Polymer Derived From Ethylenic Reactants Only Derived From Heterocyclic Reactant Patents (Class 525/117)
-
Patent number: 7041736Abstract: An underfill material is presented that may be used between an electrical component and a substrate. The underfill material may be a cured epoxy resin composition comprising a liquid or semisolid epoxy resin and a polyfunctional anhydride polymer and/or oligomer curing agent. The use of anhydride polymers and/or oligomers decrease the volatilization of the composition, thereby reducing the porosity of the underfill material. By changing substituents of the anhydride polymer and/or oligomer, the underfill material may be designed to modify viscosity, decrease moisture adsorption, volatilization and modulus, improve mechanical properties, and enhance adhesion.Type: GrantFiled: July 8, 2003Date of Patent: May 9, 2006Assignee: Intel CorporationInventors: Saikumar Jayaraman, Rahul Manepalli
-
Patent number: 7019075Abstract: A two-part acrylic structural adhesive comprises a first package containing from about 10 to about 90 percent by weight of at least one ethylenic unsaturated methacrylic ester selected from the group consisting of 1) an alkyl mono-, di- or tetra-substituted cyclohexyl methacrylate, wherein the substitutions occur in either the 3, 4, and/or 5 ring positions, and 2) a linear or branched C4–C10 alkyl methacrylate; from about 10 to about 80 percent by weight of a toughener, and an adhesion promoter; and a second package containing a bonding activator, and, optionally, an epoxy resin.Type: GrantFiled: September 11, 2003Date of Patent: March 28, 2006Assignee: Lord CorporationInventors: Robin F. Righettini, Jeffrey A. Hatcher
-
Patent number: 6943219Abstract: The present invention provides a vinyl polymer with an epoxy group terminally introduced therein and an epoxy resin composition comprising (A) an epoxy resin and (B) a vinyl polymer which has a main chain produced by living radical polymerization and has a reactive functional group at a main chain terminus. A flexible epoxy resin composition can be obtained using these compounds. The invention further provides an epoxy resin composition having an epoxy group at a main chain terminus thereof.Type: GrantFiled: February 24, 2003Date of Patent: September 13, 2005Assignee: Kaneka CorporationInventors: Kenichi Kitano, Yoshiki Nakagawa, Masayuki Fujita
-
Patent number: 6894117Abstract: A substantially non-gelled polymeric composition is disclosed and comprises the reaction product of an A polymer which is an addition polymer having 3.5 or more reactive functional groups per polymer chain and a B polymer having about 2 to about 3 functional groups per polymer chain that are co-reactive with the reactive functional groups of the A polymer. Also disclosed is a process for preparing such polymeric compositions, powder coatings and 100% solids ink resins prepared with such polymeric compositions, and a method for deglossing a powder coating using such polymeric compositions.Type: GrantFiled: November 19, 2003Date of Patent: May 17, 2005Assignee: Johnson Polymer, Inc.Inventors: Jeffrey L. Anderson, Alan J. Pekarik, Edward Tokas
-
Patent number: 6822047Abstract: An adhesive for use on metal substrates, and particularly on copper substrates, comprises (a) carboxyl benzotriazole, (b) an epoxy resin having a reactive double bond, (c) a radical curing resin, and (d) a radical initiator. The combination of elements (a) and (b) in a radical curing resin system composed of the elements (c) and (d) provides improved adhesion strength to copper metal compared to compositions containing (c) and (d) without (a) and (b).Type: GrantFiled: January 2, 2003Date of Patent: November 23, 2004Assignee: National Starch and Chemical Investment Holding CorporationInventor: Tadashi Takano
-
Patent number: 6696522Abstract: A substantially non-gelled polymeric composition is disclosed and comprises the reaction product of an A polymer which is an addition polymer having 3.5 or more reactive functional groups per polymer chain and a B polymer having about 2 to about 3 functional groups per polymer chain that are co-reactive with the reactive functional groups of the A polymer. Also disclosed is a process for preparing such polymeric compositions, powder coatings and 100% solids ink resins prepared with such polymeric compositions, and a method for deglossing a powder coating using such polymeric compositions.Type: GrantFiled: August 16, 2001Date of Patent: February 24, 2004Assignee: Johnson Polymer, Inc.Inventors: Jeffrey L. Anderson, Alan J. Pekarik, Edward Tokas
