With Reactant Containing At Least One Cyclic Ether Group Patents (Class 528/365)
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Patent number: 4540752Abstract: Solvent soluble epoxy-containing compositions prepared by polymerizing ethylenically unsaturated monomers such as alkyl acrylates in the presence of the reaction product of a liquid epoxy resin such as a diglycidyl ether of bisphenol A and acrylic acid and/or methacrylic acid. These compositions are useful in the preparation of coatings.Type: GrantFiled: February 17, 1984Date of Patent: September 10, 1985Assignee: The Dow Chemical CompanyInventor: Russell T. McFadden
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Patent number: 4535148Abstract: Polyglycidyl ethers of tricyclodecane are provided which are useful as monomers in the production of cured epoxy resins. Also provided are polyallyl ethers of tricyclodecane which are novel intermediates in the preparation of the polyglycidyl ethers and a method of preparing the polyglycidyl ethers of this invention which uses the novel intermediates.Type: GrantFiled: August 1, 1984Date of Patent: August 13, 1985Assignee: Henkel CorporationInventors: Elizabeth J. Gladfelter, Edgar R. Rogier, Edward D. DiDomenico
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Patent number: 4533686Abstract: Curable compositions comprising epoxide prepolymers and polyaminobenzoates, alone, or combined with reinforcements, e.g., graphite fibers, and, optionally modified with second resins. The cured resin fiber matrix compositions exhibit high toughness combined with excellent hot/wet strength.Type: GrantFiled: August 1, 1983Date of Patent: August 6, 1985Assignee: American Cyanamid Co.Inventors: Kevin Hirschbuehler, Samuel E. Susman
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Patent number: 4530991Abstract: Hydrazides of the formula (I) or (II)N--CH.sub.2 CH.sub.2 CONHNH.sub.2).sub.3 (I)(NH.sub.2 NHCOCH.sub.2 CH.sub.2).sub.2 N--R--N--CH.sub.2 CH.sub.2 CONHNH.sub.2).sub.2 (II)are good latent curing agents for epoxy resin, in the formula (II) R is divalent hydrocarbon residue having 2-24 carbon atoms. The curing agents are useful in formulating novel storable one-package, heat-curable epoxy resin-based compositions.Type: GrantFiled: October 12, 1983Date of Patent: July 23, 1985Assignee: Ajinomoto Co., Inc.Inventors: Kiyomiki Hirai, Koji Takeuchi, Nobuo Ito, Masahiro Abe
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Patent number: 4528127Abstract: This invention is directed to a composition for coating a substrate with a powder coating and to a method of making matt finishes. The composition comprises a solid polyepoxide resin, a solid curing agent in which at least 50 weight percent of the curing agent is a 1:1 mole ratio adduct of rosin and maleic anhydride, a catalyst for promoting the reaction between the polyepoxide and the curing agent, and a pigment. The method of making matt finishes comprises (1) applying to a surface the above-described composition and (2) curing the mixture at a temperature from 140.degree. to 250.degree. C.Type: GrantFiled: August 10, 1984Date of Patent: July 9, 1985Assignee: The Dow Chemical CompanyInventors: Rolf Holderegger, Josef H. Jilek
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Patent number: 4525569Abstract: Novel solvent-based thermosetting composition comprising (a) hydroxy functional epoxy ester resin of number average molecular weight (Mn) between about 1,000 and about 5,000, comprising the reaction product of diepoxide with dicarboxylic acid and acid component comprising hydroxy functional acid and optionally further comprising fatty acid; and (b) polyfunctional, hydroxy-reactive crosslinking agent, for example, aminoplast crosslinking agent or blocked polyisocyanate crosslinking agent comprising isocyanate groups blocked by reaction with an active hydrogen bearing blocking agent. Coating composition may be formulated as primer sprayable with conventional spraying equipment.Type: GrantFiled: December 27, 1983Date of Patent: June 25, 1985Assignee: Ford Motor CompanyInventor: Panagiotis I. Kordomenos
