Polymerizing In The Presence Of A Specified Material Other Than A Reactant Patents (Class 528/368)
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Patent number: 5855961Abstract: This invention relates to coating compositions including one or more resins having amino-reactive groups; one or more polyamine curing agents; and one or more aminourethanes. The aminourethanes can be reaction products of (i) oligomeric or polymeric compounds which contain at least one, preferably two or more terminal 2-oxo-1,3-dioxolane groups (cyclic carbonate groups), and (ii) amines containing at least one primary, preferably two or more primary and, if desired, also secondary and tertiary amino groups. The ratios of equivalents of C1):C2) typically is from 1:1 to 1:10, preferably from 1:1.05 to 1:5 and particularly preferably from 1:1.1 to 1:2, and the end product preferably contains one or more free primary amino groups. The composition further may contain, if desired, pigments, fillers, one or more organic solvents, water and conventional additives.Type: GrantFiled: May 12, 1997Date of Patent: January 5, 1999Assignee: Vianova Resins GmbHInventors: Michael Hoenel, Armin Pfeil, Thomas Budnick, Heiner Schwan
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Patent number: 5849861Abstract: New polyquinazoline polymers are provided by reacting novel monomers. The polymers incorporate repeat units that have at least one quinazoline nucleus and at least one ether linkage at the quinazoline 2 or 4 position. The quinazoline polymers are prepared by treating a monomer which comprises a quinazolone nucleus having one activated halide group with a base in a dipolar solvent to thereby form the polyquinazoline polymer.Type: GrantFiled: June 25, 1997Date of Patent: December 15, 1998Assignee: Hitachi Chemical Co., Ltd.Inventor: Virgil J. Lee
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Patent number: 5817736Abstract: Epoxy resin mixtures to produce prepregs and composites contain the following components:a phosphorus-modified epoxy resin with an epoxy value of 0.02 to 1 mol/100 g, made up of structural units derived from(a) polyepoxy compounds with at least two epoxy groups per molecule and(b) phosphinic acid anhydrides, phosphonic acid anhydrides or phosphonic acid half-esters;dicyandiamide and/or an aminobenzoic acid derivative as the hardener;an amino hardening accelerator.Type: GrantFiled: March 10, 1997Date of Patent: October 6, 1998Assignee: Siemens AktiengesellschaftInventors: Wolfgang von Gentzkow, Jurgen Huber
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Patent number: 5759690Abstract: Epoxy resin mixtures for the production of prepregs and composites contain the following components:a phosphorus-modified epoxy resin with an epoxy value of 0.02 to 1 mol/100 g, made up of structural units derived from(a) polyepoxy compounds with at least two epoxy groups per molecule, and(b) phosphinic acid anhydrides, phosphonic acid anhydrides, or phosphonic acid half-esters;an amine-substituted aromatic sulfonic acid amide or hydrazide as a hardener;an amino hardening accelerator.Type: GrantFiled: March 10, 1997Date of Patent: June 2, 1998Assignee: Siemens AktiengesellschaftInventors: Wolfgang von Gentzkow, Jurgen Huber, Heinrich Kapitza, Wolfgang Rogler
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Patent number: 5686560Abstract: New polyquinazoline polymers are provided by reacting novel monomers, The polymers incorporate repeat units that have at least one quinazoline nucleus and at least one ether linkage at the quniazoline 2 or 4 position. The quinazoline polymers are prepared by treating a monomer which comprises a quinazolone nucleus having one activated halide group with a base in a dipolar solvent to thereby form the polyquinazoline polymer.Type: GrantFiled: June 6, 1995Date of Patent: November 11, 1997Assignee: Hitachi Chemical Co., Ltd.Inventor: Virgil J. Lee
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Patent number: 5648171Abstract: Epoxy resin mixtures for producing prepregs and composites that are available at low cost and can be processed well yield flame-retardant molding materials even without the addition of flame retardants, and these molding materials have a high glass transition temperature and also have an improved interlaminar adhesion and adhesion to copper when they contain the following components:a phosphorus-modified epoxy resin with an epoxy value of 0.02 to 1 mol/100 g, composed of structural units derived from(A) polyepoxy compounds with at least two epoxy groups per molecule and(B) at least one compound from the group consisting of phosphinic acids, phosphonic acids, pyrophosphonic acids and phosphonic acid half-esters, andan aromatic polyamine as the hardener.Type: GrantFiled: September 14, 1995Date of Patent: July 15, 1997Assignee: Siemens AktiengesellschaftInventors: Wolfgang von Gentzkow, Jurgen Huber, Heinrich Kapitza, Wolfgang Rogler, Hans-Jerg Kleiner
