Ester Contains An Oxygen Atom Other Than As Part Of A Carboxylic Acid Ester Group Patents (Class 525/223)
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Patent number: 5554682Abstract: A hydroxy-functional polymeric dispersant which is substantially free of acid groups, amine groups, and ethylenic unsaturation, the dispersant being especially adapted for dispersing pigments therein and being compatible with a variety of film-forming polymers, said dispersant being the free radical addition polymerization reaction product of a mixture of monomers consisting essentially of:(a) 15-30% by weight styrene; and(b) 15-30% by weight of at least one alkyl methacrylate monomer having 1 to 16 carbon atoms in the alkyl group; and(c) 20-60% by weight of at least one alkyl acrylate monomer having 1 to 16 carbon atoms in the alkyl group; and(d) 7-25% by weight of at least one hydroxy-functional ethylenically unsaturated monomer copolymerizable with monomers (a) (b) and (c);wherein said polymeric dispersant has a weight average molecular weight of 18,000 to 24,000, a number average molecular weight of 4,500 to 7,400, and a polydispersity of 2.9 to 4.2.Type: GrantFiled: May 31, 1995Date of Patent: September 10, 1996Assignee: The Sherwin-Williams CompanyInventors: Rodney M. Harris, Maqsood S. Ahmed, Thomas A. Renner
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Patent number: 5549932Abstract: Thermosetting composition comprises a compound having in the molecule two or more carboxyl groups blocked by a vinyl ether compound, a vinyl thioether compound or a hetero compound having a vinyl type double bond and oxygen or sulfur as the hetero atom, a compound having two or more reactive functional groups which can form a chemical bond with the blocked carboxyl compound by heating, a specific vinyl ether or vinyl thioether and a thermal latent acid catalyst. The blocked carboxy group of the first compound and the reactive functional group of the second compound may be comprised in the same molecule. The thermosetting composition gives cured products having excellent chemical properties, physical properties, weathering resistant and storage stability and is advantageously utilized for coating compositions, ink, adhesive and molded plastics.Type: GrantFiled: March 9, 1995Date of Patent: August 27, 1996Assignee: Nippon Oil and Fats Company, LimitedInventors: Masahiro Ishidoya, Kishio Shibato, Keiji Komoto, Kenji Shibamoto, Mitsuyuki Mashita, Osamu Ohe
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Patent number: 5543463Abstract: Disclosed is a technology for providing a thermoplastic resin composition or resin laminate having an excellent mat property by using, as matting agent, a copolymer (B) prepared by polymerizing 0.5 to 80% by weight of a hydroxyalkyl (meth)acrylate having a C.sub.1-8 alkyl group and 10 to 99% by weight of an alkyl methacrylate having a C.sub.1-13 alkyl group, with a C.sub.1-8 alkyl acrylate, vinyl aromatic monomer, another vinyl monomer, and a cross-linking monomer being optional.Type: GrantFiled: May 27, 1994Date of Patent: August 6, 1996Assignee: Mitsubishi Rayon Company Ltd.Inventors: Yukio Kitaike, Hiroki Hatakeyama, Suehiro Tayama, Kazuhiko Nakagawa
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Patent number: 5536786Abstract: Adhesive beads comprise a core comprising a pressure sensitive adhesive material and an essentially discontinuous organic polymer disposed about the core. The beads are free-flowing at room temperature. Upon application of heat and/or pressure the core is activated and blends with the coating to provide a pressure sensitive adhesive.Type: GrantFiled: April 25, 1994Date of Patent: July 16, 1996Assignee: Minnesota Mining and Manufacturing CompanyInventors: Joseph P. Callahan, Jr., Rudyard M. Enanoza, Mark D. Weigel
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Patent number: 5512612Abstract: A pressure sensitive adhesive that employs a water-dispersible polymer is provided. In one embodiment of the invention the adhesive comprises microparticles and the water-dispersible component. In another embodiment the adhesive comprises a novel water-dispersible polymer that contains a plurality of poly(alkoxyalkyl) acrylate units as a major component.The pressure sensitive adhesive may be provided as a tape and used with labels for containers, sterilization indicator tapes and labels, closure systems for envelopes, surgical wrappers, and mammalian body coverings. It may also be used in the preparation of paper web splices.In one embodiment of the invention the tape is repulpable. In another embodiment it is launderable.Type: GrantFiled: April 4, 1994Date of Patent: April 30, 1996Assignee: Minnesota Mining and Manufacturing CompanyInventors: Mary L. Brown, Richard J. Goetz, Cheryl L. Moore, Donald R. Battles
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Patent number: 5502110Abstract: A resin composition for an electrophotographic toner is here disclosed which comprises an ethylene series high polymer (Y) and an ethylene series polymer (X) prepared from 100 parts of a bifunctional ethylene series unsaturated monomer and 0.01-10 parts by weight of a substance having three or more peroxide groups in the molecule and/or a substance having one or more unsaturated functional groups and one or more peroxide groups in the molecule, Mw/Mb (Mw is weight-average molecular weight, and Mb is weight-average molecular weight between crosslinking points) of said polymer (X) being from 2 to 99, Mw of said polymer (X) being 50,000 or less. This resin composition is excellent in the balance of various physical properties required for the toner, and particularly, it is excellent in offset resistance and toner strength.Type: GrantFiled: April 27, 1993Date of Patent: March 26, 1996Assignee: Mitsui Toatsu Chemicals, IncorporatedInventors: Katsuru Matsumoto, Nobuhiro Hirayama, Kenji Uchiyama, Shoji Kawasaki, Tamami Fukui, Katsuo Uramoto
