baber/WOPTO huggingface dataset:
Patent WO-03042300-A1 (WO)
Title: Procede servant a preparer des gels
Inventor: MASARO LAURENT
IPC: C08L67/04
Filed: 2002-11-14
Abstract: L'invention concerne la formation d'une crème et d'un gel au moyen d'un biopolymère, tel qu'un polyhydroxyalcanoate (PHA), un polylactide (PLA), un polylactideglycolide (PLGA) et un polyglycoside (PGA), ou un de leurs dérivés, sous forme de latex avec l'apport d'un liant consistant généralement en une entité chimique amphiphile. Un domaine hydrophobe de cette entité chimique amphiphile entre en interaction avec au moins un biopolymère, ce qui constitue un complexe soluble dans l'eau, tandis que le domaine hydrophile de l'entité chimique amphiphile maintient le complexe soluble en suspension dans une solution aqueuse devenant un gel ou une crème suivant un réchauffement approprié. On peut, de ce fait, créer un gel ou une crème polyvalent(e) possédant différentes compositions et textures qu'on obtient en fonction de la nature du liant utilisé et du rapport entre les biopolymères et le liant.
Patent CA-2002568-A1 (CA)
Title: Light-weight construction material as well as a process and installation for manufacturing honeycomb structures from light-weight construction material
Inventor: KRASS PETER
IPC: C08J5/24
Filed: 1989-11-09
Abstract: Abstract Plates of honeycomb structure, that are made, for example, from polyamide paper, are used as core material for sand-wich boards with covering layers of carbon or glass fibre rein-forced plastics or of aluminium.  The new light-weight construction material is to be used for manufacturing honeycomb structures which, in comparison to the known honeycomb structures, are characterized by higher strength and stiffness, improved energy absorption and improved behavior in fire.  The light-weight construction material consists of a fibrous thermoplastic compo-site foil which contains carbon, silicon carbide, whisker or the like fibres in the form of woven fabric, or mats, the fibres being embedded in a matrix of a high temperature thermoplastic such as polyether ether ketone, polyether sulfone or polysulfone.          The sandwich boards with honeycomb cores are used in the field of aeronautics and space travel, mechanical engineering, and in the construction of rail vehicles and watercraft as well as of sport and recreational equipment.
Patent CA-2002603-A1 (CA)
Inventor: WIECZOREK ALFRED B
IPC: H04J3/02
Filed: 1989-11-09
Abstract: ENERGY SAVING PROTOCOL FOR A TDM RADIO     ABSTRACT of the DISCLOSURE      A battery powered TDM (or combined TDM/FDM) communication device (104,105) operates within a TDM communication system (100) having a communication channel arranged into repetitive time frames (401) each having a plurality of slots. At least two of these slots (404) are allocated for communicating signalling and control information. To conserve energy, the battery powered communication device operates in a first mode (i.e., the energy saving mode) to shut down non-essential circuits for a predetermined time interval, awaking to monitor one of the two control slots. In this way signalling and control information may be received. When not operating in the energy saving mode, the battery powered communication device operates in a second mode (i.e., a fast access mode) to monitor at least two of the control slots (404).
Patent CA-2003421-A1 (CA)
Title: Microbicidal/microbistatic composition for industrial use and method of using same
Inventor: HIDAKA YASUHIRO
IPC: A01N43/26
Filed: 1989-11-21
Abstract: ABSTRACT      A microbicidal/microbistatic composition for industrial use which contains 4,5-dichloro-1,2-dithiol-3-one and bromonitrostyrene and a method of killing or inhibiting the growth of microorganisms or controlling slime formation using the composition.