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Patent number: 4524182Abstract: Epoxidized and subsequently cross-linked esters of alcohols which are at least dihydric and unsaturated fatty acids may be used as active processing substance in polymers, in particular elastomers, at higher temperatures, in particular at higher vulcanization temperatures, than "Factice". They may be produced by a particularly elegant one-shot reaction.Type: GrantFiled: February 21, 1984Date of Patent: June 18, 1985Assignee: Rhein-Chemie Rhein GmbHInventors: Armin Bauer, Helfried Ehrend, Klaus Morche, Karl Nutzel, Michael Sauerbier
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Patent number: 4518749Abstract: An epoxy resin composition is disclosed. The composition comprises a polyepoxide and a curing amount of a bis(hydrogen maleate) derivative of a polyoxypropylenediamine. This composition when cured produces unexpectedly superior encapsulations which are more flexible and less brittle than those of the prior art.Type: GrantFiled: November 7, 1983Date of Patent: May 21, 1985Assignee: Texaco Inc.Inventors: Harold G. Waddill, Heinz Schulze
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Patent number: 4507441Abstract: A compound containing an epoxy group, is reacted with a carboxyl compound by heating a mixture of these compounds in the presence of a benzotriazole such as unsubstituted benzotriazole or tolyltriazole as accelerator. The accelerator is particularly effective in the reaction of a carboxyl compound which is a polyester containing free carboxylic acid groups with an epoxy compound which is triglycidyl cyanurate or an epoxy resin based on bisphenol A.Type: GrantFiled: May 9, 1984Date of Patent: March 26, 1985Assignee: Scott Bader Company LimitedInventor: John O. Goring
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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: 4506048Abstract: A class of polymer precursor materials, which, under appropriate conditions, react to form cross-linked polymers, is disclosed. These materials contain a backbone segment, such as polyacrylate, having pendant therefrom mono- or disubstituted olefinic groups, such as vinyl itaconate, having specific polymerization rates. This class of materials, especially when coupled with specifically-defined oxygen-activated catalyst systems, provide paint and plastic compositions which exhibit excellent film formation, strength and durability characteristics.Type: GrantFiled: October 31, 1983Date of Patent: March 19, 1985Assignee: The Procter & Gamble CompanyInventors: Rodney D. Bush, Medford D. Robbins
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Patent number: 4497946Abstract: Epoxy phosphate-carboxyl copolymers substantially free of epoxy functionality and aqueous coatings containing the same are disclosed. These copolymers are formed by copolymerizing monoethylenically unsaturated monomers, including carboxyl-functional monomer, in an organic solvent solution containing an epoxy-functional epoxy phosphate, there being at least 5% of carboxyl-functional monomer and at least 10% of total monomers present in the copolymer. The copolymer is converted into a water soluble salt with volatile amine and phenoplast resins are preferably used to provide at least part of the curing agent.Type: GrantFiled: April 13, 1983Date of Patent: February 5, 1985Assignee: DeSoto, Inc.Inventors: Kazys Sekmakas, Raj Shah
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Patent number: 4490511Abstract: The invention provides a low-dusting anhydride curing agent blend for epoxy resins comprising a solid acid anhydride (trimellitic anhydride) and a normally liquid acid anhydride (methyl hexahydrophthalic anhydride. The invention further provides processes for preparing the anhydride blends and to curable epoxy compositions thereof.Type: GrantFiled: February 28, 1984Date of Patent: December 25, 1984Assignee: Shell Oil CompanyInventors: Simon M. Li, Fred R. Lemley
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Patent number: 4481348Abstract: The present invention describes short chain aliphatic compounds having a geminal configuration of glycidyl groups.Type: GrantFiled: January 24, 1983Date of Patent: November 6, 1984Assignee: Henkel CorporationInventors: Elizabeth J. Gladfelter, Edgar R. Rogier
