baber/WOPTO huggingface dataset:
Patent CA-2028831-A1 (CA)
Inventor: GROSIUS PAUL
IPC: C07C57/66
Filed: 1990-01-18
Abstract: Acryloyl chloride is obtained by the reaction of acrylic acid on phenylchloroform, in the presence of at least one Lewis acid as catalyst and at least one polymerisation inhibiting agent. According to the invention, the catalyst is chosen among zinc oxide and zirconium tetrchloride and the reaction is brought to a temperature of at least 105 DEG C. In a preferred embodiment, the acrylic acid is added to the medium consisting of phenylchloroform, the catalyst and the polymerization inhibitor, and brought to a temperature of at least 105 DEG C, whereby the acryloyl chloride formed distils as soon as the acrylic acid is introduced. Acryloyl chloride is a highly reactive synthesis intermediate.
Patent CA-2028893-A1 (CA)
Inventor: KELLEY JAMES L
IPC: A61P25/18
Filed: 1990-10-30
Abstract: Novel (2S,3S,5R) morpholinols of formula (I) <CHEM> together with the (+-)-(2R*,3R*,5S*) racemates thereof, and their salts,  wherein X is hydrogen, alkyl of 1 to 6 carbon atoms, cycloalkyl of 3 to 6 carbon atoms or a group -CH2-X<1> where X<1> is cycloalkyl of 3 to 6 carbon atoms. The compounds have a variety of uses in human medicine, in particular in the treatment of mental disorders such as depression.
Patent CA-2030735-A1 (CA)
Title: Thermoplastic polyurethanes with improved flow
Inventor: HEINZ HANS-DETLEF
IPC: C08L75/04
Filed: 1990-11-23
Abstract: Mo3492 LeA 27,149 THERMOPLASTIC POLYURETHANES WITH IMPROVED FLOW                  ABSTRACT OF THE DISCLOSURE    The present invention is directed to thermoplastic molding compounds which comprise mixtures of thermoplastic polyurethanes and polyphenols. The molding compounds have greatly improved flowability.            Mo3492
Patent CA-2034244-A1 (CA)
Title: Detergent compositions and process for preparing them
Inventor: EVANS DAVID G
IPC: C11D11/04
Filed: 1991-01-16
Abstract: A batch process for the preparation of detergent powder of high bulk density comprises neutralising a detergent acid (anionic surfactant precursor), eg linear alkylbenzene sulphonic acid, with a particulate solid water-soluble alkaline inorganic material, for example, sodium carbonate (optionally plus other alkaline materials and/or detergency builders, for example, alkali metal aluminosilicate), in a high-speed mixer/granulator, eg Fukae mixer, and granulating the product in the mixer.      The reaction mixture remains particulate throughout the process, without the need to keep the temperature during the neutralisation step to 55°C or below, and a high-quality high-bulk-density particulate product is obtained.
Patent CA-2035363-A1 (CA)
Inventor: DESBIENDRAS DANIEL
IPC: C23G5/028
Filed: 1991-01-31
Abstract: Pour remplacer les compositions de nettoyage à base de 1,1,2-trichloro-1,2,2-trifluoroéthane (F113), l'invention propose une composition comprenant en poids 55 à 80% de 1,1-dichloro-1-fluoroéthane (F141b) et 45 à 20% de formiate de méthyle. Ces deux composes forment un azéotrope positif (Eb. = 28,4.degree.C à la pression normale). La composition, éventuellement stabilisée, peut être utilisée pour le nettoyage de surfaces solides, en particulier pour le défluxage des circuits imprimés et pour le dégraissage de pièces mécaniques.
Patent CA-2037136-A1 (CA)
Title: Sulphonylated pyrimidinecarboxamides
Inventor: KIRSTEN ROLF
IPC: C07D241/24
Filed: 1991-02-26
Abstract: ABSTRACT OF THE DISCLOSURE        Herbicidal sulphonylated pyrimidinecarboxamides of the formula          (I) in which R  represents in each case optionally substituted aryl, aralkyl or heteroaryl, X  represents hydrogen, halogen, alkyl, halogeno-alkyl, alkoxyalkyl, alkoxy or halogenoalkoxy, Y  represents halogen, alkyl, halogenoalkyl, alkoxy-alkyl, alkoxy or halogenoalkoxy and Z  represents hydrogen, halogen, alkyl, halogeno-alkyl, alkoxy or halogenoalkoxy, and salts thereof.                     *     *     *     Le A 27 532
Patent CA-2037142-A1 (CA)
Inventor: HSIEH HUNG-CHENG
IPC: G06F7/506
Filed: 1991-02-26
Abstract: Programmable logic devices which include multiple blocks of combinatorial function generators and storage elements, and which are interconnected by a programmable interconnect structure are used, among other things for performing arithmetic functions which use logic for generating the carry function.  When a large number of bits is to be processed, the carry function typically causes significant delay or requires significant additional components to achieve a result at high speed.  The present invention provides dedicated hardware within the logic blocks for performing the carry function quickly and with a minimum number of components.  The invention takes advantage of the fact that a carry signal to be added to two bits can be propagated to the next more significant bit when the two binary bits to be added are unequal, and that one of the bits can serve as the carry signal when the bits are equal.