Patent CA-2003561-A1 (CA)
Inventor: KIMOTO YUKITANE
IPC: F02F7/00
Filed: 1989-11-22
Abstract: THERMOPLASTIC COMPOSITE PLATE MATERIAL             AND PRODUCTS MOLDED FROM THE SAME                  ABSTRACT OF THE DISCLOSURE           A thermoplastic composite plate material having a quasi isotropy comprises a thermoplastic resin having a melt viscosity of 1,000-15,000 poise and strip pieces each constructed of unidirectionally orientated reinforcing fibers and each having the specific dimensions of the thickness, the width, the length and the ratio of the width and the length thereof.  The strip pieces are randomly distributed in plane parallel to a surface of the composite plate material.  Since the composite plate material has good quasi-isotropic and high mechanical properties such as flexural strength, flexural modulus and impact strength, the composite product having good quasi-isotropic and high mechanical properties can be obtained by using the composite plate materials.  Moreover, since the composite plate material has a good fittability, a composite product having a complicated shape can be easily molded.
Patent CA-2004125-A1 (CA)
Title: Phosphonate reagent compositions and methods of making same
Inventor: BABLER JAMES H
IPC: C07F9/40
Filed: 1989-11-29
Abstract: ABSTRACT            Novel phosphonate compounds of the formula   are disclosed and claimed, as well as methods for manufacturing the phosphonates from C-14 through C-16 aldehydes.  The phosphonate compounds of the present invention can be employed to form 13-cis-retinoic acid, retin-A and beta-carotene.
Patent CA-2004465-A1 (CA)
Title: Method and apparatus for determining ambient light and surface reflectance
Inventor: FUNT BRIAN V
IPC: G06V10/60
Filed: 1989-12-01
Abstract: METHOD AND APPARATUS FOR DETERMINING          AMBIENT LIGHT AND SURFACE REFLECTANCE                 ABSTRACT OF THE DISCLOSURE           An apparatus for dividing light reflected by an illuminated surface into constituent parts of illuminating light and surface spectral reflectance of the surface. The apparatus  includes  a  receiving  device  for  receiving signals representing measured spectral power distribution Im(.lambda.)  of the light reflected by the illuminated surface. The  apparatus  generates  a weighting  coefficient  .epsilon.i  for each of M illuminant basis functions Ebi(.lambda.) for describing the illuminating light. Weighting coefficients .sigma.j for each of N reflectance basis functions Sbj(.lambda.)  are generated to describe the reflectance of the  surface.   The  apparatus compares an approximation Ia(.lambda.) of the measured spectral power  distribution  Im(.lambda.),  Ia(.lambda.)  being  defined  by  the relation:                        where  the  set of product pairs Ebi(.lambda.)Sbj(.lambda.)  is linearly independent.    Different   weighting   coefficients   are regenerated until said Ia(.lambda.) and said Im(.lambda.) are generally equal.    Signals   representing   at  least  one  of  the constituent parts of illuminating light and said surface spectral reflectance are generated based on the weighting coefficients  .epsilon.i  and .sigma.j  which make  said  Ia(.lambda.)  generally equal to said Im(.lambda.).  The apparatus has an output devise for outputting the signals.
Patent CA-2006565-A1 (CA)
Inventor: BEAUDUCEL CLAUDE
IPC: G01S7/521
Filed: 1989-12-22
Abstract: Capteur de signaux pourvu de moyens de compensation automatique des variations de la pression statique du milieu où il est placé. Il comporte un ou deux ensembles constitués chacun d'un élément sensible piézo-électrique appliqué contre une face d'une plaque flexible. L'autre face de la plaque est soustraite aux variations de la pression dynamique à mesurer par un matériau absorbant les vibrations mais assez souple pour transmettre toute variation de la pression statique ambiante. Ce matériau qui peut être une mousse poreuse ou une substance fibreuse imprégnée de liquide, remplit un manchon tubulaire pourvu d'ouvertures. Réalisation d'hydrophones utilisables dans une large gamme de profondeur d'immersion par exemple.
Patent CA-2011374-A1 (CA)
Title: Method for preparing hard polyurethans and polyisocyanurate foams
Inventor: WALLAEYS BART
IPC: C08L71/02
Filed: 1990-03-02
Abstract: A method for preparing hard polyurethane and polyisocyanurate foams wherein an isocyanate and an active hydrogen containing compound are made to react in the presence of a catalyst, a foam stabilizer and a blowing agent which contains chloropropane, the used foam stabilizer being mainly of the non silicon type.