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Patent number: 5587243Abstract: Epoxy resin mixtures for producing prepregs and composites that are available at low cost and can be processed well yield flame-retardant molding materials even without the addition of flame retardants, and these molding materials have a high glass transition temperature and also have an improved interlaminar adhesion and adhesion to copper when they contain the following components:a phosphorus-modified epoxy resin with an epoxy value of 0.02 to 1 mol/100 g, composed of structural units derived from(A) polyepoxy compounds with at least two epoxy groups per molecule and(B) phosphinic acid anhydrides and/or phosphonic acid anhydrides, andan aromatic polyamine as the hardener.Type: GrantFiled: September 14, 1995Date of Patent: December 24, 1996Assignees: Siemens Aktiengesellschaft, Hoechst AktiengesellschaftInventors: Wolfgang von Gentzkow, J urgen Huber, Heinrich Kapitza, Wolfgang Rogler, Hans-Jerg Kleiner, Dieter Wilhelm
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Patent number: 5587451Abstract: A process for preparing polyazamacrocyclic compounds using a nucleophilic imidazoline with(A) an ethylene oxide or an ethylene carbonate, in an aprotic solvent, followed by intramolecular amination, and then either basic or acidic hydrolysis; or(B) an electrophilic substrate, in a polar solvent, optionally in the presence of a non-nucleophilic base, to form an intermediate, followed by basic hydrolysis; or(C) a electrophilic substrate, in a polar solvent, optionally in the presence of a non-nucleophilic base, followed by prolonged heating in a polar solvent or by treatment with a peroxide solution, followed by basic hydrolysis to form a urea, then basic hydrolysis under pressure; andseparating the desired polyazamacrocycle. The compounds so prepared are useful in pharmaceutical applications.Type: GrantFiled: October 7, 1994Date of Patent: December 24, 1996Assignee: The Dow Chemical CompanyInventors: Phillip S. Athey, Garry E. Kiefer
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Patent number: 5554711Abstract: The invention relates to reaction products prepared from(a) organic polyisocyanates,(b) 0.005 to 0.9 equivalents of a C.sub.6-24 alcohol per equivalent of NCO or latent NCO present in component (a),(c) 0.1 to 0.995 mol of cyanamide per equivalent of NCO or latent NCO present in component (a), and(d) ammonia or a volatile amine as neutralizing agent for the cyanamide groups of component (c),with the proviso that the reaction products are free from polyester and polyether groups and from halogen atoms.Type: GrantFiled: September 6, 1994Date of Patent: September 10, 1996Assignee: Bayer AktiengesellschaftInventors: Harro Tr aubel, Thomas M unzmay, Tillmann Hassel, Wilhelm Kr ummel, Hans-Albert Ehlert, Joachim Kochta
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Patent number: 5508379Abstract: Polyester polymers having pendant carbamate groups are disclosed. The polymers are prepared by reacting:(a) reacting a hydroxyalkyl cyclic carbonate compound with a compound having at least one cyclic anhydride group to form a half-ester acid comprising a cyclic carbonate group,(b) reacting the cyclic carbonate group on the half-ester from step (a) with ammonia, ammonium hydroxide, or a primary amine to ring open the cyclic carbonate and form a compound comprising an acid group, a hydroxyl group, and a pendant carbamate group, and(c) reacting a mixture comprising the compound from step (b) and optionally comprising a polyol or a polyacid or both to form the polyester having pendant carbamate groups.Type: GrantFiled: December 21, 1994Date of Patent: April 16, 1996Assignee: BASF CorporationInventors: Gregory L. Menovcik, Walter H. Ohrbom
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Patent number: 5494922Abstract: The invention concerns allophanic acid derivatives of formula IR.sup.1 --N(R.sup.2)CO--N(R.sup.3)CO--X.sup.1 --Q--X.sup.2 --GIand pharmaceutically acceptable metabolically labile esters or amides thereof, and pharmaceutically acceptable salts thereof, in which R.sup.1, R.sup.2, R.sup.3, X.sup.1, Q X.sup.2 and G have the meanings given in the specification. The invention also concerns processes for the preparation of the allophanic acid derivatives of formula I, pharmaceutical compositions containing them and their use as inhibitors of the binding of fibrinogen to glycoprotein IIb/IIIa.Type: GrantFiled: June 5, 1995Date of Patent: February 27, 1996Assignee: Zeneca LimitedInventors: George R. Brown, Richard E. Shute
