Polymer From Ethylenic Reactants Only Derived From Reactant-containing Carboxylic Acid Ester Patents (Class 523/412)
  • Patent number: 6190523
    Abstract: An electrocoat coating composition includes an anionic addition polymer latex and a water-insoluble crosslinking resin that is dispersed with an anionic dispersing resin.
    Type: Grant
    Filed: July 20, 1999
    Date of Patent: February 20, 2001
    Assignee: BASF Corporation
    Inventor: Charles L. Tazzia
  • Patent number: 6180691
    Abstract: A process for the preparation of an ink which comprises mixing an ink vehicle, a colorant and a latex containing a polymer with epoxy groups, and wherein said latex is generated by the polymerization of a mixture of olefinic monomers, and wherein at least one of said olefinic monomers is an unsaturated epoxide monomer and which polymerization is accomplished in the presence of an anionic surfactant, and a nonionic surfactant.
    Type: Grant
    Filed: August 2, 1999
    Date of Patent: January 30, 2001
    Assignee: Xerox Corporation
    Inventors: Chieh-Min Cheng, Garland J. Nichols, Min-Hong Fu
  • Patent number: 6177488
    Abstract: The present invention provides an aqueous colored base coating composition (A) comprising a hydroxyl- and carboxyl-containing acrylic resin (A-1), a melamine resin (A-2), an alicyclic epoxy-containing compound (A-3), a neutralizing agent (A-4) and a coloring pigment (A-5). The present invention further provides a method for forming a topcoat which comprises applying the aqueous colored base coating composition (A) to a substrate and applying to the base coat an organic solvent type clear coating composition (B) to be cured by the crosslinking reaction between a carboxyl group and an epoxy group.
    Type: Grant
    Filed: August 13, 1996
    Date of Patent: January 23, 2001
    Assignee: Kansai Paint Company, Limited
    Inventors: Akira Kasari, Hiroaki Oda, Junichi Kajima, Mikio Shimakawa
  • Patent number: 6146512
    Abstract: A process for controlling foam in a water-based electrophoretic coating bath for coating an electrically conductive substrate wherein the bath contains at least one cathodically depositable synthetic resin by adding to the bath a polyalkylene oxide compound whose oxyalkyl groups contain 2 to 4 carbon atoms and the terminal OH groups are esterified with a carboxylic acid or etherified with an allyl or methyl aryl group and has a solubility of more than 50 parts by weight in 100 parts by weight of water at 25.degree. C.
    Type: Grant
    Filed: December 3, 1998
    Date of Patent: November 14, 2000
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Rainer Hoefer, Heinz-Guenther Schulte, Harald Frommelius
  • Patent number: 6147144
    Abstract: Disclosed are a cationic electrodeposition coating composition and a process for preparing the same in which the dried coating film of the electrodeposition paint has an epoxy-acrylic double-layered structure for displaying excellent properties, and in which an organic solvent content can be minimized. The cationic electrodeposition coating composition having a resinoid dispersed into an aqueous medium comprises a cationic electrodeposition resin and an organic solvent of less than 2.0 percent by weight based on a dispersed solution of the cationic electrodeposition resin.
    Type: Grant
    Filed: September 11, 1997
    Date of Patent: November 14, 2000
    Assignee: Daihan Paint & Ink Co., Ltd.
    Inventors: Ki-Myong Song, Jong-Myung Hong, Hoon Chung, Seung-Jae Back
  • Patent number: 6136895
    Abstract: The present invention can provide a cationic electrocoating composition, comprising:(a) an acrylic resin functioning as a leveling agent, which has both an amino group and an acid group in one molecule and has a hydroxyl value of 50 to 200,(b) a base resin, and(c) a crosslinking agent,wherein the acrylic resin (a) is formulated in an amount of 0.1 to 20 percent by weight, based on the total weight of a mixture of the base resin (b) and the crosslinking agent (c), and the cationic electrocoating composition is substantially free from lead compound. The present invention also provides a method for preventing cratering or cissing on an electrocoated film formed from the cationic electrocoating composition.
    Type: Grant
    Filed: June 25, 1999
    Date of Patent: October 24, 2000
    Assignee: Nippon Paint Co., Ltd.
    Inventors: Toshitaka Koyama, Takahiro Mukae, Shinji Nakano, Mitsuo Yamada
  • Patent number: 6130274
    Abstract: Disclosed are an aqueous dispersion for a low-temperature curable cationic electrodeposition coating composition and a process for preparing the same in which the dried coating film of the electrodeposition paint has an epoxy-acrylic double-layered structure for displaying excellent properties, and in which an organic solvent content can be minimized to zero. The aqueous dispersion of the cationic electrodeposition coating composition can be manufactured by using (a) a cationic electrodeposition synthetic resin which is obtained by an amino addition reaction of a polyepoxide, (b) an acrylic cationic electrodeposition resin having an amino group, (c) an ester-modified styrene-allyalcohol copolymer synthesized by an esterification reaction of styrene-allylalcohol copolymer with a fatty acid; and (d) a polyurethane-type crosslinking agent prepared by the reaction of methyethyl ketoxime-partially-blocked diisocyanate with trimethylol propane.
