Solid Polymer Derived From Metal-containing Ethylenic Reactant Patents (Class 525/201)
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Patent number: 6130294Abstract: In a golf ball comprising a core and a cover, the cover is composed mainly of a blend of a soft ionomer in the form of a magnesium ion neutralized ethylene/(meth)acrylic acid/acrylate terpolymer and a hard ionomer in the form of a magnesium ion neutralized ethylene/(meth)acrylic acid copolymer. The blend has a Shore D hardness of 44-60. The ball is minimized in restitution loss and has an increased initial velocity, spin receptivity, good hitting feel, and scuff resistance.Type: GrantFiled: June 12, 1997Date of Patent: October 10, 2000Assignee: Bridgestone Sports Co., Ltd.Inventors: Yasushi Ichikawa, Yoshinori Egashira, Shunichi Kashiwagi
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Patent number: 6130295Abstract: A golf ball having excellent rebound characteristics, excellent shot feel and good controllability at approach shot which contains a core and a cover formed on the core, wherein the cover is formed from a base resin mainly containing the mixture of an ionomer and polybutadiene having trans-1,4-structure of at least 60%.Type: GrantFiled: June 26, 1997Date of Patent: October 10, 2000Assignee: Sumitomo Rubber Industries, Ltd.Inventor: Masatoshi Yokota
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Patent number: 6114455Abstract: The present invention is directed to golf balls comprising at least a cover layer and a core layer, wherein at least one layer is a blend, the ionomeric component of which comprises from about 97 wt. % to about 35 wt. % of at least one high acid ionomer resin and from about 3 wt. % to <15 wt. % of at least one very low modulus ionomer (VLMI) resin. Up to about 70 wt. % of at least one standard ionomer resin may be included in the blend, if desired. The copolymer ionomers of the invention include E/X/Y copolymers where E is ethylene, X is a softening comonomer present in from 0 wt. % to about 50 wt. % of the polymer, and Y is acrylic or methacrylic acid present in from about 5 wt. % to about 35 wt. % of the polymer, wherein the acid moiety is neutralized from about 1% to about 90% to form an ionomer by at least one cation. In the ethylenic high acid copolymer ionomer, Y is present from 16.5 wt. % to about 35 wt.Type: GrantFiled: May 18, 1998Date of Patent: September 5, 2000Assignee: Acushnet CompanyInventor: Jeffrey L. Dalton
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Patent number: 6107454Abstract: Melt processed linear polyethylenes are shown to exhibit improved processability through the addition of certain surfactants. Among the melt processing parameters improved are reduced head pressure, reduced torque, reduced motor load, reduced or eliminated melt fracture, or combinations of these parameters. The surfactants can be chosen from a non-aromatic alkyl sulfonate or sulfate salt wherein a cation of the salt is selected from the group consisting of Na, K, Li, and other alkali cations and a quaternary ammonium cations, said surfactant being essentially free of halogens.Type: GrantFiled: August 6, 1997Date of Patent: August 22, 2000Assignee: Exxon Chemical Patents, Inc.Inventors: Joel Edward Schmieg, Thomas Craig Erderly, Dennis George Peiffer, James Joseph Chludzinski
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Patent number: 6063869Abstract: In a golf ball comprising a core and a cover, the cover is predominantly constructed of a blend of (A) a coordination ionic copolymer of a divalent metal ion crosslinked form of an ethylene/unsaturated carboxylic acid/unsaturated carboxylate terpolymer and an amine compound and (B) a metal ion crosslinked form of an ethylene/unsaturated carboxylic acid copolymer. The ball has improved restitution and feel.Type: GrantFiled: November 12, 1997Date of Patent: May 16, 2000Assignee: Bridgestone Sports Co., Ltd.Inventors: Shunichi Kashiwagi, Yasushi Ichikawa, Rinya Takesue