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Patent number: 5475055Abstract: A thermoplastic molding material containing, based on the sum of its constituents A, B and C,A: 70 to 99% by weight of a thermoplastic resin A comprising, based on A,A1: 50 to 100% by weight of a hard matrix A1 comprising, based on A1,A11: 50 to 95% by weight of units of an aromatic vinyl compound or methyl methacrylate or their mixtures (A11) andA12: 5 to 50% by weight of units of acrylonitrile A12;A2: up to 50% by weight of a rubber-elastic particulate graft copolymer A2 comprising, based on A2,A21: 30 to 80% by weight of at least one elastomeric graft base A21 having a median particle size of from 30 to 1000 nm comprising, based on A21,A211: 50 to 100% by weight of units of a 1,3-diene or a C.sub.4 -C.sub.Type: GrantFiled: October 24, 1994Date of Patent: December 12, 1995Assignee: BASF AktiengesellschaftInventors: Andreas Deckers, Norbert Guentherberg, Rainer Bueschl, Ekkehard Jahns
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Patent number: 5470895Abstract: A process that is provided for agglomerating rubber particles of a rubbery latex. The process involves producing an agglomerating agent which is in the form of latex having particles which comprise high molecular weight polyoxyethylene bound therein. The agglomerating agent is affixed with an elastomeric latex to form agglomerated elastomeric particles. The process results in the formation of uniform size agglomerating particles, and utilizes a non-surfactant form of polyoxyethylene, which can be utilized in small amounts to yield the desired agglomerated elastomeric latex. The agglomerated particles may then be utilized as the substrate for graft copolymers, such as acrylonitrile-butadiene-styrene graft copolymers.Type: GrantFiled: June 13, 1994Date of Patent: November 28, 1995Assignee: General Electric CompanyInventors: Kevin R. Kidder, Vijaya K. Kuruganti, Donald M. Kulich, John F. Graf
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Patent number: 5466754Abstract: A curable resin composition utilizing as the crosslinking mechanism thereof an acid catalyzed addition reaction of a cyclic alkylenecarbonate group with an alcoholic hydroxyl group is disclosed. The composition contains a compound or polymer having a plurality of 6-membered cyclic alkylenecarbonate groups and a polymer having a plurality of alcoholic hydroxyl groups. A polymer having pluralities of the cyclic alkylenecarbonate and hydroxyl groups in a single entity may also be used. The composition cures at room or elevated temperatures depending upon the acidity and amount of particular acid catalyst incorporated to the composition.Type: GrantFiled: January 27, 1995Date of Patent: November 14, 1995Assignees: Nippon Paint Co., Ltd., Daicel Chemical Industries, Ltd.Inventors: Takao Morimoto, Shinji Nakano
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Patent number: 5430089Abstract: A hydroxy functional polymeric dispersant which is substantially free of acid groups, amine groups, and ethylenic unsaturation, the dispersant being especially adapted for dispersing pigments therein and being compatible with a variety of film-forming polymers, said dispersant being the free radical addition polymerization reaction product of a mixture of monomers consisting essentially of:(a) 15-30% by weight styrene; and(b) 15-30% by weight of at least one alkyl methacrylate monomer having 1 to 16 carbon atoms in the alkyl group; and(c) 20-60% by weight of at least one alkyl acrylate monomer having 1 to 16 carbon atoms in the alkyl group; and(d) 7-25% by weight of at least one hydroxy-functional ethylenically unsaturated monomer copolymerizable with monomers (a) (b) and (c);wherein said polymeric dispersant has a weight average molecular weight of 18,000 to 24,000, a number average molecular weight of 4,500 to 7,400, and a polydispersity of 2.9 to 4.2.Type: GrantFiled: October 26, 1994Date of Patent: July 4, 1995Assignee: The Sherwin-Williams CompanyInventors: Rodney M. Harris, Maqsood S. Ahmed, Thomas A. Renner
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Patent number: 5419929Abstract: Thermosetting composition comprises a compound having in the molecule two or more carboxyl groups blocked by a vinyl ether compound, a vinyl thioether compound or a hetero compound having a vinyl type double bond and oxygen or sulfur as the hetero atom, a compound having two or more reactive functional groups which can form a chemical bond with the blocked carboxyl compound by heating, a specific vinyl ether or vinyl thioether and a thermal latent acid catalyst. The blocked carboxyl group of the first compound and the reactive functional group of the second compound may be comprised in the same molecule. The thermosetting composition gives cured products having excellent chemical properties, physical properties, weathering resistance and storage stability and is advantageously utilized for coating compositions, ink, adhesive and molded plastics.Type: GrantFiled: September 21, 1992Date of Patent: May 30, 1995Assignee: Nippon Oil and Fats Company, LimitedInventors: Masahiro Ishidoya, Kishio Shibato, Keiji Komoto, Kenji Shibamoto, Mitsuyuki Mashita, Osamu Ohe