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Patent number: 5476974Abstract: Normally liquid, omega-hydrofluoroalkyl ether compounds (and selected mixtures thereof) have a saturated perfluoroaliphatic chain of carbon atoms interrupted by one or more ether oxygen atoms. The compounds can be prepared, e.g., by decarboxylation of the corresponding fluoroalkyl ether carboxylic acids and are useful, e.g., in cleaning and drying applications.Type: GrantFiled: May 20, 1994Date of Patent: December 19, 1995Assignee: Minnesota Mining and Manufacturing CompanyInventors: George G. I. Moore, Miguel A. Guerra
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Patent number: 5463011Abstract: The invention concerns allophanic acid derivatives of formula IR.sup.1 --N(R.sup.2)CO--N(R.sup.3)CO--X.sup.1 --Q--X.sup.2 --GIand pharmaceutically acceptable metabolically labile esters or amides thereof, and pharmaceutically acceptable salts thereof, in which R.sup.1, R.sup.2, R.sup.3, X.sup.1, Q, X.sup.2 and G have the meanings given in the specification. The invention also concerns processes for the preparation of the allophanic acid derivatives of formula I, pharmaceutical compositions containing them and their use as inhibitors of the binding of fibrinogen to glycoprotein IIb/IIIa.Type: GrantFiled: December 29, 1994Date of Patent: October 31, 1995Assignee: Zeneca LimitedInventors: George R. Brown, Richard E. Shute
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Patent number: 5439948Abstract: The invention provides a process for the preparation of a cellular polymeric product which comprises reaction of a polyisocyanate composition with an isocyanate-reactive composition having a functionality of at least 2, in the presence of a blowing agent and in the presence of an inert, organic liquid which is substantially insoluble in the reaction mixture and which is present as the disperse phase of an emulsion or a microemulsion, characterized in that the polyisocyanate composition comprises polymethylene polyphenylene polyisocyanate having a functionality of at least 2.5 and a urethane-modified, isocyanate-ended prepolymer, wherein the isocyanate functionality of the polyisocyanate composition is at least 2.3 and wherein the concentration of urethane linkages in the polyisocyanate composition is in the range from 1 millimole to 150 millimoles per 100 grams thereof.Type: GrantFiled: November 22, 1993Date of Patent: August 8, 1995Assignee: Imperial Chemical Industries PLCInventors: Rik De Vos, David Randall
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Patent number: 5391698Abstract: The invention relates to phosphoric acid polyesters according to the formulae ##STR1## in which R is .dbd.CH.sub.2, .dbd.C.sub.2 H.sub.4 or .dbd.C.sub.3 H.sub.6 and m is 1 to 10 and n is 1 to 6.To prepare these phosphoric acid polyesters, the cyclic phosphoric acid ester 2,4,8,10-tetraoxa-3,9-dioxo-3,9-dihydroxy-phosphaspiro[5.5]-undecane is reacted with tris-hydroxyalkyl cyanurate or tris-hydroxyalkyl isocyanurate at temperatures of 120.degree. to 250.degree. C. in the presence of a catalyst for 2 to 12 hours, while mixing intensively.Type: GrantFiled: January 25, 1994Date of Patent: February 21, 1995Assignee: Hoechst AktiengessellschaftInventor: Horst Staendeke
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Patent number: 5376453Abstract: The invention provides epoxy resin compounds for manufacturing prepregs and composite materials, which can be obtained inexpensively and have good processibility, and provide--without having to add flameproofing agents--virtually inflammable molded materials with a high glass transition temperature. The epoxy resin compounds contain the following constituents:(A) an aromatic and/or heterocyclic polyepoxide resin that is free of phosphorous, optionally in a mixture with an aliphatic epoxy resin;(B) an epoxy-group-containing phosphorous compound and(C) an aromatic polyamine as a curing agent.Type: GrantFiled: March 19, 1993Date of Patent: December 27, 1994Assignee: Siemens AktiengesellschaftInventors: Wolfgang von Gentzkow, Wolfgang Rogler, Dieter Wilhelm, Juergen Huber
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Patent number: 5248809Abstract: A process for preparing a polymerizable compound of the formula: ##STR1## or a polymerizable compound of the formula: ##STR2## is provided. These formed compounds are useful for the preparation of an acrylic resin which is low in viscosity and capable of forming a coating with excellent flexibility, weather resistance and water resistance.Type: GrantFiled: November 7, 1989Date of Patent: September 28, 1993Assignee: Nippon Paint Co., Ltd.Inventors: Ryozo Takagawa, Hisaki Tanabe, Yoshio Eguchi, Koichi Tsutsui
