With Solid Polymer Derived From At Least One Reactant Wherein At Least One Of The Reactants Forming The Solid Polymer Is An Aldehyde Or Derivative; Or With Spfi Or Sicp Derived From An Aldehyde Or Derivative Wherein At Least One Of The Necessary Reactants Is Saturated Patents (Class 524/512)
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Patent number: 5629373Abstract: A coating composition containing a linear aminoplast-ether copolymer of the formula: ##STR1## where the divalent R.sub.01 contains a divalent alkyleneoxy containing moiety, Amp is the skeletal residue of an aminoplast, R is hydrogen, alkyl containing 1 to about 4 carbon atoms, and acyl containing 1 to about 4 carbon atoms, p is a positive number that is equal to the free valence of Amp minus 2, RO is bonded to alkylene units of Amp, and a is a number greater than 1.Type: GrantFiled: June 7, 1995Date of Patent: May 13, 1997Assignee: United Catalysts, Inc.Inventors: Charles W. Glancy, Alan L. Steinmetz
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Patent number: 5605757Abstract: An aqueous glass fiber sizing composition is provided which provides high strength and wet-out to composites prepared using glass fibers having the sizing composition of the present invention applied thereto. When used to reinforce a thermosetting polymeric material, the glass fibers sized with this composition provide a composite useful in making pultrusion profiles having high compressive, shear and flexural strengths. The aqueous composition includes a non-ionic thermosetting urethane-modified epoxy polymer; a water soluble, dispersible or emulsifiable epoxy film-forming polymer different from the urethane-modified epoxy polymer; an emulsifying agent; an organo functional silane coupling agent; and a fiber lubricant.Type: GrantFiled: December 20, 1994Date of Patent: February 25, 1997Assignee: PPG Industries, Inc.Inventor: Michael W. Klett
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Patent number: 5602198Abstract: Acid etch resistant coating compositions and their use as clear coats in color-plus-clear composite coatings is disclosed. The compositions comprise acrylic polymers prepared with high levels of cycloaliphatic or aromatic ester of (meth)acrylic acid and hydroxypropyl- or hydroxybutyl(meth)acrylates and aminoplast crosslinking agents.Type: GrantFiled: April 26, 1995Date of Patent: February 11, 1997Assignee: PPG Industries, Inc.Inventors: Suryya K. Das, Soner Kilic, Michael A. Mayo, Andrew J. Lauer
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Patent number: 5587418Abstract: The present invention intends to provide a thermosetting coating composition provided with workability, excellent adhesion, weatherability, good appearance, etc. capable of use in a primerless colored base coat and top clear coat by a 2-coat, 1-bake method on a polyolefinic substrate. Moreover, the present invention intends to provide a coated body having excellent adhesion, weatherability, good appearance, etc. realized by a 2-coat, 1-bake method. This thermosetting coating composition is a composition comprising a graft copolymer obtained by copolymerizing acrylic monomer, unsaturated carboxylic acids, acrylic monomers containing hydroxyl group with chlorinated polyolefin containing anhydride in the presence of organic solvents. This coating composition is available for use as a primerless colored base coat 2-coat, 1-bake coating on the polyolefinic substrates.Type: GrantFiled: June 5, 1995Date of Patent: December 24, 1996Assignees: Nissan Motor Co., Ltd, TBL Co., Ltd.Inventors: Ryo Sasaki, Toshiro Ina
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Patent number: 5559180Abstract: A polyacetal composition is provided for use in plastic-plastic wear applications, said composition containing about 85 to 99 weight percent polyacetal, about 0 to 5 weight percent polytetrafluoroethylene fibers, about 0.5 to 5 weight percent ethylene methyl acrylate copolymer, and about 0.5 to 5 weight percent of at least one lubricant. The compositions are particularly useful in forming shaped articles for use especially in conveyor chain applications and gear applications.Type: GrantFiled: April 3, 1995Date of Patent: September 24, 1996Assignee: E. I. Du Pont de Nemours and CompanyInventors: Tatsuhiro Takahashi, Edmund A. Flexman, Robert J. Kassal
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Patent number: 5525670Abstract: The present invention provides the improvement of coating workability (e.g. pinhole resistance, sagging resistance, etc.) of an aqueous coating composition. That is, the present invention provides an aqueous coating composition which comprises: (A) an acrylic resin and/or a polyester resin having an acid value of 10 to 100, a hydroxyl value of 20 to 300 and a number average-molecular weight of 1,000 to 50,000; (B) a polycarbonate resin having a number average-molecular weight of 1,000 to 10,000 which contains a hydroxyl group at the terminal end; and (C) a curing agent.Type: GrantFiled: August 9, 1994Date of Patent: June 11, 1996Assignee: Nippon Paint Co., Ltd.Inventors: Tadahiko Nishi, Hideaki Ogawa, Hisaki Tanabe, Kunihiko Takeuchi