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Patent number: 5412038Abstract: A process for crosslinking a polymer containing hydroxyl groups which process comprises:(a) forming a mixture of said polymer and crosslinking amount of a poly(alpha, beta-alkenylcarboxylate), and(b) maintaining the mixture at conditions under which the polymer cures by reaction of the hydroxyl groups of the polymer with the poly(alpha, beta-alkenylcarboxylate) to produce a crosslinked polymer.Type: GrantFiled: June 28, 1993Date of Patent: May 2, 1995Assignee: Union Carbide Chemicals & Plastics Technology CorporationInventors: Rex E. Murray, Robert F. Eaton, Thomas A. Upshaw, James W. Taylor, David R. Bassett, David M. Lincoln
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Patent number: 5397614Abstract: A pressure sensitive adhesive which is dispersible at an alkaline pH but not at an acidic or a neutral pH is disclosed. The adhesive is essentially free from plasticizers (i.e., it contains less than 0.1 part of plasticizer per part of polymer).The polymer is formed from A, B and C monomers. The A monomer is hydrophobic and is an acrylic or methacrylic ester of a non-tertiary C.sub.2 -C.sub.14 alcohol. It comprises from 50 to 80 weight % of the polymer.The B monomer contains .beta.-carboxyethyl acrylate (BCEA) or a salt thereof or a mixture of BCEA or a salt thereof with a vinyl carboxylic acid or a salt thereof. The polymer contains from 10 to 30 weight % of B monomer. The acid groups of the polymer have been neutralized with from 0.5 to 2 equivalents of an alkali metal hydroxide.The C monomer is an X--Y--Z macromer. X is copolymerizable with the A and B monomers. Y is a divalent linking group.Type: GrantFiled: July 16, 1993Date of Patent: March 14, 1995Assignee: Minnesota Mining and Manufacturing CompanyInventors: Gregg A. Patnode, Donald R. Battles, Francois C. D'Haese
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Patent number: 5395961Abstract: Disclosed is a method of reducing the decomposition of liquid acetates and increasing their storage life. A soluble amine having a pH in water between 9 and 12 is added to the acetate. Also disclosed is a composition of about 1 to about 50 ppm of the amine in the acetate.Type: GrantFiled: July 26, 1993Date of Patent: March 7, 1995Assignee: Occidental Chemical CorporationInventors: J. Steven Qi, Garra C. Lester
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Patent number: 5387466Abstract: A water-absorbent pressure sensitive adhesive composition is provided comprising (a) a continuous phase comprised of a copolymer of a hydrophobic monomer and a hydrophilic monomer, said monomers being present in said copolymer in a weight ratio of from about 50:50 to about 90:10, respectively; and (b) a non-particulate discontinuous phase comprised of domains of a hydrophilic homopolymer or copolymer dispersed throughout said continuous phase.Type: GrantFiled: May 31, 1994Date of Patent: February 7, 1995Assignee: Adhesives Research, Inc.Inventors: Donald J. Therriault, Herbert M. Hand, Sr.
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Patent number: 5378759Abstract: Polymers containing a high percentage of vinyl alcohol units may be blended with copolymers of alkyl methacrylates and unsaturated organic acids and processed into sheet, film, fiber and other objects which exhibit an useful balance of barrier and strength properties.Type: GrantFiled: December 10, 1992Date of Patent: January 3, 1995Assignee: Rohm and Haas CompanyInventors: Robert M. Amici, Edward E. LaFleur, William J. Work
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Patent number: 5367027Abstract: The present invention provides a curable resin composition which provides cured film having not only excellent acid resistance but also good weather resistance and good mar resistance. The curable resin composition comprises (a) a hydroxyl and carboxyl group containing polymer, (b) a carboxyl and carboxylate group containing polymer, and (c) a hydroxyl and epoxy group containing polymer.Type: GrantFiled: July 22, 1993Date of Patent: November 22, 1994Assignee: Nippon Paint Co., Ltd.Inventors: Akira Fushimi, Tsuneyoshi Hisai, Kazuhiko Takeoka, Yoshitaka Okude
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Patent number: 5362806Abstract: An aqueous-developable article is made from a photosensitive prepolymer made by reacting together (a) maleated alkadiene polymer or copolymer, (b) hydroxyalkyl(meth)acrylate or hydroxy(polycaprolactone)acrylate, (c) polybutadiene diol or polyisoprene diol, and (d) monohydroxy-terminated thermoplastic polymer, such as monohydroxy-terminated polystyrene or monohydroxy-terminated polymethylmethacrylate, followed by hydrolysis and at least partial neutralization by reaction with a base, e.g. NaOH, to form an ionomer. When formulated with photoinitiator and (optional) unsaturated monomers, the ionomer is particularly useful in making photopolymer-based flexographic printing plates.Type: GrantFiled: January 7, 1993Date of Patent: November 8, 1994Assignee: W. R. Grace & Co.-Conn.Inventors: Cynthia L. Ebner, Srinivas K. Mirle
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Patent number: 5352740Abstract: Thermosetting composition is excellent in storage stability, useful as one component thermosetting composition, gives cured products having excellent chemical properties, physical properties and weathering resistance and is favorably utilized in coating compositions, ink, adhesive and molded plastics.The thermosetting composition comprises a compound having in the molecule two or more carboxyl groups blocked by a vinyl ether compound, a vinyl thioether compound or a hetero compound having a vinyl type double bond and oxygen or sulfur as the hetero atom, a compound having two or more reactive functional groups which can form a chemical bond with the blocked carboxyl compound by heating and optionally a thermal latent acid catalyst. The blocked carboxyl group of the first compound and the reactive functional group of the second compound may be comprised in the same molecule.Type: GrantFiled: April 4, 1991Date of Patent: October 4, 1994Assignee: Nippon Oil and Fats Company, LimitedInventors: Masahiro Ishidoya, Kishio Shibato, Keiji Komoto, Kenji Shibamoto, Mitsuyuki Mashita, Osamu Ohe
