baber/WOPTO huggingface dataset:
Patent CA-2025948-A1 (CA)
Title: Metal alkoxide modified resins for negative-working electrostatic liquid developers
Inventor: CHAN DOMINIC M
IPC: G03G9/12
Filed: 1990-09-21
Abstract: TITLE METAL ALKOXIDE MODIFIED RESINS FOR NEGATIVE-WORKING ELECTROSTATIC LIQUID DEVELOPERS                     ABSTRACT Negative-working electrostatic liquid developer consisting essentially of (A)  nonpolar liquid having Kauri-butanol value less than 30, present in major amount, (B)  particles, average by area particle size of less than 10 µm, of a polymer prepared from the reaction product of polymeric resin having free carboxyl groups and a metal alkoxide as defined, and (C)  nonpolar liquid soluble ionic or zwitterionic charge director compound. Optionally a colorant and an adjuvant compound are present.  Process of preparation of electrostatic liquid developers is described.  The developer is useful in copying, making proofs including digital color proofs, lithographic printing plates, and resists.
Patent CA-2027448-A1 (CA)
Title: Improvements in optical time domain reflectometers
Inventor: HAYWOOD JOHN H
IPC: G01M11/02
Filed: 1990-10-12
Abstract: The present invention provides an interchangeable computer card capable of being inserted into a computer to provide signal generation and signal detection necessary to allow the computer to generate data and provide the desired graphic display for testing the integrity of an optical fibre transmission line.
Patent CA-2029511-A1 (CA)
Title: Electrovalve
Inventor: GANZ NORBERT
IPC: F16K31/06
Filed: 1990-11-07
Abstract: ABSTRACT OF THE DISCLOSURE        Electrovalve Normally opened electrovalve comprising a body, a sup-ple and deformable membrane perforated at its periphery and reinforced at its center by means of a rest member both provided with a central aperture, the membrane and the member being intended to obturated the water passage in resting onto the seat of the body, an electro-magnet and a spring acting on a core to ensure the closure and the opening of the passage, characterized by the fact that the electro-magnet 14 is mounted in a housing 15 which comprises a backspace 21 for the core 22, the said core comprising a rod 17 which extends it towards the resting member 4 provided at its end with a tightening joint 18 so that when the valve is out of tension the spring 20 pushes the core 22 into the backspace 21 and liberates the mem-brane 2 and the resting member 4 from the seat 13.          (figure 1).
Patent CA-2031810-A1 (CA)
Title: Process for the expression of foreign genes in yeasts
Inventor: BROKER MICHAEL
IPC: C12N15/09
Filed: 1990-12-07
Abstract: Abstract of the Disclosure A process for the expression of foreign genes in yeasts The invention relates to the optimization of the expres-sion of  foreign genes,  especially recombinant factor XIIIa (rFXIIIa) in yeasts. The optimization was essen-tially carried out by use of a hybrid Gal UAS /CycI promoter, deletion of the 5' non-translated region and truncation of the 3' non-translated region of the FXIIIa cDNA,  selection of specific yeast strains and a par-ticularly suitable growth medium composed of whey or whey hydroly ate.  Quantities  achievable  in  this  way  are ? 100 mg/l FXIIIa in shake cultures and ? 500 mg/l in fermentation after scale-up.
Patent CA-2037400-A1 (CA)
Title: Windshield wipers
Inventor: FRY STEVEN A
IPC: B60S1/38
Filed: 1991-03-01
Abstract: ABSTRACT         A mount for supporting a windshield wiper blade has first and second shells hingedly joined.  The shells form an inside channel having an exterior surface.  Wiper support means carried by the shells support the wiper blade disposed in the channel.  The exterior surface is so shaped, disposed and arranged to provide a substantial shield against direct sunlight for the support means and for the wiper, and an external surface to react with an airstream and to be visible as a style.