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Patent number: 4480082Abstract: The reaction product of (i) an aromatic amide having the amine group of the amide attached to an aromatic ring, and (ii) a mono- or di-epoxide, has been found to be a good fortifier of epoxy resins. Epoxy resins have been found to attain increased strength and modulus (yet not brittle) by compounding:(a) a resin-forming polyepoxide,(b) an amine curing agent for (a), and(c) the above fortifier; and heat curing the mixture. Strengths as high as 130-150 MPa and modulus values to as high as 5000 MPa have been achieved yet with a ductile mode of fracture.Type: GrantFiled: July 25, 1983Date of Patent: October 30, 1984Assignee: Canadian Patents & Development LimitedInventors: Paul D. McLean, Andrew Garton, Robert F. Scott, Susan E. Gransden
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Patent number: 4477645Abstract: Novel advanced epoxy resins are prepared using phosphine or phosphonium salt initiators bearing at least one hydroxyphenyl or thiophenyl groups. These phosphonium salt initiators are novel compositions of matter. The resulting resins contain reduced quantities of extractable phosphorus containing moieties.Type: GrantFiled: July 21, 1983Date of Patent: October 16, 1984Assignee: The Dow Chemical CompanyInventors: George A. Doorakian, Joseph W. Hanafin
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Patent number: 4474943Abstract: Epoxy resins are disclosed which are the dehydrohalogenated reaction products of an epihalohydrin and a phosphoramide.Type: GrantFiled: July 25, 1983Date of Patent: October 2, 1984Assignee: The Dow Chemical CompanyInventor: James L. Bertram
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Patent number: 4465810Abstract: A class of polymer precursor materials, which, under appropriate conditions, react to form cross-linked polymers, is disclosed. These materials contain a backbone segment, preferably a polyacrylate, and have pendant therefrom (1) reactive mono- or disubstituted olefinic groups, such as vinyl or allyl itaconate, and (2) water-solubilizing groups, such as the half ester of maleic acid. This class of materials, especially when combined with specifically-defined oxygen-activated catalyst systems, provides water-based paint compositions which exhibit film formation, strength and durability characteristics comparable to those of the best solvent-based paint formulations.Type: GrantFiled: July 1, 1982Date of Patent: August 14, 1984Assignee: The Procter & Gamble CompanyInventors: Dennis C. Toepker, Sheila S. Rodriguez, Joel I. Shulman
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Patent number: 4465830Abstract: Hydrazides of the formula ##STR1## are good curing agents for epoxy resin, in the formula R.sub.1 and R.sub.2 being each hydrogen atom, C.sub.1 -C.sub.8 alkyl radical or --CH.sub.2 CH.sub.2 SCH.sub.3, R being hydrogen atom or methyl radical. The curing agents are useful in formulating novel storable one-package, heat-curable epoxy resins-based compositions.Type: GrantFiled: October 3, 1983Date of Patent: August 14, 1984Assignee: Ajinomoto Company, IncorporatedInventors: Koji Takeuchi, Nobuo Ito, Masahiro Abe, Kiyomiki Hirai
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Patent number: 4465798Abstract: A water-dilutable epoxide which is free from glycidyl ester and glycidyl ether groups, characterized in that it contains, in addition to at least one epoxide group, at least one ester group of a monocarboxylic acid and a further ester group which is vicinally arranged thereto, this further ester group having been obtained by reaction of an OH group with a polycarboxylic monoanhydride, wherein the second COOH group formed from the anhydride by the esterification occurs wholly or partially in the form of a salt with a base; processes for preparing it and the use thereof in aqueous media or media compatible with water.Type: GrantFiled: March 12, 1982Date of Patent: August 14, 1984Assignee: Hoechst AktiengesellschaftInventors: Gerd Walz, Thaddaus Wirth, Walter Sprenger
