baber/WOPTO huggingface dataset:
Patent CA-2020411-A1 (CA)
IPC: H03H9/02
Filed: 1990-07-04
Abstract: ABSTRACT OF THE DISCLOSURE     A  surface  acoustic  wave  device  includes  a substrate which is made up of single-crystalline dielectric member and a piezoelectric thin film epitaxially grown thereon.  An aluminum electrode defining an interdigital electrode  is  formed  along  the  interface  between  the dielectric member and the piezoelectric thin film.   This aluminum electrode is formed of an aluminum film which is crystallographically oriented  in  a  constant direction, whereby  stressmigration  of  the  aluminum  electrode  is suppressed  while  enabling  epitaxial  growth  of  the piezoelectric thin film over the entire surface insert.
Patent CA-2020872-A1 (CA)
Inventor: INABA TSUTOMU
IPC: H04M1/00
Filed: 1990-07-11
Abstract: ABSTRACT OF THE DISCLOSURE     Such a radio telephone system as a car telephone system that a party being asked to hold on can prompt a user of the system to release a hold state set by the user.  When a predetermined time elapses after setting of the hold state during speech but the hold state is not released, an audible tone signal can get ready for being issued from the party side.   Under this condition,  if the party speaks to the user then the party's voice can be output at the side of the user, thus prompting the user to release the hold state.  In addition,  since party's voice is output at the user side only after passage of the predetermined time, the user can feel the party's voice less noisy.
Patent CA-2021326-A1 (CA)
Title: Nonionically and partially anionically stabilized water-dispersible polyurethane/acrylic graft copolymers
Inventor: BALATAN SERGIO E
IPC: C09D5/02
Filed: 1990-07-17
Abstract: Water-dilutable polyurethane/acrylic copolymers which may be either completely nonionically stabilized or partically nonionically and partically anionically stabilized comprise the reaction product of an ethylenically terminated polyurethane macromonomer containing poly(oxyalklyene) segments and one or more ethylencially unsaturated monomers selected from acrylic acid, methacruylic acid, fumaric acid, styrene, vintyltoluene, and alkyl and hydroxyalkyl esters of acrylic, methacrylic, and furamic acids. The copolymers are useful as principal resins and as pigment grind resins in water-borne automotive base coat paint formulations.
Patent CA-2022636-A1 (CA)
Title: 2,4-pentanedione-1,5-disulfonic acid and method for preparing the same
Inventor: SANDLER STANLEY R
IPC: C07C309/05
Filed: 1990-08-03
Abstract: 2,4-PENTANEDIONE-1,5-DISULFONIC ACID  AND METHOD OF PREPARING THE SAME             Abstract of tbe Disclosure 2,4-pentanedione-1,5-disulfonic acid is prepared by reacting chlorosulfonic acid with 2,4-pentanedione with heating to a temperature greater than about 50°C, preferably in the presence of an anhydrous solvent.  The method of this invention generally yields 2,4-pentanedione-1,5-disulfonic acid in excess of about 60 percent.  The novel pentanedionedisulfonic acid (2,4-pentanedione-1,5-disulfonic acid ?acetylacetone disulfonic acid) is disclosed.
Patent CA-2022899-A1 (CA)
Title: Soil conditioners
Inventor: PIEH STEFAN
IPC: C09K17/00
Filed: 1990-08-08
Abstract: Method of conditioning soils, in which copolymers which are composed of acrylamide and/or methacrylamide, a sulphonyl-containing, substituted acrylamide or meth-acrylamide, a multi-functional, water-soluble vinyl compound and, if appropriate, carboxyl-containing co-monomers are added to the soils as soil conditioners.
Patent CA-2023935-A1 (CA)
Title: Method and apparatus for simulating a factory system
Inventor: JUDD ROBERT P
IPC: G06F17/50
Filed: 1990-08-24
Abstract: A method and apparatus are disclosed which allows a plurality of dissimilar simulation systems to act in a cooperative manner such that they may act to provide a single overall simulation of a system. The system to be simulated is partitioned into these simulation systems and subsequently these systems are networked and synchronized. This interaction of these dissimilar simulation systems is accomplished by a simulation tool which allows a simulation system to route messages to other systems, synchronizes the operation of all simulation systems, allows partitioning elements to be stored and downloaded to these systems, and allows each simulation system to utilize its own native programming language during the creation of the single system simulation associated therewith.