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Patent number: 5215828Abstract: Curable binders obtained by simultaneous reaction ofA) urethanes or ureas,B) acrylic or methacrylic compounds containing hydroxyl groups,C) paraformaldehyde andD) if appropriate, polyols,wherein, in the case where no polyol D) is also reacted, the reaction is carried out in the presence of an acid ion exchanger, and in the case where a polyol D) is also reacted, the reaction is carried out in the presence of an acid ion exchanger or a strong acid.These binders are suitable as coating compositions which can be cured by electron beams or by UV light.Type: GrantFiled: August 19, 1992Date of Patent: June 1, 1993Assignee: Hoechst AGInventors: Gerhard Brindoepke, Inge Kurth, Michael Schwab, Gerd Walz
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Patent number: 5212261Abstract: Latent, heat-curable epoxy resin compositions containing metal carboxylate curing systems provide exceptional latency, particularly at elevated temperature, as well as facile curing, high T.sub.g and adhesive strength, and other attractive properties. The metal carboxylates comprise alkali metals and alkaline earth metals, aromatic and aliphatic metal carboxylates. The preferred curing systems comprise synergistic combinations of the metal carboxylates with cure modifiers.Type: GrantFiled: December 17, 1990Date of Patent: May 18, 1993Assignee: Henkel Research CorporationInventor: Thomas J. Stierman
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Patent number: 5191054Abstract: In this process, cyclic polyimino ethers with a .DELTA..sup.2 -oxazoline or .DELTA..sup.2 -5,6-dihydro-4H-1,3-oxazine structure are polymerized by heating them alone or together with cyclic monoimino ethers of the same type, or with lactones, plus cationic polymerization catalysts. The new polymers are suitable for use as raw materials, foil materials, molding materials and hot-setting adhesives.Type: GrantFiled: January 21, 1992Date of Patent: March 2, 1993Assignee: Henkel Kommanditgesellschaft auf AktienInventor: Brigitte Hase
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Patent number: 5001220Abstract: This invention relates to new high molecular weight, optionally branched co-polyarylene sulphides prepared by the reaction of halogenated aromatic compounds and dihalogenated phenyl-pyrazole-3-ones in a polar solvent with the addition of 0.2 to 100 mol %, based on the dihalogenated aromatic compound, of an amino acid to the reaction mixture, and to the use of these copolyarylene sulphides as embedding compounds for electronic parts.Type: GrantFiled: March 3, 1989Date of Patent: March 19, 1991Assignee: Bayer AGInventors: Karl-Heinz Kohler, Klaus Reinking
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Patent number: 4927865Abstract: Anthraquinones of formula I ##STR1## wherein X is the group --CR.sup.2 R.sup.3 --, where R.sup.2 is H, --CH or C.sub.1 -C.sub.5 -alkyl and R.sup.3 is H or --CN, R.sup.1 is H or C.sub.1 -C.sub.5 -alkyl and R is a direct bond or linear or branched C.sub.1 -C.sub.18 -alkylene which, alone or together with the --CR.sup.2 R.sup.3 -- group, can be interrupted by one or more --O-- when R.sup.2 and/or R.sup.3 are not --CN, and curable compositions comprising (a) an epoxy resin, (b) a hardener if necessary, (c) an anthraquinone of formula I and (d) an amino alcohol. The cured compositions are photosensitive and are suitable for the preparation of coatings and metallic images by electroless metal deposition.Type: GrantFiled: May 12, 1989Date of Patent: May 22, 1990Assignee: Ciba-Geigy CorporationInventors: Rudolf Duthaler, Jurgen Finter, Walter Fischer, Visvanathan Ramanathan
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Patent number: 4891421Abstract: A process for producing a polycarbonate polyol by ester-interchange reaction of a dialkyl, diaryl or alkylene carbonate and a polyhydroxy compound, wherein the dialkyl, diaryl or alkylene carbonate is purified by adsorption treatment with an adsorbent prior to use in the reaction. A process for producing a polycarbonate polyol which comprises ester-interchange reaction of a dialkyl or diaryl carbonate and a polyhydroxy compound in the presence of a catalyst, wherein the proportion of the polyhydroxy compound to the dialkyl or diaryl carbonate is 1.01 to 1.30 times its stoichiometrical amount, and the amount of the catalyst is 0.0001 to 0.5% by weight, calculated as metal, based on the dialkyl or diaryl carbonate. Also provided is a process for producing a polycarbonate polyol by ester-interchange reaction of a dialkyl, diaryl or alkylene carbonate and a polyhydroxy compound in the presence of a catalyst in an amount, as metal, of 0.0001 to 0.Type: GrantFiled: June 22, 1988Date of Patent: January 2, 1990Assignee: Dainippon Ink and Chemicals, Inc.Inventors: Katsuhide Nishimura, Motoyasu Kunugiza, Hiroharu Shirota, Hideyuki Ishizu
