Carboxylic Acid Or Derivative Devoid Of Heavy Metal Atom Dnrm Patents (Class 523/455)
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Patent number: 4812503Abstract: A novel paint composition comprising an organic solvent-based, organic solid film-forming component and an organic volatile corrosion inhibitor.Type: GrantFiled: December 11, 1987Date of Patent: March 14, 1989Assignee: Ronco Laboratories, Inc.Inventor: Maurice S. Baseman
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Patent number: 4812535Abstract: A solvent-based thermosetting coating composition comprising a hydroxy functional epoxy-polyester graft copolymer and blocked polyisocyanate crosslinking agent. The coating composition may be formulated as 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 epoxy-polyester graft copolymer is the product of polymerization of lactone monomers in the presence of hydroxy functional epoxy ester resin precursor. The precursor resin is the reaction product of diepoxide chain extended with diphenol and chain terminated with acid component comprising primary hydroxy functional acid. The polymerization of the lactone monomers is carried out at a temperature between about 50.degree. C. and about 300.degree. C.Type: GrantFiled: September 3, 1987Date of Patent: March 14, 1989Assignee: E. I. DuPont de Nemours and CompanyInventors: Andrew H. Dervan, Panagiotis I. Kordomenos
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Patent number: 4808652Abstract: Crosslinker compositions comprising an etherified amino resin, a styrene allyl alcohol copolymer and an epoxy resin. The crosslinker compositions are used to cure hydroxy functional coating vehicles to provide cured coatings resistant to staining.Type: GrantFiled: June 8, 1988Date of Patent: February 28, 1989Assignee: Monsanto CompanyInventor: Kenneth J. Gardner
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Patent number: 4808642Abstract: This invention relates to a chlorine-containing resin molding characterized by its stabilization by aminocarboxylic acid and from which molding substantially no metallic ion is detected, and to material for use with the chlorine-containing resin molding consisting of 100 parts by weight of chlorine-containing resin and 0.5-5.0 parts by weight of aminocarbolyxic acid. According to the molding and the material for use therewith, there is no possibility of metallic ion dissolving from the molding in which a metallic stabilizer is conventionally used, with the result that the molding finds wide application in the industrial field related with electric parts including a semiconductor as a main item, medical treatment, chemicals and pharmaceuticals, and food stuffs, all subject to adverse effects by dissolution of metallic ion. Consideration for application of a nonmetallic agent is also given to the use of a coloring agent and a lubricant with respect to the molding and the material for use therewith.Type: GrantFiled: April 25, 1986Date of Patent: February 28, 1989Assignee: Takiron Co., Ltd.Inventors: Hideki Kitada, Masami Takahashi, Toshiyuki Yagi, Masaaki Sukeda, Tadashi Nakayama
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Patent number: 4794149Abstract: Solvent-based thermosetting coating composition comprising a hydroxy functional epoxy ester resin, linear polycaprolactone diol and blocked polyisocyanate crosslinking agent. The coating composition may be formulated as hot sprayable, high solids coating composition suitable for use as chip resistant automotive vehicle primer adapted 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 epoxy ester resin is the reaction product of diepoxide chain extended with aliphatic diol and chain terminated with acid component comprising primary hydroxy functional acid.Type: GrantFiled: September 3, 1987Date of Patent: December 27, 1988Assignee: E. I. Du Pont De Nemours and CompanyInventors: Andrew H. Dervan, Dennis J. Grebur, Panagiotis I. Kordomenos
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Patent number: 4788233Abstract: A modified epoxy resin composition having improved flexibility which comprises a reaction product of an epoxy resin and a synthetic rubber reactive with an epoxy resin in the presence of a nonionic or anionic surfactant, which has uniform and stable dispersion state of the rubber in epoxy resin without increase of viscosity. The epoxy resin composition is useful as a material for adhesives and coating agents.Type: GrantFiled: November 18, 1987Date of Patent: November 29, 1988Assignee: Sunstar Giken Kabushiki KaishaInventors: Toshimori Sakakibara, Takahiro Nakano, Tatsuya Okuno
