baber/WOPTO huggingface dataset:
Patent CA-2023957-A1 (CA)
Title: Cyclic ketone derivatives and pharmaceutical compositions containing same as well as a process for their preparation
Inventor: BUDAI ZOLTAN
IPC: A61K31/36
Filed: 1990-08-24
Abstract: NOVEL AMINOPROPANOL DERIVATIVES, PROCESS FOR THEIR PREPARATION      AND PHARMACEUTICAL COMPOSITIONS COMPRISING THE SAME    A B S T R A C T          The  invention  relates  to  novel  racemic  or optically active  aminopropanol derivatives of formula I                                 I   wherein R and R1   are independently hydrogen atom, halogen atom, lower alkoxy, or together represent a methylene dioxy group, R2 and R3  together represent a chemical bond or independently stand for a hydrogen atom, R4 and R5  are independently hydrogen atom, C3-7 cycloalkyl group or straight or branched, saturated or unsaturated C1-12 alkyl group optionally substituted by one or more dialkyl--aminoalkyl, dimethoxyphenyl or phenyl groups, or R4 and R5  together with the adjacent nitrogen atom form a 4 to 7 membered ring optionally comprising an oxygen, sulfur or a further nitrogen atom, which ring is optionally substituted by a phenyl, benzyl or C1-3 alkyl group and the said substituents may carry a hydroxyl group, one or two methoxy groups, halogen atoms or trifluoro-methyl groups, or R4 and R5   together with the adjacent nitrogen atom form a piperidine ring which is optionally substituted by a phenyl or benzyl group and, if desired, it comprises a double bond, R6          stands for hydrogen atom or benzoyl group, and n           represents an integer from 3 to 6, acid-addition salts and quaternary ammonium derivatives thereof.       Further the invention relates  to processes for preparing these compounds.       The  compounds of the invention exert cardiac circulation controlling    and/or    improving,    central   nervous   system tranquillizing  and/or  digestive system irregulations   improving effects.
Patent CA-2024028-A1 (CA)
Title: Water-in-oil emulsions and their use in the elimination of hydrogen sulphide
Inventor: FREDERIC MABIRE
IPC: C02F1/26
Filed: 1990-08-27
Abstract: DESCRIPTIVE ABSTRACT            "New water-in-oil emulsions and their use in the  elimination of hydrogen sulphide".     Water-in-oil emulsions containing by weight about :  20 to  80 % of a dispersed aqueous phase containing about 20  to %  of  one  or  more  aldehydes  chosen  from  the  group constituted   by   formaldehyde,   glyoxal,   glutaraldehyde, glycolaldehyde or glyoxylic acid and 80 to 30 % of an aqueous solution  containing 90  to 100 % water and 10 to  0%  of  a buffer  agent pH = 5.5 + 1.5; and 80 to 20 % of a  continuous oil  phase  containing  about  90 to 99  %  of  one  or  more saturated and liquid C6 - C16 hydrocarbons, and 10 to 1 %  of an emulsifying system constituted by one or more water-in-oil emulsifying  agents  and  process  for  the  elimination   of hydrogen sulphide.
Patent CA-2024630-A1 (CA)
Inventor: VAN MEEL JACQUES
IPC: A61K31/55
Filed: 1990-09-05
Abstract: Abstract PAF-antagonists The present invention relates to the use of PAF-antagonists for treating diseases associated with reduced cardiac .beta.-receptor stimulation.
Patent CA-2025691-A1 (CA)
Inventor: SIUTA ALBERT J
IPC: C07C269/08
Filed: 1990-09-19
Abstract: A wiped film evaporation process for reducing the amount of residual toluene diisocyanate in a polyurethane prepolymer reaction product mixture. An inert sweeping gas is added to the evaporation process, preferably after first passing through a holdup volume of the prepolymer which has passed through the evaporation zone.
Patent CA-2026454-A1 (CA)
Title: Use of crosslinked polymer microparticles in paints as filler substitute and/or as crosslinking filler
Inventor: HONEL MICHAEL
IPC: C09D201/00
Filed: 1990-09-28
Abstract: - ? -                   HOE 89/F 322 ABSTRACT         Use of crosslinked polymer microparticles in paints as filler substitute and/or as crosslinking filler The invention relates to the use of crosslinked polymer microparticles having an average particle size of at most 5 µm and a glass transition temperature (Tg) of at least +30°C in aqueous paint preparations as filler and/or as partial substitute of white pigments, in particular of titanium dioxide.            Among  other  things,  the  corresponding  paints  show increased spreading power, less tendency for sedimenta-tion and reduced crater formation.