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Patent number: 4845181Abstract: An organic condensation polymer made by reacting in solution of first compound having at least two anionic carbon sites bonded to each other either directly or through a chain of 1 to 30 carbon atoms, including a bisacetylide or a first compound having an anionic carbon site and a latent anionic carbon site bonded to each other either directly or through a chain of 1 to 30 carbon atoms, such as organometallic cyclopentadienides, with a second compound containing at least two electrophillic carbon sites bonded to each other either directly or through a chain of 1 to 30 carbon atoms, including diesters, dihalides, diamides or dianhydrides of polycarboxylic acids, and diisocyanates.Type: GrantFiled: September 26, 1988Date of Patent: July 4, 1989Assignee: President and Fellows of Harvard CollegeInventors: Lawrence B. Kool, George M. Whitesides
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Patent number: 4789696Abstract: Cationic paint binders, particularly binders of the type used in cathodic electrodeposition coatings which crosslink through transesterification, transamidation, transurethanization, or through the reaction of chain end double bonds catalyzed with a condensation product of a dialkyltinoxide and a compound carrying at least one hydroxyl group are described. The hydroxyl compounds are the aliphatic alcohols, phenols, alkanolamines, or the reaction products of primary amines with monoepoxy compounds. The catalysts of the invention provide very good stability and good compatibility in aqueous cationic paint materials.Type: GrantFiled: September 21, 1987Date of Patent: December 6, 1988Assignee: Vianova Kunstharz, A.G.Inventors: Willibald Paar, Johann Gmoser
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Patent number: 4713440Abstract: A processor for the preparation of urea condensates and the preparation of heat-curable surface coatings.To prepare these urea condensates, primary di- and/or polyamine is reacted with urea, a secondary monoamine and a polyalcohol which contains certain groups at elevated temperatures and in the presence or absence of a catalyst, and the ammonia formed is separated off.These urea condensates are suitable as binder components in heat-curable surface coatings, in particular for heat-curable cathodic electrocoating finishes.Type: GrantFiled: September 16, 1985Date of Patent: December 15, 1987Assignee: BASF AktiengesellschaftInventors: Rolf Osterloh, Eberhard Schupp, Werner Loch, Klaas Ahlers
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Patent number: 4704409Abstract: A process for preparing a poly(alkylene amido-ether) polyols by reaction of a bicyclic amide acetal with a polyol at a temperature in the range of from 140.degree.-240.degree. C. and the use of these poly(alkylene amidoether) polyols in the formation of polyurethanes are described.Type: GrantFiled: January 20, 1987Date of Patent: November 3, 1987Assignee: Ashland Oil, Inc.Inventor: Anil B. Goel
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Patent number: 4568729Abstract: The present invention relates to a process for the preparation of urea condensates and to their use.To prepare these urea condensates, a primary di and/or polyamine is reacted with urea, a secondary monoamine and if appropriate a polyalcohol at elevated temperatures in the presence or absence of catalysts, and the ammonia formed is separated off.These urea condensates are suitable as binder components in thermosetting surface coatings.Type: GrantFiled: October 31, 1983Date of Patent: February 4, 1986Assignee: BASF AktiengesellschaftInventors: Eberhard Schupp, Werner Loch, Rolf Osterloh, Klaas Ahlers
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Patent number: 4507445Abstract: Epoxide resins are cured by heating with a hydroxyphenylurea of formula ##STR1## where R.sup.2 denotes --NH.sub.2, --NO.sub.2, --Cl, --Br, or alkyl, p denotes zero, x and y each denote zero or 1, and the sum of x+y is 1. Such hydroxyphenylureas may be used alone, as accelerators for heat-curing with other agents such as dicyandiamide, melamine, and carboxylic acid hydrazides, or may be used as the primary curing agent with promoters such as dicyandiamide, melamine, and carboxylic hydrazides.Type: GrantFiled: September 30, 1983Date of Patent: March 26, 1985Assignee: Ciba-Geigy CorporationInventor: Christopher M. Andrews
