From Two Or More Polyols Patents (Class 525/173)
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Patent number: 5456067Abstract: An improved crop harvesting belt for swather belt and pick-up belt applications, which is both oil resistant and cold weather reliable, the belt made of a compound of styrene butadiene rubber and nitrile rubber, the nitrile rubber preferably at approximately 6% of the compound and having an acrylonitrile level of approximately 33% by weight.Type: GrantFiled: April 4, 1994Date of Patent: October 10, 1995Assignee: Legg Company, Inc.Inventor: Ronald L. Marler
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Patent number: 5436311Abstract: A powdered thermosetting composition comprising as binder a mixture of a linear carboxyl group-containing polyester and a glycidyl group-containing acrylic copolymer is described. The polyester has an acid number of 20 to 50 mg KOH/g and the acrylic copolymer is obtained from 5% to 30% by weight of glycidyl acrylate or glycidyl methacrylate and 70% to 95% by weight of methyl methacrylate, whereby up to 25% by weight of the methyl methacrylate can be replaced by another vinyl monomer, said acrylic copolymer having a number-average molecular weight (Mn) of from about 4,000 to about 10,000. This composition is particularly useful for the preparation of powdered paints and varnishes which can be applied with an electrostatic spray gun and cured at a temperature of from about 160.degree. to 210.degree. C. to produce matte finishes of excellent quality.Type: GrantFiled: December 22, 1994Date of Patent: July 25, 1995Assignee: U C B S.A.Inventors: Jean-Marie Hoebeke, Daniel Maetens, Michel Baudour, Jean-Marie Loutz
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Patent number: 5409989Abstract: A resin composition for toners, composed essentially of a suspension polymerizate of:(a) 5 to 40% by weight per total polymer of a polyester comprising at least one aromatic diol component an at least one aliphatic diol component, and having a weight average molecular weight of 3,000 to 30,000, an acid value of 0.5 to 10 mgKOH/g, and an OH value of 10 to 60 mgKOH/g;(b) 60 to 95% by weight per total polymer of a vinyl monomer; and(c) 0.1 to 1.0% by weight per total polymer of a divinyl monomer,wherein said suspension polymerizate hasa glass transition temperature of 40.degree. to 70.degree. C.,an acid value of 0.1 to 10 mgKOH/g, anda softening temperature of 100.degree. to 160.degree. C.Type: GrantFiled: December 27, 1993Date of Patent: April 25, 1995Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Hirokazu Ito, Masahiro Ito, Keiji Yoshida, Syuji Takahiro, Motoshi Inagaki
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Patent number: 5405909Abstract: A thermoplastic elastomer composition which is useful for bumper, boot, sound absorbing gear, sports shoes etc. is provided by mixing the following (A)-(D).A: 30-58 parts by wt of saturated polyester resin,B: 42-70 parts by wt of an epoxy group-containing ethylene copolymer ofa) 50-99% by wt of ethylene unit,b) 0.1-30% by wt of unsaturated carboxylic acid glycidyl ester unit or unsaturated glycidyl ether unit andc) 0-49% by wt of ethylenically unsaturated ester unitC: 0.01-20 parts by wt of specific polyfunctional compound containing two or more functional groups, andD: 1-30 parts by wt of block copolyether ester elastomer.The amounts of C and D are based on 100 parts of A and B.Type: GrantFiled: October 26, 1993Date of Patent: April 11, 1995Assignee: Sumitomo Chemical Co., Ltd.Inventors: Tadayuki Ohmae, Yoshiki Toyoshima, Kentaro Mashita, Noboru Yamaguchi, Kenzo Chikanari
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Patent number: 5395890Abstract: A styrene-based resin composition containing (A) a styrene-based resin with mainly syndiotactic configuration and (B) a thermoplastic resin other than the styrene-based resin exhibit excellent heat resistance and impact resistance. Optionally, the styrene-based resin composition may further contain (C) a rubber polymer and/or (D) an inorganic filler. More particularly, a composition containing 1-98% by weight (A) 1-98% by weight of a styrene-based resin with mainly syndiotactic configuration and 1-98% by weight (B) a polyethylene terephthalate resin or a polyester resin is disclosed.Type: GrantFiled: April 17, 1990Date of Patent: March 7, 1995Assignee: Idemitsu Kosan Co., Ltd.Inventors: Akikazu Nakano, Takashi Sumitomo, Keisuke Funaki, Toshikazu Ijitsu, Michihiro Sawada, Masahiko Kuramoto, Masakazu Suzuki