Patent CA-2024349-A1 (CA)
Title: Process for separating off enol ethers from reaction mixtures containing alcohols
Inventor: MILDENBERGER HILMAR
IPC: C07C31/04
Filed: 1990-08-30
Abstract: Abstract of the disclosure Process for separating off enol ethers from reaction mixtures containing alcohols The invention relates to a gentle process for the separa-tion of enol ethers  from mixtures containing water-soluble  alcohols  by  extraction,  wherein  an  aqueous solution of a base is used as the extraction agent in a phase ratio of the amounts of the aqueous phase : enol ether/alcohol mixture of at least 0.5 : 1 and the extrac-tion is carried out in several stages or continuously with a theoretical number of stages of at least two.  The process is particularly suitable for separating off enol ethers which readily decompose during distillation.
Patent CA-2024456-A1 (CA)
Title: Process for producing 4-halogeno-2-alkoxyimino-3-oxo fatty acid
Inventor: TANI TSUTOMU
IPC: C07C249/12
Filed: 1990-08-31
Abstract: ABSTRACT OF THE DISCLOSURE 4-Halogeno-2-alkoxyimino-3-oxo fatty acid can be produced by one-pot and one-step by reacting a halogenating agent with a 2-alkoxyimino-3-oxo fatty acid ester in an ether solvent or a mixed solvent of an ether solvent and an inert organic solvent such as carbon tetrachloride, benzene, toluene, etc.
Patent CA-2024982-A1 (CA)
Inventor: FUJI HIROSHI
IPC: G11B20/10
Filed: 1990-09-10
Abstract: An information-reproducing device in accordance with the present invention has at least a differentiating zero-cross detection circuit that differentiates analog-reproduced signals detected when a light beam is irradiated on an information-recording medium whereon information is digitally recorded. The detection circuit generates differentiated signals, and generates binary zero-cross signals by comparing the differentiated signals and its zero level. A gate generating circuit generates binary gate signals in accordance with the variation of the analog-reproduced signals. A flip-flop generates binary-reproduced signals based on a comparison of the zero-cross signals and the gate signals, and an equalizer emphasizes the high-frequency components of the analog-reproduced signals. Provision is made that the equalizer is installed ahead of the gate generating circuit. The equalizer thus generates gate signals that correspond accurately to the variation of the analog-reproduced signals, thereby permitting data recorded on the information-recording medium to be reproduced accurately.
Patent CA-2026982-A1 (CA)
Title: Injection molding apparatus for slide fastener chain
Inventor: AKASHI SHUNJI
IPC: B29C45/14
Filed: 1990-10-04
Abstract: Abstract of the Disclosure Continuous injection molding apparatus for slide fastener chains. According to a preferred embodiment, this apparatus comprises single stationary mold and two movable molds. The stationary mold is provided with a sprue contacted with a nozzle of an injection cylinder. These three molds are disposed so that the opposed parting planes of the three molds are parallel each other. Then, the sprue is communicated with each row of cavities, through each runner or through each runner and each path. The fastener tapes are transported intermittently in spaces formed between the molds respectively in a longitudinal direction. The molten material is shot from the injection cylinder to the sprue and is injected into the rows of cavities between two molds of these three molds through the runner or through the runner and the path respectively. Then, the pairs of rows of fastener elements are molded from the molten material in the rows of cavities and attached simultaneously to the beaded edges. As a result, the plural number of slide fastener chains can be produced by one-shot injection with this apparatus having a normal area of longitudinal cross section.
Patent CA-2027123-A1 (CA)
Title: Metallocene catalysts for polymerization of olefins
Inventor: ELDER MICHAEL J
IPC: C08F4/6392
Filed: 1990-10-09
Abstract: This invention uses a new method of producing ionic metallocene compounds. These compounds are useful as catalysts for polymerization of olefins, primarily propylene. This method uses an ionizing agent which ionizes the neutral metallocene compound. The ionizing ionic compound does not contain an active proton and contains a carbonium, oxonium or sulfonium cation. The anion of the ionizing ionic compound is not coordinated or is only loosely coordinated to the metallocene cation and is chemically unreactive with the metallocene cation.   One such compound is triphenylcarbenium tetrakis(pentafluorophenyl)boronate.     The process of making catalysts with this invention produces catalysts having high activity and does not produce by-products which can inhibit catalyst activity.      This new synthesis is a clean reaction which does not produce a Lewis base. The process generates active catalysts by removing a methyl anion from a group IV metallocene derivative.
Patent CA-2029047-A1 (CA)
IPC: A61K47/32
Filed: 1990-10-31
Abstract: This invention relates to compositions/devices and methods for treating diseases of the oral  cavity in humans and lower animals   using   polypropenoic   acid   compositions/devices  for releasing drugs in the oral cavity.
