Solid Polymer Derived From Polycarboxylic Acid Or Derivative And Polyhydroxy Compound Is Derived From Two Or More Polycarboxylic Acids Or Derivatives Patents (Class 525/448)
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Patent number: 5244985Abstract: Disclosed are an epoxidized polyester which comprises, per molecule, at least three bifunctional groups each having the general formula ##STR1## wherein R.sup.1 and R.sup.2 are the same or different and each is a hydrogen atom or an alkyl group containing 1 to 5 carbon atoms, or R.sup.1 and R.sup.2 taken together represent an endomethylene group, and which has a number average molecular weight of about 1,000 to about 10,000, as well as processes for preparing the epoxidized polyester.Type: GrantFiled: March 25, 1992Date of Patent: September 14, 1993Assignee: New Japan Chemical Co., Ltd.Inventors: Tomio Nobe, Hiroyuki Kanamaru, Harutomo Nomoto, Shoji Tani
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Patent number: 5241019Abstract: Herein disclosed is a binder for dry toners which comprises a copolymer resin obtained by reacting 10 to 50% by weight of a polyester resin which has free carboxyl groups, whose acid value ranges from 10 to 100 and whose number-average molecular weight ranges from 1,000 to 5,000 and 90 to 50% by weight of a mixture of a vinyl compound having a glycidyl group and the an another vinyl compound, wherein the amount of the vinyl compound having a glycidyl group corresponds to the number of the glycidyl groups equal to 0.25 to 1.5 time that of the carboxyl groups present in the polyester resin. The binder for dry toners is used in the electrophotography technique.Type: GrantFiled: July 12, 1991Date of Patent: August 31, 1993Assignee: Mitsui Toatsu Chemicals, Inc.Inventors: Tateo Otsuki, Kazuya Tsukamoto, Nobuhiro Hirayama
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Patent number: 5232778Abstract: Polyester fibers comprising a poly(alkylene) terephthalate matrix containing either random or block copolyesters which are liquid crystalline and which contain: (a) alkoxy-substituted para-phenylene terephthalate groups (i.e., derived from an analogously substituted hydroquinone reagent); and (b) alkylene-terephthalate groups (e.g., where the alkylene moiety contains 2 to 10 carbon atoms).Type: GrantFiled: October 8, 1992Date of Patent: August 3, 1993Assignee: University of Massachusetts at AmherstInventors: Richard J. Farris, Scott L. Joslin, Reiner Giesa
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Patent number: 5221730Abstract: Disclosed are melt-processable wholly aromatic polyesters prepared from terephthalic acid, 2,6-naphthalenedicarboxylic acid, and hydroquinone.Type: GrantFiled: November 16, 1990Date of Patent: June 22, 1993Assignee: Eastman Kodak CompanyInventors: John C. Morris, Winston J. Jackson, Jr., James R. Bradley
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Patent number: 5214102Abstract: A method of producing fluorinated elastomeric articles having reduced coefficients of friction, improved wear life and improved resistance to fluid permeability. A thermoplastic elastomeric article is exposed to gaseous fluorine in a reactor vessel under reaction conditions sufficient to create a fluorinated material on the external portions of the elastomeric article, which fluorinated material extends inwardly into the matrix of the article, without promoting degradation of the tensile properties of the article.Type: GrantFiled: December 5, 1991Date of Patent: May 25, 1993Assignee: William S. ShambanInventors: Ronald E. Zielinski, Mark J. Seabury
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Patent number: 5204418Abstract: A light-weight polyester film which comprises (A) from 50 to 95% by weight of a crystalline polyester resin and (B) from 5 to 50% by weight of a maleimide copolymer, said maleimide copolymer being dispersed in the film in the form of particles having diameters of from 0.1 to 20 .mu.m and fine voids being present in the film, and which has an apparent specific gravity of from 0.3 to 1.1, wherein said maleimide copolymer comprises from 30 to 50 mol % of a maleimide monomer group, from 30 to 70 mol % of an aromatic vinyl monomer group, from 0 to 40 mol % of an unsaturated dicarboxylic anhydride monomer group and from 0 to 40 mol % of other copolymerizable monomer group, and said maleimide copolymer has a glass transition temperature higher by at least 10.degree. C. than the crystalline polyester resin.Type: GrantFiled: January 30, 1992Date of Patent: April 20, 1993Assignee: Unitika Ltd.Inventors: Kenji Yasue, Eiji Y. Yamamoto, Katsuyuki Toma, Minoru Kishida, Yoshiaki Kozuka
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Patent number: 5198480Abstract: The invention relates to novel suppressants for unsaturated polyester styrenated resins resulting in lower emission of volatile compounds in the production of the polyester resins.Type: GrantFiled: November 27, 1991Date of Patent: March 30, 1993Assignee: The Standard Oil CompanyInventors: K. C. Benton, R. Weinert