    Type: Grant
    Filed: July 15, 1998
    Date of Patent: October 10, 2000
    Assignee: Daihan Paint & Ink Co., Ltd.
    Inventors: Ki-Myong Song, Jong-Myung Hong, Hoon Chung, Seung-Jae Back
  • Patent number: 6121349
    Abstract: Aqueous dispersions of carboxyl-containing polyvinyl acetals which contain no emulsifiers, no readily volatile organic solvents and no nonvolatile plasticizers, preparable by a) reacting hydroxyl-containing polyvinyl acetals with polycarboxylic anhydrides in the melt or in high-boiling solvents, b) neutralizing at least some of the carboxylic acid groups present in the resulting modified polyvinyl acetals, and c) dispersing the resulting salt of the modified polyvinyl acetals in water, are suitable as coating compositions for paper and textiles and as binders for paints and varnishes.
    Type: Grant
    Filed: September 25, 1997
    Date of Patent: September 19, 2000
    Assignee: Clariant GmbH
    Inventors: Hannes Fischer, Matthias Mag
  • Patent number: 6103788
    Abstract: The present invention relates to a curable resin composition for use in water-based coating materials which includes as essential components an emulsion polymer (A) containing tertiary amino groups obtained by carrying out emulsion polymerization of a vinyl monomer containing a tertiary amino group with another copolymerizable vinyl monomer in a water-based medium, and a compound (B) containing, at least, an epoxy group and a hydrolyzable silyl group, with this composition preferably also including a water-based compound (C) obtained by adding a neutralizing agent to a vinyl polymer (I) containing acidic groups and/or tertiary amino groups so as to neutralize at least 10% of the acidic groups and/or the tertiary amino groups, and then dispersing or dissolving in water, and/or a compound (D), which is not included in compound (B), and contains hydrolyzable silyl group and/or a silanol group.
    Type: Grant
    Filed: July 22, 1997
    Date of Patent: August 15, 2000
    Assignee: Dainippon Ink and Chemicals, Inc.
    Inventors: Nobuo Harui, Akifumi Yamamoto, Hidehisa Nakamura
  • Patent number: 6054508
    Abstract: A method for producing a water dispersible resin composition, comprising radically polymerizing, in the presence of a polymerization initiator, a starting mixture comprising (a) 10 to 95% by weight of a water insoluble resin having a solubility in water of not more than 1; and (b) 5 to 90% by weight of a monomer mixture which comprises (1) 2 to 75% by weight of an ethylenically unsaturated monomer having an acid group, and (2) 25 to 98% by weight of an ethylenically unsaturated monomer other than (1); and neutralizing the resulting resin composition containing an acid group by adding a neutralizing agent. A coating composition is provided which is stable and excellent in coating workability and has improved storage stability and solid components content of the coating composition. Since particles excellent in dispersibility improve the uniformity of a coated film, transparency, smoothness, chemical resistance, water resistance and mechanical strength of the coated film are also improved.
    Type: Grant
    Filed: October 24, 1997
    Date of Patent: April 25, 2000
    Assignee: Nippon Paint Co., Ltd.
    Inventors: Masakazu Watanabe, Hiroshi Miwa, Teruaki Kuwajima, Satoshi Suzuki
  • Patent number: 6034157
    Abstract: A process for producing an aqueous coating composition comprising an aqueous dispersion of internally crosslinked polymer microgel particles in which the microgel articles are produced by emulsion polymerisation of ethylenically unsaturated monomers including carboxyl functional monomer in an aqueous medium so as to form an aqueous dispersion of carboxyl functional addition polymer followed by reacting this polymer dispersion with a diepoxide resin having an epoxide equivalent weight between 100 and 5000 to form the crosslinked polymer microgel particles.
    Type: Grant
    Filed: October 2, 1997
    Date of Patent: March 7, 2000
    Assignee: Imperial Chemical Industries, Plc.
    Inventors: Gary P. Craun, Neal S. Williams
  • Patent number: 6031028
    Abstract: This invention provides a cationic electrodeposition coating composition comprising(A) a resin prepared by reacting an epoxy- or carboxyl-containing acrylic polymer, a bisphenol compound and a bisphenol diglycidyl ether-type epoxy resin to produce an epoxy-containing resin and introducing thereinto cationic groups and(B) a hydroxyl- and amino-containing acrylic resin, the resins (A) and (B) being crosslinked and cured by urethanation reaction with (C) an isocyanate crosslinking agent component. The cationic electrodeposition coating composition of the invention is excellent in curability and in corrosion resistance of the cured coating film.
    Type: Grant
    Filed: March 10, 1998
    Date of Patent: February 29, 2000
    Assignee: Kansai Paint Company, Limited
    Inventors: Yutaka Iino, Katsuhisa Sugisaki, Koji Kamikado
  • Patent number: 6008273
    Abstract: A waterborne coating composition for metal containers, a method of coating a metal container, and a metal article useful as a food or beverage container are disclosed. The waterborne coating compositions are thermoplastic and self-crosslinkable materials and comprise: (a) an epoxy resin; (b) a water-dispersible acrylic resin; (c) an optional solid filler; (d) a fugitive base; and an aqueous carrier, wherein the waterborne coating composition contains 450 grams or less of volatile organic compounds per kilogram of nonvolatile material.