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Patent number: 4786691Abstract: A solvent-based thermosetting coating composition comprising a hydroxy functional epoxy ester resin, and polycaprolactone diol, and blocked polyisocyanate crosslinking agent. The coating composition may be formulated as hot sprayable, high solids coating composition suitable for use as chip resistant automotive vehicle primer adapted 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 resin is formed by reaction of diepoxide chain extended substantially simultaneously with diphenol and dicarboxylic acid and chain terminated with acid component comprising primary hydroxy functional acid.Type: GrantFiled: August 7, 1987Date of Patent: November 22, 1988Assignee: E. I. Du Pont de Nemours and CompanyInventors: Andrew H. Dervan, Panagiotis I. Kordomenos
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Patent number: 4778861Abstract: A hydroxy functional epoxy-polyester graft copolymer and solvent-based thermosetting coating composition comprising said copolymer and blocked polyisocyanate crosslinking agent. The coating composition may be formulated as hot sprayable, high solids coating composition suitable for use as chip resistant automotive vehicle primer adapted 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 epoxy-polyester graft copolymer is the product of polymerization of certain lactone monomers in the presence of hydroxy functional epoxy ester resin precursor. The precursor resin is the reaction product of diepoxide with aliphatic diol and, subsequently, with acid component comprising primary hydroxy functional acid. The polymerization of the lactone monomers is carried out at a temperature between about 50.degree. C. and about 300.degree. C.Type: GrantFiled: August 7, 1987Date of Patent: October 18, 1988Assignee: E. I. Du Pont de Nemours and CompanyInventors: Andrew H. Dervan, Dennis J. Grebur, Panagiotis I. Kordomenos
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Patent number: 4767017Abstract: A filament-wound pressure vessel constructed of a rigid composite of an epoxy resin matrix reinforced with continuous filaments of a p-aramid coated with an adhesion modifier.Type: GrantFiled: April 16, 1987Date of Patent: August 30, 1988Assignee: E. I. Du Pont de Nemours and CompanyInventors: Francis M. Logullo, Sr., Yun-Tai Wu, George E. Zahr
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Patent number: 4753826Abstract: An abrasion resistant polymer and coating composition comprising from about 24 to 48 wt. % of a liquid epoxy resin, from about 24 to 48 wt. % of a blocked isocyanate prepolymer, from about 4.2 to 12 wt. % of a rheological additive, from about 10 to 14 wt. % of a curing agent, from about 1 to 4 wt. % of a plasticizer, and from about 0.1 to 0.6 wt. % of a silane. The coating composition is especially effective in resisting abrasion from solids entrained in fluids in fluid flow environments.Type: GrantFiled: February 27, 1987Date of Patent: June 28, 1988Assignee: Palmer International, Inc.Inventor: G. Fred Lauman
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Patent number: 4754002Abstract: Solvent-based thermosetting coating composition comprising a hydroxy functional epoxy ester resin, linear polycaprolactone diol and blocked polyisocyanate crosslinking agent. The coating composition may be formulated as hot sprayable, high solids coating composition suitable for use as chip resistant automotive vehicle primer adapted 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 epoxy ester resin is the reaction product of diepoxide chain extended with aliphatic diol and chain terminated with acid component comprising primary hydroxy functional acid.Type: GrantFiled: December 16, 1985Date of Patent: June 28, 1988Assignee: E. I. Du Pont de Nemours and CompanyInventors: Panagiotis I. Kordomenos, Andrew H. Dervan, Dennis J. Grebur