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Patent number: 5525669Abstract: Aqueous emulsions which include polyvinyl butyral are prepared by mixing a nonionic emulsifier with polyvinyl butyral and, if desired, with a plasticizer resin and, if desired, with one or more solvents, and adding water under the action of shear forces.Type: GrantFiled: August 8, 1994Date of Patent: June 11, 1996Assignee: Hoechst AktiengesellschaftInventors: Markus A. Schafheutle, Gerhard Merten
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Patent number: 5523341Abstract: The present invention is aimed at improving the weathering resistance of a polyoxymethylene resin without adversely affecting its excellent mechanical properties. The invention comprises incorporating into polyoxymethylene a UV absorber and/or a light stabilizer, along with a grafted copolymer containing epoxy-containing olefinic monomer units and/or a polymer containing oxazolyl groups.Type: GrantFiled: June 7, 1995Date of Patent: June 4, 1996Assignee: E. I. Du Pont de Nemours and CompanyInventors: Toshikazu Kobayashi, Ken-ichi Shinohara
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Patent number: 5521240Abstract: A paper coating composition which comprises:(I) a pigment;(II) an aqueous binder;(III) a mixture or a reaction product ofa water-soluble resin (A) which can be obtained by reacting, at least, (a) an alkylenediamine or a polyalkylenepolyamine, (b) an urea compound and (c) a compound selected from aldehydes, epihalohydrins and .alpha.,.gamma.-dihalo-.beta.-hydrins; andan amide compound (B-1) which can be obtained by reacting (x) an .alpha.,.beta.-unsaturated carboxylic acid compound and (y) a primary or secondary amino compound, oran aminonitrile compound (B-2) which can be obtained by reacting (z) an .alpha.,.beta.Type: GrantFiled: June 7, 1995Date of Patent: May 28, 1996Assignee: Sumitomo Chemical Company, LimitedInventors: Yoshifumi Yoshida, Toshiyuki Hasegawa, Akira Tanigawa, Fujiko Kumei, Akira Kawamura
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Patent number: 5516844Abstract: Copolymers of vinyl aromatic monomers and propoxylated allyl alcohols having an average of 2 or less oxypropylene groups are disclosed. The copolymers, which have hydroxyl numbers of 80-260 mg KOH/g and number average molecular weights from 500-3500, are particularly useful for polyurethanes, alkyd resins and coatings, melamine-based coatings, and unsaturated polyester resins.Type: GrantFiled: April 12, 1995Date of Patent: May 14, 1996Assignee: ARCO Chemical Technology, L.P.Inventor: Shao-Hua Guo
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Patent number: 5502093Abstract: Polyacetal resin compositions have excellent weather resistance and environment resistance, which suppress resin deterioration/discoloration, crack and discoloration caused by additive bleeding during extended exposure to light while maintaining the initial molded product surface condition. The polyacetal compositions include a blend of (A) 100 parts by weight of a polyacetal resin, with the specific amounts of (B) an acrylic resin, (C) an oxyalkylene polymer having chains of 2 to 8 consecutive carbon atoms, (D) a UV absorber and (E) two kinds of the hindered amine compounds each having a different molecular weight.Type: GrantFiled: November 21, 1994Date of Patent: March 26, 1996Assignee: Polyplastics Co., Ltd.Inventors: Toru Katsumata, Nobuyuki Matsunaga
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Patent number: 5496884Abstract: An adhesive composition containing a polyvinyl alcohol-stabilized butadiene polymer latex and a methylene donor compound. The butadiene polymer latex is prepared by an emulsion polymerization in the presence of polyvinyl alcohol. The adhesive composition may also contain other optional ingredients such as a supplemental polymeric film-forming component, a nitroso compound crosslinker, a maleimide compound crosslinker, a vulcanizing agent, and an acid-scavenging compound. The polyvinyl alcohol-stabilized butadiene polymer latex and methylene donor compound combine to provide a tightly crosslinked, robust film which provides for excellent adhesion and environmental resistance.Type: GrantFiled: November 12, 1993Date of Patent: March 5, 1996Assignee: Lord CorporationInventors: Mark A. Weih, Helmut W. Kucera, Patrick A. Warren, Douglas H. Mowrey
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Patent number: 5483001Abstract: Thermoplastic composition comprising at least 40% by weight and not more than 70% by weight of a crosslinked polymer phase obtained by blending at least one copolymer (a) of 96 to 55% by weight of ethylene, of 3 to 30% by weight of at least one alkyl or cycloalkyl acrylate or methacrylate in which the alkyl or cycloalkyl group contains from 1 to 10 carbon atoms, and of 1 to 15% by weight of at least one unsaturated epoxide, at least one copolymer (b) comprising from 84 to 55% of ethylene by weight, from 15 to 39% by weight of at least one alkyle or cycloalkyl acrylate or methacrylate in which the alkyl or cycloalkyl group contains from 1 to 10 carbon atoms, and from 1 to 6% by weight of at least one arthydride of an unsaturated dicarboxylic acid, and at least one compound (c) capable of accelerating the reaction between the epoxy functional group present in the copolymer (a) and the arthydride functional group present in the copolymer (b); with at least 30% by weight but not more than 60% by weight of at leasType: GrantFiled: October 25, 1994Date of Patent: January 9, 1996Assignee: NorsolorInventor: Marius Hert