    Type: Grant
    Filed: May 9, 1997
    Date of Patent: December 28, 1999
    Assignee: The Dexter Corporation
    Inventors: Ulrich Leibelt, Paul Bohler
  • Patent number: 5985955
    Abstract: Disclosed are aqueous dispersions of polyurethane polymers from which films can be formed which have enhanced hydrophilicity. The enhanced hydrophilicity is provided by hydrophilic moieties chemically incorporated in the polymer network.
    Type: Grant
    Filed: May 2, 1997
    Date of Patent: November 16, 1999
    Assignee: Witco Corporation
    Inventors: Ibrahim Bechara, Frank Bonney, Konstantinos Arvanitis
  • Patent number: 5981627
    Abstract: This invention relates to stable one-part latex compositions prepared by aqueous emulsion polymerization wherein a core-shell polymer is formed, the core formed by emulsion polymerization of an ethylenically unsaturated monomer in the presence of an epoxy resin and the shell polymer formed by emulsion polymerization of a hydroxy carboxyl containing monomer composition in the presence of the core, providing that the monomers in both the core and the shell do not contain amino functional groups, and post-adding to the formed core-shell polymer an organic compound having at least one amino functional group which is available for later reaction with the epoxy resin upon drying to produce a crosslinked polymer product.
    Type: Grant
    Filed: October 9, 1992
    Date of Patent: November 9, 1999
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: Yen-Jer Shih, Arthur B. Pruiksma
  • Patent number: 5976700
    Abstract: An aqueous coating composition and a method of coating a metal substrate are provided. The composition and method are particularly suitable for use in coating can bodies and can ends or for-can side seam coatings. The coating composition includes a solvent component and a film forming component. The solvent component includes water and an organic solvent. The film forming component includes a curing agent and the product of the reaction of a carboxy addition polymer and an epoxy resin in the presence of a tertiary amine catalyst.
    Type: Grant
    Filed: May 7, 1997
    Date of Patent: November 2, 1999
    Assignee: The Valspar Corporation
    Inventors: Mary Jo Chutko, Phillip C. Martino
  • Patent number: 5972432
    Abstract: An aqueous coating composition and a method of coating a metal substrate are provided. The composition and method are particularly suitable for use in coating can bodies and can ends or for can side seam coatings. The coating composition includes a solvent component and a film forming component. The solvent component includes water and an organic solvent The film forming component includes a curing agent and the product of the reaction of a carboxy addition polymer and an epoxy resin in the presence of a tertiary amine catalyst.
    Type: Grant
    Filed: July 14, 1997
    Date of Patent: October 26, 1999
    Assignee: Valspar Corporation
    Inventors: Mary Jo Chutko, Phillip C. Martino
  • Patent number: 5962571
    Abstract: Process for making organic solvent-free aqueous crosslinkable polymer composition comprising: a) preparing an aqueous solution of an acid-functional oligomer with Tg 10 to 125.degree. C. and having crosslinker functional groups; b) conducting an aqueous emulsion polymerization to make an aqueous emulsion of an olefinic hydrophobic polymer in the presence of the aqueous oligomer solution, the hydrophobic polymer having Tg at least 25.degree. C. below that of the oligomer and optionally crosslinker functional groups, and c) combining with a crosslinking agent reactable with the crosslinker groups of the oligomer and polymer, said composition having Koenig hardness of .gtoreq.40 sec and minimum film forming temperature (MFFT) .ltoreq.55.degree. C. Also the aqueous composition so formed and its use in various applications. The aqueous composition has excellent properties and in particular an advantageous balance of MFFT and Koenig hardness.
    Type: Grant
    Filed: November 1, 1996
    Date of Patent: October 5, 1999
    Assignee: Zeneca Resins B.V.
    Inventors: Gerardus Cornelis Overbeek, Yvonne Wilhelmina Smak, Alfred Jean Paul Buckmann
  • Patent number: 5962556
    Abstract: The present invention is directed to a functional latex polymer composition resistant to hydrolysis which contains a vinyl polymer of copolymerizable monoethylenically unsaturated monomers where at least one monomer contains at least one hydrolyzable functional group. The combined oxygen and nitrogen content of the vinyl polymer is up to about 27 wt %, based on the monomers in the vinyl polymer.
    Type: Grant
    Filed: May 21, 1997
    Date of Patent: October 5, 1999
    Assignee: Eastman Chemical Company
    Inventor: James Wayne Taylor
  • Patent number: 5959029
    Abstract: The invention relates to a chemical composition containing a) a copolymer based on styrene and/or at least one alkyl (meth)acrylate, the quantity of styrene and/or alkyl (meth)acrylate being .gtoreq.50% by weight, based on the total monomers, and at least one further comonomer, and b) a water-soluble polymeric protective colloid, wherein about 2 to 30 parts per weight of the water-soluble polymeric protective colloid are allotted to 100 parts by weight of the copolymer, and c) optional further additives as required. The copolymer contains appoximately 0.1 to 50% by weight units of an epoxide-group-containing ethylenically unsaturated comonomer. Such units show reactive epoxide groups. The invention relates further to an aqueous polymer dispersion of said chemical composition, the production of same and a special method for obtaining the chemical composition from the polymer dispersion and special applications of the aqueous polymer dispersion and the chemical composition.
