Only C, H, And Oxygen Atoms Patents (Class 524/361)
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Pharmaceutical preparation of antihypertensive, antianginal, antiarrhythmic and antiglaucomic action
Patent number: 5326774Abstract: An antihypertensive, antianginal, antiarrhythmic and antiglaucomic pharamaceutical preparation consists of an active principle, namely 3-methyl-5-[2-(3-tert.butylamino-2-hydroxypropoxy-phenoxymethyl]-1,2,4-oxa diazole hydrochloride of the following formula: ##STR1## and a pharmaceutically acceptable diluent.Type: GrantFiled: August 11, 1992Date of Patent: July 5, 1994Inventors: Mikhail D. Mashovsky, Sergei D. Juzhakov, Leonid V. Rozenshtraukh, Oleg S. Medvedev, Evgeny P. Anjukhovsky, Elena V. Dorodnikova, Olga V. Dolgun, Aron Y. Bunin, Valentina N. Ermakova, Vladimir I. Metelitsa, Vladimir K. Piotrovsky -
Patent number: 5278201Abstract: A biodegradable polymer is provided for use in providing syringeable, in-situ forming, solid biodegradable implants for animals. The polymer is placed into the animal in liquid form and cures to form the implant in-situ. A thermoplastic system to form said implant comprises the steps of dissolving a non-reactive polymer in biocompatible solvent to form a liquid, placing the liquid within the animal, and allowing the solvent to dissipate to produce the implant. An alternative, thermosetting system comprises mixing together effective amounts of a liquid acrylic ester terminated, biodegradable prepolymer and a curing agent, placing the liquid mixture within an animal and allowing the prepolymer to cure to form the implant. Both systems provide a syringeable, solid biodegradable delivery system by the addition of an effective level of biologically active agent to the liquid before injection into the body.Type: GrantFiled: April 24, 1990Date of Patent: January 11, 1994Assignee: Atrix Laboratories, Inc.Inventors: Richard L. Dunn, James P. English, Donald R. Cowsar, David P. Vanderbilt
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Patent number: 5229453Abstract: A hydrophilic polyurethane prepolymer in a compatible, water-miscible solvent or solvent blend having a solids content of greater than about 10 and less than about 50 percent prepolymer in organic solvent that reacts with water at about a 1:1 ratio by volume to produce an excellent gel for use in sealing water containing structures and soil stabilization. In the cure process, the compositions of the present invention expand less than 50%, and preferably less than 30%.Type: GrantFiled: June 4, 1991Date of Patent: July 20, 1993Assignee: Minnesota Mining and Manufacturing CompanyInventor: Gary P. Roberts
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Patent number: 5102938Abstract: A hydrophilic polyurethane prepolymer in a compatible, water-immiscible solvent or water-immiscible solvent blend having a solids content of greater than about 10 and less than about 50 percent prepolymer in the solvent or solvent blend. This composition reacts with water at about a 1:1 ratio by volume to produce an excellent gel for use in sealing water containing structures and soil stabilization. In the cure process, the compositions of the present invention expand less than 50%, and preferably less than 30%.Type: GrantFiled: June 5, 1990Date of Patent: April 7, 1992Assignee: Minnesota Mining and Manufacturing CompanyInventor: Gary P. Roberts
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Patent number: 5095052Abstract: The high sublimation energy of industrial diamond pigment is combined with the clean ablation properties of an epoxy or urethane binder. The result is a low impulse decoy coating that has the desired compatibility with the decoy heat shield materials, good radar transmission, and a neutral effect on the electron densities in the wake. A high volume fraction of the diamond pigment is required to substantially reduce the blow-off impulse. The coating for a carbon-carbon substrate is a mixture of diamond pigment and a urethane or epoxy binder. Good quality, strong adherent coatings for a low-impulse decoy were fabricated in the range of 85 to 90 weight percent of diamond for both urethane and epoxy.Type: GrantFiled: June 28, 1990Date of Patent: March 10, 1992Assignee: The United States of America as represented by the Secretary of the Air ForceInventors: Chadwick B. Delano, Michael R. McHenry