Patent CA-2012506-A1 (CA)
Inventor: RAVICHANDRAN RAMANATHAN
IPC: C07D239/04
Filed: 1990-03-19
Abstract: Compounds which contain an azo group as well as a hindered amine light stabilizer moiety of low basicity function as free radical polymerization initiators and provide a polymer containing a hindered amine stabilizer chemically bonded to said polymer. The low basicity of the instant compounds prevents interaction with acid catalysts used in some polymerization systems. The compounds have the formula I      E1-N=N-E2 (I) where E1 is a radical of the formula (see formula I or II) wherein R1 and R2 are, for example, C1-C36 alkyl, G1 and G2 are, for example, C1-C4 alkyl, T is, for example, formyl, and E2 may be the same as E1 or may be, for example, C1-C36 alkyl, with the proviso that at least one of E1 and E2 comprises the moiety (see formula I)
Patent CA-2013019-A1 (CA)
Inventor: SPRANGER DOUGLAS M
IPC: A61M1/36
Filed: 1990-03-26
Abstract: A  reservoir  with  outlet  control  device  for controlling fluid flow from a reservoir.  The device is particularly suitable for controlling fluid outflow from a blood collecting and blood delivery reservoir.
Patent CA-2013117-A1 (CA)
Inventor: OKUMURA HIROSHI
IPC: G05B19/423
Filed: 1990-03-27
Abstract: ABSTRACT OF THE DISCLOSURE         A direct teaching type robot has a moving arm driven by an electric motor.  The moving arm is directly moved to previously stored data corresponding to the movement of the moving arm in a robot controller and when operated as the robot, the moving arm is operated on the basis of the stored data.  Power lines for the electric motor are cut off in a teaching mode in which movement positions of the moving arm are taught in the robot.
Patent CA-2015475-A1 (CA)
IPC: A61K31/19
Filed: 1990-04-26
Abstract: The present invention discloses a method for treating a patient sufffering from osteoarthritis comprising administering a physiologically effective amount of pharmaceutical composition; and a pharmaceutical composition for treating osteoarthritis; said both compositions containing at least one compound, as an active ingredient, represented by the formula (I)                      (I) wherein R represents a hydrogen atom or an acyl group; X represents a CHO group, a COOH group, a physiologically acceptable salt thereof or a CH(OR')2 group wherein R' represents an acyl group.
Patent CA-2015748-A1 (CA)
Title: Suction insect eradicator
Inventor: SZYNAL JAMES M
IPC: A01M17/00
Filed: 1990-04-30
Abstract: SUCTION INSECT ERADICATOR               ABSTRACT OF THE DISCLOSURE         A vacuum apparatus is disclosed for mechanically removing and destroying insects and related pests from low growing crops. In the preferred embodiment, the apparatus is affixed to a three-point hitch and power takeoff of a standard farm tractor and comprises a dual fan assembly connected by forced air ducts and suction hoses to a plurality of suction shoes. One of the fans forces air through ducts to individual intakes on the shoes, where the air is directed through manifolds down to oppositely aligned blast channels on the lower edges of plant tunnels. These channels lead the forced air current up toward pest receiving outlets in the top center of the interior of each tunnel. Suction hoses, leading from the other fan, apply a partial vacuum to expansion compartments located directly above the pest receiver outlets.          In operation, the eradicator is lowered over parallel rows of plants until the plant tunnels enclose subject plants. As the tractor moves along the rows, forced air is emitted from the blast channels of the suction shoes. It creates an agitating suction current throughout the leaf canopy of each enclosed plant, forcing insects off the plant. Suction draws the pests out of the shoes and into the fan assembly, whereupon they are disintegrated by the spinning blades and discharged back into the plant environment.
