baber/WOPTO huggingface dataset:
Patent CA-2010159-A1 (CA)
Title: Cyanation of haloaromatics utilizing catalysts generated in situ starting with nic1 or nic1 6h 0
Inventor: MAUL JAMES J
IPC: C07C253/14
Filed: 1990-02-15
Abstract: CYANATION OF HALOAROMATICS UTILIZING CATALYSTS GENERATED IN SITU STARTING       WITH NiCl2 Or NiCl2?6H2O          Abstract of the Disclosure Aromatic halide is converted to aromatic nitrile, e.g., p-chlorobenzotrifluoride is converted to 4-(trifluoromethyl)benzonitrile, utilizing Ni(P?3)3 as a catalyst where said catalyst is formed starting with NiCl2 or NiCl2?6H2O where formation of said catalyst starting with NiCl2 or NiCl2?6H2O and conversion of halide to nitrile are carried out in a single reactor vessel.  The method comprises the steps of (a) forming catalyst by steps comprising (i) forming essentially dry Ni(P?3)Cl2 in situ in said reactor vessel starting with NiCl2 or NiCl2-6H2O, (ii) reacting said essentially dry Ni(P?3)2Cl2 with P?3 in the presence of a reducing metal in C2-C5 alcohol or aprotic polar reaction solvent in said reactor vessel to produce Ni(P?3)3 catalyst therein, and (b) adding said halide into said reactor vessel to form a complex in C2-C5 alcohol or aprotic polar reaction solvent from said halide and said catalyst and adding alkali metal cyanide to convert halogen to CN and thereby produce nitrile.  When anhydrous NiCl2 is a starting material, steps (a)(i) and (a)(ii) are preferably carried out as a single step where anhydrous NiCl2 and at least three equivalents of P?3 are added to C2-C5 alcohol or aprotic polar solvent followed by addition of reducing metal powder and reaction is carried out to convert NiCl2 to Ni(P ?)3 with intermediate formation of Ni(P ?3)2Cl2.  When NiCl2-6H2O is a starting material, essentially dry Ni(P?3)2Cl2 is formed in step (a)(i) by forming an admixture thereof with azeotrope-forming liquid (e.g., anhydrous C2-C5 alcohol or aprotic polar solvent or toluene) and heating to distill off water and forming essentially dry NiCl2 which is converted to essentially dry Ni(P?3)2Cl2 or the NiCl2- 6H2O is reacted with P?3 to form wet Ni(P?3)2Cl2 which is dried by forming an azeotropic mixture and distilling to remove water or by heating or the NiCl2?6H2O is made essentially dry by heating with or without P?3 present in the absence of reaction solvent to flash off water and form essentially dry NiCl2 which is reacted with P?3.  The preferred C2-C5 alcohol is t-butanol which minimizes formation of hydrodehalogenation side-product in step (b) compared to other alcohols.  The preferred aprotic polar solvent is acetonitrile.
Patent CA-2011329-A1 (CA)
Inventor: SUZUKI FUMIO
IPC: A61P9/12
Filed: 1990-03-02
Abstract: Novel xanthine compounds represented by the following formula: <CHEM> and pharmaceutically acceptable salts thereof have a diuretic action, a renal-protecting action and a vasodilative action. The compounds are useful as a diuretic, a renal-protecting agent and an antihypertensive agent.
Patent CA-2012707-A1 (CA)
Title: Partially digestible sucrose esters as low calorie fat mimetics
Inventor: KLEMANN LAWRENCE P
IPC: A23L33/20
Filed: 1990-03-21
Abstract: PARTIALLY DIGESTIBLE SUCROSE ESTERS                   AS LOW CALORIE FAT MIMETICS                   ABSTRACT OF THE DISCLOSURE   Mixtures of partially digestible sucrose fatty acid esters comprise an improved class of physiologically compatible fat replacements for foods and pharmaceuticals.