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Patent number: 5079340Abstract: A thermoplastic polyketone polymer composition having thermoset properties, processes for its production, and articles made thereof are disclosed. This composition also having improved continuous use temperature and thermal stability properties can be produced by crosslinking, at elevated temperatures, a thermoplastic polyketone resin with a suitable basic material. Optionally, suitable lubricants or fillers can also be added to further improve the properties of the resulting composition.Type: GrantFiled: April 30, 1991Date of Patent: January 7, 1992Assignee: Shell Oil CompanyInventors: Andrew B. Auerbach, Stephen J. Hanley
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Patent number: 5057568Abstract: A solvented polyurethane adhesive composition comprising 20 to 40% by weight of diphenylmethane diisocyanate, 0.5 to 4.0% by weight of a caprolactone triol, 40 to 75% by weight of a neopentyl adipate ester diol, 0 to 10% by weight of at least one polypropylene oxide diol, and a functionally effective amount of a catalyst therefor.Type: GrantFiled: April 17, 1990Date of Patent: October 15, 1991Assignee: National Starch and Chemical Investment Holding CorporationInventors: James Nowicki, Arthur Pruiksma
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Patent number: 5047451Abstract: A corrosive resistant coating composition with improved weldability characteristics which is applied to a metal substrate as a wet film and then heated to dry and initiate curing to provide a protective coating tenaciously bonded to the substrate. The composition has corrosion inhibiting finely divided aluminum or stainless steel, a weldability agent of finely divided nickel, a primary bonding resin, and a vehicle of solvents. Preferably, the composition also has a secondary organic resin and thixotropic, metal suspension and hydroscopic agents.Type: GrantFiled: November 28, 1988Date of Patent: September 10, 1991Assignee: Depor Industries, Inc.Inventors: L. Donald Barrett, Dale R. Hahn, Peter E. Pelloski, Richard W. Ziegler
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Patent number: 5037879Abstract: A hydrophilic polyurethane prepolymer in a compatible, water-miscible solvent or solvent blend having a solids content of greater than about 10 and less than about 50 percent prepolymer in organic solvent that reacts with water at about a 1:1 ratio by volume to produce an excellent gel for use in sealing water containing structures and soil stabilization. In the cure process, the compositions of the present invention expand less than 50%, and preferably less than 30%.Type: GrantFiled: April 5, 1990Date of Patent: August 6, 1991Assignee: Minnesota Mining and Manufacturing CompanyInventor: Gary P. Roberts
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Patent number: 5036143Abstract: High green strength curable urethane adhesive compositions of a polyol, an organic isocyanate compound, a thermoplastic polyurethane which is soluble in methyl ethyl ketone to at least 1 weight percent for imparting tack and green strength properties to the composition, and, optionally, a solvent for controlling the percent solids and viscosity of the composition.Type: GrantFiled: December 15, 1988Date of Patent: July 30, 1991Assignee: CasChem, Inc.Inventors: Melvin Brauer, Clayton C. Crawford
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Patent number: 5032442Abstract: Disclosed herein is a fibrillated weatherproof web having a network structure, which can be produced with ease and is economical. The web comprises a multilayer composite film composed of at least two layers, one being a first layer (I) made of a first thermoplastic resin and the other a second layer (II) made of a second thermoplastic resin having a melting point lower than the first thermoplastic resin and containing at least 300 ppm of a light resistance imparting agent. A number of slits have been formed in a longitudinal or transverse direction. The web has been oriented at a draw ratio in a range of from 1.1 to 15 times. A nonwoven fabric making use of one or more fibrillated webs of the above sort and processes for the production of the web and nonwoven fabric are also disclosed.Type: GrantFiled: October 17, 1989Date of Patent: July 16, 1991Assignee: Nippon Petrochemicals Company, Ltd.Inventors: Shinji Yamazaki, Toshio Kotsuka
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Patent number: 5030515Abstract: A method for bonding a rubber substrate to a metal substrate wherein a primer composition is first applied to the surface of said metal substrate and the rubber substrate is then bonded to the primer composition-containing metal substrate surface using a rubber-to-metal bonding adhesive, the improvement comprising employing as the primer composition a mixture comprising an epoxidized diene polymer having a molecular weight of about 500 to 30,000 and a resole type phenolic resin, in a weight ratio of about 2 to 100 parts of said diene polymer per 100 parts of said resole type phenolic resin.Type: GrantFiled: January 16, 1990Date of Patent: July 9, 1991Assignee: Lord CorporationInventors: Hiroyoshi Ozawa, Masazumi Izawa, Akihiko Kasuya