-
Patent number: 6660805Abstract: Epoxy-modified, two-part acrylic structural adhesives are disclosed. These adhesives are not inhibited by oxygen. Representative embodiments include 2-part acrylic structural adhesives comprising, in a first package from about 10 to about 90 percent by weight of at least one methacrylate selected from C3-C10 alkyl monosubstituted-, C1-C6 alkyl disubstituted-, C1-C4 alkyl tri-substituted, and F1-C4 alkyl tetra-substituted cyclohexyl methacrylate. The ring substituents are prefereably in the 3, 4, and/or 5 ring position, and linear or branched C4-C10 branched alkyl methacrylates; from about 10 to about 80 percent by weight of a toughener, and an adhesion promotor; and in a second package, a bonding activator, and optional epoxy resin.Type: GrantFiled: May 16, 2002Date of Patent: December 9, 2003Assignee: Lord CorporationInventors: Robin F. Righettini, Jeffrey A. Hatcher
-
Patent number: 6649700Abstract: A thermosetting powder coating composition prepared by a wet process, which contains a mixture comprising (a) an epoxy-containing acrylic resin, (b) a polycarboxylic acid compound curing agent, (c) fine crosslinked resin particles and, optionally, (d) a resin that exists in the liquid form at room temperature.Type: GrantFiled: September 21, 2001Date of Patent: November 18, 2003Assignee: Nippon Paint Co., Ltd.Inventors: Masami Yabuta, Yutaka Harada, Atsushi Yamada, Yasuhiko Nakae, Kazuhiko Nishimura, Haruhiko Sato
-
Patent number: 6613839Abstract: An epoxy resin composition comprises a) a polyepoxide, b) a cure inhibitor of boric acid, a Lewis acid derivative of boron, an alkyl borane, a mineral acid having a nucleophilicity value “n” of greater than zero and less than 2.5, or an organic acid having a pKa value of 1 or more, a catalyst which can be complexed with the cure inhibitor, and c) more than 30 parts by weight per 100 parts by weight of polyepoxide of a cross-linker such as a polycarboxylic acid or anhydride including a copolymer of an ethylenically unsaturated anhydride and a vinyl compound, or a hydroxy-functional compound such as a copolymer of styrene and hydroxystyrene.Type: GrantFiled: January 20, 1998Date of Patent: September 2, 2003Assignee: The Dow Chemical CompanyInventors: Joseph Gan, John P. Everett
-
Patent number: 6602604Abstract: The present invention is to provide a coating composition capable of forming a protective film excellent in adhesion properties. Such a coating composition comprises a specific polymer containing carboxyl group, a specific multifunctional epoxide-containing compound having two or more epoxy groups, an organic solvent, and an amino-containing silane coupling agent represented by the following general formula (I): H2N—R1—Si—(OR2)3 (I) wherein, R1 is an unsubstituted alkylene group, and R2's are independently an unsubstituted alkyl group.Type: GrantFiled: August 27, 2001Date of Patent: August 5, 2003Assignee: Clariant Finance (BVI) LimitedInventors: Minoru Kurisaki, Takamasa Harada, Katsuyuki Sakamoto, Junichi Fukuzawa
-
Patent number: 6579936Abstract: A resin composition applicable to semiconductor or electric devices comprises (A) a polyarylenesulfide resin, (B) a bisphenol epoxy resin, (C) an oxazoline group-containing amorphous polymer, and (D) an impact resistance-improving resin which is either (d1) an acid or epoxy groups-containing vinyl polymer, or (d2) an acid or epoxy groups-containing gum polymer.Type: GrantFiled: July 28, 1999Date of Patent: June 17, 2003Assignee: Dainippon Ink and Chemicals, Inc.Inventors: Kiyotaka Kawashima, Tsuneyuki Adachi
-
Patent number: 6509414Abstract: A composition useful as an impregnant for the making of laminates for printed wiring boards comprises a FR4 epoxy resin which is a bisphenol A epoxy resin advanced with tetrabromobisphenol A, a crosslinking agent of a strene-maleic anhydride copolymer and a co-crosslinking agent is an optionally brominated bisphenol A and/or an optionally brominated bisphenol A diglycidyl ether.Type: GrantFiled: June 14, 1999Date of Patent: January 21, 2003Assignee: Isola Laminate Systems CorporationInventors: Franz Tikart, Karl-Heinz Leis
-
Patent number: 6509417Abstract: A multi-component coating composition having a hard, glossy, and tack-free finish is described. The coating composition comprises a fatty acid modified glycidyl-containing component and a hydroxy-functional polymer. The coating composition can be used to originally finish or to refinish such articles as farm, industrial, and construction equipment, automobiles, and trucks, and to paint structures such as bridges, buildings, appliances, metal furniture, and the like.Type: GrantFiled: October 31, 2000Date of Patent: January 21, 2003Assignee: Lilly Industries, Inc.Inventors: Wylie H. Wetzel, William G. O'Dell