Patent CA-2039222-A1 (CA)
Title: Preparation and isolation of single-stranded, biotinylated nucleic acids by avidin-biotin cleavage
Inventor: WU ANNIE L
IPC: C12Q1/68
Filed: 1991-03-27
Abstract: PREPARATION AND ISOLATION OF SINGLE-STRANDED, BIOTINYLATED NUCLEIC ACIDS BY AVIDIN-BIOTIN CLEAVAGE             Abstract of the Disclosure A biotinylated target nucleic acid can be isolated from a mixture of nucleic acids using a capture reagent comprising avidin.  The targeted nucleic acid is complexed with avidin on a substrate and separated from uncomplexed materials.  The complex is heated at above about 65°C for a suitable time to cleave the avidin-biotin bonds to release the desired targeted nucleic acid.  Upon release, the targeted nucleic acid can be collected or detected in a suitable manner, such as with a complementary probe.  This method is also useful for preparing single-stranded DNA for a number of uses.
Patent CA-2042425-A1 (CA)
Title: Biocatalytic process for the production of l-(-)-carnitine from crotonobetaine and strains of proteeae for use in said process
Inventor: SHAPIRO STUART
IPC: C12N9/88
Filed: 1991-05-13
Abstract: A process is described for stereospecifically hydrating crotonobetaine to L-(-)-carnitine via the action of an enzyme produced by four new strains of Proteus mirabilis (NRRL B-18480, NRRL B-18481, NRRL B-18482, and NRRL B-18483) in biotransformation media containing from 10 to 12% (w/v) crotonobetaine inner salt.
Patent CA-2043228-A1 (CA)
Inventor: SCHNEIDER WERNER
IPC: A61K31/675
Filed: 1991-05-24
Abstract: The invention relates to the use of magnesium-pyridoxal-5--phosphate-glutaminate to prepare a pharmaceutical suitable for the reduction of LDL-bound peroxides and for the prophylaxis of vascular lesions resulting therefrom in the absence of hypercholesteraemia or hyperlipidaemia.
Patent CA-2044228-A1 (CA)
Title: Method of sterilizing with low vapor pressure sterilants
Inventor: CHILDERS ROBERT W
IPC: A61L2/18
Filed: 1991-06-10
Abstract: ABSTRACT   A method of sterilizing using low vapor pressure sterilants comprises the steps of vaporizing a liquid to produce a vapor phase sterilant having a low vapor pressure.  The vapor phase sterilant is heated beyond the vaporization temperature to increase the vapor pressure thereof.  The increased vapor pressure is used to deliver the heated vapor phase sterilant to an enclosure.  The heated vapor phase sterilant is cooled to the enclosure's temperature.  The heat released by the vapor phase sterilant as it cools is absorbed by the enclosure without significantly increasing the enclosure's temperature.  The concentration of vapor phase sterilant in the enclosure is maintained until sterilization is achieved.
Patent CA-2044760-A1 (CA)
Inventor: VAN EERDEN JOHN J
IPC: F23D14/22
Filed: 1991-06-17
Abstract: A gaseous fuel burner provides substantial reduction of nitrogen oxide content in the combustion gases by creating a screen of premix combustion products, by introducing secondary gaseous fuel for admixture with the screen, and by exposing secondary air to the mixture for reaction with the secondary gaseous fuel.
Patent CA-2045919-A1 (CA)
Inventor: GERVAIS JOCELYN
IPC: C23C22/52
Filed: 1991-06-28
Abstract: ABSTRACT OF THE DISCLOSURE     A method for artificially forming patina on copper comprising: a) removing any impurity present on the surface of copper substrate; b) polishing the copper substrate with an aqueous solution containing sodium ions, copper ions, acetate ions,  chlorine ions,  sulphate ions, H+ ions and an OH- ions until a brown colour is obtained; c) washing the polished copper substrate having brown colour of step (b), with water and drying;  d)  gently brushing  the copper substrate having been dried according to step (c),  washing and thoroughly drying;  e) submitting the copper substrate after having been thoroughly dried according to step (d), to a filtered aqueous solution containing copper carbonate, ammonium chloride, copper acetate, arsenic trioxide, copper nitrate and hydrochloric acid until the desired patinated copper substrate is obtained. The invention covers also the products resulting from the method, as well as specific solutions to carry steps (b) and (e).