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Patent number: 4479860Abstract: There is disclosed a photo-curable epoxy resin composition comprising an epoxy resin and a combination of an aluminum compound and a silicon compound having a peroxysilyl group as a hardening catalyst.The compositions of the present invention can suitably be used for wide varieties of electrical applications.Type: GrantFiled: September 12, 1983Date of Patent: October 30, 1984Assignee: Tokyo Shibaura Denki Kabushiki KaishaInventors: Shuzi Hayase, Yasunobu Onishi
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Patent number: 4443593Abstract: Waste or surplus polycarbonates are salvaged by reacting them with a hydroxy amine in an amount sufficient to cleave about 85% or more of the carbonate groups, thereby converting the polymer to a mixture of dihydroxy monomers--including novel dihydroxy carbamates--which may be converted to useful polymers by reaction with other difunctional monomers having at least one hydroxy-reactive functional group per molecule.Type: GrantFiled: June 25, 1982Date of Patent: April 17, 1984Assignee: The Dow Chemical CompanyInventor: Guy R. Collins
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Patent number: 4440921Abstract: A carboxylated phosphazene polymer, comprising a phosphazene polymer backbone covalently coupled to a carboxylate-containing compound through a divalent organic radical attached at one end to the carboxylate by an amide bond formed at a primary aliphatic amino group of the radical and at the other end to a phosphorous of the phosphazene backbone.Type: GrantFiled: June 21, 1982Date of Patent: April 3, 1984Assignee: Research CorporationInventors: Harry R. Allcock, Thomas X. Neenan, Walter C. Kossa
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Patent number: 4436890Abstract: Single package, thermosetting epoxy resin-based coating compositions are provided which contain a polyepoxide and a curing agent system therefor which comprises an aromatic urea. At composition curing times and temperatures, the aromatic urea reacts with a portion of the polyepoxide to thereby form in situ a primary or secondary amine which can then function as a coreactive curing agent to complete the cure of the epoxy resin coating.Type: GrantFiled: December 30, 1982Date of Patent: March 13, 1984Assignee: Mobil Oil CorporationInventor: Marvin L. Kaufman
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Patent number: 4436880Abstract: Compositions containing(a) an epoxide resin containing more than one 2,3-epoxypropyl group per average molecule,(b) a boron trifluoride-amine complex which is a latent hardener for epoxide resins, such as BF.sub.3 -ethylamine, and(c) certain oxidants, such as benzoyl peroxide or 2,3-dichloro-5,6-dicyanobenzoquinone, are stable on storage at ambient temperature but cure rapidly when heated above a certain threshold temperature, the oxidant having a marked accelerating effect on the rate of curing.Type: GrantFiled: February 1, 1983Date of Patent: March 13, 1984Assignee: Ciba-Geigy CorporationInventor: Edward Irving
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Patent number: 4404355Abstract: The invention relates to heat curable epoxy resin compositions consisting of an epoxy resin containing, on average, more than one epoxide group per molecule, an aromatic onium salt as catalyst, a copper complex compound as co-catalyst, and a light stabilizer. These compositions are less sensitive to UV irradiation and have a good shelf life at room temperature as well as a good high temperature reactivity.Type: GrantFiled: September 28, 1981Date of Patent: September 13, 1983Assignee: Ciba-Geigy CorporationInventors: Sameer H. Eldin, Bruno Schreiber
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Patent number: 4384084Abstract: Hardenable mixtures which contain a polyepoxide compound with, on average, more than one epoxide group in the molecule, and a hardener of the formula I ##STR1## The symbol n is an integer from 3 to 5. The methylene carbon atoms can be substituted by one or two methyl or ethyl groups.The hardenable mixtures can be used, for example, in the fields of the protection of surfaces or of adhesives technology.Type: GrantFiled: February 10, 1982Date of Patent: May 17, 1983Assignee: Ciba-Geigy CorporationInventors: Friedrich Lohse, Dieter Trachsler, Roland Moser
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Patent number: 4349663Abstract: Bis(cyclic ureas) are disclosed which have the formula ##STR1## wherein R is ##STR2## and C.sub.n H.sub.2n is ethylene or 1,3-propylene each of which can be substituted by one or more inert substituents.These compounds are useful as masked diisocyanates which, on heating in the presence of a polyol and, optionally, a polyurethane catalyst, give rise to polyurethane resins. Accordingly, they are useful as a component of storage stable compositions which are convertible to polyurethanes upon heating. Such compositions are particularly useful as solvent-less coating compositions. The properties of the above compounds are distinguished in a number of respects from the known bis(cyclic ureas) in which C.sub.n H.sub.2n has 4 or more carbon atoms in the chain between the valencies. Illustratively, the above compounds are more stable on exposure to heat in the absence of catalysts but, in the presence of polyurethane catalysts, react with polyols at a significantly faster rate than the prior art compounds.Type: GrantFiled: November 10, 1980Date of Patent: September 14, 1982Assignee: The Upjohn CompanyInventors: Edward A. Barsa, Chung-Yuan Lin, Fred A. Stuber