-
Patent number: 6492462Abstract: The rheological properties of a crosslinkable resin system are modified by the presence of a side chain crystalline (SCC) polymer (or a similar crystalline polymer which melts over a narrow temperature range). The polymer dissolves in the curable system at temperatures above the melting point of the crystalline polymer (Tp), but when the system is then cooled to a temperature below Tp, at least partially forms a separate phase in the curable system. Below Tp, this separate phase substantially increases the viscosity of the curable system (i.e. makes it thicker than the same system without the crystalline polymer). This is particularly valuable for sheet molding composites (SMCs) in which the increase in viscosity makes the composites less tacky, and for dry film resists (DFRs). Above Tp, the curable system containing the dissolved crystalline polymer has a viscosity which is substantially less than its viscosity below Tp.Type: GrantFiled: December 19, 2000Date of Patent: December 10, 2002Assignee: Landec CorporationInventors: Steven P. Bitler, David D. Taft, Ray F. Stewart
-
Patent number: 6489396Abstract: The present invention provides a novel (meth)acrylate ester-based resin composition which, for example, exhibits various good properties such as weather resistance, heat resistance, water resistance, acid resistance, alkali resistance, warm water resistance, impact resistance, processability, flexibility, hardness, elongation, transparency, luster, fleshy property, mirroring property, pigment dispersibility, and driability when being used, for example, as crosslinking type paints, adhesives, pressure sensitive adhesives, and fiber-processing materials, and has so low a resin viscosity as to be utilizable as a resin for coping with environmental pollution of such as low-VOC paints.Type: GrantFiled: August 27, 2001Date of Patent: December 3, 2002Assignee: Nippon Shokubai Co., Ltd.Inventors: Kazuhiko Nakamura, Yoshiyuki Yokota, Kunio Takahashi, Masaya Yoshida
-
Patent number: 6482530Abstract: An adhesive resin composition comprising: (A) At least one component selected from the group consisting of (i) polyolefins having a melt flow rate of 0.1 to 30 g/10 min and (ii) olefinic polymers having at least one functional group capable of reacting with an epoxy group; and (B) an epoxy compound having at least two epoxy groups in the molecule and having a number average molecular weight of 3000 or less, wherein the ratio of the component (B) to the total weight of the components (A) and (B) is 0.01 to 5% by weight, and a laminate of (a) a layer composed of the above-mentioned adhesive resin composition and a substrate contacted therewith.Type: GrantFiled: January 11, 2001Date of Patent: November 19, 2002Assignee: Showa Denko K.K.Inventors: Koichi Ito, Hiroshi Kasahara, Satoshi Maruyama, Masahiro Ueno, Naoki Minorikawa
-
Patent number: 6455614Abstract: A zero VOC aqueous coating composition comprising a halogen-free propylene/&agr;-olefin copolymer having an &agr;,&bgr;-unsaturated dicarboxylic acid or anhydride grafted thereon, a neutralizing base, a water-dispersible resin containing at least two epoxy groups and an acid catalyst is applied to a plastic substrate comprising a propylene polymer. The dried coating promotes adhesion of a subsequent coating to the polypropylene-based surface of the article.Type: GrantFiled: September 16, 1998Date of Patent: September 24, 2002Assignee: Rohm and Haas CompanyInventors: Michael L. Jackson, Frank A. Stubbs, Joseph M. Mecozzi, David J. Miklos, Alexander L. Neymark
-
Patent number: 6437056Abstract: Coating composition suitable for multilayer lacquering, containing, in addition to organic solvent, anti-sagging agents, optionally pigments, extenders and additives, a binder/crosslinkin agent system containing A) from 20 to 80 wt. % of carboxyl-functional (meth)acrylic copolymers and/or carboxyl-functional polyesters having an acid number of from 20 to 300, B) from 20 to 80 wt. % of epoxy-functional crosslinking agents, the percentages by weight of A) and B) adding up to 100 wt. %. C) from 0 to 30 wt. % of polymer polyol C), based on the sum of the weights of A) and B), E) from 0 to 20 wt. % of further crosslinking agents, based on the sum of the weights of A, B, and C), F) from 0 to 10 wt. % of monoepoxides, based on the sum of the weights of A) and B), and D) as anti-sagging agents, from 0.1 to 3 wt.Type: GrantFiled: December 11, 2000Date of Patent: August 20, 2002Assignee: E. I. du Pont de Nmeours and CompanyInventors: Ralf Dahm, Carmen Flosbach, Hermann Kerber, Walter Schubert, Astrid Tückmantel