Patent CA-2016528-A1 (CA)
Title: Battery system
Inventor: SOKIRA THOMAS J
IPC: G01R31/36
Filed: 1990-05-10
Abstract: A battery system includes a battery pack having a plurality of batteries and electronic circuitry for monitoring battery parameters and producing an analog output signal related to the state of the charge in the batteries. An attachment is detachably mounted on the battery pack and produces a display indicating the state of charge in the batteries using the analog output signal from the battery pack. The attachment which includes a bracket and a display unit also serves as connector for connecting the battery pack to the device which is to be powered by the battery pack. <IMAGE>
Patent CA-2016974-A1 (CA)
Title: Coating method for encapsulation of particulate matter
Inventor: PASZNER LASZLO
IPC: C04B20/10
Filed: 1990-05-19
Abstract: COATING METHOD FOR ENCAPSULATION              OF PARTICULATE MATTER             ABSTRACT OF THE DISCLOSURE        Particulate and fibrous materials are encapsul-ated with a monolithic coating of controlled thickness through a multiple step simple rapidly bonding process by first treating the particulate material with an acid phosphate and particularly with sequestered ammonium polyphosphate or superphosphoric acid and a powdered mineral solid of the magnesium alkali earth metal oxide carbonate or silicate type capable of reacting with the said acid phosphate inagranulator drum or spraying pro-cess.  Deposition of an excess amount of phosphate solu-tion on the particulate surfaces leads to well bonded encapsulated products.  The process can be accelerated by heating either of the reactive components to 100°          Centigrade and by the use of magnesium oxide heavy powder, calcined dolomite, magnesite, olivin, serpentine or marble powder in leu of dead burned magnesium oxide in combination with powdered raw dolomite, magnesite, olivin, serpentine or marble.  The process can be repeated until the desired coating thickness is achieved.
Patent CA-2017217-A1 (CA)
Title: Amino acid derivative anticonvulsant
Inventor: KOHN HAROLD L
IPC: C07D333/60
Filed: 1990-05-18
Abstract: The present invention relates to compounds exhibiting central nervous system (CNS) activity which are useful in the treatment of epilepsy and other CNS disorders. The compounds of this invention have the following general formula:    and pharmaceutically acceptable salts thereof wherein R is aryl, aryl lower alkyl, heterocyclic or heterocyclic lower alkyl, wherein R is unsubstituted or is substituted with at least one electron withdrawing group of an electron donating group;      R1 is hydrogen or lower alkyl and R1 is unsubstituted or is substituted with at least one electron withdrawing substituent or at least one electron donating substituent;      R2 and R3 are independently each hydrogen, lower alkenyl, lower alkynyl, aryl lower alkyl, aryl, heterocyclic, heterocyclic lower alkyl or Z-Y, wherein R2 and R3 may be unsubstituted or substituted with at least one electron withdrawing group or electron donating group;      Z is O, S, NR4, PR4 or a chemical bond;      Y is hydrogen, lower alkyl, aryl, aryl lower alkyl, lower alkenyl, lower alkynyl, or halo, and Y may be unsubstituted or substituted with at least one electron donating group or electron donating group; provided that when Y is halo, Z is a chemical bond or ZY taken together is NR4NR5R6, NR4OR5, ONR4R5, OPR4R5, OPR4R5, PR4OR5, SNR4R5, NR4SR5, SPR4R5, PR4SR5, NR4PR5R6 or PR4NR5R6, R4, R5 and R6 are independently hydrogen, lower alkyl, aryl, aryl lower alkyl, lower alkenyl, lower alkynyl, and R4, R5 and R6 may be unsubstituted or substituted with an electron withdrawing group or an electron donating group and n is 1-4.
Patent CA-2019565-A1 (CA)
Title: Heat treatment of metals
Inventor: FRANKS ROBERT
IPC: C21D1/76
Filed: 1990-06-21
Abstract: ABSTRACT                           HEAT TREATMENT OF METALS   A metal less readily oxidisable than iron is annealed in an atmosphere that is formed by separating (in for example a pressure swing adsorption apparatus 2) nitrogen from air to form a gas mixture comprising at least 95% by volume of nitrogen and a minor proportion of oxygen impurity, and then reacting the oxygen impurity with hydrogen in a catalytic reactor 4. The resulting atmosphere, which is admitted to an annealing furnace 6, comprises nitrogen, hydrogen and water vapour.