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Patent number: 4451637Abstract: A heat-curable epoxy resin composition comprising (A) an epoxy resin and (B) an acid anhydride curing agent liquid at 20.degree. C. composed of, based on acid anhydride equivalents, of 10 to 70% of a tetrabasic acid anhydride represented by the following formula ##STR1## wherein R.sub.1 represents hydrogen or a methyl group, andR.sub.2 represents hydrogen or a lower alkyl group,and 30 to 90% of a liquid alicyclic dibasic acid anhydride.Type: GrantFiled: February 1, 1983Date of Patent: May 29, 1984Assignee: Nippon Zeon Co., Ltd.Inventors: Motoyuki Yamato, Tadao Natsuume
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Patent number: 4436892Abstract: Novel imidazolides (N-acylimidazoles) of the formula I ##STR1## wherein R.sub.1 is hydrogen, C.sub.1 -C.sub.12 -alkyl or phenyl, and R.sub.2 is hydrogen, orR.sub.1 is ethyl, and R.sub.2 is methyl, orR.sub.1 is hydrogen, and R.sub.2 is phenyl or methyl, andR.sub.3 is a group of any one of the formulae II-VI ##STR2## wherein X.sub.1 is hydrogen, chlorine or NO.sub.2, and X.sub.2 is hydrogen or NO.sub.2.The imidazolides are suitable as curing agents for polyepoxide compounds.Type: GrantFiled: December 6, 1982Date of Patent: March 13, 1984Assignee: Ciba-Geigy CorporationInventors: Helmut Zondler, Friedrich Lohse, Roland Moser
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Patent number: 4435549Abstract: This invention relates to novel N-cyano amide compositions and adducts thereof of the formula ##STR1## wherein R is a simple organic moiety or a polymeric adduct with the valence of n and n is 2 or 3. The composition, per se, can be used as a curing agent for epoxy resins to form a thermoset material on heating.Type: GrantFiled: January 24, 1983Date of Patent: March 6, 1984Assignee: W. R. Grace & Co.Inventor: Shiow-Ching Lin
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Patent number: 4434256Abstract: Paint binders which are water soluble upon neutralization with bases comprising the reaction product of a polyepoxide containing reactive oxirane groups with phosphonic acids containing hydroxyl and/or vinyl groups. The paint binders when stoved at low temperatures have increased chemical resistance.Type: GrantFiled: August 10, 1982Date of Patent: February 28, 1984Assignee: Vianova Kunstharz, A.G.Inventors: Gert Dworak, Werner Staritzbichler
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Patent number: 4427835Abstract: A class of polymer precursor materials, which, under appropriate conditions, react to form cross-linked polymers, is disclosed. These materials contain a backbone segment, such as polyacrylate, having pendant therefrom mono- or disubstituted olefinic groups, such as vinyl itaconate, having specific polymerization rates. This class of materials, especially when coupled with specifically-defined oxygen-activated catalyst systems, provide paint and plastic compositions which exhibit excellent film formation, strength and durability characteristics.Type: GrantFiled: August 7, 1981Date of Patent: January 24, 1984Assignee: The Procter & Gamble CompanyInventors: Rodney D. Bush, Medford D. Robbins
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Patent number: 4412047Abstract: 1,5-Dimethyl-1,2;5,6-diepoxycyclooctane is prepared by epoxidizing 1,5-dimethylcycloocta-1,5-diene with aqueous peracetic or perpropionic acid at a temperature not exceeding 50.degree. C. and within a pH range from 1.5 to 5.5.The diepoxide according to the invention can be cured by means of curing agents for epoxide resins to give moulded materials having valuable mechanical properties. It is also suitable for use as a reactive, latent diluent.Type: GrantFiled: September 20, 1982Date of Patent: October 25, 1983Assignee: Ciba-Geigy CorporationInventors: Charles E. Monnier, Friedrich Lohse
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Patent number: 4411955Abstract: A reactive hardenable binder composition based on(A) at least one aliphatic, cycloaliphatic or aliphatic-cycloaliphatic polyepoxide wherein at least 2 epoxidized cycloaliphatic radicals are bound via an aliphatic bridge,(B) at least one polycarboxylic acid unit of formula ##STR1## having an acid number between 30 and 400 whereinR.sup.1 is a radical of an at least oligomer product selected from the group consisting of polyesters and polymers having initially free OH-groups,R.sup.2 is a radical of a dicarboxylic carbocyclic acid having a COOH-group in ortho-position to its ester bond and(C) a catalyst component of the formula ##STR2## wherein R.sup.Type: GrantFiled: November 2, 1981Date of Patent: October 25, 1983Assignee: Hoechst AktiengesellschaftInventors: Josef Mondt, Gerd Walz, Thaddaus Wirth