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Patent number: 4751258Abstract: A sizing agent for carbon fibers comprises a water-based dispersion of a mixture of constituents A, B, C and D to be described below at weight ratios of (constituent A)/(constituents B+C)=60/40 to 90/10, (constituent B/constituent C)=2/1 to 7/1, and (constituents A+B+C)/(constituent D)=85/15 to 97/3 where the constituent A is phenyl epoxy resin or aromatic nitrogen-containing epoxy resin, the constituent B is shown by the following expression (I): ##STR1## where X is a benzene residue or a diphenyl residue, n is an integer in the range of 1 to 5, Y is ##STR2## where q is an integer in the range of 4 to 50, p is 0 or an integer in the range of 1 to 5, l and m are such that 1/2.ltoreq.m/l.ltoreq.Type: GrantFiled: June 6, 1986Date of Patent: June 14, 1988Assignee: Takemoto Yushi Kabushiki KaishaInventor: Hiroshi Minami
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Patent number: 4740566Abstract: A thermosetting high gloss color-keyed primer-surfacer comprises 50-70% by weight of a film-forming component consisting essentially of, by weight, 40-70% of a polyester polyol formed by reaction of dimethyl 1,4-dicyclohexanedicarboxylate, dicarboxylic acids, and branched-chain glycols; 20-40% of an aminoplast resin; and 5-10% of an epoxy resin.Type: GrantFiled: May 23, 1986Date of Patent: April 26, 1988Assignee: E. I. Du Pont de Nemours and CompanyInventor: Henry S. Tremper, III
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Patent number: 4739019Abstract: A curable composition is composed of(a) one or more epoxide group containing materials containing at least two epoxide groups per molecule;(b) a positive amount of an effectively thermoplastic polyester, which does not react into the curable composition and is present as a blended ingredient, which does not exceed 40 percent by weight based on the total weight of the epoxide and polyester components of the composition, said polyester having a weight average molecular weight of from about 1,000 to about 8,000, being non-reactive with the one or more epoxide group containing materials and being insoluble in the one or more epoxide group containing materials of (a); and(c) a curing agent adapted to cure the one or more epoxide group containing materials of (a).Type: GrantFiled: December 8, 1986Date of Patent: April 19, 1988Assignee: PPG Industries, Inc.Inventors: Raymond F. Schappert, Robert M. Piccirilli
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Patent number: 4721770Abstract: N-Cyanocarboxylic acid amide derivatives which contain two or three ##STR1## groupings in the molecule are useful as hardeners for epoxide resins.Type: GrantFiled: June 24, 1986Date of Patent: January 26, 1988Assignee: Ciba-Geigy CorporationInventors: Friedrich Stockinger, Friedrich Lohse, Roland Moser
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Patent number: 4720517Abstract: N-hydroxyiminodiacetic and dipropionic acids and esters thereof corresponding to the formula ##STR1## are effective in stabilizing various organic materials against oxidative, thermal and actinic degradation, said derivatives being particularly effective as color improvers and process stabilizers in synthetic polymers containing phenolic antioxidants and/or metal salts of fatty acids and as stabilizers in lubricants.Type: GrantFiled: November 24, 1986Date of Patent: January 19, 1988Assignee: Ciba-Geigy CorporationInventors: Ramanathan Ravichandran, Thomas E. Snead
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Patent number: 4719253Abstract: New aqueous dispersible cathodic electrocoat resin compositions containing both secondary amine and 1,3-benzoxazine functionality cure by oxazine self-additon and/or oxazine/amine reactions. Such compositions are prepared in a multi-stage process to give corrosion and chemical resistant coatings which exhibit good package (tank and feed) stability.Type: GrantFiled: August 1, 1986Date of Patent: January 12, 1988Assignee: The Glidden CompanyInventors: Edward T. Turpin, David T. Thrane
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Patent number: 4708995Abstract: A hydroxy functional epoxy-polyester graft copolymer and solvent-based thermosetting coating composition comprising said copolymer and blocked polyisocyanate crosslinking agent. The coating composition may be formulated as 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 epoxy-polyester graft copolymer is the product of polymerization of lactone members in the presence of hydroxy functional epoxy ester resin precursor. The precursor resin is the reaction product of diepoxide chain extended with diphenol and chain terminated with acid component comprising primary hydroxy functional acid. The polymerization of the lactone monomers is carried out at a temperature between about 50.degree. C. and about 300.degree.Type: GrantFiled: November 14, 1985Date of Patent: November 24, 1987Assignee: E. I. Du Pont de Nemours and CompanyInventors: Panagiotis I. Kordomenos, Andrew H. Dervan, Dennis J. Grebur