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Patent number: 5180793Abstract: The invention is a polyester and a method for producing a polyester filament which has a combination of flame resistance and low pilling properties. The method comprises forming a polyester polymer from a mixture of two polymers, the first compound being the reaction product of terephthalic acid or dimethyl terephthalate, ethylene glycol, and an oxysilicon compound and the second compound being the reaction product of terephthalic acid or dimethyl terephthalate, ethylene glycol and a phosphinic acid in the amount between 0.5 and 20 mole percent of the terephthalate acid and monomer. In particular, the invention also comprises the enhanced fiber formed by the process, as well as the fabrics having a pilling of about 3 to less than 5 as measured in accordance with ASTM D-3512-82.Type: GrantFiled: December 31, 1991Date of Patent: January 19, 1993Assignee: Hoechst Celanese CorporationInventors: Richard E. Vigneault, William S. Wagner, Klaus Weisskopf, R. Edward Williamson, A. John Woodward
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Patent number: 5151493Abstract: Radiation-cured film webs are prepared from copolyesters having terminal hydroxyl groups, not more than 90% of the hydroxyl groups having been replaced by acrylate or methacrylate groups. The copolyesters comprise at least two different dicarboxylic acids and have a copolymer chain which is branched due to the presence of more than bifunctional polyester components, and must have a glass transition temperature of -30.degree. to +30.degree. C. and an average molecular weight between 1,000 and 10,000. The film webs are particularly suitable as a backing carrier coated on one or both sides with pressure-sensitive adhesives in the manufacture of labels or as the backing carrier of adhesive tapes.Type: GrantFiled: September 13, 1990Date of Patent: September 29, 1992Assignee: Huls AktiengesellschaftInventors: Hylton H. Smith, Hans F. Huber, Hartmut Muller
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Patent number: 5124413Abstract: A melt-processable, miscible or partially miscible blend of an amorphous, isotropic polyarylate with a poly(ether ketone ketone) that does not possess a sharp or well defined melting endotherm by differential scanning calorimetry when observed on second heating under defined conditions can be extruded into sheets useful in aircraft panels and in other applications that require high burn resistance and good melt processability.Type: GrantFiled: September 13, 1990Date of Patent: June 23, 1992Assignee: E. I. Du Pont de Nemours and CompanyInventor: Robert R. Luise
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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: 5115047Abstract: A copolyester having an intrinsic viscosity, measured in o-chlorophenol at 25.degree. C., of 0.3 to 1.5 dl/g and being derived from dicarboxylic acid units composed of 95 to 60 mole % of isophthalic acid units and 5 to 40 mole % of 2,6-naphthalenedicarboxylic acid units and dihydroxy compound units composed of 95 to 70 mole % of ethylene glycol units and 5 to 30 mole % of 1,3-bis(2-hydroxyethoxy)benzene units; a gas barrier imparting agent composed of the copolyester; a polyester composition composed of (A) a polyethylene terephthlate and (B) the copolyester; and a film, a preform and a container composed of the polyester composition. Also provided are a polyester laminated structure, a stretched laminated structure, a preform and a laminated blow-molded article each composed of (C) a polyalkylene terephthalate layer and (D) a copolyester layer composed of the copolyester or the polyester composition.Type: GrantFiled: May 28, 1991Date of Patent: May 19, 1992Assignee: Mitsui Petrochemical Industries, Ltd.Inventors: Mikio Hashimoto, Norio Kaneshige
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Patent number: 5102980Abstract: Provided are novel polyester compositions containing copper phthalocyanine sulfonamide colorants copolymerized therein. Also provided are amorphous color concentrates, partially-crystalline color concentrates and semi-crystalline color concentrates. These polyester compositions are particularly useful for use as colored packaging materials and for colorants for personal, medical, and home care products where non-extractability of the colorant residue is important.Type: GrantFiled: April 1, 1991Date of Patent: April 7, 1992Assignee: Eastman Kodak CompanyInventors: James J. Krutak, Max A. Weaver, Clarence A. Coates, William W. Parham, Terry A. Oldfield, Wayne P. Pruett, Samuel D. Hilbert