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Patent number: 5349019Abstract: New copolymers, mixtures thereof with poly(meth)acrylate esters and the use thereof for improving the cold fluidity of crude oils.Copolymers comprising as comonomers therein from 50 to 99.9% by weight of a C.sub.14 -C.sub.22 -alkyl(meth)acrylate and 50 to 0.1% by weight of a comonomer derived from a compound comprising a single polymerizable C.dbd.C group and these copolymers or their mixture with C.sub.14 -C.sub.22 -alkyl poly(meth)acrylates having enhanced pour point depressant properties.Type: GrantFiled: September 2, 1993Date of Patent: September 20, 1994Assignee: HoechstInventors: Herbert Wirtz, Sigmar-Peter von Halasz, Michael Feustel, Juliane Balzer
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Patent number: 5342887Abstract: The invention relates to a thermoplastic elastomer composition comprising a) a polyolefin and b) a crosslinked ethylene copolymer, the crosslinks between the main chains of the molecules of which have been formed of the hetero groups of at least two comonomer units being in different main chains and at least two hetero groups of the crosslinking-agent molecule being chemically attached to each other. The problem of such a mixture is that the lipophilic thermoplastic polyolefin and the ethylene copolymer to be crosslinked with its polar hetero groups are not compatible. Now, the problem has been solved by forming the crosslinks between the main chains so that either the hetero group of the comonomer unit in the main chain or then the hetero group of the crosslinking agent molecule always is a hydroxyl group, the hydroxyl group always forming a permanent oxygen crosslink bond with the other hetero group attached to it.Type: GrantFiled: December 23, 1992Date of Patent: August 30, 1994Assignee: Neste OyInventors: Christer Bergstrom, Gunilla Krook
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Patent number: 5321090Abstract: Disclosed is a polyvinyl chloride resin powder composition containing (A) a granular polyvinyl chloride resin and (B) a fine granular vinyl chloride copolymer resin containing a copolymer composed of a vinyl chloride monomer and a carbonyloxy group-containing vinyl monomer, along with a stabilizer and a plasticizer. The composition is suitable for powder molding to produce covering materials of automotive interiors.Type: GrantFiled: November 4, 1992Date of Patent: June 14, 1994Assignee: Sumitomo Chemical Company, LimitedInventors: Yoshihiro Nakatsuji, Toshio Igarashi, Akira Wakatsuki, Yuu Shida, Hikaru Shimizu
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Patent number: 5321080Abstract: A resin composition comprising an olefin resin (A), a copolymer of olefin with non-conjugated diene (B) and at least one polymer (C) selected from the group consisting of the following polymers;C1: diene polymer containing a hydroxyl group or the hydrogenation product thereof,C2: polymer containing a hydroxyl group,C3: polymer containing a carboxyl group (including an acid anhydride group),C4: polymer containing an amino group and/or imino group, andC5: polymer containing an epoxy group; and optionally an elastomer (D), filler (E) and at least one compound (F) selected from the group consisting of the following compounds;F1: organotin compound,F2: tertiary amine compound, andF3: phosphorus oxy compound.The moldings prepared from this resin composition have remarkable adhesive properties for paints, adhesives and printing inks. Thus, paints, etc. may be applied directly to the moldings, without surface treatment or washing thereof.Type: GrantFiled: July 29, 1992Date of Patent: June 14, 1994Assignee: Mitsubishi Petrochemical Company, Ltd.Inventors: Yuta Kumano, Sadao Kitagawa, Mitsushige Baba, Shiroh Gotoh
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Patent number: 5317060Abstract: A process for producing a composite resin for a toner, comprising the steps of: mixing, in water, (a) a low-molecular weight polymer powder comprising particles, not less than 80% by weight of the particles having a diameter of from 20 to 2000 microns with (b) a high-molecular weight polymer emulsion; subjecting the thus obtained mixture to a coagulation treatment; and heating the resulting mixture to obtain a composite resin in which the low-molecular weight polymer particle and the high-molecular weight polymer are fixed and homogeneously mixed with each other.Type: GrantFiled: November 30, 1992Date of Patent: May 31, 1994Assignee: Fujikura Kasei Co., Ltd.Inventors: Yutaka Kukimoto, Hikoji Ueda, Kozo Suzuki, Yoshihiko Koshiyama
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Patent number: 5306774Abstract: A miscible blend comprising (a) a poly(alkylene oxide) vinyl carboxylic ester polymer and (b) a polymer bearing acidic functional groups has been discovered, with the blend being employable as a protective coating, membrane or film exhibiting good mechanical stablility and chemical resistance.Type: GrantFiled: December 2, 1991Date of Patent: April 26, 1994Assignee: Eastman Kodak CompanyInventors: Christine J. T. Landry, David M. Teegarden, Bradley K. Coltrain, Wayne T. Ferrar