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Patent number: 5025049Abstract: A primer composition dilluted with a suitable organic solvent comprising (A) an organic copolymer comprising an alkoxysilylated monomer, vinyl acetate and other monomers copolymerizable therewith, (B) a polyalkyl (meth)acrylate, (C) a crosslinking agent for said copolymer (A), and (D) an ultraviolet absorber. This primer composition is a very effective primer in forming an organopolysiloxane coating layer excellent in adhesion, endurance, weathering resistance of the surface of a molded article of a thermoplastic resin.Type: GrantFiled: May 30, 1990Date of Patent: June 18, 1991Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Mitsuhiro Takarada, Kazuharu Sato
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Patent number: 5019100Abstract: The invention relates to the use of a polymer network comprising a poly(meth) acrylate which is linked by means of oligomer chains which contain chemically bound ethylene oxide units as hydratable groups, the ethylene oxide units being present in the form of oligomer blocks containing 5/14 200 ethylene oxide units, for coating and/or impregnating a substrate or for manufacturing products such as eye lenses and matrices for immobilizing and/or the regulated release of active substances. The polymer network has improved mechanical properties and a desirable permeability to water or water vapour.Type: GrantFiled: July 1, 1988Date of Patent: May 28, 1991Assignee: Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek TNOInventors: Wilhelmus E. Hennink, Leendert Huizer
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Patent number: 5009811Abstract: A conducting varnish composition consisting essentially of:(a) a tetracyanoquinodimethane complex salt;(b) a high molecular weight compound;(c)(i) at least one compound selected from the group consisting of acetals, orthoformic acid esters, orthoacetic acid esters, orthocarbonic acid esters, siloxanes, silyl ethers and orthosilicic acid esters; and/or(ii) a surfactant or a silicone oil; and(d) a solvent.the TCNQ complex salt is stable in a solution of the composition according to the present invention and the composition can be stored for a long period of time. Therefore, it provides a conducting material which exhibits a constant conductivity. Also, the composition of the present invention is excellent in the film-formability and moldability, and can be formed into a film or an article of good quality, that is, having no incomplete part.Type: GrantFiled: March 9, 1989Date of Patent: April 23, 1991Assignee: Nitto Chemical Industry Company, Ltd.Inventors: Tomio Nakamura, Shigeru Shimizu, Kikuko Takeuchi
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Patent number: 5008320Abstract: This invention relates to materials produced by diluting in a solvent a platinum or rhodium catalyzed preceramic mixture of a hydrogen silsesquioxane resin and a metal oxide precursor selected from the group consisting of an aluminum alkoxide, a titanium alkoxide, and a zirconium alkoxide. The preceramic mixture solvent solution is applied to a substrate and ceramified by heating. One or more ceramic coatings containing silicon carbon, silicon nitrogen, or silicon carbon nitrogen can be applied over the ceramified SiO.sub.2 /metal oxide coating. A CVD or PECVD top coating can be applied for further protection. The invention is particularly useful for coating electronic devices.Type: GrantFiled: December 7, 1989Date of Patent: April 16, 1991Assignee: Dow Corning CorporationInventors: Loren A. Haluska, Keith W. Michael, Leo Tarhay
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Patent number: 5006584Abstract: A polymer is disclosed that is useful in increasing the viscosity of carbon dioxide. That polymer comprises a polydialkylsilalkylene polymer; wherein the dialkyl group is preferably dimethyl, methylethyl, or diethyl; and the alkylene group is preferably ethylene or methylene. Preferably, the polymer is polydimethylsilalkylene. That polymer can be used in a method for recovering oil from an underground oil-bearing earth formation penetrated by an injection well and a producing well, in which method carbon dioxide is injected into the formation to displace oil towards the producing well from which oil is produced to the surface. The viscosity of the carbon dioxide injected into the formation is increased at least three-fold by the presence of a sufficient amount of the polydialkylsilalkylene polymer and a sufficient amount of a cosolvent to form a solution of the polymer in the carbon dioxide.Type: GrantFiled: February 22, 1990Date of Patent: April 9, 1991Assignee: Chevron Research and Technology CompanyInventor: Bruce W. Davis