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Patent number: 5382628Abstract: The present invention relates to thermoformed plastic articles such as frozen food trays which exhibit unexpectedly high impact strength at low temperatures. The articles are obtained from polyester blends containing 88 to 99 weight percent of a poly(ethylene terephthalate) resin and 1 to 12 weight percent of a poly(1,4-cyclohexylenedimethylene terephthalate) resin which contains at least 30 mole percent of 1,4-cyclohexanedimethanol.Type: GrantFiled: February 28, 1994Date of Patent: January 17, 1995Assignee: Eastman Chemical CompanyInventors: Jennifer L. Stewart, Emily T. Bell
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Patent number: 5349007Abstract: Lightweight polyester resin molding compositions include a melt-blend of (A) between 97 to 20 parts by weight, based on 100 parts by weight of the total composition weight, of a polyester base resin, (B) between 3 to 80 parts by weight, based on 100 parts by weight of the total composition weight, of a polyolefin resin, (C) between 0.1 to 15 parts by weight, based on 100 parts by weight of the total composition weight, of a compatibilizing compound having a carbon-carbon double bond and an epoxy group in its molecule, (D) between 0.1 to 20% by weight, based on the weight of the compatibilizing compound, of a free radical initiator, and optionally, (E) up to 120 parts by weight, based on 100 parts by weight of the total composition, of a filler material. The free radical initiator is at least one compound having a one-minute half-life temperature of 130.degree. C.Type: GrantFiled: July 1, 1993Date of Patent: September 20, 1994Assignees: Polyplastics Co., Ltd., Takeda Chemical Industries, Ltd.Inventors: Hajime Serizawa, Masaru Kubota, Hiroyuki Sano, Yoshihisa Tajima
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Patent number: 5314964Abstract: A process for the preparation of novel grafted latexes having backbones formed from unsaturated monomers and having pendent isocyanate containing sidechains derived from isopropenyl-alpha, alpha- dimethylbenzyl isocyanate or copolymers thereof is described.Grafting latexes is carried out using a free radical redox initiator system in an aqueous medium. Latexes such as polybutadiene, polyvinyl chloride, and polyvinyl chloride-acrylic copolymers are converted to the corresponding isocyanate-functional latexes by the process of the invention. The isocyanate-functional grafted and cografted latexes described are useful in curable compositions.Type: GrantFiled: November 2, 1990Date of Patent: May 24, 1994Assignee: Cytec Technology Corp.Inventor: Howard R. Lucas
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Patent number: 5310787Abstract: A polyester packaging material having a layer formed from a polyester composition as a content contacting layer, wherein the polyester composition comprises 70-95 parts by weight of a polyethylene terephthalate copolymer and 5-30 parts by weight of an ethylene copolymer ionomer. The polyethylene terephthalate copolymer is derived from terephthalic acid (and isophthalic acid, if desired), ethylene glycol and cyclohexanedimethanol (a molar ratio of the ethylene glycol to the cyclohexanedimethanol being within the range of 95/5 to 75/25), and the polyethylene terephthalate copolymer has an endothermic peak of 180.degree. to 240.degree. C. as measured by a differential scanning calorimeter after heated at 130.degree. C. for 5 hours in nitrogen and has an endotherm of 10 to 40 Joule/g at the endothermic peak.Type: GrantFiled: May 28, 1992Date of Patent: May 10, 1994Assignee: Du Pont-Mitsui Polychemicals Co., Ltd.Inventors: Yoshikazu Kutsuwa, Shigenori Ishii, Toru Fukada
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Patent number: 5302650Abstract: A vinyl chloride resin composition comprises: a mixture composed of 10 to 97 wt % vinyl chloride resin and 3 to 90 wt % thermoplastic polyester elastomer; and 10 to 200 parts by weight of a plasticizer with respect to 100 parts by weight of said mixture, the molecular weight of said plasticizer being 500 to 5000. This vinyl chloride resin composition can be easily melt bonded to polycarbonate resins which conventionally cannot be readily melt bonded. Therefore, the composition can be widely used in extrusion molding and injection molding. Furthermore, as a high molecular weight plasticizer is employed as the plasticizing agent, the problem of cracks can be overcome. In addition, since the necessity of using the adhesive agent in the manufacturing process can be eliminated, the overall cost can be significantly reduced.Type: GrantFiled: December 29, 1992Date of Patent: April 12, 1994Assignee: Riken Vinyl Industry Co., Ltd.Inventor: Toshio Ito