    Type: Grant
    Filed: August 18, 1997
    Date of Patent: September 28, 1999
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: Robert Koelliker, Harald Bachler
  • Patent number: 5942563
    Abstract: An aqueous protective coating composition particularly useful for can coatings is based on a polymeric binder comprising epoxy crosslinked microgel particles. The microgel polymer is produced by dispersing into water a carboxyl functional, acrylic-epoxy grafted copolymer, and combined with a high molecular weight, branched, multifunctional epoxide resin, followed by coreaction and crosslinking between the carboxyl copolymer and branched epoxide to form stable aqueous dispersed microgel particles. In a preferred aspect of the invention, low molecular weight liquid diepoxide is dispersed into and crosslinked with the carboxyl functional acrylic grafted epoxy copolymer.
    Type: Grant
    Filed: July 18, 1997
    Date of Patent: August 24, 1999
    Assignee: The Glidden Company
    Inventor: Henry J. DeGraaf
  • Patent number: 5939159
    Abstract: The invention provides an aqueous resin dispersion that comprises 1) an acrylic resin (A), 2) an aromatic epoxy resin (B), and 3) a bisphenol F product (C) that are dispersed in an aqueous medium at a pH of from about 4 to 11. The invention also provides an aqueous base-coat agent, coated substrates and coating methods that comprises the aqueous resin dispersion.
    Type: Grant
    Filed: September 16, 1996
    Date of Patent: August 17, 1999
    Assignee: Toyo Manufacturing Company, Ltd.
    Inventors: Teruo Shiono, Masami Yamada, Sanji Harada, Masahiro Ihara, Takeshi Tuyama, Tetsuhisa Nakamura
  • Patent number: 5932636
    Abstract: Aqueous synthetic resin dispersions comprising (A) an ionic resin, based on aralkylated epoxy resins, (B) a blocked polyisocyanate and (C) a polymer of at least one olefinically unsaturated monomer which is capable of undergoing free-radical polymerization are useful, for example, as binders in processes of coating by electrodeposition.
    Type: Grant
    Filed: April 30, 1997
    Date of Patent: August 3, 1999
    Assignee: Vianova Resins GmbH
    Inventors: Uwe Neumann, Michael Hoenel, Achim Voelker, Gerd Walz, Susanne Wehner, Peter Ziegler
  • Patent number: 5925694
    Abstract: Aqueous, low-solvent coating compositions comprising a base resin dispersion comprising of an epoxy resin, prepared by condensation of one or more epoxide compounds having at least two epoxide groups per molecule and an aromatic polyol; a dispersant comprising a condensation product of an aliphatic polyol having a weight-average molar mass (M.sub.w) of from 200 to 20,000 g/mol and an epoxide compound having at least two epoxide groups per molecule, and low molar mass, liquid, epoxy-functional compounds as diluents, and also water; an aqueous curing agent for the modified epoxy resin (I), which is suitable for curing at room temperature or at elevated temperatures (forced drying), components (I) and (II) being employed in mass fractions such that the ratio of the number of reactive epoxide groups in (I) to the number of amine hydrogen atoms in (II) is between 1:0.75 and 1:2. The coating compositions exhibit an extended pot life. They can be used to produce coatings and in water-soluble adhesives.
    Type: Grant
    Filed: September 25, 1996
    Date of Patent: July 20, 1999
    Assignee: Vianova Resins GmbH
    Inventors: Bernhard Stengel-Rutkowski, Claus Godau, Armin Pfeil
  • Patent number: 5919842
    Abstract: A matrix board coating composition for use in the formation of a mold in which flexographic printing plates are produced, the coating is a water-based, latex emulsion having a two step phenolic component to increase shelf life, reduce volatiles and improved flow properties of the coating.
    Type: Grant
    Filed: May 14, 1998
    Date of Patent: July 6, 1999
    Inventor: Gerald W. Mounsey
  • Patent number: 5898045
    Abstract: An aqueous polymer dispersion, comprising an at least 20% neutralized, free-radical polymerized product of A and B in a ratio of one part A to from 0.5 to 9.0 parts B by weight; whereinA consists essentially of from 2.5 to 13% by weight of at least one acid group-containing, ethyleneically unsaturated monomer and from 87 to 97.5% by weight of at least one ethylenically unsaturated monomer that is free from acid groups, and further whereinB is a reaction product of at least one compound containing at least 1.5 epoxide groups per molecule on average and at least one member of the group consisting of:(1) mixtures of ethylenically unsaturated monocarboxylic acids, saturated fatty acids, and monoesters of ethylenically unsaturated dicarboxylic acids and saturated fatty alcohols; and (2) mixtures of saturated fatty acids and monoesters of ethylenically unsaturated dicarboxylic acids and saturated fatty alcohol.