Patent CA-2046375-A1 (CA)
Title: Package
Inventor: ABIKO KENJI
IPC: B65D81/26
Filed: 1991-07-05
Abstract: ABSTRACT OF THE DISCLOSURE    A package comprising a moisture-impermeable sheet material and a moisture-impermeable package film sealedly bonded onto said sheet material.  The package has first spaces to respectively contain articles to be packed, second spaces to respectively contain drying agents, and communicating spaces having a small area in its cross-section and respectively communicating the first spaces and the second spaces, between the sheet material and the package film.  The articles to be packed and the drying agents are respectively contained in the first spaces and the second spaces, being held without contacting each other interposing the respective communicating spaces.
Patent CA-2048302-A1 (CA)
Title: Solubilization reagent for biological test samples
Inventor: MEUCCI VICTORIA P
IPC: C09K23/18
Filed: 1991-08-01
Abstract: ABSTRACT OF THE DISCLOSURE      A solubilization reagent for use in analytical systems for the determination of hydrophobic analytes in a biological test sample, particularly analytical systems employing specific binding proteins for such analytes, such as in fluorescent polarization immunoassays, is disclosed.  The solubilization reagent dissociates analytes from various components of a biological test sample, such as cellular material, phospholipids, proteins and the like, at substantially low concentrations of such solubilization reagent while, at the same, minimizing the denaturation of specific binding proteins, such as, for example,  antibodies, which may be present in an analytical system.  Preferably, such surfactant is alkyl-oxy(polyethylene-oxy-propylene-oxy-sopropanol)  or N-tetradecyl-n,n-demethyl-3-ammonio-1-propane sulfonate, and may further comprise saponin.
Patent CA-2051333-A1 (CA)
Inventor: RHEINBERGER VOLKER
IPC: A61K6/884
Filed: 1991-09-13
Abstract: An improved dental material based on a polymerisable, ethylenically unsaturated monomer as binder and on a catalyst for cold, hot and/or photopolymerisation contains as inorganic filler 20 to 90% by weight of a mixture of   (A) amorphous spherical particles of silicon dioxide and up to 20 mol% of an oxide of at least one element of groups I, II, III and IV of the periodic table with a refractive index of 1.50 to 1.58 and with an average primary particle size of 0.1 to 1.0  mu m, and (B) quartz, glass ceramic or glass powder or mixtures thereof with a refractive index of 1.50 to 1.58 and with an average primary particle size of 0.5 to 5.0  mu m and, where appropriate, small amounts of other fillers to increase the opacity and adjust the viscosity.
Patent CA-2052203-A1 (CA)
Title: Liquid fuels for internal combustion engines and process and apparatus for making same
Inventor: WILSON EWERT J A
IPC: C10L1/18
Filed: 1991-09-25
Abstract: LIQUID FUELS FOR INTERNAL COMBUSTION ENGINES  AND PROCESS AND APPARATUS FOR MAKING SAME                            Abstract Internal combustion engine liquid fuels are produced by the mixing of a natural gasoline component and at least one octane-enhancing component.   The mix is weathered during the blending operation to remove light-weight hydrocarbons comprising one- to four-carbon  components.   The  light-weight hydrocarbons,  which preferably constitute less than 3 percent of the blended fuel, can be recovered to generate power to run the process.  The liquid fuel mixture  is  formulated to produce a desired octane rating,  an environmentally acceptable vapor pressure, and a mix which, when burned in an internal combustion engine, produces a minimum amount of pollutants.