Patent CA-2028724-A1 (CA)
Title: Solid feeding of silane crosslinking agents into extruder
Inventor: FURRER WILLY
IPC: C08J3/24
Filed: 1990-10-29
Abstract: A process for producing a polymer crosslinkable by exposure to moisture in the presence of a hydrolysis/condensation catalyst comprising blending (i) a thermoplastic base polymer, (ii) a solid carrier polymer containing a silane, and (iii) a free radical generator; heating and mixing (i), (ii) and (iii) together at a temperature above the crystalline melting point of said base polymer; optionally, a free-radical generator, hydrolysis/condensation catalyst, and other additives are contained in the solid carrier polymer.
Patent CA-2029494-A1 (CA)
Title: Production of sponge metal from sponge metal fines
Inventor: ABODISHISH HANI A M
IPC: C22B60/02
Filed: 1990-11-16
Abstract: The pyrophorie fines inevitably resulting from the crushing of zirconium and/or hafnium or other exotic metal fines, such as titanium and uranium, ase brought into contact with molten magnesium or a molten mixture of magnesium and magnesium chloride in the usual vacuum distillation furnace so that their surfaces are wetted by the molten material, after which furnace temperature is dropped to solidify the molten material about the fines. Furnace temperature is then raised to that required to vaporize the magnesium and magnesium chloride, whereupon sintering of the fines,takes place over a period of time.
Patent CA-2030542-A1 (CA)
Title: Silicon-containing environment-protective agent adsorbing radioactive metal isotopes and toxic heavy metals and a pharmaceutical composition containing same
Inventor: VARGA LASZLO
IPC: B01J20/12
Filed: 1990-03-21
Abstract: SILICON-CONTAINING ENVIRONMENT-PROTECTIVE AGENT ADSORBING RADIO-ACTIVE METAL ISOTOPES AND TOXIC HEAVY METALS AND A PHARMACEUTICAL COMPOSITION CONTAINING SAME                          A b s t r a c t The invention relates to an environment-protective agent consist-ing of silicon-containing minerals for adsorbing radiactive metal isotopes and toxic heavy metals, which comprises as silicon-containing minerals with a particle size of 0.001 to 0.5 mm; a natural diatomaceous earth and at least two natural zeolite minerals of the general formula   wherein M     stands for sodium, potassium or calcium; x     is a number between 1 and 2 inclusive of both extreme values; Y     is 3 or 10; and Z     is 6 or 7 treated by dilute acid, washed to neutral, dried to a constant weight at a temperature up to 115 °C and then heat-treated at 150 to 350 °C, preferably at 250 °C, where the amount of each mineral ingredient independently of each other is at least 0.1% by weight up to 99.8% by weight calculated to the total weight of the agent.    The invention further relates to pharmaceutical compositions and animal foods containing the above agent according to the invention as active ingredient.
Patent CA-2042054-A1 (CA)
Title: Cloning and expression of microbial phytase
Inventor: VAN GORCOM ROBERT F M
IPC: A23K1/165
Filed: 1990-09-27
Abstract: A nucleotide sequence encoding phytase has been isolated and cloned. The coding sequence has been inserted into an expression construct which in turn has been inserted into a vector capable of transforming a microbial expression host. The transformed microbial hosts may be used to economically produce phytase on an industrial scale. The phytase produced via the present invention may be used in a variety of processes requiring the conversion of phytate to inositol and inorganic phosphate.
Patent CA-2049283-A1 (CA)
Title: Method and apparatus for capillary hydrodynamic fractionation
Inventor: SILEBI CESAR A
IPC: B03B5/60
Filed: 1990-03-30
Abstract: Abstract This invention provides an apparatus and method for the complete fractionation of submicron particles according to size by capillary hydrodynamic fractionation.  This objective is achieved by using small diameter capillaries; introducing a minor fraction of a liquid dispersion of particles to be separated into at least one capillary fraction; passing the minor fraction through the capillary; and, at the exit of the capillary, diluting the minor fraction with the same liquid as is carrying the fractionated sample. These modifications in the flow patterns are essential to the use of capillaries with diameters smaller than 60 microns.  This invention is especially adapted for rapid analytical separation of not only rigid colloidal particles but also of soft latexes.