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Patent number: 5476896Abstract: Water-based contact adhesives comprising:(1) a carboxylated polychloroprene latex which provides elastomeric properties;(2) a carboxylated poly(vinyl acetate-ethylene) aqueous emulsion which provides toughness to the adhesive;(3) a tackifier resin dispersion;(4) an organic or water soluble crosslinking agent for the carboxyl functionality of the polychloroprene and poly(vinyl acetate-ethylene); and(5) optionally an adhesion promoter.Type: GrantFiled: August 30, 1994Date of Patent: December 19, 1995Assignee: Borden, Inc.Inventors: Maria A. Pereira, Rajaraman Iyer
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Patent number: 5451440Abstract: A laminate comprising a substrate, a continuous layer of a release coating on one surface thereof, and a layer of a silicone pressure sensitive adhesive on the surface of said release coating, said release coating being a mixture of a resin having perfluoro side chains and a film forming resin which binds said resin having said perfluoro side chains to said substrate, wherein said film forming resin is selected from the group consisting of polyester, polyamides, functionalized polyolefins, and nitrile polymers and copolymers.Type: GrantFiled: July 30, 1993Date of Patent: September 19, 1995Assignee: American Tape Co.Inventor: John K. Tynan, Jr.
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Patent number: 5449717Abstract: A coating composition which consists essentially of:(A) a copolymer comprising 5 to 40 wt. % of an alkoxysilane-containing vinyl monomer which is a compound represented by the formula ##STR1## wherein A is ##STR2## R.sub.1 is a hydrogen atom or methyl group, R.sub.2 is a bivalent aliphatic saturated hydrocarbon group having 1 to 6 carbon atoms, R.sub.3 and R.sub.4 are the same or different and are each a phenyl group, alkyl group having 1 to 6 carbon atoms or alkoxy group having 1 to 10 carbon atoms, R.sub.5 is an alkyl group having 1 to 10 carbon atoms, m is 0 or 1, and n is an integer of 1 to 100, 5 to 50 wt. % of a hydroxyl-containing vinyl monomer and 30 to 70 wt. % of a fluorine-containing vinyl monomer, and (B) an amino resin in an amount of 5 to 50 wt. % based on the total amount of solids in the copolymer (A) and the amino resin (B).Type: GrantFiled: April 5, 1993Date of Patent: September 12, 1995Assignee: Kansai Paint Company, LimitedInventors: Tetsuya Yokoyama, Mitsuhiro Fukuda, Akimasa Nakahata, Yasushi Nakao, Motoshi Yabuta
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Patent number: 5422176Abstract: The invention relates to copolymers containinga) 20-90% of 2-acrylamido-2-methylpropanesulfonic acid, sulfoethyl or sulfopropyl (meth) acrylate or vinylsulfonic acid,b) 0-50% of a vinylic acid,c) 0-70% of methyl or ethyl acrylate or methacrylate, C.sub.2 --C.sub.4 -hydroxyalkyl acrylate or N-vinylpyrrolidone andd) 0.1-10% of styrene or C.sub.4 --C.sub.18 -alkyl acrylate or C.sub.4 --C.sub.18 -alkyl methacrylate.The copolymers according to the invention are particularly suitable as protective colloids for microencapsulation.Type: GrantFiled: October 6, 1993Date of Patent: June 6, 1995Assignee: BASF AktiengesellschaftInventors: Bernhard Schuler, Rainer Dyllick-Brenzinger, Ralf Biastoch
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Patent number: 5401553Abstract: A composition for carpet backings which comprises:(a) an aqueous dispersion of a high molecular weight polymer; and(b) a blocked polyisocyanate in amounts of about 0.5-30 parts by weight in relation to 100 parts by weight of the solids of the aqueous dispersion.The composition preferably further contains a melamine resin in amounts of about 0.1-10 parts by weight, and/or a vulcanizing agent in amounts of about 0.5-10 parts by weight, each in relation to 100 parts by weight of the solids of the aqueous dispersion.The carpet having backings formed with the composition is excellent in washability so that there takes place little shrinkage and curling after repeated washing.Type: GrantFiled: November 9, 1992Date of Patent: March 28, 1995Assignee: Takeda Chemical Industries, Ltd.Inventors: Masahiro Miwa, Yoshio Kamatani
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Patent number: 5399611Abstract: This invention relates to novel hydroxy-functional polyester diluents, and more particularly, to acrylic-modified hydroxy-functional polyester reactive diluents useful for blending with a variety of thermosetting or thermoplastic film-forming polymers. More specifically, the hydroxy-functional polyester reactive diluents are essentially low molecular weight polyesters derived from triols, and a combination of unsaturated monocarboxylic acids and saturated monocarboxylic acids. These hydroxy-functional polyester diluents may be copolymerized with one or more acrylic monomers, i.e. hydroxy-functional acrylic monomers, and blended with a variety of thermosetting or thermoplastic film-forming polymers. These blends of the film-forming polymers and the hydroxy-functional polyester diluents can be crosslinked with conventional crosslinking agents such as isocyanates and used in the formulation of low VOC paint compositions particularly useful as automotive topcoats.Type: GrantFiled: September 27, 1993Date of Patent: March 21, 1995Assignee: The Sherwin-Williams CompanyInventor: John Mathai
