Solid Polymer Derived From Ethylenically Unsaturated Hydrocarbon Patents (Class 525/184)
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Publication number: 20120136100Abstract: Provided is a thermoplastic elastomer composition, which includes a halogenated isoolefin/para-alkylstyrene copolymer rubber dispersed in a polyamide resin in order to improve the fatigue durability of a polyamide resin, while maintaining high flowability of the polyamide. A thermoplastic elastomer composition comprising a continuous phase composed of a modified polyamide resin (A) and a dispersed phase composed of a halogenated isoolefin/para-alkylstyrene copolymer rubber (B) is provided. The modified polyamide resin (A) is a resin obtained by melt-kneading 100 parts by weight of a polyamide resin (C) with not less than 0.05 part by weight and less than 3 parts by weight a compound (D), such as a monofunctional epoxy compound, capable of binding to a terminal amino group of the polyamide resin at a temperature not lower than the melting point of the polyamide resin (C). The composition can be used as an inner liner of a pneumatic tire.Type: ApplicationFiled: February 8, 2012Publication date: May 31, 2012Applicant: The Yokohama Rubber Co., Ltd.Inventors: Yuichi Hara, Naoyuki Morooka
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Patent number: 8133966Abstract: Oxymethylene copolymers having a high proportion of terminal alkyl ether groups and having terminal hydroxyalkylene groups are described. These polymers are distinguished by high thermal stability and high hot water resistance.Type: GrantFiled: April 14, 2009Date of Patent: March 13, 2012Assignee: Ticona GmbHInventors: Michael Haubs, Michael Hoffmockel, Jürgen Lingnau, Robert Gronner, Michael Gene Yearwood
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Publication number: 20120047634Abstract: Embodiments of the present disclosure include helmet liners, helmets, helmets with deflective structures, helmets with thermochromic features, and methods of making helmet liners, helmets, helmets with deflective structures, and helmets with thermochromic features.Type: ApplicationFiled: May 14, 2010Publication date: March 1, 2012Inventor: Uday Vaidya
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Patent number: 8114940Abstract: The present invention relates to a phenolic hydroxy group-containing rubber-modified polyamide resin which has, in the molecule, a phenolic hydroxy group-containing aromatic polyamide segment having a structure represented by the following formula (A) (wherein, m and n are average values and Ar represents a divalent aromatic group) and a butadiene (co)polymer segment selected from the following formula (B-1) or (B-2), —(CH2—CH?CH—CH2)X—??(B-1) —(CH2—CH?CH—CH2)Y—(CH2—CH(CN))Z—??(B-2) (wherein, each of x, y and z is an average value and 0.01?z/(y+z)?0.13, x represents a positive number of 5 to 200, and also y+z is a positive number of 10 to 200), and a resin composition containing said resin, in particular an epoxy resin composition; a cured product of said epoxy resin composition is excellent in flexibility, heat resistance and electrical properties especially at high temperature and high humidity.Type: GrantFiled: October 26, 2006Date of Patent: February 14, 2012Assignee: Nippon Kayaku Kabushiki KaishaInventors: Kazunori Ishikawa, Makoto Uchida, Shigeru Moteki
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Publication number: 20110315199Abstract: One subject of the invention is the use of ? film as a protective backsheet in a photovoltaic module, said film comprising at least one layer of a composition containing a polyamide-grafted polymer, this polyamide-grafted polymer comprising a polyolefin backbone containing a residue of at least one unsaturated monomer (X) and at least one polyamide graft, in which: • the polyamide graft is attached to the polyolefin backbone by the residue of the unsaturated monomer (X) that comprises a functional group capable of reacting via a condensation reaction with a polyamide having at least one amine end group and/or at least one carboxylic acid end group; • the residue of the unsaturated monomer (X) is attached to the backbone by grafting or copolymerization; said polyamide-grafted polymer comprising, relative to its total weight: • from 40 to 95% by weight of the polyolefin backbone comprising the unsaturated monomer (X); and • from 5 to 60% by weight of polyamide grafts, and the melting point or glass transition tType: ApplicationFiled: December 15, 2009Publication date: December 29, 2011Applicants: SOLUTIA SOLAR GMBH, ARKEMA FRANCEInventors: Marc Vogt, Dominique Jousset, Stéphane Bizet, Jean-Jacques Flat
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Publication number: 20110305863Abstract: Provided is a thermoplastic resin composition in which a modified rubber excellent in low temperature resistance is dispersedly added in a polyamide resin matrix to improve the low temperature resistance (cyclic fatigue resistance) of the polyamide resin, the composition maintaining its fluidity even at a high content of modified rubber, thus allowing film formation, and exhibiting excellent low temperature resistance. The thermoplastic resin composition includes a polyamide resin (A) and a modified rubber (B) having an acid anhydride group or an epoxy group and is characterized in that the modified rubber (B) having an acid anhydride group or an epoxy group is modified with a hydrogen bonding compound (C) having a functional group reacting with an acid anhydride group or an epoxy group and a functional group capable of hydrogen bonding with an amide bond or a hydroxyl group.Type: ApplicationFiled: March 4, 2010Publication date: December 15, 2011Applicant: The Yokohama Rubber Co., Ltd.Inventor: Naoyuki Morooka