-
Patent number: 6391390Abstract: The present invention provides a curable coating composition that includes a film-forming polymer, a polymeric additive having at least one bound surface protecting group, and a crosslinker that is reactive with the film-forming polymer. The polymeric additive is substantially free of groups reactive with the crosslinker and has comonomer units with aryl groups, alkyl groups having, on average, four or more carbon atoms, or combinations of the aryl and alkyl groups. When the coating composition is cured to form a cured coating layer, the concentration of the polymeric additive in the upper about 50% of the cured coating layer thickness is at least about 10% higher than the concentration of the polymeric additive in the rest of the cured coating layer.Type: GrantFiled: March 22, 2000Date of Patent: May 21, 2002Assignee: BASF CorporationInventors: John E. Boisseau, Donald L. St. Aubin, Walter H Ohrbom
-
Patent number: 6387990Abstract: A curable composition is formulated from an epoxy resin; a flame-retardant additive essentially free of phenolic groups and of epoxy groups; and a thermoplastic resin. The preferred epoxy resin is a mixture of an epoxy resin with less than 2 glycidyl ether groups per molecule and an epoxy resin that has greater than 2 glycidyl ether groups per molecule. The preferred flame-retardant additive is a brominated heterocyclic compound that preferable is triazine. The preferred thermoplastic resin is a poly(phenylene ether). The inventive curable compositions advantageously can be combined with reinforcement in the manufacture of circuit boards having excellent electrical properties, good solvent resistance, and good thermal expansion characteristics.Type: GrantFiled: September 10, 1999Date of Patent: May 14, 2002Assignee: General Electric CompanyInventor: Gary W. Yeager
-
Publication number: 20020052446Abstract: The present invention relates to a composition based on monofluorometal complexes, a process for the production of monofluorometal complexes, in particular a catalyst system comprising metallocene monofluorides and aluminum alkyls, as well as the use of the catalyst system for the polymerization of unsaturated compounds, in particular for the polymerization and copolymerization of olefins and/or dienes.Type: ApplicationFiled: October 23, 2001Publication date: May 2, 2002Inventors: Sigurd Becke, Uwe Rosenthal, Wolfgang Baumann, Perdita Arndt, Anke Spannenberg
-
Patent number: 6372823Abstract: The present invention provides a cationically electrodepositable coating composition comprising: (A) a water-soluble or water-dispersible resin obtained by reacting a hydroxyl group of a bisphenol A type epoxy resin with a cyclic ester compound, (B) a vinyl resin having a solubility parameter value of less than 9.6, (C) polyalkylene glycol having a solubility parameter value of less than 9.6, and (D) a pigment component having an average particle diameter of 0.5 &mgr;m or less.Type: GrantFiled: September 27, 2000Date of Patent: April 16, 2002Assignee: Kansai Paint Co., Ltd.Inventors: Hidenori Furukawa, Takahisa Kasukawa
-
Publication number: 20020032281Abstract: A degradable PEG hydrogel is described that, upon hydrolysis, releases conjugates of substantially non-peptidic polymers and biologically active molecules. For example, PEG and protein conjugates can be released in vivo from the hydrogels for therapeutic application.Type: ApplicationFiled: April 2, 2001Publication date: March 14, 2002Applicant: Debio Recherche Pharmaceutique S.A.Inventor: J. Milton Harris
-
Publication number: 20020026016Abstract: Polyolefins, especially branched polyethylenes, can be made by combining a catalyst that can oligomerize ethylene to one or more alpha-olefins and a polymerization catalyst which can copolymerize ethylene and &agr;-olefins, by first carrying out the process in, for example, a continuous stirred tank reactor or its equivalent, and then in a plug flow reactor or its equivalent. The process minimizes the occurrence of (unreacted) &agr;-olefins in the final polymer product.Type: ApplicationFiled: January 30, 2001Publication date: February 28, 2002Inventor: Joel D. Citron
-