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Patent number: 5393570Abstract: The invention relates to a process for the production of a multicoat coating in which an aqueous transparent topcoat composition containing a polyacrylate resin as binder is employed. The polyacrylate resin can be obtained by adding, either successively or alternately in part amounts, a mixture of a carboxyl-containing ethylenically unsaturated monomer (a1) and a monomer (a2) free from carboxyl groups and a mixture (b) consisting of (meth)acrylic acid esters which are free from carboxyl groups, of hydroxyl-containing ethylenically unsaturated monomers and, if appropriate, of other ethylenically unsaturated monomers to an organic solvent and carrying out a polymerization in the presence of a radical-forming initiator and, at the end of the polymerization, neutralizing the resultant polyacrylate resin and dispersing it in water. The type and amount of (a1), (a2) and (b) are chosen so that the polyacrylate resin has a hydroxyl value of 40 to 200, an acid value of 20 to 100 and a glass transition temperature (T.Type: GrantFiled: November 24, 1992Date of Patent: February 28, 1995Assignee: BASF Lacke+Farben AktiengesellschaftInventors: Stephan Schwarte, Manfred Dangschat, Manfred Reimann, Carlos Westermann
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Patent number: 5393823Abstract: A coating resin composition comprising (I) a vinyl polymer obtained by polymerizing (A) 1 to 100% by weight of a vinyl monomer having at least one unsaturated double bond and at least one siloxy group per molecule and (B) 99 to 0% by weight of a copolymerizable vinyl monomer other than (A) in the presence of a radical generator and (II) a curing agent having reactivity with the hydroxyl groups generated from the polymer (I), and optionally (III) a siloxy group-dissociating catalyst.Type: GrantFiled: October 18, 1993Date of Patent: February 28, 1995Assignee: Dainippon Ink and Chemicals, Inc.Inventors: Hidetoshi Konno, Masataka Ooka, Hirofumi Takeda, Hiroshi Sakamoto
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Patent number: 5389716Abstract: A binder composition for fibrous mats, preferably inorganic fibrous mats, which is fire resistant when cured is provided. The binder composition comprises a stable mixture of an aqueous aldehyde condensation polymer-based resin, a fire retardant latex and, optionally, an effective amount of an aqueous silica colloid, wherein the weight ratio of the latex to the resin is at least 1:1 on a non-volatile weight basis. The effective amount of the silica colloid is an amount sufficient to enhance the flame resistant property of the binder composition after curing and yet remain compatible with the components of the binder composition prior to curing.Type: GrantFiled: June 26, 1992Date of Patent: February 14, 1995Assignee: Georgia-Pacific Resins, Inc.Inventor: Larry R. Graves
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Patent number: 5356987Abstract: In an improved method of curing a topcoat coating composition, at least a portion of the curing catalyst for the topcoat is contained in the basecoat composition. After applying the topcoat, the curing catalyst in the basecoat migrates to the topcoat, where it contributes to the curing the topcoat. Improved intercoat adhesion is obtained. In addition, the disclosed method enables the use of one package silane coating systems.Type: GrantFiled: December 11, 1992Date of Patent: October 18, 1994Assignee: E. I. Du Pont de Nemours and CompanyInventor: Maurice A. S. Stephenson
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Patent number: 5346737Abstract: Incorporation of at least one lubricant and an ethylene-based polymer of the formula E/X/Y wherein E is ethylene, X is methyl acrylate, butyl acrylate, or ethyl acrylate, and Y is glycidyl methacrylate, glycidyl acrylate, or glycidyl vinyl ether into polyacetal compositions results in compositions having good wear resistance and good melt processing thermal stability. The compositions are useful, for example, when molded into parts to be used in sliding applications, such as gears, cams, and conveyor chains.Type: GrantFiled: July 16, 1993Date of Patent: September 13, 1994Assignee: E. I. Du Pont de Nemours and CompanyInventors: Tatsu-Hiro Takahashi, Toshikazu Kobayashi
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Patent number: 5334648Abstract: Emulsion copolymers, for use as urea formaldehyde resin modifiers, are formed from vinyl chloride monomers, softening monomers, and functional monomers. The copolymer when blended with formaldehyde resins and used as a binder yields improved wet and dry tensile strength and better tear resistance. These binders are particularly useful as glass mat binders for the production of roofing shingles.Type: GrantFiled: May 28, 1993Date of Patent: August 2, 1994Assignee: The B. F. Goodrich CompanyInventors: Stephen F. Drews, Leo A. Tischer