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Patent number: 5294650Abstract: This invention relates to a process for preparing aqueous blends of sulfo-polyesters and solid acrylic resins without volatile organic compounds (VOC's) and surfactants. More specifically, the acrylic resins are characterized by an inverse relationship between the molecular weight and acid number of the resin, and the sulfo-polyesters contain at least 12 mole percent of a difunctional sulfomonomer. The aqueous sulfo-polyester/acrylic resin blends of the present invention are useful in inks, overprint varnishes, primers, paints, and coatings.Type: GrantFiled: February 8, 1993Date of Patent: March 15, 1994Assignee: Eastman Chemical CompanyInventor: Mahendra K. Sharma
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Patent number: 5283110Abstract: A high temperature copolyester monofilament exhibits enhanced knot tenacity and is formed from the extrusion of a polymer blend of a copolyester resin and a fluoropolymer resin. Additives such as thermal stabilizers may be added to the polymer blend. The polymer blend may be extruded in the presence of other additives such as a hydrolytic stabilizer. The monofilament exhibits a higher average knot tenacity, a higher minimum knot tenacity, a narrower knot tenacity range and lower standard deviation as compared to standard high temperature copolyester monofilaments. A dryer fabric comprises a plurality of woven copolyester monofilaments having enhanced knot tenacity, the monofilaments comprising a polymer blend of copolyester resin and fluoropolymer resin, and may further include thermal stabilizers and hydrolytic stabilizers.Type: GrantFiled: February 3, 1992Date of Patent: February 1, 1994Assignee: Shakespeare CompanyInventors: Jennifer A. Gardner, Michelle A. Diaz-Kotti
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Patent number: 5270390Abstract: The present invention discloses a resin composition containing 26.about.70 weight % of thermoplastic polyester resin, 10.about.30 weight % of polyester elastomer, and 20.about.44 weight % of vinylidene chloride resin and a biaxially stretched heat shrinkable film having cold resistance and oxygen gas barrier property comprising said resin composition, and further a biaxially stretched heat shrinkable laminated film having not only oxygen gas barrier property and cold resistance, but also melt hole resistance, heat resistance sealing property, and transparency after the shrinkage and comprising barrier layer of said resin composition, outer layer (polyamide or crosslinkable polyolefin), inner layer (crosslinkable polyolefin), and heat sealable layer (low crosslinkable polyolefin), at least the outer layer, the inner layer and the heat sealing layer being crosslinked by electron beam irradiation.Type: GrantFiled: August 15, 1991Date of Patent: December 14, 1993Assignee: Kureha Kagaku Kogyo Kabushiki KaishaInventors: Kunio Shibuya, Yoshihiro Matsukura, Nobuyuki Hisazumi
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Patent number: 5260379Abstract: This invention relates to an injection molding composition having a melt viscosity lower than about 2000 poise at 1500/sec. shear rate at a temperature of about 275.degree. C., and an excellent stiffness of at least 200,000 psi, comprising:from about 10 to about 90% of a polyester comprising repeat units from terephthalic acid, ethylene glycol, and 1,4-cyclohexanedimethanol, andfrom about 10 to about 90% styrene copolymer comprising repeat units from about 5 to about 35 mole percent of methyl methacrylate.Type: GrantFiled: September 13, 1991Date of Patent: November 9, 1993Assignee: Eastman Kodak CompanyInventors: Dale M. Blakely, Robert W. Seymour
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Patent number: 5256722Abstract: Blends having a high molding fluidity and flowability and high thermoresistance comprising:(a) at least one vinyl-aromatic thermoplastic polymer; and(b) at least one copolyester having a melting point lower than the molding temperature of the thermoplastic polymer (a), and preferably lower than 200.degree. C., a melt viscosity, at 232.degree. C., lower than 50 Pa.S., and obtained from at least one bicarboxylic aromatic acid, at least one aliphatic bicarboxylic acid, and at least one glycol.Type: GrantFiled: August 6, 1992Date of Patent: October 26, 1993Assignee: Montedipe S.r.l.Inventors: Gianfranco Biglione, Gian Claudio Fasulo
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Patent number: 5254626Abstract: Thermoplastic compositions comprising:(a) from 55 to 85% by weight of at least one aromatic polyester;(b) from 10 to 40% by weight of at least one elastomeric copolymer constituted by 45-90 mol % of ethylene, 5-50 mol % of an alkyl acrylate or alkyl methacrylate, in which the alkyl moiety contains from 1 to 8 carbon atoms, 0.3-5 mol % of an unsaturated epoxide;(c) from 0.5 to 5% by weight of at least one elastomeric copolymer constituted by 45-90 mol % of ethylene, 5-50 mol % of an alkyl acrylate or alkyl methacrylate, in which the alkyl moiety contains from 1 to 8 carbon atoms, 0.1-5 mol % of monomeric units functionalized with amido-aminic and/or imido-aminic moieties;with the total of the percentages of components (a), (b) and (c) equating 100.Type: GrantFiled: July 14, 1992Date of Patent: October 19, 1993Assignee: Istituto Guido Donegani S.p.A.Inventors: Maurizio Penco, Maria A. Pastorino, Giorgio Giannotta