Patent CA-2051846-A1 (CA)
Title: Polyvinyl chloride resin composition for powder molding
Inventor: IGARASHI TOSHIO
IPC: B29L31/58
Filed: 1991-09-19
Abstract: ABSTRACT A  powder  molding  composition  containing  dry-blended polyvinyl chloride resins, plasticizers and stabilizers, which is  characterized  in  that there are blended therein 0.05 to 5 parts by weight of barium salt of a carboxylic acid having a melting point not lower than 250 °C and 0.01 to 5 parts by weight of zinc salt of a fatty acid containing 10 or more carbon atoms, per 100 parts by weight said polyvinyl chloride resins.  The  composition  of  the  invention  is  excellent  in releasability and resistance to mold staining.
Patent CA-2052200-A1 (CA)
Title: Iodine resin/carbon water purification system
Inventor: MAGNUSSON JAN H
IPC: C02F1/00
Filed: 1991-09-25
Abstract: IODINE RESIN/CARBON WATER PURIFICATION SYSTEM               ABSTRACT OF THE INVENTION    Water treatment apparatus including an iodine resin purification bed supported in a walled structure and mounted upstream of an active carbon filtration bed.  In one disposable cartridge construction, a replaceable, torroidal sediment filter surrounds the purification chamber which concentrically projects from the upstream end of a larger diameter active carbon bed.  In another construction, the purification bed includes a directionally permeable, replaceable, pointed housing which insertably mounts within the carbon bed.  In another construction, a portable housing contains a purification bed within a surrounding carbon bed, and receives water from faucet coupling means and includes a nozzle.  In still another personal construction, a purification cartridge mounts between a pressurizable collector and a canteen.
Patent CA-2052730-A1 (CA)
Title: 2-(substituted-dibenzofuranyl and dibenzothienyl) carbapenem antibacterial agents
Inventor: DININNO FRANK P
IPC: A61K31/415
Filed: 1991-10-03
Abstract: TITLE OF THE INVENTION 2-(SUBSTITUTED-DIBENZOFURANYL AND DIBENZOTHIENYL) CARBAPENEM ANTIBACTERIAL AGENTS            ABSTRACT OF THE DISCLOSURE    Carbapenems having the formula:       (I.) -i-where Z is;              or    (A.)                         (B.) where X is O or S(O)0-2; are useful antibacterial agents, especially with respect to activity against methicillin resistant Staphyloccus aureus (MRSA).
Patent CA-2053584-A1 (CA)
Title: Chair seat mounting mechanism
Inventor: AMBASZ EMILIO
IPC: A47C3/026
Filed: 1991-10-16
Abstract: Chair Seat Mounting Mechanism Abstract A chair seat mounting mechanism includes a stationary base member (1) adapted to be mounted on a chair base (3, 4), a seat-mounting member (9) that is adapted to be attached to a chair seat (10) and is rotatably attached to the base member by a pivot shaft (7) and springs (13, 17, 18) acting between the base member and the seat-mounting member and biasing the seat to a neutral position intermediate of a forward tilted position and a rearward tilted position. An intermediate member (12) is pivotally attached to the pivot shaft, and at least one first spring (13) is engaged between the intermediate member and the seat-mounting member such as to bias the seat-mounting member relative to the intermediate member toward the neutral position and to permit the seat to tilt forward against the bias.  At least one second spring (17, 18) is engaged between the base member and the intermediate member such as to bias the intermediate member relative to the base member toward the neutral position and to permit the seat to tilt rearward against the bias.  The pivot shaft is spaced apart a substantial distance from the center of the chair seat in the direction of the front edge of the seat bottom so as to limit the amount of vertical motion of the front edge when the seat tilts forward and backward from the neutral position.
Patent CA-2055715-A1 (CA)
Title: Kit and method for administration of bacillus calmette-guerin
Inventor: RATLIFF TIMOTHY L
IPC: A61K35/74
Filed: 1991-11-15
Abstract: ABSTRACT OF THE DISCLOSURE Improved treatment of superficial bladder tumors through the administration by intravesical instillation of bacillus Calmette-Guerin is realized through the use of  a  therapeutic  composition  comprising  bacillus Calmette-Guerin (BCG) suspended in an 0.85 to 0.90 wt % (i.e. about 0.15 M) sodium chloride solution containing a buffer to maintain the pH of the solution in the range 6.6  to  7.4,  preferably  7Ø   A kit and method are provided whereby such a composition may be employed to maximize  intravesical  attachment of  BCG for  improved efficacy.