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Patent number: 4988779Abstract: Compositions curable to pressure sensitive adhesives are disclosed which comprise from 30 to 50 parts of a vinyl endblocked polydiorganosiloxane fluid having a viscosity from 500 to 10,000 centipoise at 25.degree. C., from 50 to 70 parts of a benzene soluble resin copolymer havingR.sub.3 SiO.sub.1/2 units and SiO.sub.4/2 units,an organopolysiloxane having silicon bonded hydrogen atoms for the purpose of curing the composition and developing the PSA properties, and a platinum catalyst for the curing process.Type: GrantFiled: April 17, 1989Date of Patent: January 29, 1991Assignee: General Electric CompanyInventors: George F. Medford, Donald S. Johnson
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Patent number: 4981946Abstract: A marine paint composition comprising a polymer of the formula: ##STR1## wherein R is alkyl, monocyclic cycloalkyl, monocyclic heterocyclic, aromatic, siloxy, silyl and the alkyl, alkoxy, carboxyl and amino substituted derivatives thereof, and n is about 70 to 700, and a suitable carrier.Type: GrantFiled: December 5, 1988Date of Patent: January 1, 1991Inventor: Semih Erhan
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Patent number: 4966934Abstract: A biologically compatible adhesive dental primer that is shelf stable as a single component adhesive and includes a mixture of an adhesive promoting and polymerizable monomer system having a free radical polymerizable monomer or prepolymer having ethylenic unsaturation and a phosphorus containing adhesion promoter which is free from halogen atoms bonded directly to a phosphorus atom, and optionally a free radical polymerization catalyst, and an accelerator for the catalyst.Type: GrantFiled: June 21, 1989Date of Patent: October 30, 1990Assignee: Dentsply Research & Development Corp.Inventors: Chin-Teh Huang, Gordon B. Blackwell
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Patent number: 4923945Abstract: Disclosed is a resin composition curable at a low temperature and characterized in that the composition comprises:(a) at least one of a copolymer comprising as its monomer components an oxirane-containing vinyl monomer and an alkoxysilane-containing vinyl monomer and a vinyl copolymer comprising at its monomer components a polysiloxane macromonomer and an oxirane-containing vinyl monomer,(b) a chelate compound, and(c) a compound having a number average molecular weight of up to about 1,000 and containing at least two alicyclic oxirane groups in the molecule.Type: GrantFiled: November 8, 1988Date of Patent: May 8, 1990Assignee: Kansai Paint Company, LimitedInventors: Osamu Isozaki, Noboru Nakai, Satoru Ito, Seiji Takami
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Patent number: 4923944Abstract: A release agent composition which manifests almost no silicone migration and a very low slickness while nevertheless having a low release value is achieved by means of a release agent composition which is based on a methylalkenylpolysiloxane, an alkylhydrogenpolysiloxane crosslinker for the methylalkenylpolysiloxane, an organopolysiloxane containing monovalent hydrocarbon groups which lacks aliphatically unsaturated bonds and which contains 6 to 18 carbon atoms which functions to lighten the releaseability of the cured film, to check silicone migration, and to reduce the slickness, and a catalytic quantity of a platinum-type catalyst.Type: GrantFiled: November 22, 1988Date of Patent: May 8, 1990Assignee: Toray Silicone Company, Ltd.Inventors: Takateru Yamada, Shosaku Sasaki
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Patent number: 4920167Abstract: Disclosed is dispersion of a polyurethane-urea polymer in a continuous phase. This dispersion contains about 0.1 to about 5 parts by weight of an ionizable, non-volatile salt per 100 parts by weight of polyurethane-urea polymer. Polyurethane-urea coatings made from this dispersion have excellent static dissipative properties.Type: GrantFiled: November 10, 1988Date of Patent: April 24, 1990Assignee: The Dow Chemical CompanyInventors: Sven H. Ruetman, Joginder N. Anand, G. Robert Collins