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Patent number: 5100973Abstract: Described are blends of a crystalline poly(aryl ether ketone) and a polyarylate and/or a liquid crystalline polyarylate. These blends exhibit improved mechanical properties and environmental stress rupture resistance.Type: GrantFiled: May 23, 1990Date of Patent: March 31, 1992Assignee: Amoco CorporationInventors: Lloyd M. Robeson, James E. Harris
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Patent number: 5079284Abstract: A polymer such as polyester is modified with reaction with a modifier of a compound having the formula: ##STR1## in which X is halogen, Y.sub.1 and Y.sub.2 are a three- to eight-membered ring, Z is a divalent organic group and n is 1 or more.Type: GrantFiled: February 8, 1990Date of Patent: January 7, 1992Assignee: Polyplastics Co., Ltd.Inventors: Toshio Nakane, Yukihiko Kageyama, Kenji Hijikata
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Patent number: 5070178Abstract: A polyether-ester block copolymer, and filaments formed therefrom, having an enhanced thermal stability of the elastic property thereof and a satisfactory dyeing property, comprises a polymerization product of (A) an acid component comprising as a major ingredient, terephthalic acid, (B) a phosphonium sulfate component comprising a compound of the formula (I): ##STR1## wherein Z.sub.1 =tri- or more valent aromatic or aliphatic group, A.sub.1 =ester-forming group, A.sub.2 =H or ester-forming group, R.sup.1, R.sup.2, R.sup.3, R.sup.4 =alkyl or aryl radical and n=a positive integer, (C) a polymeric glycol component comprising a polyoxyalkylene glycol having an MW of 400 to 6000 and (D) a monomeric glycol component comprising, as a major ingredient, 1,4-butane diol, in which the copolymer component (B) is in an amount of from 0.Type: GrantFiled: September 4, 1990Date of Patent: December 3, 1991Assignee: Teijin LimitedInventor: Hironori Yamada
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Patent number: 5043402Abstract: Polyalkylene arylate resin compositions include a crystalline polyalkylene arylate base resin and a copolyester comprised of a polyalkylene arylate segment which exhibits smectic liquid crystallinity, and a polyalkylene arylate segment which does not exhibit smectic liquid crystallinity. Improved crystallization rates, and thus faster mold cycle times (i.e. increased productivity), ensue from the compositions of this invention.Type: GrantFiled: March 29, 1990Date of Patent: August 27, 1991Assignee: Polyplastics Co., Ltd.Inventors: Junji Watanabe, Tatsuya Saito, Toshio Nakane, Kenji Hijikata
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Patent number: 5043400Abstract: A method for producing articles of composite resin, wherein a liquid crystal polymer material in powder form is mixed with a second, melt-processable polymer material; the resulting mixture is kneaded at a temperature at which the second polymer material will melt but at which no deformation of the liquid crystal polymer will be caused so as to prepare a blend comprising the liquid crystal polymer powder uniformly dispersed in the matrix of the second polymer; and the blend is then subjected to a molding or shaping process at a temperature within the range at which the liquid crystal polymer is capable of forming liquid crystals.Type: GrantFiled: January 23, 1991Date of Patent: August 27, 1991Assignee: Tosoh CorporationInventors: Akeharu Tsuruta, Hisato Kawaguchi, Tomohiro Ishikawa, Yozo Kondo
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Patent number: 5039760Abstract: A polyester resin composition exhibiting improved heat-resistant flexibility including (A) a polyester copolymer which is the polycondensation reaction product of (a) an aromatic dicarboxylic acid or an ester-forming derivative thereof, (b) an aliphatic glycol, and (c) between 0.001 to 1.0 mole %, based upon component (a), of a branch-forming compound, and (B) between 0.1 to 10% by weight (based on the total weight of the composition) of a bisoxazoline compound.Type: GrantFiled: February 2, 1990Date of Patent: August 13, 1991Assignee: Polyplastics Co., Ltd.Inventors: Toshio Nakane, Michiro Naka, Yukihiko Kageyama, Hiroaki Konuma, Kenji Hijikata
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Patent number: 5024232Abstract: Novel radiopaqaue materials comprise heavy metal salts, such as bismuth and uraniuim salts complexed with a polymer. The metallic complexes which are permanent, nonleachable and have radiopacities at least equivalent to that of aluminum do not adversely affect the mechanical and physical properties of compositions. They are useful as medical and dental resins, in fabricating medical and dental appliances, prosthetic devices, radiation shielding devices and radiopaque polyester fabrics for clothing.Type: GrantFiled: July 25, 1989Date of Patent: June 18, 1991Assignee: The Research Foundation of State University of NYInventors: Johannes Smid, Israel Cabasso, Alan Obligin, H. Ralph Rawls