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Patent number: 5252665Abstract: Polyester-based shock-resistant compositions, endowed with a high shock resistance, particularly at low temperatures comprising:(a) a matrix constituted by one or more saturated polyesters;(b) an elastomer constituted by butadiene or acrylic rubbers; and(c) a block-copolyester.Type: GrantFiled: January 2, 1992Date of Patent: October 12, 1993Assignee: Ausimont S.p.A.Inventors: Antonio Chiolle, Gaetano Andreoli
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Patent number: 5219941Abstract: This invention relates to compositions containing poly(1,4-cyclohexylenedimethylene terephthalate) (PCT) or copolyesters from terephthalic acid, 1,4-cyclohexanedimethanol and ethylene glycol, having improved impact strength at low temperatures due to the presence of an ethylene copolymer which contains repeat units from ethylene and at least 5 mole percent of a free radical polymerizable comonomer selected from the group consisting of vinyl acetate and an alkyl acrylate.Type: GrantFiled: March 16, 1992Date of Patent: June 15, 1993Assignee: Eastman Kodak CompanyInventors: Max F. Meyer, Jr., Mark E. Stewart, Martin R. Tant
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Patent number: 5206291Abstract: Disclosed are polymer compositions having improved impact strength, comprising copolyesters of terephthalic acid, ethylene glycol and 1,4-cyclohexanedimethanol with epoxy functional polyolefins.Type: GrantFiled: June 24, 1991Date of Patent: April 27, 1993Assignee: Eastman Kodak CompanyInventor: Mark E. Stewart
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Patent number: 5202384Abstract: It is often desirable to increase the modulus of rubbers utilized in a wide variety of applications. This invention discloses a technique for modifying rubbers to improve their modulus without sacrificing other properties. By utilizing the process of this invention, rubber compositions having increased modulus are prepared by grafting polyester onto rubber. This can be accomplished by reacting a polydiene rubber with a thioacid or maleic anhydride and subsequently with the polyester. It is also possible to prepare such polyester modified rubber compositions by reacting an epoxidized rubber with the polyester.Type: GrantFiled: November 7, 1990Date of Patent: April 13, 1993Assignee: The Goodyear Tire & Rubber CompanyInventors: James B. Pyle, Richard G. Bauer, Donald J. Burlett
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Patent number: 5196482Abstract: Compositions comprising polyetherester resins, polyetherimide ester resins, alone or combined with polyester resins, and mixtures of any of them or of polyester resins alone with copolymers of alpha-olefins and vinyl esters of aliphatic monocarboxylic acids have improved elastomeric character. For example, addition of 50 and 30 parts by weight of a vinyl acetate-ethylene copolymer having a high content of units derived from vinyl acetate to a polyetherimide ester copolymer considerably improves compressibility, elasticity, low temperature impact strength, UV light resistance and chemical resistance. Articles shaped from such compositions show desirably lower hardness, improved dynamic fatigue properties, paintability, extrudability and injection moldability.Type: GrantFiled: July 31, 1990Date of Patent: March 23, 1993Assignee: General Electric CompanyInventors: Peter O. Stahl, Eugen J. Geyer
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Patent number: 5179163Abstract: Molding compositions having improved flexibility are made from blends of segmented copolyester elastomers and copolymers of ethylene and ethyl acrylate.Type: GrantFiled: May 24, 1991Date of Patent: January 12, 1993Assignee: Hoechst Celanese CorporationInventor: Michael D. Golder
