Carboxylic Acid Or Derivative Devoid Of Heavy Metal Atom Dnrm Patents (Class 523/455)
  • Patent number: 4812503
    Abstract: A novel paint composition comprising an organic solvent-based, organic solid film-forming component and an organic volatile corrosion inhibitor.
    Type: Grant
    Filed: December 11, 1987
    Date of Patent: March 14, 1989
    Assignee: Ronco Laboratories, Inc.
    Inventor: Maurice S. Baseman
  • Patent number: 4812535
    Abstract: 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: Grant
    Filed: September 3, 1987
    Date of Patent: March 14, 1989
    Assignee: E. I. DuPont de Nemours and Company
    Inventors: Andrew H. Dervan, Panagiotis I. Kordomenos
  • Patent number: 4808652
    Abstract: 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: Grant
    Filed: June 8, 1988
    Date of Patent: February 28, 1989
    Assignee: Monsanto Company
    Inventor: Kenneth J. Gardner
  • Patent number: 4808642
    Abstract: 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: Grant
    Filed: April 25, 1986
    Date of Patent: February 28, 1989
    Assignee: Takiron Co., Ltd.
    Inventors: Hideki Kitada, Masami Takahashi, Toshiyuki Yagi, Masaaki Sukeda, Tadashi Nakayama
  • Patent number: 4794149
    Abstract: 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: Grant
    Filed: September 3, 1987
    Date of Patent: December 27, 1988
    Assignee: E. I. Du Pont De Nemours and Company
    Inventors: Andrew H. Dervan, Dennis J. Grebur, Panagiotis I. Kordomenos
  • Patent number: 4788233
    Abstract: 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: Grant
    Filed: November 18, 1987
    Date of Patent: November 29, 1988
    Assignee: Sunstar Giken Kabushiki Kaisha
    Inventors: Toshimori Sakakibara, Takahiro Nakano, Tatsuya Okuno
  • Patent number: 4786691
    Abstract: 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: Grant
    Filed: August 7, 1987
    Date of Patent: November 22, 1988
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Andrew H. Dervan, Panagiotis I. Kordomenos
  • Patent number: 4778861
    Abstract: 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: Grant
    Filed: August 7, 1987
    Date of Patent: October 18, 1988
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Andrew H. Dervan, Dennis J. Grebur, Panagiotis I. Kordomenos
  • Patent number: 4767017
    Abstract: 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: Grant
    Filed: April 16, 1987
    Date of Patent: August 30, 1988
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Francis M. Logullo, Sr., Yun-Tai Wu, George E. Zahr
  • Patent number: 4753826
    Abstract: 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: Grant
    Filed: February 27, 1987
    Date of Patent: June 28, 1988
    Assignee: Palmer International, Inc.
    Inventor: G. Fred Lauman
  • Patent number: 4754002
    Abstract: 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: Grant
    Filed: December 16, 1985
    Date of Patent: June 28, 1988
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Panagiotis I. Kordomenos, Andrew H. Dervan, Dennis J. Grebur
  • Patent number: 4751258
    Abstract: 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: Grant
    Filed: June 6, 1986
    Date of Patent: June 14, 1988
    Assignee: Takemoto Yushi Kabushiki Kaisha
    Inventor: Hiroshi Minami
  • Patent number: 4740566
    Abstract: 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: Grant
    Filed: May 23, 1986
    Date of Patent: April 26, 1988
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Henry S. Tremper, III
  • Patent number: 4739019
    Abstract: 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: Grant
    Filed: December 8, 1986
    Date of Patent: April 19, 1988
    Assignee: PPG Industries, Inc.
    Inventors: Raymond F. Schappert, Robert M. Piccirilli
  • Patent number: 4721770
    Abstract: N-Cyanocarboxylic acid amide derivatives which contain two or three ##STR1## groupings in the molecule are useful as hardeners for epoxide resins.