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Patent number: 4348514Abstract: Non-crosslinking, water-soluble polyamines which can be obtained by reacting(A) basic polyureas which have been prepared by condensation of ureas with polyamines containing at least three amino groups, of which at least one is a tertiary amino group, or with mixtures of these polyamines with aliphatic, araliphatic, cycloaliphatic or heterocyclic polyamines containing two primary or two secondary amino groups or one primary or one secondary amino group, and optionally with .omega.-aminocarboxylic acids containing at least three carbon atoms, or lactams thereof,(B) polyalkylenepolyamines of the general formula ##STR1## in which R denotes H or CH.sub.Type: GrantFiled: June 5, 1980Date of Patent: September 7, 1982Assignee: Bayer AktiengesellschaftInventors: Wilfried Lobach, Gunter Kolb, Wolfgang Lehmann, Gunther Cramm, Friedhelm Muller, Janos Muszik
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Patent number: 4324886Abstract: Alkali metal aminoalkanoate is prepared by contacting in the presence of an alkali metal carboxylate a reaction mixture in which there is at least one alkali metal hydroxide, at least one lactam, and water. Arylene sulfide polymer is prepared by contacting at polymerization conditions a reaction mixture that contains at least one alkali metal aminoalkanoate prepared as described above; at least one polyhalo-substituted aromatic compound; at least one organic amide as solvent and H.sub.2 S. In an embodiment of the polymerization the organic amide used as solvent can be the same as the lactam from which the alkali metal aminoalkanoate was produced.Type: GrantFiled: May 6, 1980Date of Patent: April 13, 1982Assignee: Phillips Petroleum CompanyInventors: James T. Edmonds, Jr., Lacey E. Scoggins
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Patent number: 4273914Abstract: A low temperature, fast curing epoxy insulating composition is made by low temperature mixing an epoxy resin with a carboxylic acid anhydride complex, the anhydride complex being the low temperature reaction product of a selected Lewis Acid catalyst and a carboxylic acid anhydride.Type: GrantFiled: March 6, 1980Date of Patent: June 16, 1981Assignee: Westinghouse Electric Corp.Inventors: James D. B. Smith, Arthur W. Ott
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Patent number: 4250294Abstract: A polymer having aromatic or heterocyclic rings as the only structural elements said aromatic or heterocyclic rings containing at least two nitro groups is disclosed as well as a method of preparing the same. The polymers are useful as binding agents for thermo stable propellants and can be easily formed into films. They remain thermally stable up to temperatures of at least 200.degree. C.Type: GrantFiled: November 22, 1978Date of Patent: February 10, 1981Assignee: Dynamit Nobel AktiengesellschaftInventors: Rainer Hagel, Klaus Redecker
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Patent number: 4225460Abstract: Microcapsules with liquid fills containing Lewis acid catalysts, catalyst concentrates comprising slurries of the microcapsules in liquid media and a method for preparing the microcapsules and concentrates.Type: GrantFiled: June 28, 1979Date of Patent: September 30, 1980Assignee: Minnesota Mining and Manufacturing CompanyInventor: Richard G. Newell
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Patent number: 4224429Abstract: A process for the anionic polymerization or copolymerization of olefinic monomers, dienic monomers, vinyl monomers and heterocyclic monomers is described which comprises reacting at least one monomer which is an olefinic monomer, a vinyl monomer or an heterocyclic monomer with a catalyst capable of inducing anionic polymerization and an aprotic macroheterocyclic cryptant, said at least one monomer being the only medium for the reaction.The macroheterocyclic complexing agent has general formula ##STR1## in which: R.sub.1 is hydrogen, a hydrocarbon radical or alkoxycarbonyl, or the two R.sub.1 together can form a group of the general formula: ##STR2## in which A is a hydrocarbon radical,D is oxygen, sulfur, or a hydrocarbon radical, with the proviso that at leat two of the D groups are oxygen or sulfur and that if R.sub.1 is hydrogen, a hydrocarbon radical or alkoxycarbonyl, one of these two D groups is oxygen or sulfur and the other is oxygen, andn and p are integers from 1 to 3 and m is 2 or 3.Type: GrantFiled: August 11, 1977Date of Patent: September 23, 1980Assignee: Societe Nationale des Poudres et ExplosifsInventors: Jean-Marie Lehn, Francois Schue, Sylvie Boileau, Alain A. Cau, Bernd Kaempf, Jean R. Moinard, Serge F. Raynal