Patent number: 6313221Abstract: A thermosetting powder coating composition prepared by a wet process, which contains a mixture comprising (a) an epoxy-containing acrylic resin, (b) a polycarboxylic acid compound curing agent, (c) fine crosslinked resin particles and/or (d) a resin that exists in the liquid form at room temperature.Type: GrantFiled: May 26, 2000Date of Patent: November 6, 2001Assignee: Nippon Paint Co., Ltd.Inventors: Masami Yabuta, Yutaka Harada, Atsushi Yamada, Yasuhiko Nakae, Kazuhiko Nishimura, Haruhiko Sato
-
Patent number: 6235846Abstract: Coating compositions which comprise: (i) a hydroxy-functional compound containing in the molecule an average of at least two hydroxyl groups; (ii) an anhydride-functional compound containing in the molecule an average of at least two cyclic carboxylic acid anhydride groups; and (iii) an epoxy-functional compound containing in the molecule an average of at least two cycloaliphatic epoxy groups, provide low temperature cure response and excellent durability.Type: GrantFiled: July 9, 1993Date of Patent: May 22, 2001Assignee: The Sherwin-Williams CompanyInventors: Mohamad D. Shalati, James A. Marquart, John R. Babjak, Rodney M. Harris
-
Patent number: 6201066Abstract: An adhesive resin composition for extrusion lamination comprising: (A) At least one component selected from the group consisting of (i) polyolefins having a melt flow rate of 0.1 to 30 g/10 min and (ii) olefinic polymers having at least one functional group capable of reacting with an epoxy group; and (B) an epoxy compound having at least two epoxy groups in the molecule and having a number average molecular weight of 3000 or less, wherein the ratio of the component (B) to the total weight of the components (A) and (B) is 0.01 to 5% by weight, and a laminate of (a) a layer composed of the above-mentioned adhesive resin composition and a substrate contacted therewith.Type: GrantFiled: April 17, 1997Date of Patent: March 13, 2001Assignee: Showa Denko K.K.Inventors: Koichi Ito, Hiroshi Kasahara, Satoshi Maruyama, Masahiro Ueno, Naoki Minorikawa
-
Patent number: 6171700Abstract: A curable composite material composition comprising (A) a polymerizable unsaturated compound, (B) a fiber reinforcing material and/or fiber, and (C) a polymerization initiator comprising an organic boron compound represented by the general formula (1) wherein R1, R2, R3 and R4 each independently represent an alkyl, aryl, allyl, aralkyl, alkenyl, alkynyl, silyl or heterocyclic group, a halogen atom, or a substituted alkyl, substituted aryl, substituted allyl, substituted aralkyl, substituted alkenyl, substituted alkynyl or substituted silyl group, and Z+ represents a cation, and an acidic compound, as well as a curing process for the curable composite material composition which includes irradiating and/or heating the curable composite material composition.Type: GrantFiled: March 7, 1997Date of Patent: January 9, 2001Assignees: Showa Denko Kabushiki Kaisha, Showa Highpolymer., Ltd.Inventors: Shuichi Sugita, Hirotoshi Kamata, Tomio Yamamoto, Kazuo Ohtani, Hidetake Sendai
-
Patent number: 6169150Abstract: Coating compositions comprised of (a) a carboxyl functional adduct which is the reaction product of (i) a compound, polymer or oligomer containing pendant and/or terminal hydroxyl or epoxy functional groups and (ii) tartaric acid, malic acid, adipic acid, succinic acid, or anhydrides of said acids; and an anhydride curing agent are disclosed. The coating compositions have accelerated tack-free times and enhanced adhesion to zinc-coated steel and cold rolled steel without the use of a chrome containing wash primer.Type: GrantFiled: December 2, 1998Date of Patent: January 2, 2001Assignee: PPG Industries Ohio, Inc.Inventors: Shanti Swarup, Joseph M. Carney, Bruce A. Connelly
-
Patent number: 6133380Abstract: An antifouling resinous composition comprising as an active component thereof one or more resins represented by the formulasFormula (1)R.sub.p --COO--M--(--o--M--).sub.m --OHFormula (2)R.sub.p --COO--M--(--O--M--).sub.n --OOC--R.sub.pFormula (3) ##STR1## wherein R.sub.p represents a basal resin, M represents in each occurrence the same or different divalent metallic atom, m represents an integer in the range of 1-10, n represents an integer in the range of 0-10, and k represents an integer in the range of 0-10, and contains a metal carboxylate in the molecular unit.Type: GrantFiled: February 12, 1998Date of Patent: October 17, 2000Assignee: Kansai Paint Co., LtdInventors: Koji Yamada, Nobushige Numa
-