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Patent number: 4910242Abstract: Moisture-hardening joint sealing compositions based on polyurethane prepolymers, swellable polymer powders, plasticizers and other auxiliaries have increased stability in storage when they contain C.sub.8 -C.sub.20 olefins as stabilizers.Type: GrantFiled: August 10, 1988Date of Patent: March 20, 1990Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Tore Podola, Wolfgang Ernst, Winfried Emmerling
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Patent number: 4904721Abstract: A coating composition comprising:(a) 100 parts by weight (in terms of organoalkoxysilane) of at least one compound selected from the group consisting of (a') an organoalkoxysilane represented by the general formula (I):RSi(OR.sup.1).sub.3 (I)wherein R is an organic group having 1-8 carbon atoms and R.sup.1 is an alkyl group having 1-5 carbon atoms or an acyl group having 1-4 carbon atoms, (a") a hydrolyzate of (a') and (a'") a partial condensate of (a'),(b) 5-50 parts by weight (as solids) of colloidal alumina, and(c.sub.1) 2-200 parts by weight of at least one organopolysiloxane having at least one reactive functional group in the polymer molecule and/or(c.sub.2) 3-6,000 parts by weight of at least one silyl group-containing vinyl polymer having, at the terminal(s) or side chain(s) of the polymer molecule, at least one silyl group having a silicon atom having bonded thereto a hydrolyzable group, and(d) an organic solvent.Type: GrantFiled: January 5, 1988Date of Patent: February 27, 1990Assignee: Japan Synthetic Rubber Co., Ltd.Inventors: Hideyuki Hanaoka, Kazuo Yamamoto, Toshiyuki Suzuki
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Patent number: 4902754Abstract: A solvent-based thermosetting coating composition comprising a hydroxy functional urethane modified polyester resin and blocked polyisocyanate crosslinking agent. The coating composition may be formulated as a hot sprayable, high solids coating composition suitable for use as chip resistant automotive vehicle primer suitable for use on body panel areas subject to chipping by stones, gravel and other road debris. Alternatively, the composition may be formulated as a high solids composition sprayable with conventional spraying equipment. The hydroxy functional urethane modified polyester resin is the product of polymerization of lactone monomers in the presence of hydroxy-containing urethane modified polyester precursor. The polymerization reaction mixture comprises between about 10 and about 80 weight percent the hydroxy-containing urethane modified polyester precursor and between about 90 and about 20 weight percent lactone monomers.Type: GrantFiled: October 5, 1988Date of Patent: February 20, 1990Assignee: E. I. Du Pont de Nemours & Co.Inventors: Panagiotis I. Kordomenos, Andrew H. Dervan, Tab Semanision
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Patent number: 4902757Abstract: A solvent-based thermosetting coating composition comprising a hydroxy functional urethane modified polyester resin and blocked polyisocyanate crosslinking agent. The coating composition may be formulated as a hot sprayable, high solids coating composition suitable for use as chip resistant automotive vehicle primer suitable for use on body panel areas subject to chipping by stones, gravel and other road debris. Alternatively, the composition may be formulated as a high solids composition sprayable with conventional spraying equipment. The hydroxy functional urethane modified polyester resin is the product of polymerization of lactone monomers in the presence of hydroxy-containing urethane modified polyester precursor. The polymerization reaction mixture comprises between about 10 and about 80 weight percent the hydroxy-containing urethane modified polyester precursor and between about 90 and about 20 weight percent lactone monomers.Type: GrantFiled: October 5, 1988Date of Patent: February 20, 1990Assignee: E. I. Du Pont de Nemours & Co.Inventors: Panagiotis I. Kordomenos, Andrew H. Dervan, Tab Semanision
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Patent number: 4902755Abstract: A solvent-based thermosetting coating composition comprising a hydroxy functional urethane modified polyester resin and blocked polyisocyanate crosslinking agent. The coating composition may be formulated as a hot sprayable, high solids coating composition suitable for use as chip resistant automotive vehicle primer suitable for use on body panel areas subject to chipping by stones, gravel and other road debris. Alternatively, the composition may be formulated as a high solids composition sprayable with conventional spraying equipment. The hydroxy functional urethane modified polyester resin is the product of polymerization of lactone monomers in the presence of hydroxy-containing urethane modified polyester precursor. The polymerization reaction mixture comprises between about 10 and about 80 weight percent the hydroxy-containing urethane modified polyester precursor and between about 90 and about 20 weight percent lactone monomers.Type: GrantFiled: October 5, 1988Date of Patent: February 20, 1990Assignee: E. I. Du Pont de Nemours & Co.Inventors: Panagiotis I. Kordomenos, Andrew H. Dervan, Tab Semanision