Patent CA-2056918-A1 (CA)
Title: Composite foams of low thermal conductivity
Inventor: WOLFF BERNARDO
IPC: C08L25/02
Filed: 1991-12-04
Abstract: 0. 2 . 0050/4204g Abstract of the Disclosure: A. composite foam of low thermal conductivity comprises a)    20 80% by volume of silica aerogel particles having a mean diameter of from 0.1 to 20 mm and a density of from 0 . 08 to 0 .40 g/cm3, b)   20 - 80% by volume of a styrene polymer foam which surrounds the particles of component a) and binds them to one another and has a density of from 0 . 01 to 0.15 g/cm3, and, if desired, c)   conventional additives in  effective amount.
Patent CA-2058371-A1 (CA)
Title: Water-thinnable paint binders based on acrylate copolymers
Inventor: KRIESSMANN INGO
IPC: C09D133/04
Filed: 1991-12-23
Abstract: ABSTRACT OF THE DISCLOSURE         Water-thinnable paint binders based on alkyl (meth)acrylate copolymers obtained by a partial condensation of a polycarboxyl component with a polyhydroxyl component and a subsequent, at least partial, neutralization of the carboxyl groups are described.  A proportion of the alkyl (meth)acrylates can be replaced by aromatic vinyl compounds.          The condensation products contain 0.5 to 2% by weight of monomers containing two or more reactive double bonds, for example diol di(meth)acrylates or divinylbenzene, 0.5 to 2% by weight of polyol polythioglycolic acid esters and 0.5 to 3.5% by weight of fluorine-containing monomers.  The paint binders are particularly suitable for the formulation of high-grade heat-curable finishes with a low content of auxiliary organic solvents.
Patent CA-2058780-A1 (CA)
Inventor: BEDNORZ JOHANNES G
IPC: H01L39/14
Filed: 1992-01-06
Abstract: SUPERCONDUCTING FIELD-EFFECT TRANSISTORS WITH INVERTED      MISFET STRUCTURE AND METHOD FOR MAKING THE SAME            ABSTRACT            This   field-effect   transistor   comprises   a   conductive substrate  serving  as  the  gate  electrode,  an  insulating barrier layer, and a superconducting channel layer on top of the barrier layer. The superconductor layer carries a pair of mutually  spaced electrodes  forming  source  and drain, respectively. The substrate is provided with an appropriate gate contact.            The substrate consists of a material belonging to the same crystallographic family as the barrier layer. In a preferred embodiment,   the   substrate   is  niobium-doped   strontium titanate, the barrier layer is undoped strontium titanate, and the superconductor is a thin film of a material having a lattice constant at least approximately similar to the one of the materials of the substrate and barrier layers.  A preferred material of this type is YBa2Cu3O7-.delta., where O ? .delta. ? 0.5.
Patent CA-2059630-A1 (CA)
Title: Security grill
Inventor: ST GEORGE CHARLES W
IPC: E06B9/02
Filed: 1990-07-11
Abstract: A security grill assembly for an opening including bars (3) adopted to extend across an opening: said bar assembly member comprising a hollow housing (2), a locking slide (8) slidably mounted in the housing (2), an opening (18) in the housing (2) to accept the locking end of the removable member (3) (stud), the stud (3) and the slide (8) having interengageable catch means (19) to secure the stud (3) in the housing when the slide (8) is in a first position and release the stud (3) for removal from the housing (2) when the slide (8) is in a second position, locking means (13) to retain the slide (8) in the first position, said opening (18) also giving access to securement means (11) whereby the housing (2) is able to be secured to a support (10), said securement means (11) being occluded when the stud (3) and bar assembly is in place in the housing (2).
Patent CA-2060210-A1 (CA)
Title: Glutathione-s-lower fatty acid derivative
Inventor: OHMORI SHINJI
IPC: C07K5/093
Filed: 1991-04-26
Abstract: An S-(lower fatty acid)-substituted glutathione derivative of general formula (I), salts thereof, and production thereof, wherein R1 represents optionally substituted lower alkyl, R2 represents hydrogen, R3 represents hydrogen or optionally substituted lower alkyl, R4 represents hydroxy or optionally substituted lower alkoxy, and n is 1. These compounds can be advantageously used for treating hepatic disorders, because they have an excellent activity of inhibiting these disorders.