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Patent number: 5330846Abstract: Heat-curable, aqueous synthetic resin mixtures for coating woodworking materials, based on etherified melamine/formaldehyde condensates and aqueous synthetic resin dispersions, a process for the preparation of these mixtures and their use for coating woodworking materials.Type: GrantFiled: September 13, 1991Date of Patent: July 19, 1994Assignee: BASF AktiengesellschaftInventors: Wolfgang Eisele, Hans Etling, Walter Pfalzgraf, Walter Pitteroff, Otto Wittmann
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Patent number: 5322865Abstract: An aqueous color paint composition comprising(I) an aqueous dispersion of acrylic polymer fine particles,(II) a modified polyester resin aqueous dispersion obtained by neutralizing, with a basic substance, a modified polyester resin formed by polymerizing (A) a radical-polymerizable unsaturated group-containing polyester resin and (B) a mixture of an ethylenically unsaturated carboxylic acid and another copolymerizable unsaturated monomer and having an acid value of 8 to 200 and a hydroxyl value of 30 to 300, and dispersing the resulting resin in an aqueous dispersion medium,(III) a crosslinking agent, and(IV) a color pigment.The composition is, even if high-solid, good in coatability and excellent in smoothness of the coated film. It is therefore quite suitable as a high-solid base coat composition when coating an outside plate, etc. of automobiles, two-wheelers, electric appliances, etc. requiring beautiful appearance.Type: GrantFiled: January 28, 1993Date of Patent: June 21, 1994Assignee: Kansai Paint Co., Ltd.Inventors: Hiroshi Inoue, Hiromi Harakawa, Akira Kasari, Kenya Suzuki, Yoshinori Kato
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Patent number: 5294661Abstract: A polyoxymethylene composition useful for producing weather-resistant molded articles comprising 60-95% by weight of a polyoxymethylene, a methacrylic acid ester polymer, and a pigment, a dye or a mixture thereof. The weather-resistant molded articles obtained therefrom.Type: GrantFiled: December 7, 1992Date of Patent: March 15, 1994Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Katsuhiko Takaya, Shuichiro Kono
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Process for producing a multi-layer coating using aqueous coating compound aqueous coating compounds
Patent number: 5275847Abstract: The invention relates to a process for the production of a multi-layered coating in which the aqueous top coating composition contains a water-dilutable polyacrylate resin which has a hydroxyl number of 40 to 200, an acid number of 20 to 100 and a glass transition temperature (T.sub.G) of -40.degree. C. to +60.degree. C. and can be prepared by adding a mixture (I) of a (meth)acrylic acid ester and a copolymerizable monomer containing hydroxyl groups to an organic solvent, subjecting the mixture to free radical polymerization and, when the addition of mixture (I) has ended, adding a monomer containing carboxyl groups and polymerizing the mixture further.Type: GrantFiled: January 29, 1993Date of Patent: January 4, 1994Assignee: BASF Lacke+Farben AktiengesellschaftInventors: Stephan Schwarte, Ulrich Poth -
Patent number: 5266361Abstract: The invention relates to a process for the preparation of a multicoat coating which uses an aqueous, clear topcoat composition containing a polyacrylate resin as binder. The polyacrylate resin can be obtained by adding an ethylenically unsaturated monomer (a1) which contains carboxyl groups, and a mixture (b) consisting of (meth)acrylic esters which are free from carboxyl groups and of ethylenically unsaturated monomers which contain hydroxyl groups, to an organic solvent or mixture of solvents either successively or alternately in part amounts and polymerizing the mixture in the presence of a radical-forming initiator, neutralizing the resultant polyacrylate resin after termination of the polymerization and dispersing it in water. The type and amount of (a1) and (b) are chosen such that the polyacrylate resin has a hydroxyl value of 40 to 200, an acid value of 20 to 100 and a glass transition temperature (T.sub.G) of -40.degree. C. to 60.degree. C.Type: GrantFiled: May 3, 1991Date of Patent: November 30, 1993Assignee: BASK Lacke + Farben Aktiengesellschaft DE/DEInventors: Stephan Schwarte, Ulrich Poth
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Patent number: 5244737Abstract: Very small (100 nanometres maximum) non-ionically-stabilised core-sheath addition polymer particles, wherein the core is addition polymer and the sheath polyoxyalkylene chains, at least a portion of which chains are bonded to the core, there being present on each core sufficient chains such that the mass ratio of core to sheath is from 98:2 to 60:40. The particles are prepared by polymerisation in aqueous media initiated at under 40.degree. C. In a preferred embodiment, a seed-feed process is used. The dispersions exhibit excellent rheological characteristics and are useful, for example, as film-formers in coating compositions.Type: GrantFiled: June 10, 1992Date of Patent: September 14, 1993Assignee: ICI Australia Operations Proprietary LimitedInventors: Geoffrey B. Anderson, David S. Bignell, Iain B. Cook, Bruce Leary, Christopher J. Lyons