Patent CA-2020414-A1 (CA)
Inventor: WERMELINGER JORG
IPC: F16L47/02
Filed: 1990-07-04
Abstract: The inner pipes (2a, 2b) of a double pipe system are fixedly connected to a collar (3) by welding or bonding. In order to retain the inner pipes (2a, 2b) by means of clamping jaws (4a, 4b) when producing the collar connection, the outer pipes (1a, 1b) are constructed shorter, at least by the thickness of the two clamping jaws (4a, 4b). In order to bridge this gap, an expandable intermediate ring (9, 9a) is inserted during the connection of the outer pipes (1a, 1b) by means of an electrically welded sleeve (7). 
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Patent CA-2023825-A1 (CA)
Title: Aqueous aldehyde solutions for trapping hydrogen sulfide
Inventor: HOFFMANN HERMANN
IPC: B01D53/14
Filed: 1990-08-22
Abstract: Abstract Aqueous aldehyde solutions for trapping hydrogen sulfide Aqueous aldehyde solutions for trapping hydrogen sulfide, containing 5 to 50% by weight of an aldehyde and addi-tionally 1 to 5% by weight, relative to the aldehyde solution, of a formulation comprising a)   10 to 80% by weight of a long-chain quarternary ammonium compound and 20 to 90% by weight of water or of a C1-C4 alcohol, b)   10 to 80% by weight of an ester of oxalkylated alkylalkylenediamines, which may be quaternized and 20 to 90% by weight of water or of a Cl-C4-alcohol, c)   10 to 80% by weight of a condensation product of a C12-C18-fatty acid with a polyethylene polyamine of the formula NH2- (C2H4-NH)x-C2H4-NH2 in which x is 1, 2 or 3 and the molar ratio of fatty acid to basic nitrogen in the polyethylene polyamine is 3 : 1 to 3 . 2, and 20 to 90% by weight of water or of a Cl-C4-alcohol, or d)   50 to 95% by weight of the fatty acid-polyethylene polyamine condensation product as defined in c) and 5 to 50% by weight of a nonionic or anionic surfact-ant.
Patent CA-2026944-A1 (CA)
Title: Ceramic welding process and lance for use in such process
Inventor: ROBYN PIERRE
IPC: C03B5/43
Filed: 1990-10-04
Abstract: ABSTRACT                 CERAMIC WELDING PROCESS AND LANCE FOR USE IN SUCH PROCESS       A ceramic welding process which facilitates the formation of high quality erosion-resisant and corrosion-resistant refractory weld masses comprises projecting against a surface (1) an oxidisable mixture of refractory particles and particles of a fuel material in a carrier gas (7) which contains at least sufficient oxygen for substantially complete oxidation of the fuel particles, whereby sufficient heat is released for at least surface melting of the projected refractory particles and a ceramic weld mass is formed against said surface (1) under the heat of oxidation of the fuel particles, wherein at least one additional stream of gas (9) is projected against said surface (1) so as to form a substantially continuous gas curtain surrounding said carrier gas stream(s).     The invention also provides apparatus to effect the ceramic welding process, comprising a lance (5) having a first outlet (6) for the discharge of such ceramic welding powder in a carrier gas (7) along a discharge path towards the surface (1), and a second outlet (8) for the discharge of gas to form the substantially continuous gas curtain.