Patent number: 6099685Abstract: An adhesive resin composition comprising:(A) At least one component selected from the group consisting of (i) polyolefins having a melt flow rate of 0.1 to 30 g/10 min and (ii) olefinic polymers having at least one functional group capable of reacting with an epoxy group; and(B) an epoxy compound having at least two epoxy groups in the molecule and having a number average molecular weight of 3000 or less, wherein the ratio of the component (B) to the total weight of the components (A) and (B) is 0.01 to 5% by weight, and a laminate of (a) a layer composed of the above-mentioned adhesive resin composition and a substrate contacted therewith.Type: GrantFiled: March 27, 1997Date of Patent: August 8, 2000Assignee: Showa Denko K.K.Inventors: Koichi Ito, Hiroshi Kasahara, Satoshi Maruyama, Masahiro Ueno, Naoki Minorikawa
-
Patent number: 6084006Abstract: A method for manufacturing a color filter comprises a step for charging an ink comprising a thermosetting resin composition onto an opening of a black matrix provided on a transparent substrate and a step for curing the ink by heat treatment. The thermosetting resin composition comprises either a coloring agent, a multifunctional epoxide having at least two glycidyl groups and a compound crosslinked by the multifunctional epoxide; or a coloring agent, a cellulose-reactive compound and a compound crosslinked by the cellulose-reactive compound.Type: GrantFiled: September 8, 1997Date of Patent: July 4, 2000Assignee: Canon Kabushiki KaishaInventors: Akio Kashiwazaki, Katsuhiro Shirota, Koichiro Nakazawa, Masashi Hirose
-
Patent number: 6084036Abstract: Coating compositions comprising (a) a carboxyl functional adduct which is the reaction product of (i) a compound, polymer or oligomer containing pendant and/or terminal hydroxyl or epoxy functional groups and (ii) citric acid or citric acid anhydride; and (b) an anhydride functional curing agent are disclosed. The coating compositions have accelerated tack-free times and enhanced adhesion to zinc-coated steel substrates without the use of a chrome-containing wash primer.Type: GrantFiled: September 2, 1998Date of Patent: July 4, 2000Assignee: PPG Industries Ohio, Inc.Inventors: Joseph M. Carney, Bruce A. Connelly, James A. Claar
-
Patent number: 6030571Abstract: A method of molding which comprises preparing a molding material by compounding a filler and a curable composition, the filler being in an amount of 0 to 800 weight parts based on 100 weight parts of the curable composition and optionally aging the molding material at room temperature or by heating, followed by casting the molding material into a mold and curing the molding material under atmospheric pressure or higher, and articles molded by such method.Type: GrantFiled: May 22, 1997Date of Patent: February 29, 2000Assignee: NOF CorporationInventors: Yoshinori Nakane, Hiroki Mizutani, Hayato Ishibashi, Masahiro Ishidoya
-
Patent number: 5962586Abstract: Improved toughened epoxy resin systems having glass transition temperatures of 250.degree. C. to 350.degree. C. are prepared by carefully curing a blend of epoxy resin or resins, all of which have an epoxy functionality of at least 2 with the mixture having an epoxy functionality greater than 2, an anhydride hardener mixture comprising a bicycloalkenedicarboxylic acid anhydride, a polybutadiene-maleic anhydride adduct, and optionally, a polybutadiene, a bismaleimide, or benzophenone tetracarboxylic acid dianhydride, preferably using a dialkyl imidazole-2-thione accelerator.Type: GrantFiled: September 27, 1994Date of Patent: October 5, 1999Inventor: John D. Harper
-
Patent number: 5959034Abstract: A curable silicone composition having high compatibility with organic polymers, which comprises (a) 100 parts by weight of a hydroxyl group-containing organopolysiloxane represented by the following formula (I) and (b) 1-50 parts by weight of an isocyanate compound having at least two isocyanate groups per molecule, wherein the number of the hydroxyl groups per molecule in the component (a) plus the number of the isocyanate groups per molecule in the component (b) is at least 5: ##STR1## wherein R.sup.1 is a monovalent saturated hydrocarbon group; R.sup.2 is a phenyl-substituted alkyl group represented by C.sub.6 H.sub.5 --(CH.sub.2).sub.p --CH(R.sup.4)--CH.sub.2 --; R.sup.3 is a hydroxyl-substituted alkyl group represented by --CH.sub.2 --CH.sub.2 --CH.sub.2 --O--(C.sub.2 H.sub.4 O).sub.q --H; two R groups are the same group or different groups selected from the groups represented by R.sup.1, R.sup.2 or R.sup.3 ; R.sup.4 is a hydrogen atom or the same group as R.sub.Type: GrantFiled: April 17, 1998Date of Patent: September 28, 1999Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Masahiko Ogawa, Naoki Omura, Shunji Aoki