    Type: Grant
    Filed: June 13, 1996
    Date of Patent: April 27, 1999
    Assignee: BASF Coatings AG
    Inventors: Stephan Schwarte, Dietmar Chmielewski, Georg Wigger
  • Patent number: 5883158
    Abstract: A process for producing an improved super absorbent polymer is disclosed. The process comprises adding to a water-retained super absorbent polymer retaining 10 to 100 parts by weight of water per 100 parts by weight of the super absorbent polymer, (a) a polyfunctional compound having two or more reactive groups and selected from a hydrophilic polymer or a metallic compound in an amount of 0.005 to 5 parts by weight per 100 parts by weight of the super absorbent polymer, and (b) a crosslinking agent having two or more functional groups capable of reacting with the polyfunctional compound at a weight ratio of the polyfunctional compound to the crosslinking agent of 0.1 to 30; mixing; and allowing the mixture to react by heating.
    Type: Grant
    Filed: October 30, 1996
    Date of Patent: March 16, 1999
    Assignee: Kao Corporation
    Inventors: Hiromi Nambu, Akira Umada, Yoshihiko Watanabe, Tadashi Igarashi, Takayuki Amiya
  • Patent number: 5876802
    Abstract: The present invention relates to an aqueous two-component polyurethane coating composition comprisingA) a water-dilutable polyacrylate resin (A) having an OH number of from 40 to 200 and an acid number of from 20 to 100 mg of KOH/g, andB) a polyisocyanate component,characterized in that the water-dilutable acrylate resin is obtainable by solution polymerization ofat least one ester of (meth)acrylic acid and a cycloaliphatic C.sub.6 to C.sub.10 alcohol, with the exception of cyclohexyl methacrylate,at least one hydroxyl-containing monomer,if desired, at least one vinyl ester of .alpha.-branched monocarboxylic acids having 5 to 18 carbon atoms per molecule and/or at least one reaction product of acrylic acid and/or methacrylic acid with the glycidyl ester of .alpha.
    Type: Grant
    Filed: July 3, 1997
    Date of Patent: March 2, 1999
    Assignee: BASF Coatings AG
    Inventors: Michael Brunnemann, Uwe Meisenburg, Egbert Nienhaus, Heinz-Peter Rink
  • Patent number: 5877239
    Abstract: An aqueous protective coating composition particularly useful for can coatings based on a polymeric binder comprises diepoxide crosslinked microgel particles. The microgel polymer is produced by dispersing into water a carboxyl functional acrylic-epoxy copolymer and combined with a carboxyl functional latex polymer along with a low molecular weight diepoxide, followed by coreaction and crosslinking between the carboxyl polymers and the diepoxide to form stable aqueous dispersed microgel particles. In a preferred aspect of the invention, the carboxyl latex polymer is a swollen latex polymer.
    Type: Grant
    Filed: August 18, 1997
    Date of Patent: March 2, 1999
    Assignee: The Glidden Company
    Inventors: Gary P. Craun, Beth A. Smith, Neal S. Williams
  • Patent number: 5869552
    Abstract: A water-dispersible polymer and a coating composition containing the water-dispersible polymer are disclosed. The water-dispersible polymer is prepared from: (a) an epoxy compound having about two epoxy groups, such as an epoxy resin, (b) a linking compound having (i) conjugated carbon-carbon double bonds or a carbon-carbon triple bond and (ii) a moiety capable of reacting with an epoxy group, such as sorbic acid, and (c) acrylic monomers, at least a portion of which are capable of rendering the polymer water dispersible, such as acrylic acid, wherein the epoxy portion (a) of the polymer is covalently linked to the polymerized acrylic portion (c) by linking compound (b). The coating composition contains the water-dispersible polymer, a fugitive base to solubilize the polymer, a curing agent, and a carrier containing water.
    Type: Grant
    Filed: July 25, 1997
    Date of Patent: February 9, 1999
    Assignee: The Dexter Corporation
    Inventors: Walter R. Pedersen, Joseph Devasia Ponmankal
  • Patent number: 5861212
    Abstract: An adhesive composition comprised of (A) a latex of 100 wt. parts of a carboxyl group-containing highly saturated nitrile-conjugated diene copolymer rubber, (B) 5-30 wt. parts of a resorcinol-formaldehyde resin, and (C) 2-10 wt. parts of an aromatic epoxy resin. A composite comprised of a nitrile group-containing highly saturated copolymer rubber and a fibrous material, which has been treated with the adhesive composition. This composite is useful for belts.
    Type: Grant
    Filed: June 4, 1996
    Date of Patent: January 19, 1999
    Assignee: Nippon Zeon Co., Ltd.
    Inventors: Osamu Mori, Mitsugu Ishihara
  • Patent number: 5859112
    Abstract: Process for making organic solvent-free aqueous crosslinkable polymer composition comprising: a) preparing an aqueous solution of an acid-functional olgiomer with Tg below 50.degree. C. and having crosslinker functional groups; b) conducting an aqueous emulsion polymerisation to make an aqueous emulsion of an olefinic hydrophobic polymer in the presence of the aqueous oligomer solution, the hydrophobic polymer having Tg at least 25.degree. C. higher than that of the oligomer and optionally crosslinker functional groups, and c) combining with a crosslinking agent reactable with the crosslinker groups of the oligomer and polymer, said composition having Koenig hardness of .gtoreq.40 sec and minimum film forming temperature (MFFT).ltoreq.55.degree. C. Also the aqueous composition so formed and its use in various applications. The aqueous composition has excellent properties and in particular an advantageous balance of MFFT and Koenig hardness.