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Patent number: 4999128Abstract: A soil release promoting copolymer of poly(ethylene terephthalate/ethylene isophthalate) and poly(oxyethylene terephthalate/oxyethylene isophthalate) having a weight average molecular weight in the range of 6,000 to 40,000 is prepared by reacting an ethylene terephthalate/ethylene isophthalate copolymer with polyethylene glycol in the presence of a transesterification catalyst. The soil release promoting copolymer provides improved soil release properties for oil and greasy stains on polyester fabrics at high and low wash temperatures, is stable even at high alkalinity levels, and can be used at lower loadings than conventional soil release polymers without loss of efficacy.Type: GrantFiled: June 1, 1989Date of Patent: March 12, 1991Assignee: Colgate-Palmolive Co.Inventor: Gerard G. Sonenstein
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Patent number: 4997907Abstract: The invention relates to curable powder mixtures comprising(A) carboxyl-containing polyesters,(B) compounds containing at least two 1,2-epoxide groups, which compounds are reaction products of(B1) compounds containing at least two 1,2-epoxide groups per molecule and having an epoxide equivalent weight of 160 to 600 and(B2) aromatic dicarboxylic acids or mixtures thereof with compounds selected from the group (cyclo)aliphatic dicarboxylic acids, monocarboxylic acids and/or monohydric phenols, and(B3) cyclic anhydrides, if required, and(C) any customary additives, if appropriate.These mixtures are distinguished in particular by an improved resistance to yellowing and/or increased reactivity.Type: GrantFiled: March 9, 1990Date of Patent: March 5, 1991Assignee: Hoechst AktiengesellschaftInventors: Manfred Marten, Claus Godau, Gerd Walz
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Patent number: 4987167Abstract: A halogen-containing polyester resin composition comprises a flame retardant aromatic polyester copolymer having a halogen content of 0.5-30% by weight which is produced by condensation polymerization reaction of:(A) principally an aromatic dicarboxylic acid or an ester-forming derivative thereof,(B) principally an aliphatic glycol or an ester-forming derivative thereof, and(C) an ester-forming compound containing a halogen,and, in mixture therewith, 0.1-10% by weight of a bisoxazoline compound relative to the total weight of the composition.Type: GrantFiled: February 3, 1988Date of Patent: January 22, 1991Assignee: Polyplastics Co., Ltd.Inventors: Toshio Nakane, Kenji Hijikata, Makoto Iiyama, Yukihiko Kageyama, Michirou Naka
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Patent number: 4983716Abstract: This invention relates to high solids alkyds, non-aqueous dispersions, and coating compositions containing those alkyds and non-aqueous dispersions, having non-volatile materials contents greater than about 75% NVM, with very low volatile organic contents of less than 305 g/l, which exhibit excellent stability, viscosity and tack-free and dry times when formulated as air dry coating compositions.Type: GrantFiled: January 16, 1990Date of Patent: January 8, 1991Assignee: The Sherwin-Williams CompanyInventors: Madhukar Rao, Richard F. Tomko, Daniel R. Sayre
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Patent number: 4977191Abstract: A water-soluble or water-dispersible polyester resin composition, suitable for textile sizing applications, comprises a reaction product of 20-50% by weight of waste terephthalate polymer, 10-40% by weight of at least one glycol and 5-25% by weight of at least one oxyalkylated polyol. Preferred compositions also comprise 20-50% by weight of isophthalic acid. A further water-soluble or water-dispersible resin comprises a reaction product of 20-50% by weight of waste terephthalate polymer, 10-50% by weight of at least one glycol and 20-50% by weight of isophthalic acid.Type: GrantFiled: June 27, 1989Date of Patent: December 11, 1990Assignee: The Seydel Companies, Inc.Inventor: Robert K. Salsman
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Patent number: 4973646Abstract: Disclosed are thermosetting, powder coating compositions comprised of semi-crystalline polyesters and .epsilon.-caprolactam-blocked bis(1-cyanato-1-methylethyl) benzene compounds which are readily curable at relatively-mild temperatures and using cure times commonly used to cure (cross-link) powder coatings. When using equivalent curing conditions, the disclosed coating compositions exhibit a higher degree of cross-linking than do combinations of amorphous polyesters and the .epsilon.-caprolactam-blocked bis(1-cyanato-1-methylethyl)-benzene compounds.Type: GrantFiled: April 9, 1990Date of Patent: November 27, 1990Assignee: Eastman Kodak CompanyInventors: Jonathan S. Witzeman, Yeong-Ho Chang