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Patent number: 5166267Abstract: It is desirable to increase the modulus of rubbers utilized in a wide variety of applications. For example, it is typically desirable to increase the modulus of rubber compounds which are utilized in tire tread base compositions and in tire wire coat compounds. Unfortunately, most conventional techniques for increasing the modulus of a rubber compound are detrimental to other rubber properties, such as hysteresis and cut growth resistance. By utilizing the techniques of this invention rubber compounds can be prepared which exhibit high tensile strength, high modulus, and good cut growth resistance. The subject invention specifically relates to a process for preparing a highly dispersed blend of a polyester in an elastomer which comprises (1) blending a solution of a rubber in an organic solvent with a solution of a polyester in an organic solvent to produce a dispersion containing said rubber and said polyester, and (2) recovering the highly dispersed blend from the dispersion.Type: GrantFiled: September 17, 1990Date of Patent: November 24, 1992Assignee: The Goodyear Tire & Rubber CompanyInventors: Gerald Cohn, Douglas D. Callander, William C. T. Tung
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Patent number: 5162424Abstract: The invention relates to polymer mixtures which comprise a polybutylene terephthalate, a thermoplastic elastomer, and a brominated polystyrene. The polymer mixtures according to the invention have a combination of the following favorable properties: a good flexibility, a good flow of the melt, good flame-retarding properties and a high tracking index.Type: GrantFiled: April 10, 1990Date of Patent: November 10, 1992Assignee: General Electric CompanyInventors: Jan de Boer, Farshid Tabankia
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Patent number: 5162416Abstract: Impact resistant polymer blends of crystallizable polyester, e.g. PET, and styrene copolymer graft rubber composition, e.g. ABS, and an impact modifying amount of a mixture of a fatty acid salt, e.g. sodium stearate, and an acid copolymer, e.g. SMA, are useful as engineering thermoplastics, e.g. for injection molding of articles requiring high impact resistance.Type: GrantFiled: March 17, 1989Date of Patent: November 10, 1992Assignee: Monsanto CompanyInventor: Kishore Udipi
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Patent number: 5118760Abstract: Disclosed is a polymer blend of a copolyesterether and an isotactic homopolymer of propylene, molded articles of which have improved impact strength.Type: GrantFiled: December 26, 1990Date of Patent: June 2, 1992Assignee: Eastman Kodak CompanyInventors: Dale M. Blakely, Robert W. Seymour
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Patent number: 5112915Abstract: Copolyetherester molding compositions comprising a copolyetherester and a modifying amount of a modulus reducing rubbery interpolymer comprising a crosslinked (meth)acrylate rubbery phase and an interpenetrating, crosslinked styrenic resin phase.Type: GrantFiled: April 16, 1990Date of Patent: May 12, 1992Assignee: General Electric CompanyInventors: Thomas A. Morelli, Warren J. Peascoe, Stefan F. Rasch, John A. Tyrell
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Patent number: 5106897Abstract: A method for improving the low temperature impact strength of a thermoplastic polyblend of PETG and SAN which method comprises incorporating therein an effective amount of a dispersant selected from the group consisting of mono- and di-carboxylic acids containing 6 to 36 carbon atoms; alkali and alkaline-earth metal salts and amides of such acids; and aliphatic alcohols containing 6 to 36 carbon atoms.Type: GrantFiled: February 20, 1990Date of Patent: April 21, 1992Assignee: Monsanto CompanyInventors: James Y. Chen, Donald B. Baldridge
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Patent number: 5091478Abstract: Partially grafted flexible thermoplastic compositions formed by melt blending under high shear, a thermoplastic material having available graft sites, said thermoplastic material being at least one continuous phase of the composition, an ethylene copolymer containing an unsaturated mono-carboxylic acid, and a polymeric grafting agent having reactive groups capable of reacting with the mono-carboxylic acid in the ethylene copolymer and with the available graft sites in the thermoplastic material. These compositions have use in a wide range of molding, coating and adhesive applications, including various automotive applications, wire and cable coating applications and high temperature adhesive applications.Type: GrantFiled: May 21, 1990Date of Patent: February 25, 1992Assignee: E. I. Du Pont de Nemours and CompanyInventor: Robert P. Saltman
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Patent number: 5057561Abstract: Hot melt adhesive compositions comprising:(a) 40%-90% by weight of a copolyester having a melting temperature lower than 150.degree. C., obtained from an aromatic dicarboxylic acid, an aliphatic dicarboxylic acid, and a glycol;(b) 5%-55% by weight of an elastomer based on a thermoplastic segmented copolyester having a melting temperature of at least 100.degree. C., and containing recurring units deriving from polyetherglycol; and(c) 5%-55% by weight of a natural or synthetic thermoplastic resin having a Brookfield viscosity, at 180.degree. C., lower than 25,000 cps.Type: GrantFiled: July 21, 1989Date of Patent: October 15, 1991Inventors: Michele Manica, Antonio Chiolle, Gian P. Maltoni