    Type: Grant
    Filed: November 1, 1996
    Date of Patent: January 12, 1999
    Assignees: Zeneca Resins B.V., Zeneca Limited
    Inventors: Gerardus Cornelis Overbeek, Yvonne Wilhelmina Smak, Alfred Jean Paul Buckmann, John Christopher Padget
  • Patent number: 5840384
    Abstract: An aqueous coating composition for exterior surface of a can, in which the resin component comprises a water-soluble or water-dispersible resin product prepared by reacting a resin having carboxyl functionality (a), an epoxy resin (b) and a tertiary amine (c), at least 50 mole % of the epoxy groups of said epoxy resin (b) being quaternary ammonium salt, provides a coating with a smooth and glossy surface, excellent processability, excellent adhesion properties, excellent retorting resistant properties and the like. Furthermore, the coating composition minimizes a generation of fume in an oven during curing.
    Type: Grant
    Filed: October 9, 1997
    Date of Patent: November 24, 1998
    Assignee: Kansai Paint Company, Ltd
    Inventors: Sumio Noda, Seiji Takami, Keiichi Shimizu, Kaoru Morita
  • Patent number: 5804615
    Abstract: This invention relates to an aqueous coating composition based on epoxy resins for coating plastic substrates. It contains7.5 to 25 wt. % of one or more epoxy resins1.5 to 10 wt. % of one or more water-miscible polyamines0 to 10 wt. % of one or more chlorinated and/or non-chlorinated polyolefins1 to 35 wt. % of electrically conductive pigments and/or extenders5 to 25 wt. % of one or more organic solvents and35 to 60 wt. % of waterwherein the sum of the above-stated constituents amounts to 100 wt. % and the coating composition additionally contains conventional lacquer additives, pigments and/or extenders and optionally further binders.
    Type: Grant
    Filed: December 16, 1996
    Date of Patent: September 8, 1998
    Assignee: Herberts Gesellschaft Mit Beschrankter Haftung
    Inventors: Peter Schreiber, Reinhard Windmann, Dieter Huber, Stefanie Goecke
  • Patent number: 5792804
    Abstract: The present invention relates to a process for the preparation of an aqueous coating composition containing a carboxyl-containing epoxy resin having an acid number in the range from 5 to 200 mg of KOH/g and having an epoxide equivalent weight in the range from 1000 to 40,000, optionally crosslinking agents, organic solvents, optionally conventional assistants and additives, and optionally pigments and fillers. The organic binder solution is neutralized using a tertiary amine in the temperature range from 60.degree. C. to 120.degree. C. This is followed by dispersion in water, with the proviso that at least 95% of the epoxide groups of the epoxy resin have been reacted. The aqueous coating compositions prepared by the process are preferably used for coating cans.
    Type: Grant
    Filed: March 14, 1994
    Date of Patent: August 11, 1998
    Assignee: BASF Lacke + Farben, AG
    Inventors: Klaus Cibura, Hans Jurgen Figge, Regina Willmer, Holger Herbert Dartmann
  • Patent number: 5780532
    Abstract: An aqueous coating composition comprising a carboxyl-containing reaction product neutralized and dispersed in an aqueous medium, the reaction product being produced by the esterification reaction of a carboxyl-containing acrylic resin (A) and an epoxy resin (B), the acrylic resin (A) comprising a carboxyl-containing polymerizable unsaturated monomer (A) and another polymerizable unsaturated monomer (b) as a monomer component, the acid value of the acrylic resin (A) at a higher molecular weight region with respect to its weight average molecular weight being higher by at least 80 mg KOH/g than at a lower molecular weight region, and a process for preparing said aqueous coating composition. The coating composition is capable of forming a coating film excellent in fabrication property, corrosion resistance, water resistance, flavor-retaining ability, among others. As a consequence, even a thin film of the composition is uniform in thickness and is outstanding in resistance to cratering and sagging.
    Type: Grant
    Filed: August 7, 1996
    Date of Patent: July 14, 1998
    Assignee: Kansai Paint Co., Limited
    Inventors: Sumio Noda, Seiji Takami, Haruo Inoue, Kaoru Morita
  • Patent number: 5766767
    Abstract: The present invention provides a clear liquid coating composition comprising (a) a compound having at least 2 carboxyl groups, (b) a compound having at least 2 epoxy groups, (c) 0.01 to 3.0 parts by weight based on 100 parts by weight of the total resin solid of an onium salt, which is used as a top coating composition for a pre-coated surface.
    Type: Grant
    Filed: August 27, 1996
    Date of Patent: June 16, 1998
    Assignee: Nippon Paint Co., Ltd.