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Patent number: 4705647Abstract: A copper-type conductive coating composition which comprises:(A) a copper powder with hydrogen loss of at most 0.2% by weight or a copper powder with its oxidized surface layer removed by treatment with an organic carboxylic acid,(B) a coating binder resin, and(C) an antioxidant selected from triazoles represented by the formula: ##STR1## wherein Y is a hydroxyl group, a hydrogen atom, a C.sub.1 -C.sub.18 alkyl group or a halogen atom, and a is an integer of 1 to 3, and trithiophosphites represented by the formula: ##STR2## wherein each of R.sub.1 to R.sub.3 is a C.sub.1 -C.sub.30 alkyl group or an allyl group.Type: GrantFiled: June 26, 1986Date of Patent: November 10, 1987Assignee: Mitsubishi Petrochemical Co., Ltd.Inventors: Shoji Yamaguchi, Kimiko Yamada
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Patent number: 4687795Abstract: Polyester compositions having present a small amount of a salt of salicyclic acid and a cation of a metal from Group IA of the periodic Table of Elements, for example sodium salicylate, have been found to have good crystalization and other properties.Type: GrantFiled: December 24, 1984Date of Patent: August 18, 1987Assignee: Allied CorporationInventors: Steven R. Dunkle, John C. Haylock
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Patent number: 4684677Abstract: Rapid air drying thermosetting solvent solution primer compositions are disclosed which comprise volatile polar organic solvent having dissolved therein a fluorocarbon polymer in an amount of from 20% to 45% of total resin solids, a solvent-soluble, hydroxy-functional copolymer of monoethylenically unsaturated monomers containing from 5% to 30% of hydroxy-functional monoethylenic monomer in an amount of from 0.7 to 1.5 parts of hydroxy-functional copolymer per part of fluorocarbon resin, a resinous polyepoxide in an amount providing from 0.1 to 0.6 part of polyepoxide per part of hydroxy-functional copolymer, and a curing agent reactive with hydroxy functionality, preferably an aminoplast resin, for curing the hydroxy-functional acrylic copolymer and the polyepoxide. The primer is pigmented with inorganic pigment in a weight ratio with respect to the resin solids of from 0.2:1 to 0.8:1.Type: GrantFiled: February 13, 1986Date of Patent: August 4, 1987Assignee: DeSoto, Inc.Inventors: Clark A. Higginbotham, James W. Wichmann
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Patent number: 4678821Abstract: A rigid composite of an epoxy resin matrix reinforced with continuous filaments of a p-aramid coated with an adhesion modifier.Type: GrantFiled: May 31, 1985Date of Patent: July 7, 1987Assignee: E. I. Du Pont de Nemours and CompanyInventors: Francis M. Logullo, Sr., Yun-Tai Wu, George E. Zahr
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Patent number: 4673710Abstract: Plastisols comprising a finely divided vinyl chloride polymer and the usual fillers, additives, and plasticizers, to which plastisols is added, as an adhesion promoter, an adduct formed between an epoxy compound and the condensation product formed between (1) a polyaminoamide, comprising polymerized fatty acids and an excess of a polyalkylene polyamine and (2) a carboxylic acid or an ester thereof, and methods for coating or adhering a substrate with such plastisols by applying said plastisols to the substrate and baking at temperatures of 90.degree. C. and up.Type: GrantFiled: January 28, 1985Date of Patent: June 16, 1987Assignee: Schering AGInventors: Christian Burba, Ulrich Goeke, Norbert Esper