Patent CA-2014445-A1 (CA)
Title: Heat roll fixing unit
Inventor: NEGORO IKUO
IPC: G03G15/20
Filed: 1990-04-11
Abstract: Abstract of the Disclosures In a heat roll fixing unit equipped in an image recording device for fusing to fix a toner image on a recording sheet, a heat roller having a rugged surface over predetermined portion on the circumferential surface thereof and a backup roller opposedly arranged to the heat roller are pressed against with respect to each other, and the recording sheet carrying unfixed toner image thereon is held and fed between the backup roller and heat rollers, one or them being driven by a motor.
Patent CA-2014889-A1 (CA)
Title: Intra-rectal pharmaceutical foam compositions
Inventor: HEALEY JOHN N C
IPC: A61K9/00
Filed: 1990-04-19
Abstract: Pharmaceutical compositions suitable for intra-rectal administration in the form of a foam are described which comprise a therapeutically effective amount of 5-aminosalicylic acid; a pharmaceutically acceptable aqueous carrier therefor, and means for generating a foam.      Methods for their preparation and their use in the treatment of ulcerative colitis are also described.
Patent CA-2015933-A1 (CA)
Title: Data stream frame synchronisation
Inventor: BRUECKHEIMER SIMON D
IPC: H04L7/08
Filed: 1990-05-02
Abstract: A data stream has frames of fixed, or variable but determined, length and includes a fixed length header at a predetermined position in the frame, which header has a linear systematic code structure including information digits and check digits. The check digits are employed for frame synchronisation detection, as well as error detection and correction, using, far example, a modified CRC (cyclic redundancy check) decoder.
Patent CA-2019047-A1 (CA)
Title: Hexahydropyrimidine derivatives
Inventor: MALFER DENNIS J
IPC: C08K5/3442
Filed: 1990-06-14
Abstract: Case EI-5918-A     HEXAHYDROPYRIMIDINE DERIVATIVES                 Abstract of the Disclosure When a phenol having substituents in at least the 2- and 4-posi-tions but having a hydrogen atom in the 6-position, or a phenol having substituents in at least the 2- and 6-positions but having a hydrogen atom in the 4-position is reacted with formaldehyde and 1,3-propanediamine, a unique insertion-condensation reaction occurs whereby the product is a hexahydropyrimidine derivative which may be represented by the general formula            (I) wherein R1 is (i) a 2-hydroxybenzyl group having an inert substituent (preferably a hydrocarbyl substituent) in at least the 3- and 5-positions or (ii) a 4-hydroxybenzyl group having an inert substituent (preferably a hydrocarbyl substituent) in at least the 3- and 5-positions: and R2 is (i) a 2-hydroxybenzyl group having an inert substitutent (preferably a hydrocarbyl substituent) in at least the 3- and-5-positions or (ii) a 4-hydroxybenzyl group having an inert substituent (preferably a hydrocarbyl substituent) in at least the 3- and 5-positions or (iii) a hydrogen atom.  Uses for such compounds include their use as antioxidants and stabilizers for various substrates, such as fuels, lubricants, and functional fluids.
Patent CA-2020430-A1 (CA)
Title: Electrostatic dissipating composition and method relating thereto
Inventor: MERTZEL ELAINE A
IPC: C08L71/02
Filed: 1990-07-04
Abstract: ABSTRACT          A method of manufacturing an electrostatic dissipating material (and compositions derived therefrom), wherein the method comprises:           heat mixing or blending a first, a second and a third component in two steps, whereby in the first step the second and third components are first heat mixed or blended together to provide an initial mixture, and in a second step the first component is heat mixed or blended with said initial mixture, the first component comprising a polyolefinic, urethane, condensation, vinylic or styrenic polymer, the second component comprising a oxirane copolymer, and the third component comprising a polymer additive.
Patent CA-2020724-A1 (CA)
Inventor: PULIDO MIGUEL L
IPC: A01N43/78
Filed: 1990-07-09
Abstract: 2-(thiocyanomethylthio) benzothiazole and at least one tri-halogenated phenol, preferably 2,4,6-tribromophenol, are used, preferably in synergistic amounts, to control microbiological growth.