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Patent number: 4963652Abstract: An aqueous printing ink or its semi-aqueous or non-aqueous concentrate exemplified as comprising a substantially homogeneous system of the components:(1) from about 4 to about 80 weight % of one or more polyester materials having an acid component of from about 75 to about 84 mole % isophthalic acid and conversely from about 25 to about 16 mole % 5-sodiosulfoisophthalic acid, and having a glycol component of from about 45 to about 60 mole % diethylene glycol and conversely from about 55 to about 40 mole % 1,4-cyclohexanedimethanol or ethylene glycol or mixtures thereof;(2) from about 0 to about 60 weight % of pigment material;(3) from substantially none to about 90 weight % of water; and(4) from about 0.25 to about 5 weight % of a diacyl-glycerophospholipid.Type: GrantFiled: November 27, 1989Date of Patent: October 16, 1990Assignee: Eastman Kodak CompanyInventors: Frank J. Tortorici, Kenneth R. Barton, Lawrence D. Queen
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Patent number: 4923957Abstract: Aromatic polyesters based on diphenols and iso- and/or terephthalic acid are produced by transesterification of esters of the diphenols with the aromatic dicarboxylic acids in the melt by first reacting the aromatic dicarboxylic acids with a stoichiometric excess of the diphenol esters to form oligomers and then condensing the resulting oligomers to the aromatic polyesters with elimination and removal by distillation of diphenol ester.Type: GrantFiled: January 3, 1989Date of Patent: May 8, 1990Inventors: Peter Tacke, Ulrich Grigo, Karsten-Josef Idel
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Patent number: 4892912Abstract: A process for producing aromatic polyester which comprises mixing5 to 70 mol % (as calculated by converting the repeating unit mentioned below into one molecule) of polyester (A) with the repeating unit represented by general formula (I), ##STR1## and 95 to 30 mol % of an acyloxyl aromatic carboxylic acid (B), with 0.1 to 20 mol % based on the total amount of (A) and (B), of a diacyloxy aromatic compound (C) represented by general formula (II), ##STR2## and reacting the resulting mixture. The aromatic polyester is excellent in elasticity and mechanical strength, as well as toughness.Type: GrantFiled: November 8, 1988Date of Patent: January 9, 1990Assignee: Idemitsu Petrochemical Co., Ltd.Inventors: Hideo Hayashi, Hideya Murai, Nobuyuki Inaba
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Patent number: 4891419Abstract: A modified polyester resin composition for coating use comprising a polyester resin modified with 5 to 30% by weight of the total solid of a branched fatty acid having 8 and more carbon atoms and with 5 to 30% by weight of the total solid of a cyclic ester represented by the formula: ##STR1## wherein R represents an alkylene group having 4 to 10 carbon atoms, the resin having a hydroxyl value of 70 to 300. The present resin composition is specifically useful as resinous vehicle in a top coat composition for plastic and other substrates.Type: GrantFiled: November 12, 1987Date of Patent: January 2, 1990Assignee: Nippon Paint Company, Ltd.Inventors: Ryozo Takagawa, Hisaki Tanabe, Koichi Inoue, Hirotoshi Umemoto
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Patent number: 4888381Abstract: A crystalline polyester film or sheet coated with a priming composition consisting essentially of a carboxyl group-containing copolyester, wherein the carboxyl groups are introduced either by treatment of the terminal hydroxyl groups of the copolyester with a dicarboxylic acid anhydride or by pyrolysis of the copolyester. Such primer compositions form continuous wet films and dry coatings and provide surfaces receptive to a variety of surface finishes such as further polymer coatings and inks. Further, the primer-coated polyester can be recycled and can be used in applications where the coating is in contact with food articles.Type: GrantFiled: June 14, 1988Date of Patent: December 19, 1989Assignee: E. I. Du Pont de Nemours and CompanyInventor: Richard P. Pankratz
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Patent number: 4882412Abstract: Composition useful for molding into articles such as food containers, beverage bottles, cured structural plastics and the like comprising molding grade polyester such as a linear, thermoplastic polyester having reacted therewith or copolymerized therein the residue of a 7-oxy-2H-1-benzopyran-2-one compound or a 7-oxy-2H-1-benzopyran-2-imine compound, said residue absorbing radiation in the range of about 330 to 380 nm and being non-extractable from said polymer and stable under polymer formation and processing conditions.Type: GrantFiled: December 21, 1988Date of Patent: November 21, 1989Assignee: Eastman Kodak CompanyInventors: Max A. Weaver, Clarence A. Coates, Jr., Wayne P. Pruett, Samuel D. Hilbert