    Inventors: Tsuneyoshi Hisai, Shigeyuki Sasaki, Takeshi Takagi, Yoshitaka Okude, Akira Fushimi, Hiroto Yoneda
  • Patent number: 5726235
    Abstract: An aqueous coating composition wherein fine grains coated with water soluble resin composed of three monomers are contained in aqueous medium, each of said fine grains are composed of aqueous resin of ethylenically unsaturated monomer and aqueous colloidal silica, which are coexistent each other. Therefore, the aqueous coating composition is superior in not only contamination resistance, but also waterproof and weatherproof. The paint film formed by the above aqueous coating composition is excellent in its strength. Accordingly, this aqueous coating composition is useful for a coating base of exterior type coating material.
    Type: Grant
    Filed: April 14, 1995
    Date of Patent: March 10, 1998
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: Motoyuki Takagi, Takeshi Baba
  • Patent number: 5726230
    Abstract: Disclosed is an aqueous coating composition which comprises a water-dispersible resin and an ester of a polyglycerin ether with a fatty acid.
    Type: Grant
    Filed: October 20, 1995
    Date of Patent: March 10, 1998
    Assignee: Kansai Paint Company, Limited
    Inventors: Masahiro Murata, Toshio Kurihara, Akira Suehiro, Syuichi Ikenoue
  • Patent number: 5691416
    Abstract: An epoxy resin composition which is tough and has excellent heat resistance and adhesion is obtained by dispersing, in an epoxy resin, polymer particles with a glass transition temperature of lower than 20.degree. C. obtained by emulsion polymerization of a (meth)acrylic acid ester monomer by using, as an emulsifier, an end alkyl group-containing polymer with an acid value of greater than 200 or a salt thereof obtained by polymerization of a polymerizable monomer containing an unsaturated carboxylic acid in the presence of an alkyl mercaptan. The epoxy resin composition is useful, for example, as adhesives, molding materials, paints, sealants.
    Type: Grant
    Filed: November 2, 1995
    Date of Patent: November 25, 1997
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Masatoshi Yoshida, Kenji Minami, Ichiro Namura, Masuji Izubayashi
  • Patent number: 5686511
    Abstract: A method of preparing a water-dispersible epoxy resin coating composition comprises:(a) Reacting an epoxy polymer with a carboxyl bearing polymer in the presence of an esterification catalyst;(b) Quenching with an excess of tertiary amine before the esterification reaction is completed; and(c) adding water to form an aqueous dispersion.
    Type: Grant
    Filed: June 28, 1996
    Date of Patent: November 11, 1997
    Assignee: The Valspar Corporation
    Inventor: William S. Bobo
  • Patent number: 5677379
    Abstract: A binder composition for coating agents containsA.sub.1) C--H-acid compounds obtainable by polymerization of hydroxyfunctional and non-hydroxyfunctional monomers, polyols and .beta.-keto carboxylic acid esters and subsequent esterification of the hydroxy groups with the .beta.-keto carboxylic acid esters,A.sub.2) C--H-acid compounds obtainable by transesterification of polyols with .beta.-keto carboxylic acid esters,.alpha.,.beta.-unsaturated compounds with at least two groups having the formulaR.sub.1 R.sub.2 C.dbd.CR.sub.3 --CO--bonded to at least one additional group R.sub.1 R.sub.2 C.dbd.CR.sub.3 --CO-- via the radical of a polyalcohol, polyamine or amino alcohol,C) polyglycidyl compound,D) polyamine hardeners,E) Lewis or Bronstedt bases andF) polysiloxane compounds.
    Type: Grant
    Filed: December 20, 1995
    Date of Patent: October 14, 1997
    Assignee: Herberts Gesellschaft mit beschrankter Haftung
    Inventors: Heinz-Dietholf Becker, Gerhard Bremer, Carmen Flosbach, Hermann Kerber, Walter Schubert, Werner Stephan, Jorg Wabbels
  • Patent number: 5670612
    Abstract: An aqueous self-emulsifiable epoxy resin curing agent which is produced by reacting, with each other, an (A) polyamine (meta-xylylenediamine, etc), a (B) epoxy group-containing alkoxypolyethylene polyether compound (methoxypolyethyleneglycol glycidyl ether, etc.) having 500 to 5000 average molecular weight, at least one (C) hydrophobic epoxy compound having at least one epoxy group in the molecule (butyl glycidyl ether, epoxy resin of type bisphenol A or F, etc.) and optionally, a (D) unsaturated compound capable of addition reaction (acrylonitrile, methyl methacrylate, etc.), in a molar quantity of the epoxy group in (B) of 0.001 to 0.1 mol and in a molar quantity of the sum of the epoxy group in (C) and the unsaturated group in (D) of 0.2 to 0.5 mol, each based on 1 mol of a hydrogen atom bonded to a nitrogen atom in (A) which is capable of reacting with an epoxy group or a unsaturated group.
    Type: Grant
    Filed: October 10, 1995
    Date of Patent: September 23, 1997
    Assignee: Mitsubishi Gas Chemical Company, Inc.