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Patent number: 6051654Abstract: A solid golf ball includes a cover which is mainly formed from a resin blend of (a) 50-90% by weight of a salt of an ethylene-unsaturated carboxylic acid copolymer having an unsaturated carboxylic acid content of 10 to 20% by weight wherein at least 20 mol % of the carboxyl group is neutralized with a metal ion and (b) 50-10% by weight of an ethylene-unsaturated carboxylate-unsaturated carboxylic acid terpolymer having an unsaturated carboxylate content of 12 to 45% by weight and an unsaturated carboxylic acid content of 5.5 to 10% by weight. The cover has a hardness of 60 to 80 on JIS C hardness scale. The golf ball has many advantages including a pleasant feel, ease of spin, ease of control, high repulsion and resistance to peeling.Type: GrantFiled: March 25, 1997Date of Patent: April 18, 2000Assignee: Bridgestone Sports Co., Ltd.Inventors: Yoshinori Egashira, Hideo Watanabe, Yasushi Ichikawa
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Patent number: 5994472Abstract: In a golf ball comprising a core and a cover, the cover is mainly composed of a resin consisting of a first ionomer in the form of a sodium neutralized ethylene/methacrylic acid/acrylate terpolymer having a flexural modulus of 1,000 to 15,000 psi and a second ionomer in the form of a magnesium neutralized ethylene/methacrylic acid copolymer having a flexural modulus of 20,000 to 48,000 psi. The blend has a Shore C hardness of 65 to 77. The ball has a soft feel, satisfactory spin rate, improved scuff resistance upon iron shots, and durability against top hitting with an excellent compatibility in cover.Type: GrantFiled: November 13, 1997Date of Patent: November 30, 1999Assignee: Bridgestone Sports Co., Ltd.Inventors: Yoshinori Egashira, Yasushi Ichikawa, Shunichi Kashiwagi
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Patent number: 5994448Abstract: This invention relates to a tire tread compound that can be used in manufacturing tires having outstanding traction characteristics without compromising treadwear and rolling resistance. The tire tread compounds of this invention are made utilizing an isoprene-butadiene rubber having a high glass transition temperature and having SnR.sub.3 end groups, wherein R represents an alkyl group, such as a tertiary-butyl group. These isoprene-butadiene rubbers are made by reacting an isoprene-butadiene rubber having a glass transition temperature which is within the range of about -50.degree. C. to about 0.degree. C. with a tin compound of the formula SnR.sub.3 X, wherein R represents an alkyl group and wherein X represents a halogen. This invention more specifically discloses a tire tread rubber composition which is comprised of (1) about 60 phr to about 95 phr of an isoprene-butadiene rubber having a glass transition temperature which is within the range of about -50.degree. C. to about 0.degree. C.Type: GrantFiled: August 12, 1998Date of Patent: November 30, 1999Assignee: The Goodyear Tire & Rubber CompanyInventors: Edward John Blok, Paul Harry Sandstrom, Wen-Liang Hsu, Adel Farhan Halasa
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Patent number: 5965669Abstract: A multi-layer golf ball comprising a core, a cover layer and a mantle layer disposed between the core and the cover. The cover layer consists essentially of at least a first and a second ionomer resin. The first resin is a copolymer of 16 to 35% by weight of an alpha, beta-unsaturated carboxylic acid and 84 to 65% by weight of an olefin, wherein about 10 to about 90% of the carboxyl groups of the copolymer are neutralized with a metal ion. The second resin is a terpolymer of 9 to 12% by weight of an alpha, beta-unsaturated carboxylic acid, 1 to 50% by weight n-alkyl acrylate or methacrylate and 38 to 90% by weight of an olefin, wherein about 10 to about 90% of the carboxyl groups of the terpolymer are neutralized with a metal ion. The mantle layer comprises a thermoplastic material, said thermoplastic material consisting essentially of polyetherester block copolymer.Type: GrantFiled: November 17, 1997Date of Patent: October 12, 1999Assignee: Acushnet CompanyInventors: Christopher Cavallaro, Murali Rajagopalan, Herbert C. Boehm, Kevin M. Harris, Samuel A. Pasqua, Jr.