Patent CA-2037393-A1 (CA)
Inventor: PAGEAUD MICHEL
IPC: H01G4/015
Filed: 1991-03-01
Abstract: ABSTRACT OF THE DISCLOSURE    A stacked or  coiled type of metallized  flexible dielectric  film  capacitor  is  made  by  the   direct superimposition  of  at  least  two  metallized  films, laterally offset with respect to  one another so as  to form  alternating  even-order  and  odd-order layers, designed to  be connected  to  one another  by  lateral electrical connections. One of  the faces of the  films is  entirely  metallized  and   the  gap  between   two same-order layers is filled with an insulator  material itself covered by the lateral electrical connections.
Patent CA-2037671-A1 (CA)
Inventor: LAARMANN WILLI
IPC: B29C48/12
Filed: 1991-03-06
Abstract: A marbleized thermoplastic resin strand is made from a matrix resin and an inlay resin in an apparatus having a die forming a passage extending along an axis and having an upstream inlet end and a downstream outlet end and an extruder for injecting the matrix resin in hot liquefied condition into the passage at the upstream end thereof such that the resin emerges from the downstream end. An inlay nozzle opens into the passage between its ends and extends through the die along a nozzle axis not parallel to the passage axis. The inlay resin is fed in hot liquefied condition through the nozzle into the passage such that the inlay resin mixes with the matrix resin. The inlay nozzle is rotated substantially continuously about its nozzle axis so long as the extruder is operating, Thus the patterning of the inlay resin in the matrix resin is a function of the rotation speed of the inlay nozzle.
Patent CA-2037903-A1 (CA)
Title: Polymer compositions for the production of articles of biodegradable plastics material and method for their preparation
Inventor: BASTIOLI GATIA
IPC: C08L1/00
Filed: 1990-08-01
Abstract: Polymer compositions useful for the production of articles of biodegradable plastics material with improved biodegradability include destructed starch and a polymer selected from the group consisting of ethylene-vinyl alcohol, polyvinyl alcohol and mixtures thereof wherein at least a portion of the said polymer is modified by the substitution of from 0.1 to 5 molar % of the functional alcohol groups in the polymer chain by X groups in which X is an oxo or an alkyl carbonyl group in which the alkyl group contains from 1 to 4 carbon atoms.
Patent CA-2039392-A1 (CA)
Inventor: GROSSMAN DAVID G
IPC: A61C13/09
Filed: 1991-03-28
Abstract: A glazing device, and a method for using such device to apply a surface glaze to a dental construct, are disclosed. The device comprises glazing material associated with a shrinkable, hollow carrier. The method comprises associating glazing material with a hollow carrier composed of a shrinkable and removable material, assembling the construct and carrier with the construct positioned within the carrier, shrinking the carrier onto the construct, removing the carrier, and maturing the material to a glaze. The device and method find particular application in applying coloration, either uniformly or in a pattern, to a dental construct.
Patent CA-2042864-A1 (CA)
Inventor: ISHIHARA KOJI
IPC: F17C13/02
Filed: 1991-05-17
Abstract: ABSTRACT     Disclosed is a method for detecting a defect in an LNG tank, in which: a lattice sampling pipe arrangement is  provided  in   a  thermal  insulation  section  of a containment  system of  a  membrane   system  LNG  tank constituted by the  thermal  insulation section  and an inter barrier section with a secondary barrier, which is an object to be detected, disposed as a boundary between the thermal   insulation section and the inter barrier section,  the  lattice  sampling pipe arrangement  having holes formed at predetermined  intervals and disposed at lattice points thereof;  sampling pipes of  the lattice sampling pipe arrangement are connected to a single gas densimeter  individually  through  respective  valves;  a tracer gas  is led  into the inter  barrier section so that the density  of the tracer gas leaking  through the object   to  be  detected   is   measured   by  the  gas densimeter  with  respective  to  each  of  the  sampling pipes;  total  data  is  prepared  by using  a processing mechanism on the basis  of the  result  of measurement of  density obtained  from each of the sampling pipes; and a leakage  portion in the object to  be detected is identified and detected by estimating the gas density at each of the lattice points  on the basis of the total data,
Patent CA-2044861-A1 (CA)
Inventor: GOSIEWSKI DONALD E
IPC: C08L51/04
Filed: 1991-06-18
Abstract: Adhesive compositions are made from methacrylate ester monomers, elastomeric polymers having a Tg below -25°C and which are soluble in the monomers, core-shell polymers which swell in the monomers but do not dissolve therein, and free radical producing catalysts. These adhesive compositions when used in bonded assemblies exhibit a combination of high adhesive bond impact strength and high bulk tensile elongation.
