequently the quantity of air utilized is substantially less than in prior art booths with air flow from their full width plenums.  In certain booths where painting occurs on both sides of the booth, it is advantageous to provide the plenum in the form of two or dual plenums, each offset from the center of the booth.