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Patent number: 4663079Abstract: A copper-type conductive coating composition which comprises:(A) a copper powder with hydrogen loss of at most 0.2% by weight or a copper powder with its oxidized surface layer removed by treatment with an organic carboxylic acid,(B) a coating binder resin, and(C) an antioxidant selected from triazoles represented by the formula: ##STR1## wherein Y is a hydroxyl group, a hydrogen atom, a C.sub.1 -C.sub.18 alkyl group or a halogen atom, and a is an integer of 1 to 3, and trithiophosphites represented by the formula: ##STR2## wherein each of R.sub.1 to R.sub.3 is a C.sub.1 -C.sub.30 alkyl group or an allyl group.Type: GrantFiled: June 27, 1985Date of Patent: May 5, 1987Assignee: Mitsubishi Petrochemical Co., Ltd.Inventors: Shoji Yamaguchi, Kimiko Yamada
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Patent number: 4657947Abstract: A coating composition which comprises(A) a polyol resin obtained by the reaction of a prepolymer of epoxy resin and polyhydroxy penolic compound such as(i) poly-nuclear polyhydroxy phenols having adjacent hydroxy groups(ii) polyol esters of polyhydroxy phenolic carboxylic acids having adjacent hydroxy groups, and(iii) a mixture thereof, and one or more compound having one or more amino groups reactive with epoxy group;(B) a compound having more than one isocyanate group or groups which change to isocyanate groups under hardening condition, and(C) a bituminous material and/or its substitute.This coating composition can be coated on rusty metal surfaces.Type: GrantFiled: March 6, 1985Date of Patent: April 14, 1987Assignee: Asahi Denka Kogyo K.K.Inventors: Hidehiko Kojo, Koji Akimoto
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Patent number: 4657953Abstract: A coating composition comprises(A) a polyol resin obtained by the reaction of a prepolymer of epoxy resin and phosphorus compound having at least one P--OH bond, such as acids of phosphorus, and one or more compounds having one or more amino groups reactive with the epoxy group,(B) a compound having more than one isocyanate groups or groups which change to isocyanate groups under hardening condition, and(C) a bituminous material and/or its substitute.This coating composition can be coated on rusty metal surfaces.Type: GrantFiled: June 18, 1985Date of Patent: April 14, 1987Assignee: Asahi Denka Kogyo K.K.Inventors: Hidehiko Kojo, Koji Akimoto
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Patent number: 4637197Abstract: Methods and compositions are disclosed for absorbing moisture when moisture constraints are present. The moisture absorbing compositions include a curable epoxy resin, a curing agent, and an anhydride of a carboxylic acid. In one embodiment, the anhydride component is present in an amount sufficient both to cure the resin and to absorb the moisture. In other embodiments, a separate curing agent is included. Methods employing such compositions as adhesives or coatings, particularly in electronic device packaging, also are disclosed.Type: GrantFiled: December 26, 1985Date of Patent: January 20, 1987Assignee: Epoxy Technology, Inc.Inventor: Charles E. Banfield
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Patent number: 4636535Abstract: Curable compositions are provided comprising epoxide prepolymers and polyaminobenzoates, alone, or combined with reinforcements, e.g., graphite fibers, and, optionally modified with second resins. The cured fiber resin matrix compositions exhibit high toughness combined with excellent hot/wet strength.Type: GrantFiled: January 16, 1985Date of Patent: January 13, 1987Assignee: American Cyanamid CompanyInventors: David W. Wang, Jeanne L. Courter, Dalip K. Kohli
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Patent number: 4614674Abstract: Addition of waxes or wax-like substances, in conjunction with metal salts or metal complexes of organic compounds, to powder coating compositions based on epoxy resins and carboxyl-terminated polyesters affords a matting effect without substantially impairing the other properties of said coating composition.Type: GrantFiled: May 3, 1985Date of Patent: September 30, 1986Assignee: Ciba-Geigy CorporationInventor: Horst Lauterbach
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Patent number: 4609693Abstract: Low styrene emission vinyl ester resin compositions containing a drying oil as an adhesion promoter, such as linseed oil. Some VER composition exhibits desirable physical properties such as low styrene emission and excellent adhesive bond strength.Type: GrantFiled: June 3, 1985Date of Patent: September 2, 1986Assignee: The Dow Chemical CompanyInventors: John A. Schols, KeeChung Yu