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Patent number: 5278249Abstract: A curable coating composition comprises a hydroxy-functional component (A) having at least two hydroxy groups per molecule and an anhydride-functional component (B) having at least two carboxylic acid anhydride groups per molecule. At least one of the components (A) and (B) is a film-forming polymer. The coating composition contains amidine groups for accelerating the curing reaction between the hydroxy groups of component (A) and the anhydride groups of component (B). The amidine groups are present in the molecule of either of the components (A) or (B) and/or are present in the form of a separate compound containing an amidine group. The component or compound containing an amidine group generally has the formula ##STR1## in which R.sup.1 represents hydrogen, or an organic group attached through a carbon atom, or an amine group which can be substituted, or a hydroxy group or etherified hydroxy group; R.sup.2 and R.sup.Type: GrantFiled: January 10, 1992Date of Patent: January 11, 1994Assignee: Courtaulds Coatings (Holdings) LimitedInventor: Alastair R. Marrion
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Patent number: 5266402Abstract: A pressure-sensitive adhesive comprising an acrylate matrix, and swellable, infusible, insoluble, elastomeric acrylate microspheres, each of the microspheres having discrete boundaries, the microspheres and the matrix forming an interpenetrating polymer network within the boundaries of the microspheres.Type: GrantFiled: December 18, 1990Date of Patent: November 30, 1993Assignee: Minnesota Mining and Manufacturing CompanyInventors: Joaquin Delgado, Spencer F. Silver, Margaret M. Sheridan
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Patent number: 5231137Abstract: Novel grafted polymers having backbones formed from unsaturated monomers and having pendent isocyanate containing sidechains derived from isopropenyl-alpha,alpha-dimethylbenzyl isocyanate or copolymers thereof are described.Curable coating and molding compositions employing the novel grafted polymers of the invention in combination with isocyanate reactive materials are also described.Type: GrantFiled: August 17, 1992Date of Patent: July 27, 1993Assignee: American Cyanamid CompanyInventors: Michael M. Fisher, Leroy A. White, Howard R. Lucas
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Patent number: 5212245Abstract: Thermosetting powder coating compositions comprising a curable particulate resinous material and a flow control agent which is a copolymer of an alkyl acrylate or methacrylate containing from 6 to 20 carbon atoms in the alkyl group and a hydroxyalkyl acrylate or methacrylate. The flow modifiers enhance the rheology of the thermosetting powder coating composition providing for smoother coatings while at the same time not adversely affecting appearance or adhesion with associated coatings, for example, previously applied electrodeposited primers or subsequently applied topcoats.Type: GrantFiled: March 4, 1992Date of Patent: May 18, 1993Assignee: PPG Industries, Inc.Inventors: James R. Franks, Paul H. Pettit, Jr.
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Patent number: 5198498Abstract: The stabilized binder is a mixture of two copolymers and at least one curing agent. The one copolymer contains fluorine or silicon and a UV absorber in copolymierized form. The other copolymer is an acrylic resin. Suitalbe curing agents are melamine resins or polyisocyanates.Type: GrantFiled: January 9, 1992Date of Patent: March 30, 1993Assignee: Ciba-Geigy CorporationInventors: Andreas Valet, Roger Meuwly, Mario Slongo
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Patent number: 5191024Abstract: A hydrogenated diene block copolymer having a polystyrene-reduced number-average molecular weight of 50,000-600,000 which is a hydrogenation product of an (A)--(B) block copolymer in which (A) means an alkenyl aromatic compound polymer block and (B) means a conjugated diene homopolymer block wherein the vinyl content of the conjugated diene portion is more than 60%, or an alkenyl aromatic compound-conjugated diene random copolymer block wherein the vinyl content of the conjugated diene portion is 15% or more, an (A)--(B)--(C) block copolymer in which (A) and (B) are as defined above and (C) means an alkenyl aromatic compound-conjugated diene copolymer tapered block wherein the proportion of the alkenyl aromatic compound increases gradually, or an (A)--(B)--(A) block copolymer in which (A) and (B) are as defined above, in which block copolymer(1) the weight proportion of theh alkenyl aromatic compound/the conjugated diene is 5/95 to 60/40, and(2) the content of the bound alkenyl aromatic compound in at least oType: GrantFiled: May 18, 1990Date of Patent: March 2, 1993Assignee: Japan Synthetic Rubber Co., Ltd.Inventors: Tooru Shibata, Toshio Teramoto, Yoshiharu Hashiguchi, Kunio Goshima
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Patent number: 5164441Abstract: Acrylic copolymer PSA compositions having enhanced peel strength without substantially decreasing shear properties have been formulated by homogeneously incorporating the tackifying resin into the polymer matrix. The tackifying resin is dissolved into a solution of alkyl (meth) acrylate and (meth) acrylic acid monomers prior to polymerization. To enhance the molecular weight of the resultant PSA, the monomer/tackifier solution is emulsion polymerized in the absence of chain transfer agents, such as antioxidant additives typically found in commercially available tackifiers, and allylic hydrogen present in many unsuitable tackifiers.Type: GrantFiled: December 20, 1990Date of Patent: November 17, 1992Assignee: Exxon Chemical Patents Inc.Inventor: Henry W. Yang