-
Patent number: 5945487Abstract: The invention provides a thermosetting powder coating composition comprising (A) a vinyl copolymer having a number average molecular weight of 1,500 to 6,000, a molecular weight distribution of 1.0 to 1.5 as represented by a weight average molecular weight/a number average molecular weight and a glass transition temperature of 40 to 100.degree. C., the copolymer containing at least one species of functional group selected from the class consisting of epoxy group, carboxyl group and hydroxyl group, and (B) a curing agent. The thermosetting powder coating composition of the invention is superior in any of the finished appearance of coating film and the blocking resistance.Type: GrantFiled: January 23, 1997Date of Patent: August 31, 1999Assignee: Kansai Paint Company, Ltd.Inventors: Toshio Ohkoshi, Yugen Kawamoto, Toshio Ogasawara, Motoshi Yabuta, Koji Yamada
-
Patent number: 5837353Abstract: A coating composition based on low molecular weight anhydrides having pendant, non-cyclic anhydride moieties, hydroxy-functional epoxy resin, and active catalyst wherein the coating composition cures at ambient conditions.Type: GrantFiled: January 7, 1997Date of Patent: November 17, 1998Assignee: E. I. du Pont de Nemours and CompanyInventors: Robert J. Barsotti, Lee R. Harper
-
Patent number: 5789493Abstract: The invention relates to a process for preparing a composition contains a polymer and a crosslinking agent which comprises mixing a polymer that is solid at room temperature with a crosslinking agent, the polymer and the crosslinker having complementary reactive groups, at a temperature at which the viscosity of the polymer (measured according to Emila) is less than 5000 dpas, in a means for achieving a homogeneous composition in such a short time that less than 20% of the reactive groups of one of either the polymer or crosslinking agent has reacted, and subsequently cooling and comminuting the composition.The mixing is preferably effected in a static mixer at a temperature higher than 140.degree. C.Type: GrantFiled: August 1, 1997Date of Patent: August 4, 1998Assignee: DSM N.V.Inventors: Josephus M. Van Aaken, Guillaume F. M. Hoedemakers, Johannes S. Van Der Bas, Adrianus J. Van De Werff
-
Patent number: 5739186Abstract: The invention relates to an epoxy resin composition for semiconductor encapsulation comprising at least an epoxy resin, hardener, inorganic filler, and accelerator, wherein said epoxy resin is one which is composed of about 20 to about 90 parts by weight of 4,4'-bisphenol F type epoxy resin and about 10 to about 80 parts by weight of either a polyhydric phenolic type epoxy resin which has slightly polar hydrocarbon groups (Z) lying between the phenyl nuclei, or a biphenol type epoxy resin.Type: GrantFiled: November 28, 1995Date of Patent: April 14, 1998Assignee: Shell Oil CompanyInventors: Atsuhito Hayakawa, Yasuyuki Murata, Yoshinori Nakanishi, Norio Tohriiwa
-
Patent number: 5728779Abstract: A binder composition for thermosetting powder paints comprising (i) a polymer that is capable of reacting with epoxy groups and (ii) a crosslinker that contains epoxy groups, wherein the crosslinker comprises at least one C.sub.5 to C.sub.26 linear or branched aliphatic chain with the proviso that epoxy groups are carried on at least one aliphatic chain. In order to function as a crosslinker the amount of oxirane-oxygen originating from the crosslinker in the binder composition is higher than 0.1 meq/gram. The crosslinker is, for example, an epoxydized oil, a modified epoxydized oil or an epoxydized alkyd resin. A powder paint comprising the binder composition can contain a suitable catalyst and, optionally, an additional curing agent.Type: GrantFiled: June 5, 1995Date of Patent: March 17, 1998Assignee: DSM N.V.Inventors: Adrianus J. van de Werff, Leendert J. Molhoek, Marten Houweling, Robert van den Berg Jeths, Dirk A. W. Stanssens, Robert van der Linde, Tosko A. Misev
-