Patent CA-2021003-A1 (CA)
Title: Temperature-measuring device for an induction-type cooking appliance and appliance having such a device
Inventor: GOUARDO DIDIER
IPC: H05B6/12
Filed: 1990-07-12
Abstract: ABSTRACT            TEMPERATURE-MEASURING DEVICE FOR AN INDUCTION-TYPE COOKING APPLIANCE AND APPLIANCE HAVING SUCH A DEVICE         The invention relates mainly to a temperature-measuring device for an induction-type cooking appliance and to an appliance comprising such a device.        The present invention is concerned with a heat-measuring  device  for  an  induction-type  cooking  hob comprising a heat conductor (6). The presence of the heat conductor  (6)  makes  it  possible  to  measure  the temperature  of  a  saucepan (4)  independently of  its diameter or its state. A heat conductor of the device according to the present invention comprises means (8) making it possible to minimize its heating by currents induced by the inductor (2).        The device according to the present invention is used  for  the measurement  of  temperature  during  the induction heating.        The present invention applies mainly to measure-ments of the temperature of vessels or their content during cooking by the use of induction-type cooking hobs.
Patent CA-2022379-A1 (CA)
Title: Medicaments
Inventor: COOPER STEVEN J
IPC: A61K31/415
Filed: 1990-07-31
Abstract: A B S T R A C T                           MEDICAMENTS         The invention relates to the use of ondansetron or a  physiologically acceptable  salt  or  solvate  thereof, particularly ondansetron hydrochloride dihydrate,  in the treatment of bulimia or a related disorder.
Patent CA-2024011-A1 (CA)
Title: 1-substituted-1,2-dihydro-4-[(substituted)-phenyl]imidazo-[ 1,5-a]pyrimidine-8-carbonitriles
Inventor: TSENG SHIN S
IPC: A61K31/505
Filed: 1990-08-24
Abstract: Title:  1-SUBSTITUTED-1,2-DIHYDRO-4-[(SUBSTITUTED)PHENYL]IMIDAZO-[1,5-a]PYRIMIDINE-8-CARBONITRILES                   ABSTRACT OF THE DISCLOSURE         This disclosure describes 1-substituted-1,2-di-hydro-4-[(substituted)phenyl]imidazo[1,5-a]pyrimidine-8-carbonitriles which are useful as antihypertensive agents and/or antidepressant agents in mammals.
Patent CA-2024012-A1 (CA)
Inventor: KANG SUNG K
IPC: B23K33/00
Filed: 1990-08-24
Abstract: A contact member for thermocompression bonding in integrated circuit packaging has on a conductor end a uniform texture deformable layer with a hardness value in the range of that of soft gold which is approximately 90 on the Knoop scale and with a rough surface morphology having ridges with approximately 1 micrometer modulation frequency and a depth between ridges of from 1/4 to 1/2 that  of  the  average  integrated  circuit  pad.   The deformable layer is produced by plating gold in a strong electronegative plating bath within a range of 0.03 to 0.05 mA/sq.cm. current density.  Plating apparatus, for plating different areas, with different electronegative conditions, with separate independently powered anodes, is provided.
Patent CA-2024421-A1 (CA)
Title: Prodrugs of carbonic anhydrase inhibitors
Inventor: SCHOENWALD RONALD D
IPC: A61P27/02
Filed: 1990-08-31
Abstract: ABSTRACT OF THE INVENTION   Prodrugs are prepared of the carbonic anhydrase inhibitors 2-benzothiazolesulfonamide, hydroxymethazolamide, and dichlor-phenamide.  The prodrugs link a water soluble compound to the pharmacologically active carbonic anhydrase inhibitor through an enzymatically or hydrolytically degradable bond.