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Patent number: 5962554Abstract: Polymers composed of at least >80% by weight of monomers of the formula ##STR1## where R.sup.1, R.sup.2 and R.sup.3 are each C.sub.1 -C.sub.3 -alkyl,R.sup.4 is C.sub.1 -C.sub.5 -alkyl andX is 0 or NH,are used as assistants in the drying of aqueous polymer dispersions and, in the case of a weight average relative molecular weight of from 5000 to 35,000, additionally as protective colloid for the preparation of aqueous polymer dispersions by the free radical aqueous emulsion polymerization method.Type: GrantFiled: October 18, 1996Date of Patent: October 5, 1999Assignee: BASF AktiengesellschaftInventors: Joachim Pakusch, Bernhard Schuler, Walter Machtle, Roland Baumstark
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Patent number: 5962590Abstract: The present invention provides a golf ball having excellent controllability at the time of approach and excellent shot feel, wherein spin is easily put on. A cover of the golf ball is composed of a mixture of specific three ionomer resins (1), (2) and (3), wherein the total amount of the resin (1) and resin (2) is not less than 85% by weight and the amount of the resin (3) is not more than 15% by weight in the mixture as a main component, and wherein the amount of the resin (1) is 30 to 82% by weight and the amount of the resin (2) is 3 to 55% by weight in the total of the resin (1) and resin (2) and a stiffness of the cover composition is 1,000 to 2,000 kg/cm.sup.2.Type: GrantFiled: February 9, 1996Date of Patent: October 5, 1999Assignee: Sumitomo Rubber Industries, Ltd.Inventors: Seiichiro Endo, Masatoshi Yokota
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Patent number: 5952428Abstract: The present invention provides a golf ball having excellent shot feel, controllability and durability as well as satisfactory flight performance. A cover of the golf ball is composed of a mixture of specific three resins (1), (2) and (3), wherein the total amount of the resin (1) and resin (2) is 60 to 83% by weight and the amount of the resin (3) is 17 to 40% by weight in the mixture as a main component, and wherein the amount of the resin (1) is 33 to 80% by weight and the amount of the resin (2) is 3 to 50% by weight in the total of the resin (1) and resin (2) and a stiffness of the cover composition is 1000 to 2000 kg/cm.sup.2.Type: GrantFiled: October 6, 1997Date of Patent: September 14, 1999Assignee: Sumitomo Rubber Industries, Ltd.Inventors: Masatoshi Yokota, Seiichiro Endo
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Patent number: 5929170Abstract: Disclosed is a golf ball comprising a core covered with a cover, wherein the cover is formed of a resin composition containing, as a major component, a mixture composed of (A) an ionomer resin of lithium salt of ethylene-(meta)acrylic acid copolymer, (B) an ionomer resin of bivalent metal salt of ethylene-(meta)acrylic acid ester-(meta)acrylic acid terpolymer, and (C) a partially saponified resin of ethylene-(meta)acrylic acid ester copolymer.Type: GrantFiled: September 2, 1997Date of Patent: July 27, 1999Assignee: Kasco CorporationInventors: Hiroshi Kawabata, Yasuhiro Fukui, Taro Izawa
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Patent number: 5902855Abstract: Disclosed herein is a golf ball having a scuff-resistant, soft cover formed from more than 90 wt. % of one or more acrylate ester-containing ionomeric resins. The acrylate ester-containing ionomeric resins preferably are terpolymers. The golf ball has good durability and a high spin rate. A method of making the golf ball also is disclosed.Type: GrantFiled: October 6, 1997Date of Patent: May 11, 1999Assignee: Lisco, Inc.Inventor: Michael J. Sullivan
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Patent number: 5898050Abstract: A polyolefine composition for preparing a polyolefine film having high heat-sealing properties. The polyolefine composition includes from about 2 percent to about 35 percent by weight of metallocene polyethylene or its copolymer and from about 65 percent to about 98 percent by weight of polypropylene or its copolymer. The metallocene polyethylene or its copolymer has a long chain branching index between 0 and 20/1000 carbons, a density between 0.880 g/cm.sup.3 and 0.915 g/cm.sup.3, a melting index between 0.5 g/10 min and 30 g/10 min, and a molecular weight distribution of less than 3.5. The polyolefine composition is fabricated into films by the blown film method or casting laminated method.Type: GrantFiled: May 30, 1997Date of Patent: April 27, 1999Assignee: Industrial Technology Research InstituteInventors: Hsi-Hsin Shih, Chien-Tsung Wu, Chang-Ming Wong, Chi-Chou Huang