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Patent number: 4410680Abstract: A curable thermosetting resin, especially suitable for RIM applications, comprising a blend of(a) 100 parts by weight of a polyepoxide, particularly a normally liquid polyepoxide and more particularly a glycidyl polyether of a polyhydric phenol,(b) from about 10 to about 200 parts by weight of at least one ethylenically unsaturated monomer, especially an aromatic monomer, and preferably styrene,(c) a curing amount of an aliphatic or cycloaliphatic polyfunctional amine or a polyamide, and(d) an effective amount of an amine-compatible free-radical initiator.Type: GrantFiled: November 4, 1982Date of Patent: October 18, 1983Assignee: Shell Oil CompanyInventors: Thomas F. Brownscombe, William W. C. Hart
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Patent number: 4398013Abstract: An improved process for curing a polyepoxide composition with a polycarboxylic acid or polycarboxylic acid anhydride is described wherein the addition of a diphenyliodonium salt accelerator provides for shortened curing reaction times at lower reaction temperatures or at room temperatures if the composition is exposed to a source of ultraviolet radiation.Type: GrantFiled: October 14, 1981Date of Patent: August 9, 1983Assignee: General Electric CompanyInventor: Donald S. Johnson
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Patent number: 4391965Abstract: A modified polycarboxylic acid polyanhydride curing agent suitable for curing epoxy resins which is prepared by reacting a polycarboxylic acid anhydride with a monohydroxy compound ROH; and coating compositions, comprising the modified curing agent and a solution of an epoxy resin to be cured, which have improved storage stability.Type: GrantFiled: October 26, 1981Date of Patent: July 5, 1983Assignees: Imperial Chemical Industries PLC, Hermann Wiederhold G.m.b.H. Corp.Inventors: Hans R. Falkenburg, Siegfried Krause, Robert C. McGuiness
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Patent number: 4390661Abstract: A novel composition of matter capable of being cured to a solid resinous material obtained as a result of the reaction of (1) a coal derivative comprising a mixture of monocyclic, polycyclic, multifunctional carboxylic acids, resulting from the interaction of coal with nitric acid with (2) an oxirane, and a process for producing a solid resinous material therefrom by heating the same under pressure.Type: GrantFiled: May 28, 1982Date of Patent: June 28, 1983Assignee: Gulf Research & Development CompanyInventors: Johann G. Schulz, Daniel Margosian
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Patent number: 4379909Abstract: Coating lacquers, particularly useful for coating cans, comprise an epoxide resin, a polycarboxylic acid anhydride curing agent, an organic solvent and an accelerator derived from melamine, benzoguanamine or glycoluril. Particularly useful accelerators are the formaldehyde condensates of these materials and their ethers. The coatings are non-toxic and are cured at temperatures lower than conventional.Type: GrantFiled: October 26, 1981Date of Patent: April 12, 1983Assignees: Hermann Wiederhold GmbH Corp., Imperial Chemical Industries PLCInventors: Hans R. Falkenburg, Siegfried Krause, Robert C. McGuiness
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Patent number: 4377669Abstract: Photo-crosslinkable, novel polymers with side tricyclic imidyl groups, for example those of the formula ##STR1## are described. The novel photo-crosslinkable polymers are suitable for photo-mechanical applications, for example for the production of printing plates for the offset printing process and especially as photo-resists. They have high UV absorption and ensure a high rate of crosslinking even without the addition of photosensitizers.Type: GrantFiled: March 6, 1981Date of Patent: March 22, 1983Assignee: Ciba-Geigy CorporationInventors: Hans Zweifel, Daniel Bellus