Patent CA-2025703-A1 (CA)
Title: Pulsatile once-a-day delivery systems for minocycline
Inventor: SHETH NITIN V
IPC: A61P31/04
Filed: 1990-09-19
Abstract: Pharmaceutical delivery systems containing 7-dimethyl-6-deoxy-6-demethyltetracycline or a non-toxic said addition salt thereof comprising mixtures or separate administration units of pH sensitive polymer coated spherical granules adapted to release the minocycline in a medium having a pH of in the range of from about 4.0 to about 7.5 and coated or uncoated quick release granules adapted to release minocycline in a medium having a pH of less than about 3.9 or minocycline powder, pH adapted multi-coated compositions and oral dosage unit forms liquids, capsules or tablets containing the above are provided.      These systems and formulations provide at least minimum therapeutic blood levels of minocycline for at least about 24 hours when administered to a subject only once-a-day. Methods for the preparation of the systems and formulations are provided as well.
Patent CA-2025821-A1 (CA)
Inventor: BRYSELBOUT FRANCIS
IPC: G01N30/54
Filed: 1990-09-20
Abstract: Le dispositif de dosage d'impuretés dans un gaz par chromatographie en phase gazeuse comprend: un dispositif de piégeage cryogénique des impuretés muni d'une colonne remplie de granulés d'un produit adsorbant les impuretés, d'un dispositif de réfrigération capable de maintenir la colonne à basse température pendant le passage du gaz chargé en impuretés et d'un dispositif de réchauffage en vue de la désorption ultérieure; un premier chromatographe en phase gazeuse en vue d'une analyse préliminaire muni d'une colonne à remplissage pour chaque impureté; un dispositif de recentrage cryogénique des impuretés muni d'une colonne capillaire, de moyens de réfrigération capable de maintenir la colonne à basse température pendant le passage d'un gaz vecteur ayant traversé le premier chromatographe et de moyens de réchauffage de désorption; et un deuxième chromatographe en phase gazeuse muni d'une colonne capillaire, un dispositif de détection étant placé à la sortie.
Patent CA-2027606-A1 (CA)
Inventor: BOCQUET MICHEL
IPC: A61B18/00
Filed: 1990-10-15
Abstract: The device of the invention comprises an ultrasonic generator to which the near end (6A) of a wire (6) is connected via coupling means (5). 
<??>According to the invention, the said coupling means (5) comprise: 
 
  - a sleeve (7) which can be radially deformed in an elastic manner receiving the near end of the said wire and provided with a conical-shaped flared part (7B); 
  - a drilled hole (8) provided in a component (9) solidly attached to the said generator and into which the said sleeve can be inserted, the conical part (7B) of the said sleeve (T) coming into contact with a complimentary conical wall (8B) made in the said drilled hole; and 
  - a clamping element (10) which can interact, by screwing, with the said component (9) and act against the said sleeve (7). 
 
<IMAGE>
Patent CA-2028252-A1 (CA)
IPC: F25J3/04
Filed: 1990-10-22
Abstract: ABSTRACT      The present invention is a cryogenic process to produce medium to high pressure gaseous nitrogen without the use of a nitrogen product compressor.  The process is an improvement to a conventional nitrogen generator with waste expander.  The present invention reboils crude liquid oxygen from the main distillation column in two stages at different pressures and uses a small number of trays above one of the reboilers.  The use of the trays above one of the reboilers allows collection of a pressurized stream with a composition similar to air. This pressurized stream is recycled to an intermediate stage of the main air compressor.
Patent CA-2030093-A1 (CA)
Inventor: MASUMOTO TSUYOSHI
IPC: C22C45/00
Filed: 1990-11-15
Abstract: Disclosed is an amorphous alloy having superior processability which has a composition represented by the general formula:                       XaMbAlc wherein:      X is at least one element of Zr and Hf; M is at least one element selected from the group consisting of Ni, Cu, Fe Co and Mn;  and a, b and c are, in atomic percentages:    25 ~ a ~ 85, 5 ~ b ~ 70 and 0 < c ~ 35, preferably 35 ~ a ~ 75, 15 ~ b ~ 55 and 5  c ~ 20 and more preferably 55 ~ a ~ 70, 15 ~ b ~ 35 and 5 ~ c ~ 20, the alloy being at least 50% (by volume) composed of an amorphous phase.  Since the amorphous alloy is at least 50% by volume amorphous and can be present in a supercooled liquid state in a wide temperature range, it has a greatly superior processability together with high levels of strength, thermal resistance and corrosion resistance characteristic of amorphous alloys.