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Patent number: 5124176Abstract: A powder coating composition comprises a component (A) containing carboxylic acid or anhydride functionality and a component (B) containing hydroxy functionality. The components (A) and (B) are both solids at temperatures up to 50.degree. C. and at least one of them is a synthetic resin having a glass transition temperature in the range 0.degree. to 120.degree. C. The carboxylic acid or anhydride-functional component (A) is a compound or polymer containing at least two cyclic carboxylic anhydride groups per molecule or is a compound containing a moiety of the formula: ##STR1## where X is a hydrogen atom or an alkyl group, or a cyclic anhydride thereof. The hydroxy-functional component (B) contains at least two hydroxy groups per molecule and contains at least one amine group in its molecule to catalyze the reaction of the carboxylic acid or anhydride groups of component (A) with the hydroxy groups of component (B).Type: GrantFiled: May 3, 1989Date of Patent: June 23, 1992Assignee: International Paint public limited companyInventor: Alastair R. Marrion
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Patent number: 5098952Abstract: A polyol blend, comprising a low-Tg high-hydroxyl number acrylic copolymer and a high-Tg low-hydroxyl number acrylic copolymer, is disclosed. The low-Tg and high-Tg acrylic copolymers each comprise a hydroxyalkyl acrylate or methacrylate, and a non-hydroxy moiety-containing alkyl methacrylate. The low-Tg copolymer has a hydroxyl number of about 112 to about 187, a number-average molecular weight of about 1500 to about 6000, a polydispersity value of no greater than about 5, and a Tg of about -10.degree. to about 20.degree. C. The high-Tg copolymer has a hydroxyl number of about 35 to about 112, a number-average molecular weight of about 2000 to about 8000, a polydispersity value of no greater than about 5, and a Tg of about 25.degree. to about 100.degree. C. Also disclosed are coating compositions comprising the polyol blend.Type: GrantFiled: November 14, 1990Date of Patent: March 24, 1992Assignee: S. C. Johnson & Son, Inc.Inventors: John E. Blasko, Robert E. Karabetsos, Douglas B. Rahrig
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Patent number: 5098956Abstract: A polyol blend, comprising a low-Tg high-hydroxyl number acrylic copolymer and a high-Tg low-hydroxyl number acrylic copolymer, is disclosed. The low-Tg and high-Tg acrylic copolymers each comprise a hydroxyalkyl acrylate or methacrylate, and a non-hydroxy moiety-containing alkyl methacrylate. The low-Tg copolymer has a hydroxyl number of about 112 to about 187, a number-average molecular weight of about 1500 to about 6000, a polydispersity value of no greater than about 5, and a Tg of about -10.degree. to about 20.degree. C. The high-Tg copolymer has a hydroxyl number of about 35 to about 112, a number-average molecular weight of about 2000 to about 8000, a polydispersity value of no greater than about 5, and a Tg of about 25.degree. to about 100.degree. C. Also disclosed are coating compositions comprising the polyol blend.Type: GrantFiled: November 14, 1990Date of Patent: March 24, 1992Assignee: S.C. Johnson & Son, Inc.Inventors: John E. Blasko, Robert E. Karabetsos, Douglas B. Rahrig
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Patent number: 5095065Abstract: Acrylic copolymer PSA compositions having enhanced peel strength without substantially decreasing sheer properties have been formulated by homogeneously incorporating the tackifying resin into the polymer matrix. The tackifying resin is dissolved into a solution of alkyl (meth) acrylate and (meth) acrylic acid monomers prior to polymerization.Type: GrantFiled: May 21, 1990Date of Patent: March 10, 1992Assignee: Exxon Chemical Patents Inc.Inventor: Henry W. Yang
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Patent number: 5093426Abstract: A hydrogenated copolymer rubber which is a hydrogenation product of a random copolymer rubber consisting of:(A) 30-70 mole % of a unit derived from at least one monomer selected from the group consisting of alkyl acrylates and alkoxy-substituted alkyl acrylates,(B) 20-70 mole % of a unit derived from at least one conjugated diene, and(C) 0-10 mole % of a unit derived from at least one other ethylenically unsaturated compound copolymerizable with the components (A) and (B) [(A)+(B)+(C)=100 mole %] wherein at least 90% of the double bonds of the conjugated diene unit is hydrogenated; a crosslinkable rubber composition comprising said hydrogenated copolymer rubber and a crosslinking agent; and a thermoplastic polymer comprising said hydrogenated copolymer rubber and a thermoplastic resin. These rubbers and compositions are superior in low-temperature resistance, heat resistance, ozone resistance, mechanical strengths, compression set, impact resilience and oil resistance.Type: GrantFiled: October 19, 1989Date of Patent: March 3, 1992Assignee: Japan Synthetic Rubber Co., Ltd.Inventors: Nobuyuki Sakabe, Toshio Ohhara, Toshio Miyabayashi, Hiroshi Ise
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Patent number: 5008338Abstract: A process is disclosed for preparing hydroxyethers of epoxidized polybutenes wherein the epoxide groups of said epoxidized polybutenes are about 70% trisubstituted and about 20% tetrasubstituted. Hydroxyl compounds are reacted with epoxidized polybutenes to obtain compounds of increased flexibility, water resistance, lubricity, and adhesion as compared with said hydroxyl compounds.Type: GrantFiled: January 31, 1989Date of Patent: April 16, 1991Assignee: Amoco CorporationInventors: Wayne T. Riddick, Vincent F. Smith, Jr.