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Patent number: 4902756Abstract: A solvent-based thermosetting coating composition comprising a hydroxy functional urethane modified polyester resin and blocked polyisocyanate crosslinking agent. The coating composition may be formulated as a hot sprayable, high solids coating composition suitable for use as chip resistant automotive vehicle primer suitable for use on body panel areas subject to chipping by stones, gravel and other road debris. Alternatively, the composition may be formulated as a high solids composition sprayable with conventional spraying equipment. The hydroxy functional urethane modified polyester resin is the product of polymerization of lactone monomers in the presence of hydroxy-containing urethane modified polyester precursor. The polymerization reaction mixture comprises between about 10 and about 80 weight percent the hydroxy-containing urethane modified polyester precursor and between about 90 and about 20 weight percent lactone monomers.Type: GrantFiled: October 5, 1988Date of Patent: February 20, 1990Assignee: E. I. Du Pont de Nemours & Co.Inventors: Panagiotis I. Kordomenos, Andrew H. Dervan, Tab Semanision
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Patent number: 4894292Abstract: A flexible fibrous reinforced phenol-formaldehyde sheet molding compound capable of rapid curing to an infusible state.Type: GrantFiled: July 25, 1986Date of Patent: January 16, 1990Assignee: Reichhold Chemicals Inc.Inventors: Jeno J. Dibuz, Leland R. Miller
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Patent number: 4859729Abstract: Plasticized compositions are produced by intimately mixing (a) a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon and (b) an organic sulfone. Particularly preferred compositions comprise polymers of carbon monoxide and ethylene or polymers of carbon monoxide, ethylene and propylene, plasticized by the intimate presence therein of sulfolane.Type: GrantFiled: September 6, 1988Date of Patent: August 22, 1989Assignee: Shell Oil CompanyInventor: Edgar J. Smutny
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Patent number: 4835205Abstract: Solution or lacquer adhesives are utilized in a wide variety of applications. Such adhesives are particularly useful because they can be easily applied to a substrate. This invention relates to a copolyester which is particularly useful as an adhesive which is comprised of repeat units which are derived from (a) diacid component which is comprised of (1) from 0 to 60 mole percent terephthalic acid and (2) from 40 to 100 mole percent of at least one aliphatic dicarboxylic acid containing from 4 to 12 carbon atoms; (b) a diol component which is comprised of (1) from 0 to 75 mole percent neopentyl glycol and (2) from 25 to 100 mole percent ethylene glycol; and (c) hydroxymethyl benzoic acid.Type: GrantFiled: January 11, 1988Date of Patent: May 30, 1989Assignee: The Goodyear Tire & Rubber CompanyInventor: William C. T. Tung
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Patent number: 4822835Abstract: Adhesive systems particularly useful for adhering epichlorohydrin elastomers, comprise solutions of urethane polymers, amino silane coupling agents, and epoxy silane coupling agents in organic solvents.Type: GrantFiled: May 31, 1988Date of Patent: April 18, 1989Assignee: Syn-Coat Enterprises, Inc.Inventor: Donald S. Close
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Patent number: 4789498Abstract: A resinous block copolymer, such as butadiene/styrene block copolymer, having an antiblocking agent incorporated therein, such as a microcrystalline wax, is bonded or welded together with a composition containing at least one hydroxyl-ether and/or keto-ether such as 4-methoxy-4-methyl-2-pentanone.Type: GrantFiled: March 2, 1987Date of Patent: December 6, 1988Assignee: Phillips Petroleum CompanyInventor: Harold D. Boultinghouse