Patent CA-2031158-A1 (CA)
Title: Facsimile cartridge system
Inventor: CURLEY CHARLES M
IPC: H04N1/032
Filed: 1990-11-29
Abstract: ABSTRACT         A facsimile machine and paper cartridge system wherein the facsimile machine is convertible by accepting disposable cartridges having either plain paper or paper coated with a thermal transfer coating, either cartridge having a paper flow path which reverses the natural curl of the paper to provide generally flat facsimile printouts.          Each type of cartridge may also be provided with a wiping surface for cleaning the facsimile machine print head upon the  insertion  and  removal  of  the  cartridge from  the machine.
Patent CA-2031341-A1 (CA)
Title: A rotary head type tape recording and/or reproducing apparatus
Inventor: MURAKAMI ATSUSHI
IPC: G11B15/675
Filed: 1990-12-03
Abstract: A rotary head type tape recording and/or reproducing apparatus comprises a rotary head drum having a rotary head for recording and/or reproducing information signals onto or from a magnetic tape helically wrapped around the rotary head drum with a predetermined wrap angle and an outer peripheral surface of the drum being free of leads for restricting the movement of the wrapped magnetic tape in the width direction; a pair of tape guides having flange portions which are located near both sides of the rotary head drum means and restrict the movement of the magnetic tape in the width direction; and a head drum supporting and moving arrangement for fixing the rotary head drum and the pair of tape guides and moving so as to be in contact with or away from a cassette loading arrangement which loads and supports a tape cassette in which the magnetic tape is enclosed.
Patent CA-2034230-A1 (CA)
Title: Coke oven repair
Inventor: KOLVEK ROBERT E
IPC: C10B5/04
Filed: 1991-01-15
Abstract: A repair of the damaged end of a heating wall of a coking oven, which improved repair includes utilization of a novel cast refractory module which may be utilized to replace existing silica bricks within the damaged coke oven heating wall. The novel cast refractory module is a unitary structure formed from a castable refractory material having very high dimensional stability over a wide range of temperatures. Each repair module is a rectangular parallelpiped having vertically extending flues formed therein, one end of a module being adapted to conform to the end shape of the damaged heating wall, the other end of the module being adapted to interfit with existing brickwork. The modules are assembled by initially removing damaged brickwork from the damaged heating wall and then placing in the new modules which are mortared in place.
Patent CA-2036940-A1 (CA)
Title: A syringe for dispensing measured quantities of a medicament
Inventor: SILVER JULES
IPC: A61M5/315
Filed: 1991-02-22
Abstract: A disposable syringe (Figure 2, 10) for dispensing a metered dosage of a material includes a plunger rod (14) which is axially movable within a syringe barrel (12) for dispensing the material. The plunger rod (14) includes a rail section (18) located outside the syringe barrel (12), and a slidable stop member (16) is secured to the rail section (18) for adjusting the volume of material to be dispensed. The adjustable stop member (16) includes a knife edge (62) for embedding into a surface (32) of the rail section of the plunger rod (14) to lock the stop member (16) in a desired position.
Patent CA-2038707-A1 (CA)
Inventor: PRINCE LAWRENCE S
IPC: H01M10/0562
Filed: 1991-03-20
Abstract: ABSTRACT       A solid, composite, ion-conductive electrolyte member comprised of first and second layers which are bonded together, with the first layer being constituted of an ion-conductive material such as glass or polycrystalline ceramic, e.g., ANL glass or beta-type alumina, and the second layer being preferably constituted of a material selected from the group consisting of the titanium oxide family, most preferably, rutile (TiO2), and its related suboxides (TiN O2N-1, where N is any selected number from 4-10, inclusive). The first and second layers are preferably intimately bonded together by means of an electrophoretic deposition process, a chemical vapor deposition process, a plasma spraying deposition process, a pyrolitic deposition process, or a pressing and sintering process.