Patent CA-2029383-A1 (CA)
Title: Swelling modulated polymeric drug delivery device
Inventor: MCCLELLAND GREGORY A
IPC: A61K9/22
Filed: 1990-11-06
Abstract: A controlled release drug delivery device, comprised of swellable polymers, whose degree of swelling in an environment of use is controlled by swelling modulators blended within the polymers, is disclosed. The swelling modulators can include buffers, osmagents, surfactants or combinations thereof surrounded by a microporous coating or interspersed within individual matrices. The combination of controlled release swelling modulators with swellable polymers may be applied to regulate patterns of beneficial agent (typically a drug) release.
Patent CA-2030397-A1 (CA)
Title: 1-aryl-1-hydroxy-1-substituted-3-(4-substituted-1- piperazinyl)-2-propanones and their use in treatment of neurogenic bladder disorders
Inventor: MCPHERSON DANIEL W
IPC: C07D295/104
Filed: 1990-11-20
Abstract: Compounds are disclosed having the formula (I): <CHEM>  in which   R1   is a C1 to C12 alkyl, said alkyl being straight or branched chain, saturated or unsaturated, monosubstituted or unsubstituted, said substituents being selected from piperidine, pyrrolidine, morpholine, thiomorpholine or cycloalkyl of 3 to 7 carbons, a cycloalkyl of 3 to 9 carbons, a lower alkylcycloalkyl of 4 to 9 carbons, or a polycycloalkyl of 2 to 3 rings containing 7 to 12 carbons; R2   is hydrogen, phenyl, phenyl singly or multiply substituted with halogen, hydroxy, lower alkoxy, methylene dioxy, nitro, lower alkyl or trifluoromethyl, lower alkyl, said alkyl being branched chain or straight, saturated, unsaturated, or cyclic and substituted or unsubstituted, said substituents being selected from thienyl, pyrrolyl, pyridyl, furanyl, hydroxy, lower alkoxy, or acetoxyalkyl wherein the alkyl group has 1 to 3 carbons, phenyl, phenyl substituted with halogen, hydroxy, lower alkoxy, lower alkyl, nitro, methylene dioxy or trifluoromethyl, Ph   is phenyl or phenyl para-substituted by halogen, lower alkyl, lower alkoxy or trifluoromethyl; and the pharmaceutically acceptable nontoxic salts thereof. The preparation of the compounds, pharmaceutical compositions containing them and their use in the treatment of neurogenic bladder disorder are also enclosed.
Patent CA-2031491-A1 (CA)
Title: Mixed alkoxylated alcohol-hydroquinone/resorcinol borates-antioxidants
Inventor: ERNHOFFER ROBERT E
IPC: C10M169/06
Filed: 1990-04-30
Abstract: Mixed alkoxylated alcohol-hydroquinone or alkoxylated alcohol-resorcinol borates are effective antioxidants for lubricants.
Patent CA-2033908-A1 (CA)
Inventor: PREVOT GERARD
IPC: E05C9/00
Filed: 1991-01-10
Abstract: The espagnolette lock comprises:   - operating rods (4) capable of being actuated by an internal operating member (6) and an external operating member (7);   - a half-turn latch (12); - a fixed latch (14) which can be operated by means of the key element (13).   This espagnolette lock is characterised in that the operating members (6, 7) act on the same door knob hole (5) and cooperate with each other on the one hand through one or two square operating holes (15, 16) and, on the other hand, by the intermediary of coupling means (18) capable, on the one hand, of limiting the angular displacement of the external operating member (7) to an amplitude (A1) such that it is possible for it to ensure the displacement only of the operating rods (4) and, on the other hand, for it to allow the rotation of the operating member (6) through an angle (A2) greater than (A1) in such a way as to allow it the control, successively, of the said operating rods (4) and of the half-turn latch (12). <IMAGE>
Patent CA-2036751-A1 (CA)
Inventor: YOSEFI HANAN
IPC: B41M1/14
Filed: 1991-02-20
Abstract: A method of processing a file of recorded color separation values of color elements for use in preparing polychromatic printing plates in order to reduce or eliminate defects caused by misregistration by printing, includes the steps:  (a) defining a plurality of predetermined color types;  (b) identifying the color pairs where there is a change in color between adjacent color elements; and (c) for each color pair, determining whether or not to make a frame according to first predetermined criteria based on specific combination of color types in the pair, and then according to second predetermined criteria based on the difference in luminance between corresponding color separations in the respective pair.  For those color pairs in which a frame is to be generated, the location of the frame is determined according to third predetermined criteria based on specific combinations of color types in the pair, and then according to fourth predetermined criteria based on the sum of the luminances of each color in the color pair.