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Patent number: 4376844Abstract: Resin-forming polyepoxides are mixed with polyoxazolidinyl compounds or polymers containing pendant oxazolidinyl groups in which the carbon atom in the 2-position of the heterocyclic ring is substituted with saturated hydrocarbon groups, such as dialkyl, or with an alkylene group forming a saturated ring with the carbon atom in the 2-position of the oxazolidinyl ring to form, in the absence of water, a stable composition which can be stored in closed containers for months without undergoing gelation. When such compositions are spread into films and the films exposed to moisture at ambient temperature, e.g., to ambient air having a relative humidity of at least 20% and temperature of about 15.degree. to 25.degree. C., the polymer serves to react with and cure the polyepoxide.Type: GrantFiled: January 20, 1982Date of Patent: March 15, 1983Assignee: Rohm and Haas CompanyInventors: William D. Emmons, Wayne E. Feely
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Patent number: 4374963Abstract: This invention relates to a heat curable composition comprising(a) a liquid, ethylenically unsaturated monomer, oligomer or prepolymer of the formula: ##STR1## wherein R is H or CH.sub.3, R.sub.1 is an organic moiety and n is at least 2,(b) an epoxy resin containing at least two ##STR2## groups, and (c) a thermal initiator member of the group consisting of(1) a substituted or unsubstituted diaryliodonium salt in combination with a free radical initiator,(2) a BF.sub.3 adduct,(3) a BF.sub.3 adduct in combination with a free radical initiator, and(4) dicyandiamide in combination with a free radical initiator.The system is stable at ordinary temperatures, but on heating the thermal initiator catalyzes the curing of the acrylate and the epoxy resin.Type: GrantFiled: November 2, 1981Date of Patent: February 22, 1983Assignee: W. R. Grace & Co.Inventors: Charles R. Morgan, David R. Kyle
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Patent number: 4371688Abstract: In accordance with the present invention, there is provided a substituted cyclohexane-1,2-dicarboxylic anhydride (CHDA) having the structural formula: ##STR1##Type: GrantFiled: November 19, 1981Date of Patent: February 1, 1983Assignee: Milliken Research CorporationInventor: Patrick D. Moore
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Patent number: 4368314Abstract: A curable composition comprising:(A) at least one spiro-orthoester compound having at least one spiro-orthoester group represented by the formula: [I] ##STR1## wherein n is an integer of 3-5, (B) at least one curing agent selected from the group consisting of organic polybasic acids and their anhydrides,(C) optionally, an epoxy compound having at least one epoxy group, and(D) optionally a cationic polymerization catalyst when the composition comprises ingredient (C).Said composition is small in shrinkage on curing, and provides a cured product of high dimensional accuracy when used as a molding material.Type: GrantFiled: August 24, 1981Date of Patent: January 11, 1983Assignee: Toagoesi Chemical Industry Co., Ltd.Inventors: Takeshi Endo, Kiyokazu Mizutani, Takahisa Ogasawara
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Patent number: 4360649Abstract: A curable resin composition comprising an epoxy resin, a hardener and an epoxy compound-dialkylamine adduct as a latent hardener. The composition is excellent in storage stability at ambient temperatures and rapidly curable under heating conditions, and is usable as adhesives, paints, molding materials, casting materials and so on.Type: GrantFiled: April 15, 1981Date of Patent: November 23, 1982Assignee: Sumitomo Chemical Company, LimitedInventors: Kunimasa Kamio, Koichi Okuno, Satoru Haraguchi, Hiroyuki Yamaguchi, Koichi Ohashi
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Patent number: 4358571Abstract: Imidazole or substituted imidazole is adducted with acrylate ester, an epoxy, or an isocyanate followed by neutralization with lower fatty acid or alkylene or aromatic dicarboxylic acid. The product is a curing agent which is combined with an epoxy resin to form a powder coating.Type: GrantFiled: March 10, 1981Date of Patent: November 9, 1982Assignee: Mobil Oil CorporationInventors: Marvin L. Kaufman, George F. Salathe