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Patent number: 5047470Abstract: Thermoplastic polymer compositions comprise a thermoplastic copolyether-ester elastomer, a rubber graft polymer and a rigid polymer. The rigid polymer is formed from one or more monomers selected from styrene, .alpha.-methyl styrene and halogen-substituted styrenes, at least 20 weight percent acrylonitrile, and N-phenyl maleimide, and is included in the compositions to provide improved impact strength and tensile elongation without significantly deteriorating other physical properties of the compositions.Type: GrantFiled: July 28, 1989Date of Patent: September 10, 1991Assignee: General Electric CompanyInventors: David Whalen, Oliver P. Creecy
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Patent number: 5039744Abstract: Molding compositions having improved flexibility are made from blends of segmented copolyester elastomers and copolymers of ethylene and ethyl acrylate.Type: GrantFiled: May 11, 1989Date of Patent: August 13, 1991Assignee: Hoechst Celanese CorporationInventor: Michael D. Golder
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Patent number: 5017657Abstract: Rapidly-crystallizing polyester compositions comprising a polyester thermoplastic resin and a styrene polymer having an essentially syndiotactic structure.Type: GrantFiled: September 5, 1989Date of Patent: May 21, 1991Assignee: Montedipe S.r.l.Inventors: Leonardo Fiore, Italo Borghi, Andrea Mattiussi
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Patent number: 5006604Abstract: A blend of a terephthalic acid/ethylene glycol/cyclohexanedimethanol copolyester and an acrylonitrile/butadiene/styrene copolymer is disclosed. This blend possesses high notched Izod impact strength while maintaining a good balance of flexural modulus properties, tensile properties, heat diffusion temperature properties and hardness properties. This blend is useful in making automotive and appliance components.Type: GrantFiled: September 11, 1989Date of Patent: April 9, 1991Assignee: Eastman Kodak CompanyInventor: Kenneth A. Romance
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Patent number: 5001192Abstract: A polymeric polyblend composition comprising a vinylidene chloride interpolymer, polyvinylchloride, and a compatibilizing amount of a compatabilizing polymer, said polymers being miscible.Type: GrantFiled: November 9, 1988Date of Patent: March 19, 1991Assignee: The Dow Chemical CompanyInventor: Yun C. Sun
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Patent number: 4996262Abstract: It is often desirable to increase the modulus of rubbers utilized in a wide variety of applications. This invention discloses a technique for modifying rubbers to improve their modulus without sacrificing other properties. By utilizing the process of this invention, rubber compositions having increased modulus are prepared by grafting polyester onto rubber. This can be accomplished by reacting a polydiene rubber with a thioacid or maleic anhydride and subsequently with the polyester. It is also possible to prepare such polyester modified rubber compositions by reacting an epoxidized rubber with the polyester.Type: GrantFiled: March 27, 1989Date of Patent: February 26, 1991Assignee: The Goodyear Tire & Rubber CompanyInventors: James B. Pyke, Richard G. Bauer, Donald J. Burlett
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Patent number: 4992506Abstract: Molding compositions comprise a copolyetherester (A), (B) an aromatic thermoplastic polyester and a multistage rubbery elastomer (C) comprising a crosslinked (meth)acrylate phase and an interpenetrating, crosslinked styrenic phase and optionally, a mineral filler (D). Such compositions are useful for making molded articles with a good balance of modulus and elongation properties.Type: GrantFiled: December 2, 1988Date of Patent: February 12, 1991Assignee: General Electric CompanyInventors: Michael R. McCormick, Thomas A. Morelli, Warren J. Peascoe, Stefan F. Rasch, John A. Tyrell, May T. Wong
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Patent number: 4987187Abstract: A molding composition prepared from a blend of: (A) a copolyester of a dicarboxylic acid moiety, such as terephthalic acid or dimethyl terephthalate and a dihydric alcohol moiety, such as ethylene glycol in combination with diethylene glycol or 1,4-cyclohexanedimethanol, and (B) a copolymer prepared from a styrenic monomer and an ethylenically unsaturated nitrile, wherein articles molded from such compositions have improved clarity and toughness.Type: GrantFiled: December 20, 1989Date of Patent: January 22, 1991Assignee: Monsanto CompanyInventors: Kishore Udipi, Allen R. Padwa