Patent CA-2038361-A1 (CA)
Title: Ballast distributing and planing machine
Inventor: THEURER JOSEF
IPC: B65G15/00
Filed: 1991-03-15
Abstract: A ballast distributing and planing machine comprises an elongated machine frame supported on the track by undercarriages for mobility along the track in an operating direction, a ballast broom extending transversely across the track and mounted on the machine frame at a rear end thereof in the operating direction, and a ballast plow arrangement mounted on the machine frame. A ballast storage container is mounted on the machine frame and has at least one discharge opening enabling ballast stored in the container to be discharged onto the track, and a ballast discharge conveyor band is mounted immediately below each discharge opening and is arranged to close the opening, each conveyor band having a drive for moving the conveyor band in a conveying direction.
Patent CA-2039030-A1 (CA)
Title: Microorganisms and process for producing biotin vitamers using the same
Inventor: KISHIMOTO JIRO
IPC: C12N15/52
Filed: 1991-03-26
Abstract: A mutant strain having a glucose consumption rate is at most 1/4 that of wild type strains is provided.      The mutant strain belongs to Escherichia, Bacillus, Pseudomonas, or Serratia; has a glucose consumption rate of at most one fourth that of the corresponding wild type strain, and the feedback repression by biotin is removed. Further, a process for producing biotins using this mutant strain is provided.
Patent CA-2039340-A1 (CA)
Title: Selective production of diethylenetriamine and aminoethylethanolamine
Inventor: DOUMAUX ARTHUR R JR
IPC: C07C209/16
Filed: 1991-03-28
Abstract: SELECTIVE PRODUCTION OF DIETHYLENETRIAMINE               AND AMINOETHYLETHANOLAMINE                         Abstract This invention relates to a process for making amines having a high yield weight percent of diethylenetriamine (DETA) and aminoethylethanolamine (AEEA) by condensing an amino compound in the presence of a condensation catalyst selected from a Group IVB metal oxide, a Group VIB metal-containing substance and a promoted condensation catalyst.          This invention also relates to an alkyleneamines producers composition rich in DETA and AEEA.
Patent CA-2040205-A1 (CA)
IPC: A63B37/00
Filed: 1991-04-10
Abstract: The present invention relates to a golf ball having one great circle  and four one-half great  circles intersecting no dimples in which eight end points including of two end points of  each one-half great circle do not coincide with each other on said great circle, one of said one-half great circles intersecting the other one-half great circle at a right angle at the middle point thereof on each side of said great circle.
Patent CA-2040393-A1 (CA)
Title: Roller and ball bearing bearing isolator
Inventor: DAMON GERALD D
IPC: F16C27/04
Filed: 1991-04-15
Abstract: ABSTRACT OF THE DISCLOSURE          A bearing isolator assembly (70) suitable for use with straight roller and with ball bearings (20) is provided.  The bearing isolator assembly comprises a retaining member (72) a radial wave spring (74), and a nonresilient bump stop member (130), all preferably of a one-piece steel construction.
Patent CA-2040719-A1 (CA)
Title: Liquid hair cosmetic applicator
Inventor: KIMURA MASARU
IPC: A45D34/04
Filed: 1991-04-17
Abstract: LIQUID HAIR COSMETIC APPLICATOR                  ABSTRACT OF THE DISCLOSURE        A liquid hair cosmetic applicator comprising a comb body mounted to a front shaft with an applying member and a teeth portion of the comb body being arranged parallel to said-applying member, characterized in that on the outer surface of a portion of the comb body engaging with the front shaft there are provided protruding ribs lying in the direction perpendicular to the direction drawing the comb body out of the front shaft.
Patent CA-2041422-A1 (CA)
Title: .alpha.-glycosyl naringin, and its preparation and uses
Inventor: YONEYAMA MASARU
IPC: A23L29/00
Filed: 1991-04-29
Abstract: Abstract of the Disclosure .alpha.-Glycosyl  naringin,  a  novel  naringin  derivative wherein  equimolar  or more  D-glucose residues  are  bound  to naringin via the .alpha.-bond, is formed by a saccharide-transferring enzyme  in  a  liquid  containing  naringin  and  .alpha.-glucosyl saccharide.  The .alpha.-glycosyl naringin is easily recovered from the  reaction  mixture  with  a  synthetic  macroporous  resin.          .alpha.-Glycosyl naringin, which retains the bitterness inherent to naringin,  is superior in water-solubility, free of toxicity, and readily hydrolyzable in vivo into naringin and D-glucose to exhibit the physiological activity inherent to naringin.  Thus, .alpha.-glycosyl naringin is favorably usable in vitamin P-enriching agents,   foods,   beverages,   tobaccos,   foods,   pet   foods, pharmaceuticals for susceptive diseases,  cosmetics and plas-tics.