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Patent number: 4999406Abstract: Thermoplastic polymers exhibiting improved physical properties and a method for preparing same compositions comprises reacting a functionalized base polymer composition having pendant cyclic anhdyride groups with a coreactive second moiety. Said functionalized base polymer comprises the reaction product of:I. a hydroxyl containing base polymer comprising the reaction product of:(a) a vinyl halide monomer; and(b) at least one other ethylenically unsaturated monomer having at least one pendant hydroxyl functional group; andII. a cyclic polyanhydride functionalizing agent.Type: GrantFiled: September 1, 1989Date of Patent: March 12, 1991Assignee: The B. F. Goodrich CompanyInventor: Zaev Sharaby
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Patent number: 4988769Abstract: Thermoplastic polymers exhibiting improved physical properties and a method for preparing same are described. The method of preparing these polymer compositions comprises reacting a functionalized base polymer composition having pendant cyclic anhydride groups with a coreactive second moiety. Said functionalized base polymer comprises the reaction product of:I. a hydroxyl containing base polymer comprising the reaction product of:(a) a vinyl halide monomer; and(b) at least one other ethylenically unsaturated monomer having at least one pendant hydroxyl functional group; andII. a cyclic polyanhydride functionalizing agent.Type: GrantFiled: September 1, 1989Date of Patent: January 29, 1991Assignee: The B. F. Goodrich CompanyInventor: Zaev Sharaby
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Patent number: 4980423Abstract: Thermoplastic polymers exhibiting improved physical properties and a method for preparing same are described. The method of preparing these polymer compositions comprises reacting a functionalized base polymer composition having pendant cyclic anhydride groups with a coreactive second moiety. Said functionalized base polymer comprises the reaction product of:I. a hydroxyl containing base polymer comprising the reaction product of:(a) a vinyl halide monomer; and(b) at least one other ethylenically unsaturated monomer having at least one pendant hydroxyl functional group; andII. a cyclic polyanhydride functionalizing agent.Type: GrantFiled: September 1, 1989Date of Patent: December 25, 1990Assignee: The B. F. Goodrich CompanyInventor: Zaev Sharaby
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Patent number: 4972022Abstract: A rubber composition having excellent cut resistance and chipping resistance comprises 1-30 parts by weight of a particular resin obtained by reacting a particular hydroxyl group-containing cyclopentadiene resin with a compound selected from polyisocyanate and/or polybasic acid or its anhydride or ester at a particular equivalent ratio, based on 100 parts by weight of rubber.Type: GrantFiled: July 22, 1988Date of Patent: November 20, 1990Assignees: Bridgestone Corporation, Nippon Oil Company LimitedInventors: Hitoshi Kondo, Makoto Sasaki, Yukio Kobayashi
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Patent number: 4946744Abstract: A substrate coated with a multi-layer decorative and/or protective coating which comprises:(a) a basecoat comprising a pigmented film-forming polymer; and(b) a transparent clearcoat comprising a film-forming polymer applied to the surface of the basecoat composition;the improvement which comprises utilizing as the clearcoat a multicomponent curable composition which is reactive upon mixing of the components, wherein the curable composition comprises:(i) an anhydride-functional compound having an average of at least two cyclic carboxylic acid anhydride groups per molecule; and(ii) a hydroxy-functional compound havng an average of at least two hydroxyl groups per molecule;wherein at least one of the compounds (i) or (ii) comprises a film forming polymer.Type: GrantFiled: November 16, 1987Date of Patent: August 7, 1990Assignee: The Sherwin-Williams CompanyInventors: Mohamad D. Shalati, James A. Marquart, John R. Babjak, Rodney M. Harris
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Patent number: 4885332Abstract: A coating composition comprising a substantially water-free dispersion of colloidal silica, a polyacryloyl monomer, and a free radical initiator.Type: GrantFiled: April 11, 1988Date of Patent: December 5, 1989Assignee: Minnesota Mining and Manufacturing CompanyInventor: Zayn Bilkadi
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Patent number: 4882388Abstract: The present invention provides a rubber composition having a good balance among low temperature resistance, oil resistance, heat aging resistance, and mechanical strength characteristics. This rubber composition comprises a rubber component composed of an ethylenic copolymer rubber and an acrylic rubber, wherein the ethylenic copolymer rubber is a copolymer comprising (a) 50 to 85% by mole of ethylene, (b) 50 to 15% by mole of an acrylate and/or a methacrylate, and (c) 0.05 to 8% by mole, based on the total of said components (a) and (b), of a cross-linked point forming monomer; and the acrylic rubber contains at least 60% by mole of at least one monomer selected from among at least an alkyl acrylate, an alkyl methacrylate and an alkoxyalkyl acrylate.Type: GrantFiled: October 5, 1988Date of Patent: November 21, 1989Assignee: Sumitomo Chemical Company, LimitedInventors: Takashi Nakagawa, Sigelu Yagisita, Masahiro Fukuyama