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Patent number: 4985501Abstract: A molding composition prepared from a blend of: (a) a copolyester of a dicarboxylic acid moiety, such as terephthalic acid or dimethyl terephthalate, and a dihydric alcohol moiety, such as ethylene glycol in combination with diethylene glycol or 1,4-cyclohexanedimethanol and (b) a copolymer prepared from a styrenic monomer, an unsaturated dicarboxylic acid anhydride, and optionally an alkyl (meth)acrylic ester wherein the alkyl group contains 1 to 3 carbon atoms, wherein articles molded from such compositions have improved clarity and toughness.Type: GrantFiled: December 20, 1989Date of Patent: January 15, 1991Assignee: Monsanto CompanyInventor: Kishore Udipi
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Patent number: 4981908Abstract: Blends of 20-99 parts by weight of a multi-block copolyester thermoplastic elastomer melting above 100.degree. C. with 80-1 parts by weight of a polyacrylate elastomer.Type: GrantFiled: February 2, 1988Date of Patent: January 1, 1991Assignee: E. I. Du Pont De Nemours and CompanyInventor: James R. Wolfe, Jr.
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Patent number: 4950717Abstract: A compatible polymer blend, comprising(i) about 10 to 90 weight percent of an ethylene-acrylic acid copolymer comprising from about 10 to 50 mole percent acrylic acid monomer units; and(ii) about 90 to 10 weight percent of a polyester-ether derived from 1,4-cyclohexane dicarboxylic acid, 1,4-cyclohexane dimethanol and poly(oxytetramethylene) glycol.Type: GrantFiled: June 2, 1989Date of Patent: August 21, 1990Assignee: Eastman Kodak CompanyInventors: Robert W. Seymour, Thomas E. Flora
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Patent number: 4929656Abstract: Elastomeric compositions having resistance to hot grease aging are made from a blend of a thermoplastic copolyester elastomer, and chorinated polyethylene with or without the addition of a carbodiimide and a guanidine.Type: GrantFiled: May 11, 1989Date of Patent: May 29, 1990Assignee: Hoechst Celanese CorporationInventor: Michael D. Golder
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Patent number: 4902771Abstract: An imido-modified unsaturated polyester resin composition comprising an imido-modified unsaturated polyester obtainable by reacting an animal or vegetable fat and oil or a fatty acid thereof, an imido alcohol obtainable from a primary amino-alcohol and a polybasic acid anhydride, a polyhydroxy alcohol, and a polybasic acid in such a manner that the imido alcohol is used in an amount of 10 to 60% equivalent amount based on the alcoholic components; and a polymeric monomer.In one of the preferred embodiments, the composition according to the present invention further contains an inorganic filler.According to the present invention, there can be provided resin composition in which the compatibility under heat deterioration when used in enamelled wires has been improved, while maintaining excellent electrical and mechanical properties.Type: GrantFiled: August 23, 1988Date of Patent: February 20, 1990Assignee: Hitachi Chemical Company, Ltd.Inventors: Yasuo Sugawara, Yuuji Aimono, Hatuo Sugitani
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Patent number: 4845188Abstract: A composition useful for molding into articles such as food containers, soft drink bottles, cured structural plastics and the like, comprising molding grade linear or unsaturated polyester or polycarbonate having reacted or copolymerized therein the residue of one or a mixture of methine reactants of the formula ##STR1## whereinR.sup.1 is an unsubstituted or substituted alkyl, cycloalkyl or aryl radical;A is an unsubstituted or substituted 1,4-phenylene radical;R.sup.2 is hydrogen or an unsubstituted or substituted alkyl, alkenyl, cycloalkyl or aryl radical;R.sup.3 is cyano, ##STR2## or an unsubstituted or substituted carbamoyl, alkanoyl, aroyl, alkylsulfonyl, arylsulfonyl, aryl or aromatic heterocyclic radicals. The methine residues are present in the polymer as an integral part of the polymer chain and absorb ultraviolet radiation in the range of about 250 to about 390 nm. The residues are non-extractable from the polymer and stable at the conditions at which the polymers are manufactured and processed.Type: GrantFiled: August 19, 1988Date of Patent: July 4, 1989Assignee: Eastman Kodak CompanyInventors: Max A. Weaver, Wayne P. Pruett, Samuel D. Hilbert, Clarence A. Coates, Jr.