Patent CA-2055882-A1 (CA)
Inventor: LEWYN LANNY L
IPC: G06F7/50
Filed: 1991-11-20
Abstract: A first switch (e.g. semi-conductor) becomes conductive when at least one of a pair of binary inputs to be added is a binary "1".  A second switch (e.g. semi-conductor) becomes conductive when there is a carry of a binary "1" from a preceding stage.  The semi-conductors are in series with an output line to provide a particular potential on the output line when the semi-conductors are simultaneously conductive.          This potential is introduced as a binary carry output to a switch in the next stage corresponding to the second switch.          The carry switch in the next stage is an n-channel semi-conductor when the carry switch in the previous stage is a p-channel semi-conductor.  A logical network also produces a signal when both of the binary inputs are a binary "1".  This signal causes a third switch (e.g. semi-conductor) to become conductive and to produce the particular voltage on the output line whether or not the particular voltage is produced on the output line by the operation of the first and second switches.          The voltage on the carry output line is thereafter reset to a second particular value as by a reset signal from a fourth switch (e.g. semi-conductor).  A fifth switch (e.g. semi-conductor) also simultaneously receives a reset voltage to reset the common node between the first and second switches to the particular value.  The first and second switches in the next stage then respectively respond to a binary "1" in at least one of the next pair of binary inputs and to the carry output from the preceding stage in the manner described above.
Patent CA-2056001-A1 (CA)
Title: Building block
Inventor: NAUDE STEPHANUS P
IPC: E04B2/18
Filed: 1991-11-22
Abstract: ABSTRACT            The invention relates to a mortarless interlocking building block. The building block comprises a pair of opposed major side faces, a pair of opposed minor end faces and a pair of opposed major upper and lower faces, the upper or the lower face having a profile, when viewed in a direction normal to the end faces, with an outer semi-channel and an inner full channel alternating with an inner full projection and an outer semi-projection. The semi-channel and the semi-projection are half the width of the full channel and the full projection, and the channels and projections extend longitudinally between the opposed end faces of the block. The opposed lower or upper face of the block is symmetrical about an imaginary axis which extends transversely between opposed side faces to divide the lower or upper face into two equal halves. Each half has a profile, when viewed normal to the major side faces, comprising semi-projection and a full projection alternating with a full channel and a semi-channel, all of which extend transversely between opposed side faces, and which are complemental with the channels and projections on the opposed respective upper or lower face. A pair of apertures extends between the upper and the lower faces, the apertures being divided by an inner web which extends transversely between the opposed side walls of the block parallel to the end walls.
Patent CA-2057216-A1 (CA)
Title: Line check valve
Inventor: NAKAZAWA MASAHIKO
IPC: F16K15/02
Filed: 1991-12-06
Abstract: A line check valve with improved response, reliability, assembly and operation.  The improved line check valve comprises a valve body, a confined valve operation space provided in the valve body and enclosed by an upstream side wall surface in which an inlet passage has an opening mouth and a downstream side wall surface in which an outlet passage has an opening mouth, a ring-shaped static seal surface on the upstream side wall surface, a diaphram which has a movable seal positioned opposite the static seal surface and a seal ring secured to the static seal surface or the movable seal.  The combination of the movable seal and static seal provide improved performance eliminating difficulties in sealing under low pressure, difficulties in adjusting closing spring settings and difficulties with chattering.
Patent CA-2057405-A1 (CA)
Inventor: FLASCH JOHN R
IPC: C09D183/02
Filed: 1991-12-11
Abstract: A low volatile organic content hybrid silica binder, with a total silica content of about 29% to about 42% by weight, suitable for use in the manufacture of zinc-rich primer coating compositions is disclosed. The binder comprises a predominant amount of a silica component derived from the hydrolysis of an organic silicate and a lesser amount of a silica component derived from a silica sol. The solvent component comprises no more than about 75% by weight of an organic solvent having a volatility equal to or greater than the volatility of a C1 to C3 alkyl monohydric alcohol and about 25% by weight or more of a solvent having a lesser volatility than the volatility of a C1 to C3 alkyl monohydric alcohol, with the condition that no more than about 90% by weight of such lesser volatile solvent is a butanol.