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Patent number: 5889116Abstract: A photosensitive composition is provided, which comprises (A) 20-65 wt. parts of an elastomer, (B) 35-80 wt. parts of a hydrophilic copolymer consisting essentially of, based on the weight of the copolymer, (1) 1-30 wt. % of units of a phosphorus-, boron- or sulfur-containing monoethylenically unsaturated monomer, (2) 0.5-25 wt. % of units of a phosphorus-, boron- or sulfur-containing diethylenically unsaturated monomer, (3) 40-90 wt. % of units of a conjugated diene monomer, and (4) 0-58.5 wt. % of units of other copolymerizable monomer; the total amount of the elastomer (A) and the hydrophilic copolymer (B) being 100 wt. parts, (C) 5-100 wt. parts of a photopolymerizable ethylenically unsaturated monomer, and (D) 0.1-10 wt. parts of a photopolymerization initiator. The photosensitive composition is useful for the preparation of a flexographic printing plate.Type: GrantFiled: December 5, 1996Date of Patent: March 30, 1999Assignee: Nippon Zeon Co., Ltd.Inventors: Takao Suzuki, Atsuhiro Kanzaki
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Patent number: 5885708Abstract: A latex antistatic adhesive comprising an emulsion of polymerized microdrops dispersed in an aqueous medium, having an average diameter less than about 0.1 .mu.m, and a glass transition temperature (Tg) of from about -120.degree. C. to about 25.degree. C., wherein the polymerized microdrops are derived from emulsion microdrops of reactive monomers, said adhesive including at least one (meth)acrylic monomer, at least one polar monomer, at least one reactive oligomer and at least 1% of a lithium salt.Type: GrantFiled: February 14, 1997Date of Patent: March 23, 1999Assignee: Minnesota Mining and Manufacturing CompanyInventors: Ying-Yuh Lu, Steven D. Yau
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Patent number: 5849834Abstract: A W/O type emulsified composition comprising an oil phase containing ethyl cellulose and a solvent capable of swelling ethyl cellulose and a water phase containing a water soluble polymer(s) emulsified as a water-in-oil type (W/O type) emulsion. A W/O type emulsified composition comprising an oil phase containing ethyl cellulose and a solvent capable of swelling ethyl cellulose and a water phase containing a polyion complex comprising cationized cellulose and sodium hyaluronate emulsified as a water-in-oil type (W/O type) emulsion.Type: GrantFiled: March 10, 1997Date of Patent: December 15, 1998Assignee: Shiseido Co., Ltd.Inventors: Fumiaki Matsuzaki, Toshio Yanaki, Michihiro Yamaguchi
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Patent number: 5756583Abstract: A golf ball cover is formed of a composition comprising (a) 70-95% by weight of a sodium or zinc salt of an ethylene-unsaturated carboxylic acid-unsaturated carboxylate terpolymer or a mixture thereof and (b) 30-5% by weight of a sodium or zinc salt of an ethylene-unsaturated carboxylic acid copolymer, an ethylene-unsaturated carboxylic acid-unsaturated carboxylate terpolymer or a mixture thereof, having an M.F.R. of at least 4, the composition curing into a product having a hardness of 55-80 on JIS C scale and a tensile stress at 10% distortion of 40-140 kg/cm.sup.2. The composition is easy to mold and allows for manufacture of a golf ball having improved spin properties and resistant to impact by iron and other clubs.Type: GrantFiled: February 3, 1997Date of Patent: May 26, 1998Assignee: Bridgestone Sports Co., Ltd.Inventors: Yoshinori Egashira, Hisashi Yamagishi, Hideo Watanabe, Yasushi Ichikawa
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Patent number: 5753758Abstract: Floor finishing composition which, when applied as a coating to a floor, provides a film having improved durability, toughness and gloss. The composition comprises certain acrylic copolymers and a stilbene compound.Type: GrantFiled: February 5, 1997Date of Patent: May 19, 1998Inventor: Frank Marchese
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Patent number: 5714546Abstract: A golf ball cover is formed of a composition comprising (a) 70-95% by weight of a sodium or zinc salt of an ethylene-unsaturated carboxylic acid-unsaturated carboxylate terpolymer or a mixture thereof and (b) 30-5% by weight of a sodium or zinc salt of an ethylene-unsaturated carboxylic acid copolymer, an ethylene-unsaturated carboxylic acid-unsaturated carboxylate terpolymer or a mixture thereof, having an M.F.R. of at least 4, the composition curing into a product having a hardness of 55-80 on JIS C scale and a tensile stress at 10% distortion of 40-140 kg/cm.sup.2. The composition is easy to mold and allows for manufacture of a golf ball having improved spin properties and resistant to impact by iron and other clubs.Type: GrantFiled: January 31, 1995Date of Patent: February 3, 1998Assignee: Bridgestone Sports Co., Ltd.Inventors: Yoshinori Egashira, Hisashi Yamagishi, Hideo Watanabe, Yasushi Ichikawa
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Patent number: 5691418Abstract: Novel, soft, low modulus ethylene copolymer ionomer compositions containing an acrylate softening monomer, neutralized with magnesium or lithium ions possess a higher level of resilience at a given level of PGA Compressibility than known ionomers. The advantage is maintained in certain blend compositions with harder ionomers for blends having a neat-sphere PGA Compression below about 155. Both unblended and blended compositions will be useful as golf balls and components of golf balls, for one-piece balls, centers, cores and covers of golf balls.Type: GrantFiled: June 30, 1995Date of Patent: November 25, 1997Assignee: E. I. Du Pont de Nemours and CompanyInventors: John Francis Hagman, Robert Joseph Statz