Patent CA-2060592-A1 (CA)
Title: Casing hanger seal assembly
Inventor: TAYLOR WILLIAM M
IPC: E21B33/00
Filed: 1992-02-04
Abstract: The present invention relates to an improved seal assembly for sealing between the interior sealing surface of a well housing and the exterior sealing surface of a hanger landed within the well housing and includes a seal body having a pair of outer lips diverging outwardly for sealing against the housing interior sealing surface and an interior series of annular ridges which have a diameter smaller than the outer diameter of the hanger exterior sealing surface, an upper energizer and a lower energizer for coacting with said lips to move the lips into sealing position and to store the energy of setting to ensure sealing engagement of the lips.
Patent CA-2061535-A1 (CA)
Title: Total water circulating system for shallow water areas
Inventor: MAKINO HISAO
IPC: C02F7/00
Filed: 1992-02-19
Abstract: ABSTRACT OF THE DISCLOSURE   A method and an apparatus are used in a shallow water area which for example is about two meters or less deep for producing a total water circulating flow from the bottom toward the top and then from the top toward the bottom, thereby improving the quality of the total water. The method consists essentially of providing an upward jet of fluid under pressure acting upon a water flow rising from the bottom toward the top through a tubular passage of vertically disposed tubular construction so that the water flow can be rising with its increasing speed.  At the top end of the tubular passage, the water flow is jetted out, forcing a circulating flow to follow the circular motions.      The apparatus comprises a vertically disposed tubular construction having a tubular passage through which the water flows and rises, including means for producing an upward jet of fluid under pressure disposed inside of the tubular passage and exposed to the water in the tubular passage.
Patent CA-2065001-A1 (CA)
Title: Bag sealer and adhesive tape therefor
Inventor: TER HAAR HERMAN W J
IPC: C09J7/22
Filed: 1990-08-15
Abstract: The invention relates to a device (1) for binding an article with adhesive tape, whereof ends can adhere to one another. The invention also has for its object to embody a bag sealer such that the danger of contamination is virtually eliminated. This objec-tive can be realized by a bag sealer having the special feature that the cavity inside the housing has a narrow outlet opening (202) through which the adhesive tape (2) is fed to the nip.
Patent CA-2069716-A1 (CA)
Title: Preparation of 6-0-alkylelsamicin a derivatives
Inventor: TODA SOICHIRO
IPC: C07H17/04
Filed: 1992-05-27
Abstract: ABSTRACT      This invention relates to novel elsamicin A derivatives having 6-0-alkyl substitutent, a process for producing said elsamicin A derivatives, antitumor compositions containing the same as the active ingredient, and a method for therapy using said compositions.
Patent CA-2069935-A1 (CA)
Title: Aqueous dispersions containing carboxylic acids and/or resinic acids for deinking printed wastepaper
Inventor: SMOLKA HEINZ-GERD
IPC: D21C5/02
Filed: 1990-10-10
Abstract: The invention relates to aqueous dispersions contain-ing A. C6-22 carboxylic acids and/or resinic acids and B      C6-22 oxoalcohols alkoxylated with 2 to less than 6 mol C2-4 alkylene oxides gor deinking printed wastepaper.