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Patent number: 4843124Abstract: A thermoplastic elastomer blend of 15-90 parts of a continuous matrix of a thermoplastic elastomeric copolyester having a melting point of 100.degree.-200.degree. C. and 10-85 parts of crosslinked polychloroprene present in the form of finely divided particles.Type: GrantFiled: June 3, 1987Date of Patent: June 27, 1989Assignee: E. I. Du Pont de Neumours and CompanyInventor: James R. Wolfe, Jr.
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Patent number: 4820763Abstract: A polyblend of poly(vinyl chloride) ("PVC") and a copolyester ("CPE") consists essentially of three components in a structure --(MR).sub.x --(MQ).sub.y -- wherein (MR).sub.x represents an ester segment with a repeating unit of mol wt 204 or 220, (MQ).sub.y an ester segment consisting of a residue of a polyester diol, so that the CPE is non-elastomeric and has a m p in the range from above 170.degree. C. to about 220.degree. C. Then the CPE provides a limited plasticizing function in PVC when the CPE is used in the range from about 30 to about 70 parts by wt based on 100 parts of the polyblend. The lack of a typical plasticizing function is evidenced by a relatively flat modulus curve, preferably one having a slope less than 1.2.times.10.sup.5 psi per unit weight of PVC in the polyblend.Type: GrantFiled: April 14, 1987Date of Patent: April 11, 1989Assignee: The B. F. Goodrich CompanyInventor: Wei-Yeih Yang
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Patent number: 4806618Abstract: Novel aromatic polyethers excellent in heat resistance and soluble in various organic solvents are obtained by introducing 9,9-biphenylfluorene group, optionally together with another divalent aromatic group, into the structural units of a polyether derived from either diphenyl ketone or diphenyl sulfone.Type: GrantFiled: November 2, 1987Date of Patent: February 21, 1989Assignee: Central Glass Company, LimitedInventors: Yoshio Imai, Masaaki Kakimoto, Yutaka Maruyama, Toshio Koishi
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Patent number: 4806598Abstract: A stable, nonreactive, thermoplastic polymer blend comprising from about 10 to about 95 percent by weight of a superabsorbent, thermoplastic polymeric composition and from about 90 to about 5 percent by weight of at least one thermoplastic polymer.Type: GrantFiled: December 22, 1986Date of Patent: February 21, 1989Assignee: Kimberly-Clark CorporationInventor: Michael T. Morman
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Patent number: 4806588Abstract: A polyester resin composition which comprises(A) polyethylene terephthalate or a copolyester containing at least 80 mol % of ethylene terephthalate repeating unit.(B) a metal salt of a copolymer composed of .alpha.-olefin and .alpha.,.beta.-unsaturated carboxylic acid,(C) a polyvalent oxazoline compound of the formula: ##STR1## wherein R is an aliphatic or aromatic hydrocarbon group such as alkylene or arylene having 1 to 24 carbon atoms optionally substituted with lower alkyl having 1 to 6 carbon atoms or aryl having 6 to 19 carbon atoms; n is 0 or 1; X and Y are hydrogen or 2-oxazoline group, when n is 1, or no X and Y are present, when n is 0; and all oxazoline may be substituted with lower alkyl having 1 to 6 carbon atoms or aryl having 6 to 19 carbon atoms, and optionally(D) a polyester elastomer.Type: GrantFiled: April 6, 1987Date of Patent: February 21, 1989Assignee: Toyo Boseki Kabushiki KaishaInventors: Susumu Fujimoto, Shigeo Kobayashi
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Patent number: 4797437Abstract: Segmented thermoplastic copolyester elastomers containing recurring polymeric long chain ester units derived from phthalic acids and long chain glycols and short chain ester units derived from phthalic acids and 1,4-butanediol or 1,4-butenediol. The elastomers also contain polyvinylpyrrolidone and preferably also contain guanidine stabilizer, phosphorus stabilizer and diphenylamine.Type: GrantFiled: December 1, 1983Date of Patent: January 10, 1989Assignee: Hoechst Celanese CorporationInventors: Michael D. Golder, Stanley J. Gromelski, Jr.