Patent number: 5709946Abstract: A zero VOC aqueous coating composition comprising a halogen-free propylene/.alpha.-olefin copolymer having an .alpha.,.beta.-unsaturated dicarboxylic acid or anhydride grafted thereon, a base, and a water-dispersible resin containing at least two epoxy groups is applied to a plastic substrate comprising a propylene polymer. The dried coating promotes adhesion of a subsequent coating to the polypropylene-based surface of the article.Type: GrantFiled: February 1, 1995Date of Patent: January 20, 1998Assignee: Bee Chemical CompanyInventors: Michael L. Jackson, Frank A. Stubbs, Joseph M. Mecozzi, David J. Miklos, Alexander L. Neymark
-
Patent number: 5691416Abstract: 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: GrantFiled: November 2, 1995Date of Patent: November 25, 1997Assignee: Nippon Shokubai Co., Ltd.Inventors: Masatoshi Yoshida, Kenji Minami, Ichiro Namura, Masuji Izubayashi
-
Patent number: 5691419Abstract: A coating agent comprises a binding agentcontaining at least one acrylate copolymer (A) with carboxyl groups and/or at least one acrylate copolymer (B) with epoxide groups, the acrylate copolymers (A) and (B) being obtained by solution polymerization using less than 5% by weight based on the total weight of monomers of one or more polysiloxane macromonomers a.sub.1 having a number-average molecular weight of 1000 to 40,000 and on average 0.5 to 2.5 ethylenically unsaturated double bonds per molecule; and one or more epoxy resins.Type: GrantFiled: February 1, 1994Date of Patent: November 25, 1997Assignee: BASF Lacke + Farben, AGInventors: Stephan Engelke, Michael Brunnemann, Olaf Rotter, Andreas Holst
-
Patent number: 5686531Abstract: A coating agent comprises a binding agent containing at least one acrylate copolymer (A) with carboxyl groups and/or at least one acrylate copolymer (B) with epoxide groups, the acrylate copolymers (A) and (B) being obtained by solution polymerization using less than 5% by weight based on the total weight of monomers of one or more polysiloxane macromonomers a.sub.1 having a number-average molecular weight of 1000 to 40,000 and on average 0.5 to 2.5 ethylenically unsaturated double bonds per molecule; one or more addition and/or condensation resins with carboxyl groups; and one or more epoxy resins.Type: GrantFiled: May 24, 1995Date of Patent: November 11, 1997Assignee: BASF Lacke + Farben, AGInventors: Stephan Engelke, Michael Brunnemann, Olaf Rotter, Andreas Holst
-
Patent number: 5618884Abstract: Anhydride-functional polymerizable monomers having the structure: ##STR1## and polymers and reactive compositions prepared from these monomers are disclosed. The reactive compositions are especially useful in primer and clearcoat/basecoat applications.Type: GrantFiled: March 1, 1996Date of Patent: April 8, 1997Assignee: The Sherwin-Williams CompanyInventors: Rubing Cai, Thomas W. Yokoyama
-
Patent number: 5508325Abstract: 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 carbon grafted, carboxyl functional acrylic-epoxy copolymer, and combined with low molecular weight diepoxide, followed by coreaction and crosslinking between the carboxyl copolymer and diepoxide to form stable aqueous dispersed microgel particles.Type: GrantFiled: January 19, 1995Date of Patent: April 16, 1996Assignee: The Glidden CompanyInventors: Gary P. Craun, David J. Telford, Henry J. DeGraaf
-
Patent number: 5504161Abstract: A latent curing agent for an epoxy resin comprising boron trifluoride on a cross-linked polymer support having at least 10% by weight of pendant pyridine groups. The polymer support is preferably about 25% to 40% cross-linked, and preferably in the form of porous, macroreticular beads having average diameters of less than 30 .mu.m. The combination of this latent curing agent admixed with an epoxy resin is also disclosed, as is the process for making and using the same.Type: GrantFiled: May 15, 1991Date of Patent: April 2, 1996Assignee: Reilly Industries, Inc.Inventors: Charles R. Marston, Gerald L. Goe
-
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
-
Patent number: 5455308Abstract: Thermosettable composition suitable for the production of endless objects without the use of continuous carrier material, whereby the composition comprises an epoxy resin or an unsaturated polyester and a high molecular weight thermoplastic polymer which has a weight-average molecular weight of at least 1,000,000 g/mol in an amount to make the composition spinnable, the amount ranging from at least 0.1% where the polymer has a molecular weight of 5,000,000 g/mol or more or less than 2% where the polymer has the weight-average molecular weight of 1,000,000 g/mol, the amount decreasing as the weight-average molecular weight increases.Type: GrantFiled: August 16, 1994Date of Patent: October 3, 1995Assignee: DSM N.V.Inventor: Cornelis W. M. Bastiaansen