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Patent number: 5679745Abstract: The present invention provides a golf ball which does not cause poor impact resilience but provides long distance carry as well as good hit feeling, and keeps controllability nearly similar to balata covered thread wound golf balls. The present invention provides a golf ball which comprises a core and a cover for covering the core, wherein the cover comprises, as base component, a mixture of a sulfonate-type ionomer of which a polymer chain contains an elastomeric portion having rubber resilience and has a sulfonic group neutralized by a metallic ion, and a carboxylate type ionomer which is a copolymer of at least .alpha.-olefin and .alpha.,.beta.-unsaturated carboxylic acid of which a carboxyl group is neutralized by a metallic ion.Type: GrantFiled: September 6, 1995Date of Patent: October 21, 1997Assignee: Sumitomo Rubber Industries, Ltd.Inventors: Akihiko Hamada, Yoshikazu Yabuki
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Patent number: 5663235Abstract: Disclosed is a golf ball having excellent shot feel, control properties as well as satisfactory flight performance and cut resistance. The golf ball has a core and a cover covering the core wherein the cover has a stiffness modulus of 100 to 250 MPa and comprises a base resin and an additive, and the base resin mainly contains a mixture of specific resins (A) and (B) in a weight ratio of 60:40 to 90:10(A) is an ionomer resin(B) is a styrene/carboxylic and copolymer.Type: GrantFiled: May 29, 1996Date of Patent: September 2, 1997Assignee: Sumitomo Rubber Industries, Ltd.Inventor: Hiroaki Tanaka
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Patent number: 5656695Abstract: A scratch resistant golf ball cover comprising a blend of:(I) an acrylic ionomer or mixture with a methacrylic ionomer having a stiffness modulus of 3000-5000 Kg/cm.sup.2(II) a methacrylic ionomer having a stiffness modulus of 900-2000 Kg/cm.sup.2 neutralized with zinc.Type: GrantFiled: December 28, 1994Date of Patent: August 12, 1997Assignee: Sumitomo Rubber Industries, Ltd.Inventors: Seiichiro Endo, Kuniyasu Horiuchi
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Patent number: 5631324Abstract: The invention is directed to a golf ball comprising a core and a cover, wherein the cover comprises a blend of at least one olefinic ionomer and a terpolymer, said terpolymer comprising a first monomeric component comprising an olefinic monomer having from about 2 to about 8 carbon atoms, a second monomeric component selected from unsaturated acrylate class ester having from about 2 to about 18 carbon atoms; and, a third monomeric component comprising at least one monomer selected from the group consisting of carbon monoxide, anhydride monomers and monomers having a structure according to the following formula ##STR1## wherein R.sub.1 is hydrogen or a linear chain or branched chain alkyl group of from about 1 to about 18 carbon atoms and R.sub.2 is selected from the group consisting of linear chain or branched chain alkyl, substituted or unsubstituted carbocyclic and substituted aryl groups containing an epoxy, i.e., glycidyl moiety.Type: GrantFiled: June 7, 1995Date of Patent: May 20, 1997Assignees: Acushnet Company, E. I. Du Pont de Nemours & Co.Inventors: Murali Rajagopalan, Robert J. Statz
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Patent number: 5625006Abstract: Adhesive beads comprise a core comprising a pressure sensitive adhesive material and an essentially discontinuous organic polymer disposed about the core. The beads are free-flowing at room temperature. Upon application of heat and/or pressure the core is activated and blends with the coating to provide a pressure sensitive adhesive.Type: GrantFiled: January 24, 1996Date of Patent: April 29, 1997Assignee: Minnesota Mining and Manufacturing CompanyInventors: Joseph P. Callahan, Jr., Rudyard M. Enanoza, Mark D. Weigel
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Patent number: 5599877Abstract: Ionomer compositions which have improved optical properties are disclosed. These compositions comprise ionomers which can be represented as the polymerization product of alpha-olefins having from two to eight carbon atoms, esters of alpha, beta-ethylenically-unsaturated carboxylic acids, metal salts of acrylic and methacrylic acid, and optional alpha, beta-ethylenically-unsaturated comonomers which impart some desired polymer property or properties, such as acidity and/or solvent resistivity. Also disclosed are methods of making these ionomer compositions in a reactive extruder and treating the compositions with acid to impart acidity to the compositions or to only the surface of the compositions.Type: GrantFiled: June 5, 1995Date of Patent: February 4, 1997Assignee: Chevron Chemical CompanyInventors: James H. Wang, David Rosendale, Victor P. Kurkov, Leslie P. Theard, Ta Y. Ching, Lewis R. Compton, Tor H. G. Palmgren, Mitchell P. Eichelberger