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Patent number: 4786524Abstract: The described development is directed to a coating formulation for filling surface irregularities in graphite articles such as molds, crucibles, and matched die sets used in high-temperature metallurgical operations. The coating formulation of the present invention is formed of carbon black flour, thermosetting resin and a solvent for the resin. In affixing the coating to the article, the solvent is evaporated, the resin cured to bond the coating to the surface of the article and then pyrolyzed to convert the resin to carbon. Upon completion of the pyrolysis step, the coating is shaped and polished to provide the article with a surface restoration that is essentially similar to the original or desired surface finish without the irregularity.Type: GrantFiled: July 8, 1987Date of Patent: November 22, 1988Assignee: The United States of America as represented by the United States Department of EnergyInventors: Zane L. Ardary, Samuel T. Benton
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Patent number: 4780489Abstract: The subject invention relates to modifiers for aqueous basic solutions of phenolic resins. The modifiers are open-chain ether alcohols or ketone alcohols. They assist in stabilizing the aqueous basic solutions of phenolic resole resins and improve the tensile strength of foundry shapes prepared from foundry mixes made with the aqueous basic solutions.Type: GrantFiled: May 15, 1987Date of Patent: October 25, 1988Assignee: Ashland Oil, Inc.Inventors: William R. Dunnavant, Robert B. Fechter, Gary R. Hysell, Young D. Kim, Heimo J. Langer
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Patent number: 4780492Abstract: A liquid concentrate comprising an oxamide and a 2,2,6,6-tetraalkylpiperidine compound dissolved in an organic solvent is useful for the UV-stabilization of hardenable liquid finishes, particularly automotive finishes.Type: GrantFiled: December 22, 1986Date of Patent: October 25, 1988Assignee: Sandoz Ltd.Inventor: Lajos Avar
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Patent number: 4740547Abstract: A thermoplastic composition is provided which comprises an aromatic polysulfone with an effective amount of an alpha-hydroxyketone such as benzoin to prevent discoloration on thermal processing.Type: GrantFiled: May 14, 1987Date of Patent: April 26, 1988Assignee: Borg-Warner Chemicals, Inc.Inventor: Yuyal Halpern
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Patent number: 4740548Abstract: A thermoplastic composition is provided which comprises a polyimide with an effective amount of an alpha-hydroxyketone such as benzoin to prevent discoloration on thermal processing.Type: GrantFiled: May 14, 1987Date of Patent: April 26, 1988Assignee: Borg-Warner Chemicals, Inc.Inventor: Yuval Halpern
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Patent number: 4735984Abstract: A composition containing dispersed pigment comprises, as a dispersing agent, a reaction product of at least one polyamine having two or more primary amino groups and/or secondary amino groups and at least one polyisocyanate having two or more isocyanate groups.Type: GrantFiled: December 20, 1985Date of Patent: April 5, 1988Assignee: Nippon Paint Co., Ltd.Inventors: Harunori Gouji, Hisao Kato, Hiroyoshi Kataoka
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Patent number: 4710543Abstract: A thermosetting coating composition with excellent weatherability adapted for use as an automotive topcoat which upon curing forms a hard, glossy, durable coating. The coating composition, which reacts in situ during curing, characterized in that the composition comprises a mixture of:(A) acrylic copolymer bearing pendant epoxide functionality and hydroxyl functionality and having a number average molecular weight (M.sub.n) of between about 1000 and about 5000;(B) dicarboxylic acid anhydride comprising at least about 50 weight percent of alkyl hexahydrophthalic anhydride;(C) amine-aldehyde crosslinking agent; and(D) solvent.Type: GrantFiled: August 9, 1982Date of Patent: December 1, 1987Assignee: E. I. du Pont de Nemours and CompanyInventors: Mohinder S. Chattha, Ares N. Theodore
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Patent number: 4695601Abstract: A thermoplastic composition is provided which comprises a polyphenylene ether such as the copolymer of 2,6-dimethylphenol with 2,3,6-trimethylphenol, with an effective amount of an alpha-hydroxyketone such as benzoin to prevent discoloration on thermal processing.Type: GrantFiled: November 12, 1986Date of Patent: September 22, 1987Assignee: Borg-Warner Chemicals, Inc.Inventor: Yuval Halpern