    Type: Grant
    Filed: June 24, 1986
    Date of Patent: January 26, 1988
    Assignee: Ciba-Geigy Corporation
    Inventors: Friedrich Stockinger, Friedrich Lohse, Roland Moser
  • Patent number: 4720517
    Abstract: 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: Grant
    Filed: November 24, 1986
    Date of Patent: January 19, 1988
    Assignee: Ciba-Geigy Corporation
    Inventors: Ramanathan Ravichandran, Thomas E. Snead
  • Patent number: 4719253
    Abstract: 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: Grant
    Filed: August 1, 1986
    Date of Patent: January 12, 1988
    Assignee: The Glidden Company
    Inventors: Edward T. Turpin, David T. Thrane
  • Patent number: 4708995
    Abstract: 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: Grant
    Filed: November 14, 1985
    Date of Patent: November 24, 1987
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Panagiotis I. Kordomenos, Andrew H. Dervan, Dennis J. Grebur
  • Patent number: 4705647
    Abstract: 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: Grant
    Filed: June 26, 1986
    Date of Patent: November 10, 1987
    Assignee: Mitsubishi Petrochemical Co., Ltd.
    Inventors: Shoji Yamaguchi, Kimiko Yamada
  • Patent number: 4687795
    Abstract: 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: Grant
    Filed: December 24, 1984
    Date of Patent: August 18, 1987
    Assignee: Allied Corporation
    Inventors: Steven R. Dunkle, John C. Haylock
  • Patent number: 4684677
    Abstract: 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: Grant
    Filed: February 13, 1986
    Date of Patent: August 4, 1987
    Assignee: DeSoto, Inc.
    Inventors: Clark A. Higginbotham, James W. Wichmann
  • Patent number: 4678821
    Abstract: A rigid composite of an epoxy resin matrix reinforced with continuous filaments of a p-aramid coated with an adhesion modifier.
    Type: Grant
    Filed: May 31, 1985
    Date of Patent: July 7, 1987
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Francis M. Logullo, Sr., Yun-Tai Wu, George E. Zahr
  • Patent number: 4673710
    Abstract: 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: Grant
    Filed: January 28, 1985
    Date of Patent: June 16, 1987
    Assignee: Schering AG
    Inventors: Christian Burba, Ulrich Goeke, Norbert Esper
  • Patent number: 4663079
    Abstract: 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: Grant
    Filed: June 27, 1985
    Date of Patent: May 5, 1987
    Assignee: Mitsubishi Petrochemical Co., Ltd.
    Inventors: Shoji Yamaguchi, Kimiko Yamada
  • Patent number: 4657947
    Abstract: 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: Grant
    Filed: March 6, 1985
    Date of Patent: April 14, 1987
    Assignee: Asahi Denka Kogyo K.K.
    Inventors: Hidehiko Kojo, Koji Akimoto
  • Patent number: 4657953
    Abstract: 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: Grant
    Filed: June 18, 1985
    Date of Patent: April 14, 1987
    Assignee: Asahi Denka Kogyo K.K.
    Inventors: Hidehiko Kojo, Koji Akimoto
  • Patent number: 4637197
    Abstract: 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: Grant
    Filed: December 26, 1985
    Date of Patent: January 20, 1987
    Assignee: Epoxy Technology, Inc.
    Inventor: Charles E. Banfield
  • Patent number: 4636535
    Abstract: 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: Grant
    Filed: January 16, 1985
    Date of Patent: January 13, 1987
    Assignee: American Cyanamid Company
    Inventors: David W. Wang, Jeanne L. Courter, Dalip K. Kohli
  • Patent number: 4614674
    Abstract: 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: Grant
    Filed: May 3, 1985
    Date of Patent: September 30, 1986
    Assignee: Ciba-Geigy Corporation
    Inventor: Horst Lauterbach
  • Patent number: 4609693
    Abstract: 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: Grant
    Filed: June 3, 1985
    Date of Patent: September 2, 1986
    Assignee: The Dow Chemical Company
    Inventors: John A. Schols, KeeChung Yu
  • Patent number: 4604314
    Abstract: 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: Grant
    Filed: January 25, 1985
    Date of Patent: August 5, 1986
    Assignee: Siemens Aktiengesellschaft
    Inventors: Wolfgang von Gentzkow, Maximilian Hodl, Wolfgang Kleeberg, Helmut Markert
  • Patent number: 4598108
    Abstract: 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: Grant
    Filed: June 27, 1985
    Date of Patent: July 1, 1986
    Assignee: Akzo NV
    Inventor: Cornelis A. M. Hoefs
  • Patent number: 4596843
    Abstract: 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: Grant
    Filed: March 20, 1985
    Date of Patent: June 24, 1986
    Assignee: Insilco Corporation
    Inventor: Donald G. Wind
  • Patent number: 4582556
    Abstract: 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: Grant
    Filed: May 31, 1984
    Date of Patent: April 15, 1986
    Assignee: Olin Corporation
    Inventors: Sheldon H. Butt, Edward F. Smith, III, F. Dennis Gyurina
  • Patent number: 4575524
    Abstract: 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: Grant
    Filed: January 29, 1985
    Date of Patent: March 11, 1986
    Assignee: Inmont Corporation
    Inventors: Terry L. Anderson, Tapan K. Deb Roy, Ding Y. Chung
  • Patent number: 4572870
    Abstract: 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: Grant
    Filed: December 28, 1984
    Date of Patent: February 25, 1986
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Joseph A. Vasta
  • Patent number: 4556683
    Abstract: 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: Grant
    Filed: August 18, 1983
    Date of Patent: December 3, 1985
    Assignee: Nippon Paint Co., Ltd.