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Patent number: 5597869Abstract: Ionomer compositions which have improved optical properties are disclosed. These compositions comprise ionomers which can be represented as the polymerization product of alpha-olefins having from two to eight carbon atoms, esters of alpha, beta-ethylenically-unsaturated carboxylic acids, metal salts of acrylic and methacrylic acid, and optional alpha, beta-ethylenically-unsaturated comonomers which impart some desired polymer property or properties, such as acidity and/or solvent resistivity. Also disclosed are methods of making these ionomer compositions in a reactive extruder and treating the compositions with acid to impart acidity to the compositions or to only the surface of the compositions.Type: GrantFiled: June 5, 1995Date of Patent: January 28, 1997Assignee: Chevron Chemical CompanyInventors: James H. Wang, David Rosendale, Victor P. Kurkov, Leslie P. Theard, Ta Y. Ching, Lewis R. Compton, Tor H. G. Palmgren, Mitchell P. Eichelberger
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Patent number: 5591803Abstract: The present invention is directed to golf ball cover compositions containing blends of high or low carboxylic acid based copolymers and ethylene copolymers such as ethylene alkyl acrylates. The carboxylic acid groups of the blends are neutralized with metal cations. Golf balls produced with the cover molded thereon exhibit desired properties of distance and high coefficient of restitution without substantially sacrificing and/or improving characteristics like playability and durability when compared to existing covers comprising ionomeric resin blends.Type: GrantFiled: October 31, 1995Date of Patent: January 7, 1997Assignee: Lisco, Inc.Inventors: Michael J. Sullivan, Robert A. Weiss
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Patent number: 5580927Abstract: New Ionomer compositions which have improved moldability and improved high temperature behavior are based on ionomer polymerized at normal pressures but lower than normal temperatures. The compositions may be blends with standard ionomer, particularly if the low-temperature-prepared ionomer is prepared at very low temperatures which reduces productivity compared with standard ionomer, or useful alone when prepared at intermediate temperatures.Type: GrantFiled: September 29, 1995Date of Patent: December 3, 1996Assignee: E. I. Du Pont de Nemours and CompanyInventors: Richard T. Chou, Robert J. Statz
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Patent number: 5569712Abstract: Ionomer compositions which have improved optical properties are disclosed. These compositions comprise ionomers which can be represented as the polymerization product of alpha-olefins having from two to eight carbon atoms, esters of alpha, beta-ethylenically-unsaturated carboxylic acids, metal salts of acrylic and methacrylic acid, and optional alpha, beta-ethylenically-unsaturated comonomers which impart some desired polymer property or properties, such as acidity and/or solvent resistivity. Also disclosed are methods of making these ionomer compositions in a reactive extruder and treating the compositions with acid to impart acidity to the compositions or to only the surface of the compositions.Type: GrantFiled: June 5, 1995Date of Patent: October 29, 1996Assignee: Chevron Chemical CompanyInventors: James E. Wang, David Rosendale, Victor P. Kurkov, Leslie P. Theard, Ta Y. Ching, Lewis R. Compton, Tor H. G. Palmgren, Mitchell P. Eichelberger
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Patent number: 5542677Abstract: The present invention is directed to golf ball cover compositions containing blends of high or low carboxylic acid based copolymers and ethylene copolymers such as ethylene alkyl acrylates. The carboxylic acid groups of the blends are neutralized with metal cations. Golf balls produced with the cover molded thereon exhibit desired properties of distance and high coefficient of restitution without substantially sacrificing and/or improving characteristics like playability and durability when compared to existing covers comprising ionomeric resin blends.Type: GrantFiled: December 20, 1994Date of Patent: August 6, 1996Assignee: Lisco, Inc.Inventors: Michael J. Sullivan, Robert A. Weiss
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Patent number: 5306746Abstract: The present invention relates to a resin composition which selectively absorbs light of the wavelength band in the vicinity of wavelength 580 nm, as well as to the optical products to be formed from this resin composition. The beads possessing light selective function are formed from a transparent polymer which contains a neodymium compound: these beads are then dispersed in a transparent resin composition. Comparing to the case when the neodymium compound is directly dispersed in the resin composition, a large amount of neodymium compound can be added to the resin composition without decreasing the mechanical and thermal properties of the resin composition.Type: GrantFiled: March 10, 1992Date of Patent: April 26, 1994Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Kozo Ida, Tetsuya Suda