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Patent number: 5244960Abstract: A thermosetting coating composition contains:a. a stable aqueous polymer emulsion containing an aqueous continuous phase, a dispersed polymeric phase and a polyhydroxyl functional non-ionic surfactant wherein the hydroxyl groups are separated by 4 or more carbon atoms and the surfactant is substantially free of oxyethylene units; andb. a crosslinking agent adapted to crosslink the emulsion polymer and surfactant to form a film.Type: GrantFiled: November 9, 1992Date of Patent: September 14, 1993Assignee: PPG Industries, Inc.Inventors: Shanti Swarup, Gregory J. McCollum, Charles M. Kania
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Patent number: 5244946Abstract: Thermoplastic polymer blends comprising a monovinylidene aromatic copolymer, an acetal polymer and an elastomeric material such as a thermoplastic polyurethane or an elastomeric copolyester have good processability and a beneficial combination of physical and chemical properties including thermal/dimensional stability, impact resistance, chemical resistance and creep resistance. Said polymer blends are suitable for use in the preparation of a variety of molded utilitarian articles having good appearance and paintability.Type: GrantFiled: April 8, 1992Date of Patent: September 14, 1993Assignee: The Dow Chemical CompanyInventors: Martin J. Guest, P. F. M. v/d Berghen, Ludo M. Aerts, Antonios Gkogkidis, Abraham F. de Bert
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Patent number: 5219557Abstract: An aqueous covering agent containing a water-soluble base polymer and a further polymer for neutralizing the aqueous solution of the base polymer is provided for the sealing of microscopy specimens. The aqueous covering agent maintains the coloring of the specimens by staining techniques for prolonged periods of time.Type: GrantFiled: December 23, 1987Date of Patent: June 15, 1993Assignee: Merck Patent Gesellschaft Mit Beschrankter HaftungInventors: Renate Kaschek, Erwin Rieke
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Patent number: 5216079Abstract: Lubricant systems are provided in which a polyolefin or polyolefin/polytetrafluoroethylene blend functions as a lubricant in a polymer matrix material. The resulting polymer composites containing about 1 to 30 weight percent of the novel lubricant or lubricant blend have greatly improved friction and wear properties, including lower coefficients of friction and increased surface wear resistence. The polyolefin does not remain as discrete, identifiable particles after mixing with the polymer matrix, and has an average molecular weight of less than 500,000.Type: GrantFiled: February 23, 1990Date of Patent: June 1, 1993Assignee: Kawasaki LNP Inc.Inventors: Jane M. Crosby, John E. Theberge
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Patent number: 5212228Abstract: Corrugating adhesives and premixes containing polyvinyl alcohol reacted with ketone-aldehyde resins are provided which exhibit stable viscosities and excellent adhesive properties. The premix formulations include PVA reacted with a selected resin, preferably in the absence of starch or borax, in order to yield pourable compositions which retain a stable viscosity over extended storage periods at ambient temperature. The premixes can be added to adhesive formulations including starch, alkali and borax to give corrugating adhesives which resist premature gelation and have good wet tack and adhesive properties.Type: GrantFiled: October 31, 1991Date of Patent: May 18, 1993Inventor: Donald C. Sistrunk
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Patent number: 5204390Abstract: The invention relates to a PSA hot melt composition that exhibits adhesive stability when exposed to ultraviolet light and is stable when contacted with plasticized surfaces.Type: GrantFiled: July 16, 1992Date of Patent: April 20, 1993Assignee: H.B. Fuller CompanyInventors: James P. Szymanski, Eugene R. Simmons, Jeffrey S. Lindquist
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Patent number: 5200461Abstract: Disclosed is a micro gel particle having an anionic charge for which it is electrodepositable by itself. The present invention provides a process for preparing an anionic micro gel particle dispersion comprising:emulsifying in an aqueous medium a resin composition comprising(A) 100 parts by weight of an anionic film-forming aqueous resin, and(B) 10 to 250 parts by weight of a thermosetting crosslinking agent which is self-crosslinked or crosslinked with said aqueous resin (A) in terms of condensation or addition reactionexcepting the combination of an acrylic resin and an alcoxylated methylol melamine; parts by weight being based on the solid content of the resin composition, andheating the resultant emulsion to above a crosslinkable temperature of said crosslinking agent (B).Type: GrantFiled: July 5, 1990Date of Patent: April 6, 1993Assignee: Nippon Paint Co., Ltd.Inventors: Yasuyuki Tsuchiya, Kenshiro Tobinaga