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Patent number: 4654398Abstract: The weatherability of acrylic coatings is enhanced by incorporating into the acrylic polymer hydroxybutyl acrylate or hydroxybutyl methacrylate.Type: GrantFiled: September 23, 1985Date of Patent: March 31, 1987Assignee: The Dow Chemical CompanyInventor: Russell T. McFadden
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Patent number: 4649067Abstract: One-component baking enamels of polyesters, containing hydroxyl groups, and polyisocyanates, wherein the polyisocyanate component consists of 2-methyl-1,5-diisocyanatopentane (MPDI) having the formula (I): ##STR1## which is blocked totally or partially by .epsilon.-caprolactam or acetoxime, or a mixture of the same with 2-ethyl-1,4-diisocyanatobutane (EBDI) having the formula (II): ##STR2## which is blocked totally or partially by .epsilon.-caprolactam or acetoxime, wherein the diisocyanate mixture of (I) and (II) has about 88 to 99% by weight of (I) and about 12 to 1% by weight of (II) and the free isocyanate (NCO) content is up to about 10% by weight.The one-component baking enamels are suitable for application to metal, glass and plastic objects and exhibit excellent flexibility and weather resistance.Type: GrantFiled: May 24, 1984Date of Patent: March 10, 1987Assignee: Chemische Werke Huls AktiengesellschaftInventor: Rainer Gras
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Patent number: 4618635Abstract: Described herein are compositions comprising the reaction product of a polyol, a multi-functional isocyanate, a lactone-acrylate adduct and an hydroxyalkyl acrylate. These compositions are suitable for use as curable coatings.Type: GrantFiled: May 17, 1985Date of Patent: October 21, 1986Assignee: Union Carbide CorporationInventors: Claiborn L. Osborn, Joseph V. Koleske, Kenneth Drake
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Patent number: 4613637Abstract: A copolymer formed from an isoimide oligomer and another compound, such as an aryl sulfone, each of which has reactive functional terminal groups, such as ethylenic or acetylenic groups. The isoimide oligomer is soluble in the other compound, unreactive with the compound below a certain temperature and forms a liquid blend therewith. Upon heating the liquid blend above that certain temperature, the terminal groups on the isoimide oligomer and the other compound react with each other to form a copolymer. The liquid blends may be used to form encapsulants, coatings, films, and resin matrices for composites to provide resins with excellent high temperature properties.Type: GrantFiled: December 27, 1983Date of Patent: September 23, 1986Assignee: Hughes Aircraft CompanyInventors: Abraham L. Landis, Arthur B. Naselow
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Patent number: 4596843Abstract: A high solids coating composition which comprises 10-96 percent by weight resin solids of a low molecular weight epoxy oligomer, 2-35 percent by weight crosslinking glycoluril-formaldehyde resin and a primary sulfonic acid catalyst. The oligomer is condensed upon heating into a high molecular weight polymer film with simultaneous crosslinking with the crosslinking agent to provide the desired film properties.Type: GrantFiled: March 20, 1985Date of Patent: June 24, 1986Assignee: Insilco CorporationInventor: Donald G. Wind
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Patent number: 4581093Abstract: Described are adhesives formed from certain diol/higher polyol/aromatic acid/aliphatic acid branched polyesters and laminates using them.Type: GrantFiled: October 17, 1984Date of Patent: April 8, 1986Assignee: Whittaker CorporationInventors: Paul R. Noyes, Eugene G. Sommerfeld
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Patent number: RE32334Abstract: Polyethylene terephthalate resin compositions containing filler or reinforcing agent, a selected sodium or potassium salt of a hydrocarbon acid or a salt of a selected organic polymer containing pendant carboxyl groups, and a selected low molecular weight organic ester, ketone, sulfone, sulfoxide, nitrile or amide. Articles molded from the compositions have high gloss when molded at temperatures below 110.degree. C.Type: GrantFiled: March 11, 1986Date of Patent: January 20, 1987Assignee: E. I. Du Pont de Nemours and CompanyInventor: Edward J. Deyrup
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Patent number: H534Abstract: The present invention relates to a laser energy attenuation paint compris a laser absorption dye in combination with a resin base in a solvent.Type: GrantFiled: September 17, 1987Date of Patent: October 4, 1988Assignee: The United States of America as represented by the Secretary of the ArmyInventor: Daniel D. Graham