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Patent number: 5252667Abstract: Poly(vinyl chloride) exhibits a useful combination of acceptable flow for injection molding, improved processability, and acceptable heat distortion resistance and toughness when modified with a multi-stage polymer having as one stage an alkyl (meth)acrylate polymer or copolymer containing a low level of a copolymerized unsaturated acid partly to completely in the form of its alkali metal salt. In preferred compositions, the melt viscosity under injection molding conditions of the blend will be equal to or less than that of the PVC alone.Type: GrantFiled: December 7, 1992Date of Patent: October 12, 1993Assignee: Rohm and Haas CompanyInventor: Hsing-Yeh Parker
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Patent number: 5229209Abstract: A process for the manufacture of core/shell polymer particles comprises forming a core particle containing acid functionality, a first shell around said core of a copolymer of a nonionic monoethylenically unsaturated aromatic monomer and a copolymerisable polar monomer in an amount of at least 15% by weight of the copolymer and having a solubility in water at 20.degree. C. of at least 1% by weight and a second shell around said first shell of a polymer or copolymer of a nonionic monomer having a solubility in water at 20.degree. C. of less than 1% by weight and swelling the particle with a non-volatile alkali to generate one or more vesicles.Preferably each shell contains a polymer or copolymer of styrene.Type: GrantFiled: March 21, 1991Date of Patent: July 20, 1993Assignee: Tioxide Group PLCInventors: Hrire Gharapetian, Gerald K. Chip, Alfred Rudin
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Patent number: 5202381Abstract: This invention relates to improved poly(vinyl chloride) compositions which contain ionomeric additive polymers, and to a process for preparing such compositions.Type: GrantFiled: April 4, 1990Date of Patent: April 13, 1993Assignee: Rohm and Haas CompanyInventor: Hsing-Yeh Parker
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Patent number: 5198499Abstract: Cross-linked conductive polymer, coating compositions and light sensitive elements containing at least one antistat layer where the cross-linked polymer is a copolymer of a vinylbenzene sufonic acid and an ethylenically unsaturated monomer containing at least one primary hydroxl group cross-linked with a methoxyalkylmelamine.Type: GrantFiled: November 18, 1991Date of Patent: March 30, 1993Assignee: Eastman Kodak CompanyInventors: Charles C. Anderson, Raymond T. Jones
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Patent number: 5194498Abstract: This invention relates to poly(vinyl chloride) injection molding compositions which contain novel additive polymers which modify the rheology characteristics of the composition, and to the novel additive polymers themselves.Type: GrantFiled: September 9, 1991Date of Patent: March 16, 1993Assignee: Rohm and Haas CompanyInventors: Janis C. Stevenson, Hsing-Yeh Parker
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Patent number: 5112902Abstract: A process for preparing particles of a high water-absorbent resin which comprises mixing a powder of a high water-absorbent resin having a water content of 10 to 60% by weight with a powder of water-soluble high molecular weight compound and drying the mixture. The obtained particles according to the present invention are suitable for use of sanitary goods, water-retaining agents or soil conditioner in the fields of agriculture and horticulture and other various uses.Type: GrantFiled: May 17, 1990Date of Patent: May 12, 1992Assignee: Nippon Gohsei Kagaku Kogyo Kabushiki KaishaInventors: Tetsuo Moriya, Susumu Kondo, Shinji Sanuki
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Patent number: 5079340Abstract: A thermoplastic polyketone polymer composition having thermoset properties, processes for its production, and articles made thereof are disclosed. This composition also having improved continuous use temperature and thermal stability properties can be produced by crosslinking, at elevated temperatures, a thermoplastic polyketone resin with a suitable basic material. Optionally, suitable lubricants or fillers can also be added to further improve the properties of the resulting composition.Type: GrantFiled: April 30, 1991Date of Patent: January 7, 1992Assignee: Shell Oil CompanyInventors: Andrew B. Auerbach, Stephen J. Hanley
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Patent number: 5064903Abstract: The present invention relates to elastomeric reinforced thermoplastic blend compositions which exhibit improved mechanical properties, wherein the thermoplastic blend compositions comprise a blend of a metal neutralized copolymer of ethylene and methacrylate with about 1 to about 40 weight percent of a metal neutralized EPDM terpolymer.Type: GrantFiled: August 8, 1990Date of Patent: November 12, 1991Assignee: Exxon Research and Engineering CompanyInventor: Dennis G. Peiffer