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Patent number: 4223102Abstract: Polyphosphazene polymers are prepared which contain units represented by the formulas: ##STR1## wherein X is --NHNHCOOR in which R is alkyl containing from 1 to 12 carbon atoms, cycloalkyl containing 3 to 12 carbon atoms or aryl; wherein X' is X or is selected from the group consisting of substituted or unsubstituted alkoxy, aryloxy, amino and mercapto groups and wherein 20.ltoreq.(a+b+c).ltoreq.50,000 per polymer.The polymers of the invention can be utilized to form films and may also be utilized in applications for moldings, coatings and the like.Type: GrantFiled: October 20, 1978Date of Patent: September 16, 1980Assignee: The Firestone Tire & Rubber CompanyInventors: William L. Hergenrother, Adel F. Halasa
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Patent number: 4206104Abstract: Resin mixtures of N,N'-dihydroxyalkyl ester substituted imidazolidinediones are especially useful in coating compositions having a low organic solvent content. The substituted imidazolidinediones have the formula ##STR1## wherein R and R' are independently hydrogen or hydrocarbon groups having from 1 to 8 carbon atoms, X is ##STR2## where the R" groups are independently hydrocarbon groups having from 1 to 17 carbon atoms.Type: GrantFiled: October 10, 1978Date of Patent: June 3, 1980Assignee: PPG Industries, Inc.Inventors: Rostyslaw Dowbenko, Ronald J. Lewarchik, William J. Birkmeyer
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Patent number: 4168364Abstract: Curable compositions are prepared comprising an epoxide compound or a mixture of epoxide compounds having an average of at least two epoxide groups per molecule, and as a curing agent, a cyanamide of an organic primary amine or a mixture of cyanamides of organic primary amines having an average of more than one cyanamide moiety per molecule. Such compositions are useful in molding, casting, laminating and coating applications.Type: GrantFiled: August 15, 1978Date of Patent: September 18, 1979Assignee: Ciba-Geigy CorporationInventors: Raymond Seltzer, Joseph F. DiPrima, William S. Durrell
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Patent number: 4159371Abstract: This specification discloses that certain polychlorinated or polybrominated aromatic hydrocarbon compounds can be incorporated in thermosetting polymer compositions to make the thermosetting compositions flame retardant without injuring the desirable physical and electrical properties of the thermosetting compositions when in the thermoset state. These polyhalogenated aromatic hydrocarbons are apparently caused to reset into the thermosetting composition, provided there is a minimum of 1 mol of a polyunsaturated monomer containing carbon to carbon unsaturation for each 3 mols of polychlorinated aromatic hydrocarbons.Type: GrantFiled: April 1, 1977Date of Patent: June 26, 1979Assignee: FMC CorporationInventors: Carl L. Wright, Harry H. Beacham
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Patent number: 4147857Abstract: An adhesively superior epoxy resin composition comprises a vicinal polyepoxide, a curing amount of an amine curing agent, and an effective amount of an additive comprising a polyoxyalkylenepolyamine-maleic anhydride condensation product having thioureide, ureide or thioformamide or formamide end groups.Type: GrantFiled: March 30, 1978Date of Patent: April 3, 1979Assignee: Texaco Development Corp.Inventors: Harold G. Waddill, Heinz Schulze
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Patent number: 4122046Abstract: Elastomeric, chemically stable, flame resistant polymers are obtained by polymerizing acrylamide or mixtures of acrylamide and at least one ethylenically unsaturated monomer copolymerizable therewith in the presence of a catalyst having the structure: ##STR1## wherein: Q = Na, K, NH.sub.4, Ca or Ban = 2 to 5 ##STR2## Me = Ti, Mn, Mo, Zr or W x = 0 to 1a, b, c each = 0 to 1a+b+c+d = valence of Me.The catalyst may be used alone as well as with UV, electron beam, ionizing radiation and combinations of these and with general redox systems known in the literature.Type: GrantFiled: June 17, 1975Date of Patent: October 24, 1978Inventor: John Joseph Waldmann