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Patent number: 5191011Abstract: Polyacetal compositions are made by melt-blending a polyacetal base resin A, a filler material B, and a thermoplastic acrylic resin C in weight ratios which satisfy the following formulas (1) and (2):(B+C)/(A+B+C)=0.03 to 0.06 (1)C/(B+C)=0.05 to 0.95 (2).The thermoplastic acrylic resin C is most preferably selected from homopolymers of methyl methacrylate or copolymers which are mainly comprised of units derived from methyl methacrylate. The melt-blending of the polyacetal base resin A with the thermoplastic acrylic resin C is accomplished in the presence of a filler material B having a surface tension which is greater than that of the thermoplastic acrylic resin C at the melt-blending temperature. In this manner, a continuous phase of the thermoplastic acrylic resin is formed in a matrix of the polyacetal base resin such that the filler material is encapsulated in the continuous acrylic resin phase.Type: GrantFiled: June 15, 1992Date of Patent: March 2, 1993Assignee: Polyplastics Co., Ltd.Inventors: Yoshihisa Tajima, Mitsuru Yokouchi, Masaru Miura
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Patent number: 5182174Abstract: A coating composition is disclosed comprising an organosilane polymer, a polyester or a copolymer thereof, an amino resin crosslinking agent, and a silsesquioxane compound. Such a composition is especially useful for providing a flexible finish on non-metallic parts of automobiles and trucks. This finish has the advantage of superior etch resistance and outstanding weatherability and durability characteristics.Type: GrantFiled: May 13, 1991Date of Patent: January 26, 1993Assignee: E. I. du Pont de Nemours and CompanyInventor: Maurice A. S. Stephenson
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Patent number: 5180772Abstract: Vinyl acetate/ethylene (VAE) copolymer emulsions having extended shelf life which are particularly suited for use as binders of nonwoven substrates. The copolymer emulsions are prepared by incorporating 1 to 45 wt % tetramethylol glycoluril, based on the amount of vinyl acetate in the copolymer, into an aqueous dispersion of a copolymer consisting essentially of 60 to 94 wt % vinyl acetate, 5 to 30 wt % ethylene and 1 to 10 wt % of a crosslinkable comonomer. Suitable crosslinking monomers include N-acrylamidoglycolic acid and N-methylol acrylamide. Nonwoven products formed by depositing the emulsion onto a nonwoven substrate exhibit significantly improved resistance to organic solvents.Type: GrantFiled: February 28, 1989Date of Patent: January 19, 1993Assignee: Air Products and Chemicals, Inc.Inventors: Chung-Ling Mao, Joel E. Goldstein, John G. Iacoviello
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Patent number: 5173532Abstract: Polyacetal resin molding compositions and sliding members formed thereof exhibit anti-friction and abrasion-resistance properties. The polyacetal resin molding compositions include (A) 100 parts by weight of a polyacetal base resin, (B) between 0.5 to 40 parts by weight of a branched or cross-linked graft copolymer which is a graft-reaction product of (a) an olefin polymer, and (b) a vinyl or ether polymer, (C) between 0.1 to 20 parts by weight of a lubricant, and (D) between 0.5 to 30 parts by weight of an inorganic powder having a mean particle diameter of 50 .mu.m or less and a content of particles having a particle diameter of 100 .mu.m or less of at least 95%.Type: GrantFiled: March 10, 1992Date of Patent: December 22, 1992Assignee: Polyplastics Co., Ltd.Inventors: Toshihiko Endo, Osamu Kanoto, Katsunori Takayama, Nobuyuki Matsunaga
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Patent number: 5166254Abstract: A waterbased coating composition formed of an acrylic latex and an acrylic hydrosol dispersed in an aqueous carrier and has a pH of about 7-10; wherein the binder is a blend of an acrylic latex polymer having a particle size of about 0.06-0.20 microns and an acrylic hydrosol polymer having a particle size of less than 0.30 microns; wherein the blend containsa. a methylol (meth)acrylamide carboxyl containing acrylic latex polymer of polymerized monomers of alkyl methacrylate, alkyl acrylate or mixtures thereof, 1-15% by weight of methylol methacrylamide, methylol acrylamide or mixtures thereof, 0.5-10% by weight of ethylenically unsaturated carboxylic acid having reactive carboxyl groups, 0.5-10% by weight of ethylenically unsaturated hydroxyl and the carboxyl groups of the polymer are reacted with ammonia or an amine;b. an acrylic hydrosol polymer of methylol (meth)acrylamide acrylic polymer containing carboxyl and hydroxyl groups about 0.5-10% by weight of an ethylenically unsaturated carboxylic acid, 0.Type: GrantFiled: December 3, 1990Date of Patent: November 24, 1992Assignee: E. I. Du Pont de Nemours and CompanyInventors: Stanley K. Nickle, Ervin R. Werner, Jr.