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Patent number: 5061758Abstract: An unsaturated elastomeric, asymmetrically coupled block copolymer of the formula: (A).sub.n -X-(B).sub.m, wherein block A is a block of polybutadiene having a content of uniformly distributed vinyl groups ranging from 8 to 60% and block (B) is a homopolymer of isoprene or a copolymer of at least 10% isoprene with 0 to 60% butadiene and up to 45% styrene, the copolymer having a vinyl unit content of 75 to 90%, X is a radical of a coupling agent and (m-n).gtoreq.0 and (m+n) ranges from 3 to 25.Type: GrantFiled: October 5, 1989Date of Patent: October 29, 1991Assignee: Huels AktiengesellschaftInventors: Walter Hellermann, Christoph Herrmann, Karl-Heinz Nordsiek, Jurgen Wolpers, Hans-Bernd Fuchs
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Patent number: 5000459Abstract: The golf ball cover is made from about 90 to about 50 parts by weight of a lithium ionomer resin and about 10 to about 40 parts by weight sodium ionomer resin. The cover has excellent durability.Type: GrantFiled: July 5, 1989Date of Patent: March 19, 1991Assignee: Acushnet CompanyInventor: Sharon R. Isaac
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Patent number: 4977211Abstract: A water-absorptive resin composition which comprises (A) 5 to 95% by weight of a water-absorptive resin and 95 to 5% by weight of (B) a polyolefin resin and (C) an ethylene/.alpha.-olefin copolymer rubber, based on the total contents of said components (A), (B) and (C), wherein the content of said component (C) amounts to 20 to 80% by weight based on the total contents of said components (B) and (C) is disclosed. This water-absorptive resin composition is moldable and has an excellent water absorption property and an excellent water-absorptive resin retention characteristic after absorbing water.Type: GrantFiled: July 29, 1988Date of Patent: December 11, 1990Assignee: Mitsubishi Pertochemical Co., Ltd.Inventors: Shuhei Doi, Shunichi Ohnishi
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Patent number: 4956414Abstract: Ionically crosslinked ethylene coolymers prepared by neutralizing the corresponding ethylene copolymers with the addition of an ionomer to a feed zone of an extruder of an ethylene high pressure polymerization system are used for film production, for cable sheathing and as adhesion promoters.Type: GrantFiled: June 9, 1989Date of Patent: September 11, 1990Assignee: BASF AktiengesellschaftInventors: Thomas Muehlenbernd, Norbert Hasenbein
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Patent number: 4935164Abstract: Substantially monomer-free, electrically conductive organic polymers and/or organic conductors are dissolved or dispersed in a melt or solution of a thermoplastic matrix polymer or polymer mixture partially compatible therewith and having a solubility parameter >8.6 (cal/cm.sup.3).sup.1/2, in order to obtain mouldable polymer blends. The latter are suitable for producing moulded articles, particularly for electrical conductors, semiconductors or photoconductors. A suitable apparatus for producing the polymer blends comprises an extruder or kneader, through whose barrel one or more sonotrodes project into the transformation zone.Type: GrantFiled: June 13, 1985Date of Patent: June 19, 1990Assignee: Zipperling Kessler & Co. (GmbH & Co.)Inventors: Bernhard M. Wessling, Harald K. Volk
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Patent number: 4898911Abstract: A melt-blended resin composition useful as a modifier for improving the impact resistance of thermoplastic resins which comprises (a) a polymer containing at least one epoxy group per molecule and having a modulus of elasticity in bending of at most 10.sup.4 kg/cm.sup.2, e.g. an .alpha.-olefin/glycidyl ester or ether copolymer, and (b) a copolymer of an .alpha.-olefin and an .alpha.,.beta.-unsaturated carboxylic acid wherein at least 5% by mole of the carboxyl groups are neutralized with an alkali metal.Type: GrantFiled: December 24, 1987Date of Patent: February 6, 1990Assignee: Kanegafuchi Kagaku Kogyo KabushikiInventors: Shunitsu Miyashita, Kenji Mogami
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Patent number: 4871810Abstract: Partially grafted flexible thermoplastic compositions formed by melt blending under high shear, a thermoplastic material which does not contain 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.Type: GrantFiled: November 13, 1987Date of Patent: October 3, 1989Assignee: E. I. Du Pont de Nemours and CompanyInventor: Robert P. Saltman
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Patent number: 4857622Abstract: An agent to be used to treat water and aqueous media contacting heat transfer surfaces for inhibiting the build-up of scale and settlement of dissolved alkaline earth materials in water and aqueous media, which agent consists of acrylic and methacrylic acid polymers and/or copolymers and is characterized in that it comprises the fraction of said polymers and/or copolymers having a symmetrical, single-mode molecular weight distribution centered on an average molecular weight of about 800, in which 100% of said molecular weights are individually lower than 1,200 and at least 90% of same are in the 400-1,000 range.Type: GrantFiled: September 30, 1987Date of Patent: August 15, 1989Assignee: Coatex S.A.Inventors: Hubert Bousquet, Georges Ravet, Jacky Rousset