Patent CA-2058517-A1 (CA)
Title: Data display radio pager
Inventor: AKAHORI MASAAKI
IPC: G08B5/22
Filed: 1991-12-27
Abstract: A data display radio pager for receiving a digital paging signal including an address codeword made up of an address bit group and function bits following the address bit group, and a message codeword following the address codeword.  A PROM (Programmable Read Only Memory) conventionally incorporated in this type of pager is replaced with an EEPROM (Electrically Erasable Programmable ROM) or similar rewritable memory.  The EEPROM allows address codewords designating the pager and alert mode designation codes associated with function bits to be rewritten, as desired.
Patent CA-2062873-A1 (CA)
Title: Heterocyclic compounds and their production
Inventor: TSUGE OTOHIKO
IPC: C07D309/32
Filed: 1992-03-12
Abstract: ABSTRACT OF THE DISCLOSURE Disclosed is a novel heterocyclic compound selected from the group consisting of the compounds [IV] to [VII], [IX] and [X].  The heterocyclic compound is useful for reactive materials in chemical industry.  A process for producing the heterocyclic compound is also disclosed.
Patent CA-2063742-A1 (CA)
Title: Angiotensin ii antagonists incorporating a nitrogen containing six membered ring heterocycle
Inventor: CHAKRAVARTY PRASUN K
IPC: A61P43/00
Filed: 1992-03-23
Abstract: TITLE OF THE INVENTION ANGIOTENSIN II ANTAGONISTS INCORPORATING A NITROGEN CONTAINING SIX MEMBERED RING HETEROCYCLE            ABSTRACT OF THE DISCLOSURE         There are disclosed compounds, containing a pyridine, pyrazine or pyrimidine functionality on the lower ring of Formula I, which are useful as angiotensin II antagonists.       I
Patent CA-2066252-A1 (CA)
Title: Gelling system
Inventor: SPEIRS CHARLES
IPC: A23L29/238
Filed: 1990-09-26
Abstract: Alginate and/or pectate gels are produced by forming an aqueous mixture of a water soluble or water dispensible alginate and/or pectate, a calcium ion sequestrant and a sparingly soluble calcium ion source at low temperature and heating the mixture to cause gelation thereof. Sequestrant is preferably sodium or potassium pyrophosphate but at least pan of the sequestrant may be replaced by meat having calcium ion sequestring activity. The calcium ion source is preferably calcium sulphate dihydrate.      Preferably the mixture is heated to at least 50 °C to induce gelation.
Patent CA-2066401-A1 (CA)
Title: Safety device for helicopters and similar crafts
Inventor: CARROT LOUIS
IPC: B64C27/00
Filed: 1991-05-17
Abstract: The device comprises an inflatable bag (1) attached to the underside (2.1) of the body of the helicopter (2), its upper portion being shaped to fit the whole of the underside (2.1) of said helicopter. When inflated and ready for use, said bag has the shape of a very large trapezoid and extends well beyond the space occupied by the helicopter itself, increasing the lift polygon. The sides of said bag are provided with anti-buckling reinforcing elements (4), and devices (3) for limiting controlling internal pressure.
Patent CA-2067435-A1 (CA)
Title: Chemically adsorbed film and method of manufacturing the same
Inventor: OGAWA KAZUFUMI
IPC: C09D4/00
Filed: 1992-04-28
Abstract: According to the invention, a fluorine-based or siloxane-based chemical adsorbed film containing a fluorocarbon compound can be formed on a given substrate surface in a laminated state and through chemical bonds (i.e., covalent bonds) with the substrate, it is possible to obtain a laminated film which has satisfactory adhesion to the substrate, is substantially pin-hole free and is very thin.      Further, since the outermost layer may be substituted by fluorocarbon groups or hydroxyl groups, it is possible to obtain a film which has excellent water- and oil-repelling properties or hydrophilic and oil-repelling properties and can replace fluorine-based coating films, thus improving the performance of products requiring a coating having a water-and oil-repelling resistant property, weather-resistant property, wear-resistant property and so forth which are desirable in electric products, vehicles, industrial devices and so forth.