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Patent number: 5160484Abstract: A non-latex composition for saturating paper comprising a suitable hydrophobic sizing agent, ethylene acrylic acid co-polymer, and a softening agent. The ethylene acrylic acid copolymer is provided as bulk or solvent polymerized solid and rendered soluble in an aqueous alkali solution. The paper may be formulated to be repulpable. Methods for making the paper-saturating composition, methods for saturating paper, and the resulting paper are also disclosed.Type: GrantFiled: September 28, 1990Date of Patent: November 3, 1992Assignee: Cranston Print Works CompanyInventor: Koyu P. Nikoloff
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Patent number: 5143961Abstract: Normally water insoluble hot melt adhesive compositions containing structural polymers such as A-B-A block copolymers, butyl rubbers, polyesters, ethylene vinyl acetates, ethylene acrylic acid polymers can be made sensitive to the action of water using an effective water sensitizing amount of a polyalkyloxazoline polymer in the hot melt adhesive. The polyalkyloxazoline polymer can be incorporated into a single phase adhesive composition with the structural polymer using an effective amount of a hydroxyl or carboxylic acid compound.Type: GrantFiled: December 21, 1989Date of Patent: September 1, 1992Assignee: H. B. Fuller Licensing & Financing Inc.Inventors: Steven L. Scholl, Eugene R. Simmons, Keith C. Knutson, William L. Bunnelle
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Patent number: 5141814Abstract: Very small (100 nanometers maximum) non-ionically-stabilized core-sheath addition polymer particles, wherein the core is addition polymer and the sheath polyoxylkylene chains, at least a portion of which chains are bonded to the core, there being present on each core sufficient chains such that the mass ratio of core to sheath is from 98:2 to 60:40. The particles are prepared by polymerization in aqueous media initiated at under 40.degree. C. In a preferred embodiment, a seed-feed process is used. The dispersions exhibit excellent rheological characteristics and are useful, for example, as film-formers in coating compositions.Type: GrantFiled: March 23, 1990Date of Patent: August 25, 1992Assignee: ICI Australia Operations Proprietary Ltd.Inventors: Geoffrey B. Anderson, David S. Bignell, Iain B. Cook, Bruce Leary, Christopher J. Lyons
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Patent number: 5118734Abstract: A weather-resistantt polyacetal molding composition are comprised of a polyacetal base resin, and a weather-resistance effective amount of a stabilization package which includes (i) a weather stabilizer for the polyacetal base resin, (ii) an acrylic resin, and (iii) an oxyalkylene polymer comprised of repeating oxyalkylene units each having 2 to 8 adjacent carbon atoms.Type: GrantFiled: September 11, 1991Date of Patent: June 2, 1992Assignee: Polyplastics Co., Ltd.Inventor: Toru Katsumata
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Patent number: 5114999Abstract: Disclosed is a binder insolubilizer for use in binder-containing paper coating compositions, the insolubilizer consisting essentially of an aqueous formulation containing at least about 15 weight percent of titratable glyoxal and at least one polyhydroxy compound.Type: GrantFiled: April 3, 1989Date of Patent: May 19, 1992Assignee: PPG Industries, Inc.Inventors: Sai H. Hui, W. Bruce Darlington
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Patent number: 5104922Abstract: A stable waterborne high solids metallic flake pigment dispersion containing an aqueous carrier, film forming binder and metallic flake pigment and having a solids content of about 40-90% by weight; wherein the film forming polymer is a phosphated acrylic polymer neutralized with ammonia or a primary, secondary or tertiary amine and contains metallic flake pigments in a pigment to binder weight ratio of about 30/100-1000/100 and is non-reactive with the binder and the dispersion has a pH of about 7-9.Type: GrantFiled: October 22, 1990Date of Patent: April 14, 1992Assignee: E. I. Du Pont de Nemours and CompanyInventor: David C. K. Chang
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Patent number: 5096954Abstract: An aqueous coating composition capable of forming a film having excellent water resistance, high hardness, excellent processability and excellent shelf stability, and the coating composition comprises:(a) 30 to 65 parts by weight of an aqueous acrylic resin, which is produced by copolymerizing monomers (i) to (v):(i) 25 to 35% by weight of at least one aromatic vinyl monomer,(ii) 25 to 45% by weight of at least one alkyl (meth)acrylate,(iii) 1 to 15% by weight of at least one .alpha.,.beta.-monoethylenically unsaturated carboxylic acid,(iv) 5 to 25% by weight of at least one hydroxyalkyl (meth)acrylate, and(v) 1 to 25% by weight of at least one N-alkoxymethyl (meth)acrylamide,(b) 20 to 50 parts by weight of an aqueous amino resin, and(c) 5 to 25 parts by weight of a polyol,provided that the total amount of the above (a), (b) and (c) is 100 parts by weight.Type: GrantFiled: April 27, 1990Date of Patent: March 17, 1992Assignee: Toyo Ink Manufacturing Co., Ltd.Inventors: Takeshi Yamada, Yukihiro Ueda, Ryosuke Ohtomo, Tetuhisa Nakamura