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Patent number: 4352913Abstract: (Dimethylaminoalkyl)carboxylic and -carbamic acid esters and (dimethylaminoalkyl) ethers and ureas are compounds which are especially suitable for use as amine curing agents for polyepoxide compounds. They impart longer curing times to the curable mixtures and thus good processing properties, especially when the mixtures are used as adhesives. In addition, the mechanical properties are often improved. Further, these compounds afford advantages when used as curing agents on account of their low volatility.Type: GrantFiled: August 21, 1981Date of Patent: October 5, 1982Assignee: Ciba-Geigy CorporationInventors: Helmut Zondler, Roland Moser
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Patent number: 4345059Abstract: Epoxy resins are rendered fire retardant by the addition thereto of a 3-hydroxyalkylphosphine oxide. Other halogen containing flame retardants may or may not be present in the composition. Mixtures containing a brominated epoxide and/or a halogenated phosphine oxide provide a high level of flame retardance at low levels of the additive. The epoxy resins may be heat cured in the presence of an acid anhydride or amine to form a polymer having the phosphine oxide incorporated in the polymer molecule.Type: GrantFiled: May 18, 1981Date of Patent: August 17, 1982Assignee: FMC CorporationInventors: Edward R. Fretz, Jr., Joseph Green
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Patent number: 4343915Abstract: A polyspirolactone polymer particularly suitable for protective surface coatings comprises a spirolactone structure in the polymer structure adapted to be cross-linked with a primary or secondary amine compound to produce a thermoset protective coating.Type: GrantFiled: August 12, 1981Date of Patent: August 10, 1982Assignee: SCM CorporationInventor: Kirk J. Abbey
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Patent number: 4338225Abstract: A functionally terminated polybutadiene polymer is reacted with an epoxide to produce an epoxide terminated polybutadiene. A toughening agent and a peroxide free radical initiator are mixed with the epoxy terminated polybutadiene, and upon reaction a tough thermoset resin is produced having advanced chemical, electrical, and thermomechanical properties. Particular improvements are in the resistant-to-moisture and the tensile strain-to-failure properties.Type: GrantFiled: August 4, 1980Date of Patent: July 6, 1982Assignee: The Boeing CompanyInventor: Clyde H. Sheppard
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Patent number: 4332928Abstract: Polyaminopolyamide compounds are provided which comprise the reaction product of at least one carboxylic acid anhydride selected from mono-, di-, and poly-anhydrides with at least one polyamine of the formula:H.sub.2 N--R--(NH.sub.2).sub.xin an amount of at least about 2 moles per mole of carboxylic acid anhydride group wherein R is selected from an aromatic group containing from about 13 to about 34 carbon atoms; a cycloalkyl group containing from about 13 to about 34 carbon atoms; and an alkyl group containing from about 9 to about 25 carbon atoms, which may further contain at least one heteroatom selected from oxygen, nitrogen, and sulfur; and x is an integer of from about 2 to about 9, preferably from about 2 to about 5.Type: GrantFiled: March 3, 1981Date of Patent: June 1, 1982Assignee: Milliken Research CorporationInventors: Edward W. Kluger, Calvin D. Welch
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Patent number: 4327200Abstract: Binders water-dilutable upon neutralization with inorganic and/or organic acids comprising the reaction product of (A) resins having at least 2 1,2-epoxy groups per molecule and an epoxy equivalent of at least 160; and (B) a semiester of a dicarboxylic acid and an N-2-hydroxyalkyloxazolidine, and a process for the formation of the binders, is described. The binders have sufficient basic groups for neutralization with acids to provide water dilutability, as well as the functional groups required for crosslinking of the binders. The binders upon stoving provide films with good resistance characteristics and have reduced losses.Type: GrantFiled: October 29, 1980Date of Patent: April 27, 1982Assignee: Vianova Kunstharz, A.G.Inventors: Wolfgang Leitner, Georg Pampouchidis, Anton Bleikolm