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Patent number: 4604314Abstract: Improved printed circuit boards of laminated thermosetting sheets with epoxy resin as the bonding agent contain for inhibiting copper migration 0.1% to 10% N,N'-bis-salicyloyl hydrazine, based on the weight of the hardened epoxy resin.Type: GrantFiled: January 25, 1985Date of Patent: August 5, 1986Assignee: Siemens AktiengesellschaftInventors: Wolfgang von Gentzkow, Maximilian Hodl, Wolfgang Kleeberg, Helmut Markert
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Patent number: 4598108Abstract: The invention provides a water-reducible coating composition comprising an epoxy resin, an amino group-containing curing agent for the epoxy resin and a watersoluble organic compound which occurs in at least 2 tautomeric forms, in one of which a labile hydrogen atom is linked to a carbon atom and which compound contains at least one carbonyloxy group or sulfonyl group.Type: GrantFiled: June 27, 1985Date of Patent: July 1, 1986Assignee: Akzo NVInventor: Cornelis A. M. Hoefs
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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: 4582556Abstract: A copper plastic laminate is provided having a high bond strength. The copper is selected from the group consisting of copper and copper alloys and has on its surface a uniform glassy-like, substantially pore-free coating of copper phosphate. A plastic encapsulating material containing a mold release agent is adhesively bonded to the copper.Type: GrantFiled: May 31, 1984Date of Patent: April 15, 1986Assignee: Olin CorporationInventors: Sheldon H. Butt, Edward F. Smith, III, F. Dennis Gyurina
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Patent number: 4575524Abstract: Cathodic electrodepositable resin compositions particularly adapted for use as film forming compositions in cathodic electrodeposition processes. The resin is the reaction product of a modified epoxy formed by reacting a polyepoxide with a water soluble or water miscible polyol, an excess of polyamine, and a fatty acid. The resin, when combined with a cross-linking agent and solubilized in an aqueous electrodeposition bath, is capable of depositing high build coatings in a short period of time with a low cross-linking temperature in a cathodic electrodeposition process. The resin compositions are salted with an acid and used as components of aqueous cathodic electrodeposition baths.Type: GrantFiled: January 29, 1985Date of Patent: March 11, 1986Assignee: Inmont CorporationInventors: Terry L. Anderson, Tapan K. Deb Roy, Ding Y. Chung
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Patent number: 4572870Abstract: A coating composition containing 10-80% by weight of binder and 20-90% by weight of an organic solvent in which the binder is(1) a chlorosulfonated ethylene vinyl acetate polymer,(2) an epoxy resin,(3) a polyamine curing agent, and(4) a bicyclic amidine.The composition is used as a primer or topcoating for metal substrates and curings at ambient temperatures and provides a finish that has excellent adhesion to the substrate and is tough, durable, weatherable and when pigmented with electrically conductive pigments, can be used as a coating for electrodes used in electrochemical reactions such as grids used in lead acid storage batteries.Type: GrantFiled: December 28, 1984Date of Patent: February 25, 1986Assignee: E. I. Du Pont de Nemours and CompanyInventor: Joseph A. Vasta
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Patent number: 4556683Abstract: A pigment dispersing resin which essentially consists of a modified polymer obtained by introducing at least one of acidic groups and basic groups into a polymeric polyol of star-shaped structure prepared by reacting a polyol having at least four hydroxyl groups per molecule with an epoxide, the resin being compatible with pigments and vehicle resins, and a pigment dispersed paste which comprises the pigment dispersing resin and a pigment, the pigment dispersed paste being low in viscosity over a long period of time.Type: GrantFiled: August 18, 1983Date of Patent: December 3, 1985Assignee: Nippon Paint Co., Ltd.Inventors: Yoji Hirasawa, Shoji Ikeda