Patent CA-2039098-A1 (CA)
Title: Polymer/fatty acid fluid suspension
Inventor: BURDICK CHARLES L
IPC: A61K8/04
Filed: 1991-03-26
Abstract: An improved thickening agent suitable for paper coating applications is a fluid suspension of 35 to 55 parts CMC or similar water soluble polymer in 40 to 55 parts fatty acid with 1 to 5 parts clay and up to 20 parts emulsifier.      Handling convenience and thickening performance are improved.
Patent CA-2040848-A1 (CA)
Inventor: NORIMATSU HIDEHIKO
IPC: H03L7/107
Filed: 1991-04-19
Abstract: A phase locked loop (PLL) frequency synthesizer capable of switching the output frequency thereof at high speed. The frequency synthesizer has a second phase/frequency comparator and a second variable frequency divider in addition to a first phase/frequency comparator which is included in a PLL. The synthesizer switches over the time constant of a loop filter by the output of the second phase/frequency comparator, i. e., independently of the PLL which is responsive to the output of the first phase/frequency comparator. As a result, the time constant of the loop filter is switched over at an advanced timing to thereby reduce PLL tuning time.
Patent CA-2045188-A1 (CA)
Inventor: LUCIANI LUCIANO
IPC: C08F10/02
Filed: 1991-06-21
Abstract: A solid catalyst component for ethylene (co)polymerization, consisting of a particulate silica support and a catalytically active part containing titanium, magnesium, chlorine and alkoxy groups is obtained by a) preparing a solution of magnesium chloride in ethanol; b) impregnating particulate silica with said solution; c) eliminating the unabsorbed ethanol from the suspension; d) eliminating absorbed ethanol from the solid; e) interacting the resultant solid with a titanium chloride, alkoxide or chloroalkoxide; and possibly interacting with an alkylaluminium chloride. In a preferred embodiment in stage e), a silicon halide is added to improve the catalyst activity.
Patent CA-2049794-A1 (CA)
Title: Internally cooled roller for a continuous-casting plant, and a process for the production thereof
Inventor: LUDORFF HARALD
IPC: B22D11/128
Filed: 1991-08-23
Abstract: ABSTRACT         The present invention relates to an internally cooled roller for a continuous casting plant, in particular a supporting and guide roller, this having a casing of copper or alloys that surrounds a core of ferrous material and which is joined to said core, and with a wearing layer that surrounds this casing.  In order to create an internally cooled, dimensionally stable roller for a continuous casting plant which has high resistance to wear and, at the same time, good thermal conductivity, and to describe a process for producing this, it is proposed that the wearing layer consist of an intermediate layer of lower thermal conductivity than copper that is applied to the casing and at least one covering layer that is applied to the intermediate layer by buildup welding.
Patent CA-2052906-A1 (CA)
Title: System for modulating/demodulating digital signals transmitted with encoded modulation
Inventor: CHOULY ANTOINE
IPC: H04L27/34
Filed: 1991-10-07
Abstract: ABSTRACT            SYSTEM FOR MODULATING/DEMODULATING DIGITAL SIGNALS TRANSMITTED WITH ENCODED MODULATION.             Encoding and decoding devices (5, 105) influ-encing digital signals transmitted with encoded modula-tion. For the encoding a channel encoder (12) performs a code concatenation to distribute the protection redun-dancy bits over various symbol periods of the encoded modulation, for example, over two multiplexed 16 QAMs. A source encoder (11) may effect a reduction of the input bit rate. A differential encoder (31) may be used for the encoding so as to ensure the detection of the phase rotation invariance of the code.            At the receiver end a decoding device (105) performs the corresponding operations in reverse. The invention may be used for digital signal transmission of: television, microwave, mobile radio signals, for storage on compact disc or on digital video recorder, for communication between computers.            Applications: Television, microwave links, mobile radio, storage on compact disc or on digital video recorder, communication between computers.            References: Figs. 1A and 1B.