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Patent number: 4882392Abstract: Novel radiopaque materials comprise heavy metal salts, such as bismuth and uranium salts complexed with a polymer. The metallic complexes which are permanent, nonleachable and have radiopacities at least equivalent to that of aluminum do not adversely affect the mechanical and physical properties of compositions. They are useful as medical and dental resins, in fabricating medical and dental appliances, prosthetic devices, radiation shielding devices and radiopaque polyester fabrics for clothing.Type: GrantFiled: November 18, 1988Date of Patent: November 21, 1989Assignee: The Research Foundation of State University of New YorkInventors: Johannes Smid, Israel Cabasso, Alan Obligin, H. Ralph Rawls
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Patent number: 4873294Abstract: The invention relates to mixtures of cationic benzene carboxylate polymers, a method for their preparation and use, which polymers are defined by the formula ##STR1## wherein R and R' are selected from the group consisting of alkyl or alkenyl having from 1 to 20 carbon atoms, aryl, ##STR2## with the proviso that at least one of R and R' is quaternized; Q is hydrogen, SO.sub.3 -alkali metal, SO.sub.3 H, COOH or COO-alkali metal, between about 55% and about 90% of Q in said mixture being hydrogen and between about 10% and about 45% of Q in said mixture being other than hydrogen;a and b each have a value of from 1 to 200, except that the sum of a+b is at least 25;X is hydrogen, lower alkyl or mixtures thereof in random or block distribution when a and/or b is greater than 3;c has a value of from 2 to 10,000;R.sub.1, R.sub.2 and R.sub.3 each contain from 1 to 22 carbon atoms and are alkyl, hydroxy alkyl or alkylamido lower alkyl;R.sub.5 is ##STR3## --OH, --OCOR.sub.1 or --OR.sub.1 ; R.sub.6 is hydrogen or --COR.Type: GrantFiled: June 16, 1988Date of Patent: October 10, 1989Assignee: GAF CorporationInventors: Anthony J. O'Lenick, Jr., Joseph J. Fanelli
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Patent number: 4841000Abstract: The preparation of aromatic polyesters based on diphenols and iso- and terephthalic acid is carried out by solventfree transesterification of esters of the diphenols with the aromatic dicarboxylic acids, the esters of the diphenols being initially reacted with teriphthalic acid alone and subsequently reacted with isophthalic acid after at least 80% of the terephthalic acid has undergone reaction.Type: GrantFiled: October 17, 1988Date of Patent: June 20, 1989Assignee: Bayer AktiengesellschaftInventors: Peter Tacke, Ulrich Grogp, Karsten-Josef Idel
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Patent number: 4810758Abstract: A resinous composition for coating use which is excellent in weather resistance and in low temperature curing properties, comprising a resin having resinous acid value based on carboxyl groups derived from its constituting tetrachlorophthalic acid of 2 to 8, a resinous acid value based on sulfonic acid groups derived from its constituting sulfophthalic acid of 0.5 to 5, and a functional group capable of reacting with a crosslinking agent to be compounded with the resin. The present resin is useful, in the combination form with a crosslinking agent, as a resinous vehicle of a coating composition which is excellent in curing properties, weather resistance, pigment dispersibility and storage stability and is specifically useful as an intermediate or top coat paint for automobile bodies or the like.Type: GrantFiled: March 12, 1987Date of Patent: March 7, 1989Assignee: Nippon Paint, Co., Ltd.Inventors: Hisaki Tanabe, Ryozo Takagawa, Hirotoshi Umemoto
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Patent number: 4782132Abstract: A process for producing a copolymeric polyester, which comprises a first step of preparing a copolymeric oligomer by reacting a starting material oligoester or polyester having repeating units of the formula: ##STR1## wherein R.sub.1 is a divalent aromatic hydrocarbon group having from 6 to 10 carbon atoms, a divalent alicyclic hydrocarbon group having from 4 to 20 carbon atoms or/and a divalent aliphatic hydrocarbon group having from 1 to 40 carbon atoms (provided a hydrogen atom in the aromatic ring of the aromatic hydrocarbon group may be substituted by a halogen atom or an alkyl or alkoxy group having from 1 to 4 carbon atoms), and R.sup.Type: GrantFiled: January 6, 1987Date of Patent: November 1, 1988Assignee: Mitsubishi Chemical Industries LimitedInventors: Seiichi Nozawa, Osamu Kishiro, Atsushi Kasai, Seigo Okumura, Ken Honma, Chieko Muramoto