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Patent number: 4859727Abstract: Disclosed is an antistatic thermoplastic resin composition which comprises a thermoplastic resin and a minor amount of an antistatic property-imparting material which is a polymer comprising 20 to 100 weight % of units of a monomer having a quaternary ammonium base represented by the formula (I): ##STR1## wherein R.sub.1 represents hydrogen or methyl, R.sub.2 through R.sub.4 represent hydrogen or (C1-9) alkyl, which may have a substituent, n is a number of 1 to 10, and X.sup.- represents a monovalent acid group or a corresponding equivalent of an acid, and up to 80 weight % of units of a copolymerizable vinyl or vinylidene monomer.Type: GrantFiled: August 20, 1987Date of Patent: August 22, 1989Assignee: Mitsubishi Rayon Company Ltd.Inventors: Isao Sasaki, Naoki Yamamoto, Akira Yanagase, Hiroki Hatakeyama
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Patent number: 4857576Abstract: A method for rendering a flammable polymer material flame-resistant, which comprises incorporating to the flammable polymer material a powder of a cross-linked aromatic polymer brominated to contain from 30 to 70% by weight of bromine.Type: GrantFiled: March 21, 1986Date of Patent: August 15, 1989Assignees: Mitsubishi Kasei Corporation, MANAC IncorporatedInventors: Hiromi Kochi, Kenji Fukunaga, Takaharu Itagaki, Tsuyoshi Ito
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Patent number: 4855363Abstract: A crosslinkable polymer composition comprising:(I) 1% to 99% by weight of at least one olefin copolymer selected from the group consisting of:(A) copolymers composed of (i) .alpha.-olefins, (ii) unsaturated dicarboxylic acid anhydrides, and (iii) at least one compound selected from the group consisting of unsaturated carboxylic acid esters, and vinyl esters;(B) copolymers at least composed of olefins and unsaturated monocarboxylic acids;(C) copolymers obtained by saponifying and neutralizing olefin copolymers at least composed of olefins and unsaturated carboxylic esters; and(D) copolymers at least composed of olefins and unsaturated dicarboxylic acids or the half esters thereof; and(II) 99% to 1% by weight of at least one olefin copolymer selected from the group consisting of:(A) copolymers at least composed of olefins and glycidyl alkyl (meth) acrylates; and(B) copolymers composed of (i) at least one .alpha.Type: GrantFiled: September 15, 1987Date of Patent: August 8, 1989Assignee: Showa Denko Kabushiki KaishaInventor: Yoshihiro Moteki
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Patent number: 4798746Abstract: Disclosed is a method of coating comprising the steps of: (I) coating a substrate with one or more applications of a pigmented basecoating composition comprising a thermoplastic, non-crosslinked, film-forming polymer having at least two functional groups per molecule which functional groups are co-reactive with acid anhydride moieties, to which basecoating composition has been added within 24 hours prior to coating the substrate, a carboxylic acid anhydride component having at least two cyclic anhydride groups in an amount so as to provide a ratio of equivalents of anhydride groups to equivalents of the co-reactive functional groups of at least 0.10:1.00 to form a basecoat; and (II) coating the basecoat with one or more applications of a transparent, crosslinking, topcoating composition comprising a crosslinkable, film-forming material and a crosslinking agent for the crosslinkable, film-forming material to form a transparent topcoat.Type: GrantFiled: August 24, 1987Date of Patent: January 17, 1989Assignee: PPG Industries, Inc.Inventors: James A. Claar, Stephen J. Thomas, Betty J. Kindle
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Patent number: 4798745Abstract: Disclosed is a non-yellowing coating composition comprising: a hydroxy component having at least two free hydroxyl groups per molecule, and an anhydride component having at least two carboxylic acid anhydride groups per molecule. The anhydride component is derived from a mixture of monomers comprising greater than or equal to 11 percent by weight of an ethylenically unsaturated carboxylic acid anhydride, the balance of the mixture comprised of at least one vinyl comonomer. The molar ratio of the vinyl comonomer to the carboxylic acid anhydride in the mixture should be at least 1.0:1.0 and the ratio should be sufficient to provide a color standard number of less than 150. Typically, the coating composition is in the form of a two-package composition.Type: GrantFiled: August 24, 1987Date of Patent: January 17, 1989Assignee: PPG Industries, Inc.Inventors: Jonathan T. Martz, James B. O'Dwyer, Stephen J. Thomas, James A. Claar