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Patent number: 4552907Abstract: Epoxy resin compositions including an epoxy resin, a hardener and an additive containing a rust preventing film forming component are provided. The additive is lanolin and/or a lanolin derivative. Optionally, the composition also includes a secondary additive selected from organosilicon compounds, organoaluminum compounds, organotitantium compounds, organotin compounds, liquid rubber having functional groups at both ends of the molecule, petroleum lubricating oils or Japan wax. These epoxy resin compositions, when used as encapsulating materials, prevent moisture and impurities from invading the surface of the device.Type: GrantFiled: July 27, 1984Date of Patent: November 12, 1985Assignee: Kabushiki Kaisha Toyota Chuo KenkyushoInventors: Shigeyuki Sato, Mitsumasa Matsushita
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Patent number: 4548964Abstract: Disclosed is a flame-retardant polyester resin composition comprising (1) a reinforced resin composition obtained by melt blending (A) a polyethylene terephthalate resin, (B) glass fibers, a combination of (C) at least one flame retarder having a specified chemical structure and (D) hexabromobiphenyl ether used in specific proportions, (E) antimony trioxide and optionally (F) an inorganic filler; and (2) (G) at least one ester compound subsequently added to the reinforced resin composition, the ester compound being derived from pentaerythitol and a fatty acid. This flame-retardant polyester resin composition can yield molded articles having excellent mechanical properties and flame retardancy, and exhibits good releasability of the molded article and rapid feed into the molding machine at the time of molding.Type: GrantFiled: December 10, 1984Date of Patent: October 22, 1985Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Tomohiko Yoshida, Hiroshi Mori
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Patent number: 4529756Abstract: Zinc rich, solvent resistant and corrosion resistant coatings are prepared by blending zinc pigment, a thermoplastic polyhydroxyether and an organic dianhydride or polyanhydride.Type: GrantFiled: October 19, 1984Date of Patent: July 16, 1985Assignee: Union Carbide CorporationInventor: George A. Salensky
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Patent number: 4528306Abstract: A soft vinyl chloride resin composition having a light weight and a superior abrasion resistance and lusterless surface is provided, which composition is obtained by blending 100 parts by weight of a vinyl chloride copolymer consisting of 99.0 to 99.95% by weight of vinyl chloride and 1.0 to 0.05% by weight of a polyethylene glycol diacrylate or a polyethylene glycol dimethacrylate both having 4 to 50 polymerization units of ethylene glycol, mainly with (a) 5 to 100 parts by weight of a filler having a specific gravity of 0.7 or less and a compressive strength of 70 Kg/cm.sup.2 or higher and (b) 30 to 150 parts by weight of a plasticizer.Type: GrantFiled: April 20, 1984Date of Patent: July 9, 1985Assignee: Chisso CorporationInventors: Koga Shigehiro, Kanazawa Yoshihisa, Okamoto Takeshi, Yamanouchi Masafumi, Shudo Kazumichi
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Patent number: 4526912Abstract: This invention relates to a composition comprising (1) a phenoxy resin and (2) at least two compositions selected from (a) phenolic resins, (b) melamine resins and (c) polyisocyanates; to the cured products thereof; and to an electrical conductor coated with said cured products.Type: GrantFiled: December 1, 1983Date of Patent: July 2, 1985Assignees: The P. D. George Co., Industrie Vernici Italiane S.p.A.Inventors: Luciano Biorcio, Carlo Mensi
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Patent number: 4520144Abstract: A modified polyepoxide is disclosed which cures with an amine-functional curing agent at room temperature to form coatings having better flexibility and resistance to Skydrol hydraulic fluid. This modified polyepoxide is the reaction product of a diurethane diisocyanate with a resinous polyepoxide having a molecular weight of from about 500 to about 1000 and a 1,2-epoxy equivalency of from about 1.5 to about 2.0. The diurethane diisocyanate is reacted with the resinous polyepoxide in an amount of from about 1.5 moles to about 16 moles per 100 moles of the polyepoxide. The diurethane diisocyanate is itself the reaction product of a dicarbinol-terminated polydimethyl polysiloxane having a molecular weight of from about 1000 to about 4000 with substantially a 2:1 stoichiometric excess of an organic diisocyanate.Type: GrantFiled: February 6, 1984Date of Patent: May 28, 1985Assignee: DeSoto, Inc.Inventors: Gerry K. Noren, Mary F. Clifton