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Patent number: 4754001Abstract: Interpenetrating polymer networks prepared from 60 to 99.9% by weight, of a thermoplast and 0.1 to 40% by weight of a thermosetting resin which comprises:(a) at least one polycyanate and(b) from 1 to 40% by weight, based on (a), of at least one polyester having a hydroxyl number of from 28 to 320, a number average molecular weight M.sub.n of from 700 to 8000 and containing from 50 to 92%, by weight, of alcohol residues, acid residues, or both with each of said residues containing cycloaliphatic moieties.Type: GrantFiled: September 12, 1986Date of Patent: June 28, 1988Assignee: Bayer AktiengesellschaftInventors: Johannes Blahak, Rolf Dhein, Lothar Preis, Manfred Schreckenberg
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Patent number: 4749775Abstract: Polyester polymers consisting essentially of repeating units having the formula ##STR1## repeating units having the formula--O--Ar.sup.1 --CO-- [II],repeating units having the formula--O--Ar.sup.2 --O-- [III],and repeating units having the formula ##STR2## wherein Ar.sup.1 is selected from ##STR3## Ar.sup.2 is selected from ##STR4## halogen substituted radicals of these radicals, and ##STR5## wherein X is selected from --O--, --S--, --SO.sub.2 --, --CO--, --O(CH.sub.2).sub.n O--.--CH.sub.2).sub.n, and ##STR6## wherein each n independently represents a member having a value of from 1 to 10, and each R.sup.4 is independently selected from alkyl radicals of 1 to 5 carbon atoms, andR.sup.2 and R.sup.3 are independently selected from hydrogen atom, halogen radicals, alkyl radicals of 1 to 5 carbon atoms, and phenyl radical, and R.sup.2 and R.sup.3 may be identical or different from each other, andR.sup.Type: GrantFiled: July 7, 1987Date of Patent: June 7, 1988Assignee: Idemitsu Kosan Co., Ltd.Inventors: Tetsuro Takeya, Tatsuya Tomioka, Shigeru Murakami, Kenkichi Takahashi
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Patent number: 4725647Abstract: Described herein is a process for preparing polyesters which comprises reacting a dihydric phenol with a diester derivative of an aromatic diacid in the presence of from about 10 to about 60 weight percent of a processing aid having a boiling point of greater than about 200.degree. C., under polyester forming conditions.Type: GrantFiled: November 8, 1984Date of Patent: February 16, 1988Assignee: Amoco CorporationInventors: Louis M. Maresca, Markus Matzner
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Patent number: 4670498Abstract: A polyester block copolymer composition comprising 100 parts by weight of a polyester block copolymer and 0.05 to 10 parts by weight of a metal alcoholate of the formula: M(OR).sub.n, wherein M is a metal of the groups I to III in periodic table, R is a hydrocarbon group having 1 to 20 carbon atoms, and n is 1 to 3, said polyester block copolymer composition having improved melt properties and being suitable for producing various shaped articles by extrusion molding.Type: GrantFiled: November 5, 1985Date of Patent: June 2, 1987Assignee: Toyo Boseki Kabushiki KaishaInventors: Hironobu Furusawa, Tadao Taika
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Patent number: 4644027Abstract: Phthalate polyester polyols comprising reaction products of a phthalic acid compound, a low molecular weight diol compound and a hydrophobic compound are provided which are compatibilized with fluorocarbon blowing agents and which possess a variety of other desirable characteristics. The polyols are producible by a simple heating process and are blendable with various conventional polyols and other additives to make resin prepolymer blends which can be catalytically reacted with organic isocyanates to produce cellular polyurethanes and polyurethane/polyisocyanurates.Type: GrantFiled: July 15, 1985Date of Patent: February 17, 1987Assignee: Stepan CompanyInventors: George Magnus, Melvin Loeb, Robert J. Wood
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Patent number: 4581093Abstract: Described are adhesives formed from certain diol/higher polyol/aromatic acid/aliphatic acid branched polyesters and laminates using them.Type: GrantFiled: October 17, 1984Date of Patent: April 8, 1986Assignee: Whittaker CorporationInventors: Paul R. Noyes, Eugene G. Sommerfeld
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Patent number: 4581420Abstract: Improved copolyether ester elastomers having excellent melt and crystallization temperatures as well as improved compression set as compared to prior art copolyetheresters are prepared by incorporating therein hexahydrophthalic ester polymer blocks.Type: GrantFiled: December 24, 1984Date of Patent: April 8, 1986Assignee: General Electric CompanyInventor: Gary F. Smith