Patent CA-2045190-A1 (CA)
Title: Process for the synthesis of .alpha.-hydroxy-esters
Inventor: MESSINA GIUSEPPE
IPC: C07C69/675
Filed: 1991-06-21
Abstract: "PROCESS FOR THE SYNTHESIS OF ?-HYDROXYESTERS"                        Abstract A  new process for the synthesis of the ?-hydroxy-esters  described  by formula (1),  by starting from the corresponding  ?-hydroxy-nitriles  is  disclosed,  which comprises the following reaction steps: 1.   formation   of the    2-hydroxy-imino-methyl-ester hydrochloride  by  means  of  the  reaction  of  the hydroxy-nitrile   with  anhydrous  methanol  in  the presence of hydrochloric acid, 2.   reaction of said 2-hydroxy-imino ester hydrochloride with water.
Patent CA-2046796-A1 (CA)
Title: Combustor dome assembly
Inventor: HOWELL STEPHEN J
IPC: F23R3/28
Filed: 1991-07-11
Abstract: A gas turbine engine combustor dome assembly includes a dome having a dome eyelet, a mounting ring fixedly joined to the dame around the eyelet, a baffle fixedly joined to the mounting ring, and a carburetor fixedly joined to the mounting ring. The carburetor is joined to the mounting ring for providing a fuel/air mixture through the mounting ring with a predetermined relationship to the baffle for controlling pattern factor. The mounting ring allows for assembly with reduced stackup clearances, and easy disassembly for servicing.
Patent CA-2050947-A1 (CA)
Title: Electrophotographic, peel-apart color proofing system
Inventor: PLATZER STEPHAN J W
IPC: G03F7/028
Filed: 1991-09-09
Abstract: Abstract of the Disclosure This invention relates to an electrophotographic, peel-apart color proofing film which, upon exposure to an actinic radiation source through a screened image, can accurately reproduce an image.  The construction is useful as a color proofing film which can be employed to accurately predict the image quality from a lithographic printing process.  The image is produced by forming a composite of a receiver base, adhesive layer, photosensitive diazo, diazide or photopolymerizable layer, electrically conducting layer and photoconductor layer.  Upon charging, laser exposure, toning, fixing and actinic radiation exposure, an image appears on the receiver base after dry peel apart development.
Patent CA-2050981-A1 (CA)
Title: Three phase centrifugal separator
Inventor: GINGRAS EARL
IPC: B04B1/02
Filed: 1991-09-09
Abstract: ABSTRACT OF THE DISCLOSURE A three phase centrifugal separator for separating the components of a fluid mixture of oil,  water and gas, consisting of a cylindrical drum rotatably mounted within a  pressure  vessel. Two  liquid  phase  holding  tanks connected to the pressure vessel are also maintained under pressure.  The drum has an initial separation chamber which separates gaseous phase fluids from liquid phase fluids. Water is forced to the outer circumference of the drum by centrifugal  force  and  forms  a water  zone within  the confines of a first and a second annular weirs.  The first annular weir is lower than the second annular weir such that water is retained in the water zone until the level of the  first  annular  weir  is  attained,  thereafter  any additional water entering the water zone results in a migration of water between the drum and the first annular weir to a water phase outlet.   Oil is forced into a water/oil interface on top of the water zone by centrifugal force.   An oil passage is provided between the second annular weir and the second end of the drum.  The second annular weir serves as a spillway whereby oil passes over the second annular weir to the oil passage leading to an oil phase outlet.  Peripheral gas passages are provided at the second end of the drum.  Gas flows from the primary separation chamber of the drum via the gas passages to a gas phase outlet.
Patent CA-2053433-A1 (CA)
Inventor: GARVEY MICHAEL J
IPC: C11D17/00
Filed: 1991-10-15
Abstract: A product for treating fabrics in the washing machine is in the form of a tablet of compressed particulate bleaching composition comprising a persalt, preferably sodium percarbonate;  a bleach activator having an observed pseudo-first order perhydrolysis rate constant (Kobs) of from 1.5 x 10-4 to 350 x 10-4 sec-1, for example, tetraacetylethylenediamine, glycerol triacetate, sodium benzoyloxy benzene sulphonate or 1-O-octanoyl-2,3-4,6-tetra-O-acetyl glucose;  and optionally detergent ingredients.