    Inventors: Yoji Hirasawa, Shoji Ikeda
  • Patent number: 4552907
    Abstract: 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: Grant
    Filed: July 27, 1984
    Date of Patent: November 12, 1985
    Assignee: Kabushiki Kaisha Toyota Chuo Kenkyusho
    Inventors: Shigeyuki Sato, Mitsumasa Matsushita
  • Patent number: 4548964
    Abstract: 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: Grant
    Filed: December 10, 1984
    Date of Patent: October 22, 1985
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Tomohiko Yoshida, Hiroshi Mori
  • Patent number: 4529756
    Abstract: Zinc rich, solvent resistant and corrosion resistant coatings are prepared by blending zinc pigment, a thermoplastic polyhydroxyether and an organic dianhydride or polyanhydride.
    Type: Grant
    Filed: October 19, 1984
    Date of Patent: July 16, 1985
    Assignee: Union Carbide Corporation
    Inventor: George A. Salensky
  • Patent number: 4528306
    Abstract: 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: Grant
    Filed: April 20, 1984
    Date of Patent: July 9, 1985
    Assignee: Chisso Corporation
    Inventors: Koga Shigehiro, Kanazawa Yoshihisa, Okamoto Takeshi, Yamanouchi Masafumi, Shudo Kazumichi
  • Patent number: 4526912
    Abstract: 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: Grant
    Filed: December 1, 1983
    Date of Patent: July 2, 1985
    Assignees: The P. D. George Co., Industrie Vernici Italiane S.p.A.
    Inventors: Luciano Biorcio, Carlo Mensi
  • Patent number: 4520144
    Abstract: 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: Grant
    Filed: February 6, 1984
    Date of Patent: May 28, 1985
    Assignee: DeSoto, Inc.
    Inventors: Gerry K. Noren, Mary F. Clifton
  • Patent number: 4507412
    Abstract: 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: Grant
    Filed: July 6, 1984
    Date of Patent: March 26, 1985
    Assignee: The Dow Chemical Company
    Inventors: Richard A. Hickner, Michael B. Cavitt
  • Patent number: 4500703
    Abstract: 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: Grant
    Filed: December 28, 1983
    Date of Patent: February 19, 1985
    Assignee: W. R. Grace & Co.
    Inventors: James L. Guthrie, Ronald T. Wojcik
  • Patent number: 4476263
    Abstract: 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: Grant
    Filed: November 23, 1983
    Date of Patent: October 9, 1984
    Assignee: SCM Corporation
    Inventor: Phillip M. Owens
  • Patent number: 4471009
    Abstract: 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: Grant
    Filed: April 15, 1983
    Date of Patent: September 11, 1984
    Assignee: Dysan Corporation
    Inventor: Norman M. Phillips
  • Patent number: 4456713
    Abstract: 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: Grant
    Filed: December 20, 1982
    Date of Patent: June 26, 1984
    Assignee: GTE Laboratories Incorporated
    Inventors: Kenneth W. French, Jeffrey T. Neil, Larry L. Turnbaugh
  • Patent number: 4455400
    Abstract: 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: Grant
    Filed: June 25, 1980
    Date of Patent: June 19, 1984
    Assignee: Owens-Corning Fiberglas Corporation
    Inventor: Carl A. Johnson
  • Patent number: 4448913
    Abstract: 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: Grant
    Filed: October 29, 1982
    Date of Patent: May 15, 1984
    Assignee: Dart Industries Inc.
    Inventors: Ernest A. Coleman, Kevin J. Cronin, Frank K. Chu, Robin W. Kirwan