Patent CA-2026958-A1 (CA)
Title: Methods of and apparatus for coating optical fibers
Inventor: EDMONSTON DON R
IPC: C03C25/223
Filed: 1990-10-04
Abstract: An optical fiber (24), destined to receive a hermetic coating (32), is moved through a hermetic coating apparatus (30) wherein the fiber, entering the hermetic coating apparatus at a predetermined temperature, is caused to be engaged by a reactive gas. The reactive gas, reacting with the heated fiber, is effective to cause a layer of a hermetic material to be deposited adjacent to the outer surface of the fiber. A cross-flow purge gas is effective to prevent a resultant accumulation of a soot comprising reactive components of the reactive gas adjacent to portions of the hermetic coating apparatus which become heated by the fiber. Failure to prevent the accumulation of the soot may lead to fiber abrasions and reduced fiber strength.
Patent CA-2029787-A1 (CA)
Title: Method for preparation of taxol using an oxazinone
Inventor: HOLTON ROBERT A
IPC: C07C233/83
Filed: 1990-11-13
Abstract: Process for the preparation of a taxol intermediate comprising contacting an alcohol with an oxazinone having the formula:   (see formula 1) wherein R1 is aryl, heteroaryl, alkyl, alkenyl, alkynyl or OR7 wherein R7 is alkyl, alkenyl, alkynyl, aryl or heteroaryl; R2 and R5 are independently selected from hydrogen, alkyl alkenyl, alkynyl, aryl, heteroaryl, and OR8 wherein R8 is alkyl, alkenyl, alkynyl, aryl, heteroaryl, or hydroxyl protecting group; and R3 and R6 are independently selected from hydrogen, alkyl, alkenyl, alkynyl, aryl and heteroaryl.
Patent CA-2030770-A1 (CA)
Title: Thrombolytic agents
Inventor: NAKANISHI KOICHIRO
IPC: A61K38/46
Filed: 1990-11-23
Abstract: Abstract of the disclosure:      There are provided thrombolytic agents suited for oral administeration. The agent comprises a proteolytic enzyme of subtilisin family, such as subtilisin BPN', subtilisin Carsberg, subtilisin amylosacchariticus, etc., produced by microorganisms belonging to genus Bacillus, such as Bacillus subtilis, Bacillus lincheniformia Bacillus amyloliquefaciens, etc. and, even when administered orally, exhibits thrombolytic activity.
Patent CA-2030857-A1 (CA)
Title: Rotary drill bits
Inventor: BARR JOHN D
IPC: E21B10/43
Filed: 1990-11-26
Abstract: ABSTRACT           "Improvements in or relating to rotary drill bits"      A rotary drill bit comprises a bit body having a shank for connection to a drill string and a passage for supplying drilling fluid to the face of the bit, which carries a plurality of polycrystalline diamond preform cutting elements.  The cutting elements are mounted on a single radially extending blade so that the bit is imbalanced and a resultant sideways force is applied to the bit as it rotates during drilling.  The gauge of the bit body is provided with a low friction bearing pad which extends rearwardly of the blade and transmits the resultant sideways force to the sides of the bore hole.  Since the bearing pad is low friction, it slides around the surface of the formation and any tendency for bit whirl to be initiated is reduced.
Patent CA-2031892-A1 (CA)
Title: Triazole derivatives
Inventor: TOKIZAWA MINORU
IPC: C07D249/08
Filed: 1990-12-10
Abstract: A triazole derivative is disclosed. The compound has the general formula:   (see formula I) wherein R1 and R2 represent a hydrogen atom or a lower alkyl group, or R1 and R2 together form a lower alkylene group, R3 represents a lower alkyl group, and n denotes an integer of 0 to 2, provided that not both R1 and R2 are a hydrogen atom at the same time. The triazole derivatives and their salts are effective for curing or preventing deep-seated mycoses, e.g. mycotic meningitis, mycotic infectious diseases of respiratory organs, fungemia, and urinary tract mycosis.
Patent CA-2034110-A1 (CA)
Title: Perfume bottle
Inventor: SOMOGYI STEPHENS
IPC: A45D34/00
Filed: 1991-01-14
Abstract: Abstract A vessel containing the perfume is placed in an accommo-dating space 7 in an outer case consisting of two half shells 1, 2 articulated one upon the other. A cap 3 ensures both that the vessel is tightly closed and that the case is locked in a closed position.