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Patent number: 4507412Abstract: High solids coatings are prepared from (1) adducts of a polyepoxide and a polyamine and (2) a polyisocyanate blocked with a ketoxime or lactam.Type: GrantFiled: July 6, 1984Date of Patent: March 26, 1985Assignee: The Dow Chemical CompanyInventors: Richard A. Hickner, Michael B. Cavitt
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Patent number: 4500703Abstract: This invention relates to a storage stable, heat reactive, adhesive dispersion composition comprising a solid epoxy resin containing more than one epoxy group and a solid, sterically unhindered, tertiary amine catalyst in a liquid vehicle which is a non-solvent for the solids but in which said solids are at least partially soluble in the melt. Heating said dispersion to a temperature at or above which the solids melt results in a thermoset product usable as an adhesive, sealant or coating.Type: GrantFiled: December 28, 1983Date of Patent: February 19, 1985Assignee: W. R. Grace & Co.Inventors: James L. Guthrie, Ronald T. Wojcik
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Patent number: 4476263Abstract: Certain alkali metal salts of organic diacids having one or more hydroxyl functional groups, as for example sodium and potassium citrate, provide improved adhesion of organic coatings electrodeposited on metal substrate. The new sanitary coatings are particularly useful for untreated aluminum and aluminum alloy cans used in the packaging of various food products including acidic foods like tomatoes, corn, and green beans which require in-can-sterilization.Type: GrantFiled: November 23, 1983Date of Patent: October 9, 1984Assignee: SCM CorporationInventor: Phillip M. Owens
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Patent number: 4471009Abstract: A thermosetting composition for use in the formation of a magnetizable film on a substrate is disclosed herein, which has improved resistance to frictional wear and abrasion, and improved impact durability. The composition comprises a heat-curable polymer resin, magnetizable particles, a fatty ester, and sufficient solvent to provide a viscosity of from about 200 to about 600 centipoise at about 24.degree. C. The method of preparation of the composition as well as its use are also disclosed.Type: GrantFiled: April 15, 1983Date of Patent: September 11, 1984Assignee: Dysan CorporationInventor: Norman M. Phillips
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Patent number: 4456713Abstract: A composition for injection molding a sinterable material such as silicon nitride.This composition includes a binder system which imparts a greater flexibility to the, as molded, green body. The binder-system contains a major component of paraffin wax, a minor component of epoxy resin, and a surfactant.Type: GrantFiled: December 20, 1982Date of Patent: June 26, 1984Assignee: GTE Laboratories IncorporatedInventors: Kenneth W. French, Jeffrey T. Neil, Larry L. Turnbaugh
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Patent number: 4455400Abstract: A migration-free size for glass fibers which includes a silane coupler, lubricant and film former and is characterized by the absence of a carrier, either aqueous or organic. To provide required shelf-life, a volatile agent such as acetone is added in limited amount to block coupler-film former reaction pending use of the size.Type: GrantFiled: June 25, 1980Date of Patent: June 19, 1984Assignee: Owens-Corning Fiberglas CorporationInventor: Carl A. Johnson
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Patent number: 4448913Abstract: Polyethylene terephthalate molding compositions characterized by rapid crystallization are provided by combining polyethylene terephthalate and a filler or reinforcing agent with a crystallization-rate promoter comprising sodium benzoate and a poly-alpha-olefin such as low density polyethylene. A flame retardant material is provided by the addition of flame retardant additives.Type: GrantFiled: October 29, 1982Date of Patent: May 15, 1984Assignee: Dart Industries Inc.Inventors: Ernest A. Coleman, Kevin J. Cronin, Frank K. Chu, Robin W. Kirwan