Patent CA-2070796-A1 (CA)
Title: Arylethers, their manufacture and methods of treatment
Inventor: MAIN ALAN J
IPC: A61P37/08
Filed: 1992-06-09
Abstract: ARYLETHERS,THEIR MANUFACTURE AND METHODS OF TREATMENT          Abstract of the Invention The invention relates to the compounds of the formula                      (I) and pharmaceutically acceptable salts thereof, in which: R is hydrogen or an acyl radical which is derived from an organic carbonic acid, an organic carboxylic acid, a sulfonic acid, or a carbonic acid; R1 is a substitment selected from an aliphatic hydrocarbon radical, an araliphatic hydrocarbon radical and a cycloaliphatic hydrocarbon radical; X1 and X3, independently of one another, are oxygen (-O-) or sulphur (-S-); and X2 is a divalent aliphatic hydrocarbon radical which may be interrupted by an aromatic radical; wherein the phenyl rings of formula I may be, independently of one another, further substituted by one or more substituents selected from halogen, trifluoromethyl, an aliphatic hydrocarbon radical, hydroxy, and hydroxy which is etherified by an aliphatic, araliphatic or cycloaliphatic alcohol or which is esterified by an aliphatic or araliphatic carboxylic acid; wherein aryl in the above definitions may be, independently of one another, further substituted by one or more substituents selected from halogen, trifluoromethyl, an aliphatic hydrocarbon radical, hydroxy and hydroxy which is etherified by an aliphatic, araliphatic or cycloaliphatic alcohol or which is esterified by an aliphatic or araliphatic carboxylic acid; and wherein a cycloaliphatic hydrocarbon radical may be substituted by an aliphatic radical. The compounds are useful as selective LTB-4 receptor antagonists in the treatment of conditions or syndromes in mammals which are responsive Lo LTB-4 receptor antagonism.
Patent CA-2070967-A1 (CA)
Title: Hollow fibres of modified poly-(2,6-dimethyl-p-oxyphenylene)
Inventor: STOPPONI ALESSANDRO
IPC: D01F6/78
Filed: 1992-06-10
Abstract: HOLLOW FIBRES OF MODIFIED POLY-(2,6-DIMETHYL-p-OXY-PHENYLENE) Abstract A  hollow  fiber  of  amorphous,  hydroxy-ethylated poly-(2,6-dimethyl-p-oxyphenylene)   (PPO-OH)   with   a   glass transition temperature (Tg) of from 180 to 200°C is disclosed, which  is  formed  by  a  high-density,  microporous  layer  on  a macroporous  backing,  and  having  an  outer  diameter  comprised within the range of from 450 to 550 µm and an inner diameter comprised within the range of from 250 to 400 µm.      The process for preparing the hollow fibre and the use of said fibre in the processes of separation of gas mixtures are disclosed as well.
Patent CA-2071761-A1 (CA)
Title: Evaporator for a compressor-refrigerating apparatus
Inventor: BITTER DIETER
IPC: F25B39/02
Filed: 1992-06-22
Abstract: ABSTRACT          The invention relates to an evaporator for a compressor-refrigerating apparatus.          The characterizing features of the invention are that a guide tube is provided which is disposed at least partially outside the evaporator plate and partially in the suction tube, is directly or indirectly retained on the evaporator and has a somewhat larger internal diameter than the external diameter of the throttle/capillary tube and a substantially smaller external diameter than that of the internal diameter of the suction tube; the throttle/capillary tube is inserted in the guide tube from outside and the compressor side end zone of the internal generated surface of the guide tube is connected pressure-tight inside a first longitudinal portion of the coolant supply line disposed in the guide tube to the associated zone of the external generated surface of the throttle/capillary tube and terminates in the guide tube; and the guide tube forms a second longitudinal portion of the coolant supply line having a cross-section widened in comparison with the capillary flow cross-section, and the inside space of the guide tube determined by the widened second longitudinal portion is connected to the inlet zone of the coolant duct.
Patent CA-2072778-A1 (CA)
Title: Disposal method for organic and inorganic nonmetallic ancillary materials from used vehicles, used appliances and the like
Inventor: RAZIM CLAUS
IPC: B09B5/00
Filed: 1992-06-30
Abstract: ABSTRACT    An  environmentally advantageous method for disposal of organic and inorganic nonmetallic ancillary materials from used vehicles or other mass-produced products, such as washing  machines  or  refrigerators,   uses  the  waste substances as chemically reducing and slag-forming fluxes in the smelting of iron ore in a blast furnace plant or in the production of steel or cast iron in a cupola furnace plant to at least partially replace the substances normally used as fluxes.