Patent CA-2058831-A1 (CA)
Inventor: DURAND ALAIN JEAN-MARIE
IPC: A61M25/00
Filed: 1992-01-06
Abstract: "Cathéter multilumière intravasculaire, susceptible d'être implanté avec "tunnellisation" Monsieur Alain, Jean-Marie DURAND Ce cathéter intravasculaire comporte une tubulure multilumière destinée à la perfusion de médicaments incompatibles entre eux à l'état pur ou à la réalisation de plusieurs fonctions différentes. Dans le but de permettre l'implantation de ce cathéter avec réalisation d'une "tunnellisation", cette tubulure multilumière (1) constitue seulement la partie distale de ce cathéter. Celui-ci comprend en outre : - des tubes distincts (2a, 2b) en nombre égal aux lumières de la première tubulure et qui s'étendent en amont de celle-ci pour former la partie intermédiaire (2) du cathéter, - une tubulure monolumière (3) constituant l'extrémité proximale de l'ensemble et qui porte en bout une aiguille rigide (4) apte à permettre la réalisation de la tunnellisation, - deux raccords (5 et 6) assurant respectivement la jonction de chaque lumière (1a, 1b) de la tubulure multilumière (1) avec un des tubes distincts (2a ou 2b) de la partie intermédiaire (2), et le raccordement de l'extrémité opposée de ces tubes (2a, 2b) avec l'extrémité correspondante de la tubulure monolumière (3), chacun de ces raccords étant constitué par un corps en forme d'olive effilée, surmoulé en matière plastique sur les extrémités des parties à réunir. (voir figure 1)
Patent CA-2059844-A1 (CA)
Title: I.v. infusion or blood collection assembly with automatic safety feature
Inventor: FAYNGOLD ZEVULEN
IPC: A61M25/06
Filed: 1992-01-22
Abstract: An  intravenous  infusion  set  and/or  blood collection  assembly  is  provided  with  a  safety feature for covering the used needle with a simple movement.  The assembly is comprised of a structure which   is   of   very  economical   and   simple construction, which allows for manual mounting, if required, but which may be formed and handled on a mass  production  line  for  rapid  production, as required.  The safety feature is a two-part shield which  when  placed  in  cooperating  relationship, allows  accommodation of  a conventional unmodified blood  collection  needle  and  body  including  the usual handling wings.  After use, the body with the needle are pulled rearwardly so that the wings do not need to be touched but moved through slots past an  abutment  into  positive  locking  slots  which prevent the body, wings and needle from moving out of the shield thereafter.  The two-part shield may be connected by a living hinge and is comprised of a semi-rigid thermoplastic material which gives for passage of the needle body and wings from the use position to the locked position.
Patent CA-2061161-A1 (CA)
Inventor: LIMA WILLIAM
IPC: B65D17/52
Filed: 1992-02-13
Abstract: Drums liners and methods used in the handling of hazardous materials and liquids comprising the use of disposable drum liners having a fitting allowing communication with the interior of the liner for securing the liner to a conventional drum bung hole, said fitting to be used to evacuate and collapse the liner, and a reseal plug attached to the fitting to seal the collapsed liner, said reseal plug having means to accept a plunger. The lid of the drum is removed and the sealed liner is taken from the drum using the plunger attached to the reseal plug. The liner is then placed into a disposal drum made of the same material as the liner and compressed. Once the disposal drum contains a sufficient number of compressed liners, it is removed for incineration or other safe disposal.
Patent CA-2062432-A1 (CA)
Inventor: HAYASHI HIROSHI
IPC: G06K13/063
Filed: 1992-03-05
Abstract: An information recording and reproducing apparatus includes a card carriage.  The card carriage is provided in the opposite sides thereof with card holding plates, respectively.  The card holding plates have each a groove into which a corresponding lateral edge of an optical card is inserted.  At least one of the card holding plates is supported in a cantilever fashion on a card carriage through a flexible portion thereof.  The upper surface of the card carriage has an upper ridge formed at a portion close to one lateral edge of the optical card.  The upper surface of the card carriage oppositely faces the rear face of the optical card.  The inner edge portion of the one card holding plate is provided at a position away from the outer ridge at a predetermined distance with an inner ridge.