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Patent number: 4324822Abstract: Disclosed is a paint for a can which comprises an epoxy resin component formed by condensation of a dihydroxyl compound with an epihalohydrin and a curing agent component, said epoxy resin component containing terminal .alpha.-glycol groups at a concentration of 0.05 to 0.60 equivalent per Kg of the resin.This paint provides a coating capable of retaining a high adhesion even with the lapse of time and resisting a severe treatment such as retort sterilization.When this paint is applied to a bonded can, leakage of the content from the side seam with the lapse of time can be effectively prevented. When this paint is applied to a can provided with an easy-open can lid, occurrence of the enamel feather can be prevented at the time of opening the lid.Type: GrantFiled: July 3, 1980Date of Patent: April 13, 1982Assignee: Toyo Seikan Kaisha Ltd.Inventors: Seishichi Kobayashi, Tatsuo Mori, Akihiko Morofuji
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Patent number: 4321352Abstract: Novel metal-containing ionic cured rubbers are obtained by reacting a partially neutralized liquid rubber which has been obtained by partial neutralization, with metal ion, of carboxyl-terminated liquid elastomerizable polymers, with bisepoxide and dibasic acid anhydride.Type: GrantFiled: September 29, 1980Date of Patent: March 23, 1982Assignee: Okura Kogyo Kabushiki KaishaInventor: Hideaki Matsuda
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Patent number: 4321351Abstract: The invention relates to a process in which, as essential components, liquid epoxy resins, carboxylic anhydrides, zinc fluoroborate complex compounds, water, tetrahydropyrane and compounds (X) which contain OH groups, COOH groups or both groups together, are reacted. Selective choice of the special quantity ratios results in reaction mixtures which, at low temperature (e.g. at 100.degree. C.), require only short moulding times and have a sufficiently long pot life. As the reaction is only slightly exothermic, the process can be used very advantageously for encapsulating electronic components.Type: GrantFiled: October 27, 1980Date of Patent: March 23, 1982Assignee: Ciba-Geigy CorporationInventors: Paul Zuppinger, Dieter Baumann
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Patent number: 4320223Abstract: Novel, 1,2-Epoxy Resin products using unique polycyclic, aromatic, polycarboxylic acid products as crosslinking agents display satisfactory electrical properties and good Barcol hardness values. The process for preparing these novel resin products involves admixing: a 1,2-epoxy resin containing on the average more than one 1,2-epoxy groups per molecule and the acid product derived from the nitric acid oxidation of naturally occurring solid carbonaceous material along with a suitable accelerator. The mixture is then subjected to a precure step which involves heating at temperatures between 50.degree. and 150.degree. C. for from about five minutes to about six hours. The mixture is thereafter subjected to suitable molding conditions.Type: GrantFiled: November 24, 1980Date of Patent: March 16, 1982Assignee: Gulf Research & Development Corp.Inventors: Johann G. Schulz, Walter P. Barie, Jr., James T. Eurich
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Patent number: 4314930Abstract: Described herein is a molding composition comprising: ##STR1## wherein n is a number having an average value of about 1.5 to less than about 4, m is equal to the free valence of R less the average value of n, R is the hydroxyl-free residue of an organic polyol which contained from 2 to 4, inclusive, hydroxyl groups, OH, in formula (I), (b) maleic anhydride, (c) an epoxide containing two or more 1,2-epoxide radicals, (d) an ethylenically unsaturated monomer which forms a liquid homogeneous mixture with the half ester, maleic anhydride and epoxide, and (e) one or more reinforcing fibers having a melting point or a glass transition temperature above about 130.degree. C.Type: GrantFiled: July 22, 1980Date of Patent: February 9, 1982Assignee: Union Carbide CorporationInventor: Hugh C. Gardner