Patent CA-2042659-A1 (CA)
Title: Heat curable adhesive
Inventor: STUART DAVID V
IPC: C08G59/62
Filed: 1991-05-15
Abstract: ABSTRACT              "HEAT CURABLE ADHESIVE"          The present invention relates to an improved heat curable epoxy resin adhesive in which a metal oxide, for example zinc oxide, and a polyhydroxyaryl compound, for example gallic acid, are used in combination with an epoxy resin, for example a heat curable liquid epoxy resin adhesive, to give an adhesive composition having significantly improved binding strength and resistance to weathering.          The epoxy resin adhesive composition of the invention has been found to be particularly advantageous in the bonding of metal surfaces providing higher bond strength over a prolonged period and improved resistance to the deterioration of bond strength in the presence of water or high humidity.
Patent CA-2043608-A1 (CA)
Title: Ornamental game with underwater moving mechanism
Inventor: KASHIMOTO KIYOSHI
IPC: A63F7/04
Filed: 1991-05-30
Abstract: ABSTRACT OF THE DISCLOSURE    An ornamental game includes a transparent tank preferably having three sides.  A fluid contained in and substantially filling the transparent tank is circulated in a direction rearward to forward by means of a rising fluid path.  A plurality of movable members, each having a specific gravity slightly greater than that of the fluid are propelled upwardly in the rising fluid path by the rising current of fluid and are discharged from the open top of the partition plate, and a target mounted on an ornamental body disposed in front of the partition plate below the top thereof in the circulatory flow path of fluid catches the movable members on the target.
Patent CA-2043678-A1 (CA)
Title: Method for processing signals for signal transmission in the base band
Inventor: PFEIFFER JOHANN
IPC: H04L1/20
Filed: 1991-05-31
Abstract: ABSTRACT            The present invention relates to a method for processing signals for signal transmission in the base band on a two-wire line, by using a modem.  In order to reduce coupling to adjacent channels in the two-wire line, and to reduce effective line attenuation, it is proposed that the signal that is to be transmitted in a process of the above type be encoded such that each three transmit bits are combined to form a tri-bit, and one of eight discriminable sender levels for a main data channel are associated to each tri-bit, whereby the modulation rate of the symbols on the line is reduced to one-third of the bit rate.
Patent CA-2045728-A1 (CA)
Title: Syndiotactic crystalline copolymers of propylene
Inventor: GALIMBERTI MAURIZIO
IPC: C08F4/659
Filed: 1991-06-26
Abstract: ABSTRACT            Essentially syndiotactic crystalline copolymers of propylene with  minor  proportions  of  1-butene,  endowed with  good mechanical  properties,  lowered melting point  and  limited solubility  in xylene  at  25°C and the process  for their preparation by polymerizing mixtures of propylene with 1-butene, by using catalysts obtained from stereorigid and chiral zirconium and hafnium compounds and from polymethylalumoxane compounds.
Patent CA-2047345-A1 (CA)
Inventor: MARLIER GERY
IPC: H01B11/22
Filed: 1991-07-18
Abstract: Câble sous-marin de télécommunications à fibres optiques sous tube. Le câble à fibres optiques noyées dans un matériau de remplissage du tube, lui-même intérieur à un toron de fils métalliques à haute résistance mécanique dont les interstices sont remplis de matériau d'étanchéité. Il comporte une première gaine extrudée entre le tube et le toron, et le toron est lui-même recouvert d'une deuxième gaine extrudée isolante et résistante à l'abrasion, avec pour une liaison téléalimentée une bande conductrice sur le tube ou sur la première gaine. L'invention trouve une application dans le domaine de la télécommunication.
Patent CA-2050747-A1 (CA)
Title: Power operated pipe bending mandrel
Inventor: PETTIFER DONALD A
IPC: F15B13/06
Filed: 1991-09-05
Abstract: ABSTRACT OF THE DISCLOSURE An improvement  in a power operated pipe bending mandrel having a body mounted on wheels,  a hydraulical forward/reverse   drive   system   and   a   hydraulically expandable/contractible sections mounted on the body.  The improvement consists of an internal combustion engine, a fuel tank for the internal combustion engine, a variable displacement pump, a hydraulic fluid reservoir, valves to activate the hydraulic forward/reverse drive system and valves  to  activate  the  expandable/contractible  body sections  positioned  on  the  mandrel.    The  valves  are remotely activated.