Patent CA-2063111-A1 (CA)
Title: Rotating cross wound eddy current head for inspecting tubing
Inventor: GRIFFITH JOHN C
IPC: G01N27/90
Filed: 1992-03-16
Abstract: ABSTRACT OF THE DISCLOSURE    A rotating cross wound eddy current head for inspecting tubing.  A main body portion has a coil mounting arm pivotally mounted in a bore on the main body portion that allows for radial movement of the arm.  A cross wound eddy current coil is mounted adjacent the opposite end of the arm from the pivotal mounting point.  Opposing magnets mounted in the main body portion and coil mounting arm bias the arm and coil radially outward so that the coil tracks the surface of the tube being inspected and only reads one point on the tube.   A helical  inspection path  is provided by moving  the head axially  through the tube  while simultaneously rotating the head.
Patent CA-2064235-A1 (CA)
Title: Hydrotherapy device with underwater treadmill
Inventor: WEISZ STEFANO
IPC: A63B22/02
Filed: 1990-07-12
Abstract: A B S T R A C T     Hydrotherapic rehabilitative device characterized in that it comprises an individual rehabilitation horizontal tub (6), whose bottom is partially formed by a vertically movable treadmill platform  (9)  and whose walls  extend  downwardly beyond said bottom to delimit a space (7) containing a pool of water and receiving a patient standing on said treadmill platform, when lowered.
Patent CA-2064581-A1 (CA)
Inventor: PEARSON IAN D
IPC: H04J14/08
Filed: 1990-07-23
Abstract: In a system for transmitting data cells from a transmitter (1) to a receiver (2,3) each cell comprises a fixed format head containing address information and a free format time slice of predetermined duration. The cells may be transmitted on an or cat network (4) in which case the cells are routed by an optical switch (5) which reads the header and is transparent to the f: format time slice. Second level cells are formed comprising a second level header and a time slice filled with a number of first ~el cells.
Patent CA-2064922-A1 (CA)
Title: Tapering sidewalls of via holes
Inventor: JOLLY GURVINDER
IPC: H01L21/311
Filed: 1992-04-02
Abstract: A method of tapering side walls of via holes and a tapered via hole structure for an integrated circuit is provided.  Via holes having steep sidewalls are provided in an insulating layer overlying a conductive layer on a substrate, with an underlying conductive layer exposed at a bottom of each via hole.  A protective layer is provided over the conductive layer in each via hole, and over the sidewalls.  The via holes are then tapered by argon sputter etching to remove the protective layer and part of the insulating layer from the sidewall and around the peripheral edge of each via hole, thereby smoothly tapering the sidewall and providing a via hole increasing continuously in diameter from the bottom to the upper peripheral edge of the via hole.  Via holes of multiple depths are simultaneously and smoothly tapered to the bottom of the via holes Any sputtered debris remaining in the via holes after the sputter etch step is removed by reactive ion etching to clean the conductive layer exposed in each via hole and allow for formation of reliable electrical contacts.
Patent CA-2066719-A1 (CA)
Inventor: AGAR JORAM
IPC: G01N22/00
Filed: 1990-10-04
Abstract: Dispositif pour mesurer la concentration de deux substances en émettant des ondes électromagnétiques. Le dispositif utilise au moins un élément émetteur pour émettre un signal et au moins deux éléments récepteurs pour recevoir un signal provenant du ou des éléments émetteurs précités et produire un premier et un deuxième signaux de sortie. La présente invention utilise en outre un dispositif récepteur pour recevoir le premier et le deuxième signaux de sortie provenant desdits éléments récepteurs de sorte que la différence ou le rapport entre les deux signaux serve à déterminer la concentration.
Patent CA-2070722-A1 (CA)
Title: Multox: extraction of metal values from metal bearing ores
Inventor: HALLINAN MARK S
IPC: C22B11/08
Filed: 1992-06-08
Abstract: ABSTRACT            The invention relates to the extraction of metal values from metal bearing ores.  More specifically, the invention comprises, in a process 10 for extracting metal values from metal bearing ores, a method of enhancing metal value recovery from the ore. The method comprises  introducing, upstream of a metal recovery section 26, a gaseous agent by means of arrangements 30.  The gaseous agent is capable of promoting recovery of metal values from the ore.  The gaseous agent introduction is into at least one of the pipelines 20, 24, 28 conveying ore slurry or process water for use in slurrying ore or for slurry make-up. The gaseous agent introduction is effected at a plurality of spaced points or zones, with the proviso that when at least one of the points or zones is in a slurry pipeline between a hydrocyclone separator and a thickener in the leaching stage, or in a water return pipeline from such a thickener to a mill, then at least one further gaseous agent introduction point or zone is provided in a pipeline downstream of such thickener.