    Inventors: Shuta Kihara, Shinichi Yonehama, Kiichiro Seki
  • Patent number: 5654360
    Abstract: The invention provides a water-based coating composition in two pack form comprising:i) in a first pack a substantially non-aqueous solution of a silicon-containing polymer which is soluble in water miscible organic solvents and essentially soluble in aqueous media, the silicon groups on the polymer being of formula (1):--SiR.sup.1.sub.a R.sub.3-a (1)in which a is 0 to 2, R.sup.1 is Cl-6 alkyl and R is OH or a hydrolysable group, andii) in a second pack a polymer in dispersion in an aqueous liquid carrier for the composition,where the non-volatile binder solids content of the composition is at least 5% by weight and the molar concentration of silicon in the composition is greater than 0 and less than 0.5.
    Type: Grant
    Filed: December 14, 1995
    Date of Patent: August 5, 1997
    Assignee: Imperial Chemical Industries PLC
    Inventor: Peter David Palasz
  • Patent number: 5643977
    Abstract: A water-based coating composition which cures through a Michael reaction at room temperature is provided. The composition comprises (a) an aqueous emulsion of an acrylic copolymer having a plurality of activated methylene groups in the molecule, (b) an aqueous dispersion or solution of a compound having a plurality of ethylenic unsaturations in the molecule, and (c) a compound capable of catalyzing the Michael reaction.
    Type: Grant
    Filed: August 8, 1995
    Date of Patent: July 1, 1997
    Assignee: Nippon Paint Co., Ltd.
    Inventors: Katsuhiko Sho, Masahiro Nishio, Koichi Saitoh, Kei Aoki, Tohru Yagi
  • Patent number: 5635549
    Abstract: Vehicles for one-component aqueous emulsion/dispersion acrylic paints having improved washability and wash-fastness include (a) from 96% to 99.9% by weight, relative to the solids content thereof, of an aqueous dispersion of acrylic latex, and (b) from 0.1% to 4% by weight, also relative to the solids content thereof, of an aqueous emulsion of an aromatic epoxy resin which comprises a nonionic surface-active agent.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: June 3, 1997
    Assignee: Rhone-Poulenc Chimie
    Inventors: Jean-Francois D'Allest, Yves Decloitre, Philippe Larraillet
  • Patent number: 5589534
    Abstract: An aqueous coating composition is provided which comprises a generally lipophilic crosslinkable binder, optionally a chemical curing/crosslinking agent for the crosslinkable binder, and a special reactive amphiphatic emulsifier comprising a lipophilic backbone having separately pendant therefrom (a) at least one activated unsaturated group and (b) at least one of a specified class of hydrophilic polyoxyalkylene groups, and possessing an HLB value of at least 6.0.
    Type: Grant
    Filed: January 10, 1994
    Date of Patent: December 31, 1996
    Assignee: Akzo Nobel N.V.
    Inventors: Carl W. Metzger, Bernhard H. Feith, Ute Gruber, Angelika A. Zedler, Mario M. M. van Wingerde
  • Patent number: 5580908
    Abstract: Polymer mixtures comprising at least one amino group-containing polymer A) and at least one polymer B) of ethylenically unsaturated monomers, which mixtures are obtained by reacting an epoxide with an amine in the presence of the ethylenically unsaturated monomers, and then arrying out free-radical polymerization. These polymer mixtures are employed for the preparation of binder vehicles for water-based printing inks and print varnishes.
    Type: Grant
    Filed: August 15, 1995
    Date of Patent: December 3, 1996
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Astrid Giencke, Robert Kiehl, Gerd Walz, Bernd Mergardt
  • Patent number: 5569686
    Abstract: The adhesive of the present invention includes latexes with an adhesion promoter which is preferably polyamidoamine. The addition of the polyamidoamine improves the adhesive strength between substrates such as between two plastic films or between a plastic film and paperboard. The present invention also provides for an adhesive prepared from a latex which is neutralized with a particular base and a hydrophobic polyamidoamine having particular amine values and viscosity whereby the strength of the adhesive bond is increased in humid conditions. The present invention also provides for adhesives primarily for use in laminate structures which are exposed to highly humid conditions. The adhesive is a polymeric latex based system to which a polymeric adhesion promoter like polyamidoamine and an epoxy emulsion are added. The adhesive retains bond strength when exposed to humidity.
    Type: Grant
    Filed: March 19, 1990
    Date of Patent: October 29, 1996
    Assignee: The Dow Chemical Company
    Inventors: Ashok C. Makati, Charles S. Kan, Robert T. Iwamasa, Do I. Lee
  • Patent number: 5554671
    Abstract: An aqueous dispersed, very low VOC (less than about 0.4 pounds per gallon), protective surface coating composition comprises crosslinked microgel particles of less than 1 micron and produced by dispersing low molecular weight carboxyl functional addition copolymer into water, stably dispersing diepoxide epoxy resin in the aqueous dispersion, and coreacting the diepoxide resin with the carboxyl functional copolymer to provide epoxy-ester crosslinked microgel polymer particles stably dispersed into water. The microgel particles are useful as a polymeric binder for aqueous dispersed coatings particularly useful for coating interior surfaces of beer and beverage cans.
    Type: Grant
    Filed: March 21, 1995
    Date of Patent: September 10, 1996
    Assignee: The Glidden Company
    Inventors: Gary P. Craun, Victor V. Kaminski