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Patent number: 4576990Abstract: An insulating varnish comprising water-soluble polyesters and which can be used as an enamel or protective coating for electric wires is disclosed. The insulating varnish is prepared by reacting an aromatic dicarboxylic acid component and a polyhydric alcohol component to produce a high molecular weight polyester resin, addition reacting a polybasic acid with the resulting polyester resin to obtain a carboxyl group-containing polyester resin and dissolving the resulting polyester resin in water using a basic compound.Type: GrantFiled: November 15, 1984Date of Patent: March 18, 1986Assignee: Nitto Electric Industrial Co., Ltd.Inventors: Shiro Mazaki, Hiroshi Shibata
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Patent number: 4571419Abstract: This invention is directed to blends of novel poly(ester-carbonate)s containing repeating units derived from bis(3,5-dimethyl-4-hydroxyphenyl) sulfone and up to 80% of another dihydric phenol linked together by carbonate and arylate units and a polymer selected from the group consisting of an aromatic polycarbonate, a polyester, a polysulfone, a polyarylate, a poly(ether-imide), a styrenic polymer and a vinyl chloride containing polymer. The invention is also directed to a process for preparation of this polymer.Type: GrantFiled: February 12, 1985Date of Patent: February 18, 1986Assignee: Union Carbide CorporationInventor: Louis M. Maresca
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Patent number: 4535128Abstract: A resinous composition for coating use comprising a resin obtained by the reaction of base resin having as essential groups, both carboxyl groups derived from a polycarboxylic acid whose titration midpoint potential in non-aqueous potentiometric titration is more than -300 mV in a state capable of developing a resinous acid value and a functional group reactive with a crosslinking agent, and an alkyleneimine compound in an amount equivalent to resinous acid value of 0.01 to 50, the resinous acid value based on said polycarboxylic acid in the final composition being 2 to 50.This is useful for the preparation of a coating composition having improved curing property, storage stability and time color stability.Type: GrantFiled: December 30, 1983Date of Patent: August 13, 1985Inventors: Hirotoshi Umemoto, Hisaki Tanabe, Shinji Nakano
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Patent number: 4524165Abstract: Disclosed are stabilized polyester compositions having significantly improved weatherability. These polyesters consist of copolyesterethers derived from a dicarboxylic acid component comprising about 80-100 mole % 1,4-cyclohexanedicarboxylic acid having a trans isomer content of at least 70% and about 0-20 mole % of a second dicarboxylic acid and a glycol component comprising about 70-95 mole % 1,4-cyclohexanedimethanol and about 5-30 mole % of a polyalkylene ether glycol having a molecular weight of about 600 to about 3000. The copolyesterether compositions further comprise a stabilizing effective amount of the combination of (1) at least one hindered phenolic antioxidant, (2) at least one ultraviolet light stabilizing compound compatible with said copolyesterether and (3) at least one hindered amine light stabilizing compound having the formulae ##STR1## the groups shown as R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are each independently selected from various substituents.Type: GrantFiled: October 24, 1983Date of Patent: June 18, 1985Assignee: Eastman Kodak CompanyInventors: Harry R. Musser, Thomas H. Strickland, Joseph S. Zannucci
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Patent number: 4520168Abstract: Color improved polyarylates having a reduced viscosity of from about 0.1 to greater than 1.0 dl/gm produced by a process comprising the following steps:(a) reacting an acid anhydride derived from an acid containing from 2 to 8 carbon atoms with at least one dihydric phenol to form the corresponding diester; and(b) reacting said diester with at least one aromatic dicarboxylic acid at a temperature sufficient to form the polyarylate, wherein the improvement comprises carrying out said process in the presence of a particular solid adsorbent.Type: GrantFiled: March 27, 1984Date of Patent: May 28, 1985Assignee: Union Carbide CorporationInventors: James H. Kawakami, Benito See, Thomas R. Jones, Louis M. Maresca
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Patent number: 4487896Abstract: Copolyester-carbonate resin compositions exhibiting improved processability comprised of (i) at least one copolyester-carbonate resin derived from (a) a carbonate precursor; (b) at least one difunctional carboxylic acid or a reactive derivative thereof; and (c) at least one dihydric phenol wherein the bridging divalent hydrocarbon group connecting the two aromatic residues is represented by the general formula ##STR1## wherein R represents a straight chain alkyl radical containing from 1 to 5 carbon atoms.Type: GrantFiled: September 2, 1983Date of Patent: December 11, 1984Assignee: General Electric CompanyInventors: Victor Mark, Charles V. Hedges