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Patent number: 8034876Abstract: There are provided an organic fiber-reinforced composite resin composition which is good in fiber dispersion, excellent in appearance, excellent in mechanical properties such as tensile elongation at break or impact strength and easy in thermal recycle; and a molded article obtained therefrom. An organic fiber-reinforced composite resin composition comprising (a) 60 to 95% by weight of a polyolefin resin (provided that an acid-modified polyolefin resin is excluded) and (b) 40 to 5% by weight (provided that (a)+(b)=100% by weight) of organic fiber to which a polar resin (provided that an acid-modified polyolefin resin is excluded) is attached, or an organic fiber-reinforced composite resin composition comprising organic fiber in an amount of 10 to 200 parts by weight based on 100 parts by weight of a polyolefin resin and having an Izod impact strength at ?40° C. of 10 kJ/m2 or more, and further, an organic fiber-reinforced composite resin molded article obtained therefrom.Type: GrantFiled: November 6, 2007Date of Patent: October 11, 2011Assignees: Mitsubishi Chemical Corporation, Teijin Fibers LimitedInventors: Masatoshi Oomori, Takayuki Itou, Takakazu Yoshihara, Taku Kitade
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Patent number: 8021730Abstract: A thermoplastic elastomer composition possessing superior air impermeability, excellent durability and flexibility. In particular, the composition includes (A) at least one halogenated isobutylene-containing elastomer; and (B) at least one nylon resin having a melting point of about 170° C. to about 260° C.; and (C) a low molecular weight polymeric nylon plasticizer; wherein: (1) the at least one elastomer is present as a dispersed phase of small vulcanized particles in a continuous nylon phase; and (2) the elastomer particles are formed by dynamic vulcanization. Use of a low molecular weight nylon plasticizer provides for improved mixing and rubber dispersion while retaining the high levels of impermeability achievable by the use of nylon resin and halogenated isobutylene-containing elastomer in a dynamically vulcanized composition. Such compositions are particularly useful in applications such as tire innerliners and barrier films or layers as well as hoses.Type: GrantFiled: October 27, 2005Date of Patent: September 20, 2011Assignees: ExxonMobil Chemical Patents Inc., The Yokohama Rubber Co., Ltd.Inventors: Andy Haishung Tsou, Yoshihiro Soeda, Yuichi Hara, Matthew Brian Measmer
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Publication number: 20110220667Abstract: Disclosed is an impact-resistant modified polyamide moulding compound which is suitable in particular for the production of containers having a good oxygen barrier and low-temperature impact strength. Also disclosed are containers which are produced from the thermoplastic polyamide moulding compound. In particular, storage or transport containers for industrial chemicals, agrochemicals, the cosmetic industry, pharmaceutical industry or foodstuffs industry can be produced from the polyamide moulding compound of the invention.Type: ApplicationFiled: March 11, 2011Publication date: September 15, 2011Applicant: EMS-PATENT AGInventors: Mark Pfleghar, Gerhard Zaschke, Roland Treutlein, Ulrich Presenz
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Publication number: 20110218281Abstract: Provided is a thermoplastic elastomer composition, which includes a halogenated isoolefin/para-alkylstyrene copolymer rubber dispersed in a polyamide resin in order to improve the fatigue durability of a polyamide resin, while maintaining high flowability of the polyamide. A thermoplastic elastomer composition comprising a continuous phase composed of a modified polyamide resin (A) and a dispersed phase composed of a halogenated isoolefin/para-alkylstyrene copolymer rubber (B) is provided. The modified polyamide resin (A) is a resin obtained by melt-kneading 100 parts by weight of a polyamide resin (C) with not less than 0.05 part by weight and less than 3 parts by weight a compound (D), such as a monofunctional epoxy compound, capable of binding to a terminal amino group of the polyamide resin at a temperature not lower than the melting point of the polyamide resin (C). The composition can be used as an inner liner of a pneumatic tire.Type: ApplicationFiled: May 13, 2011Publication date: September 8, 2011Applicant: The Yokohama Rubber Co., Ltd.Inventors: Yuichi Hara, Naoyuki Morooka
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Publication number: 20110213085Abstract: The invention pertains to the use of certain fluorinated thermoplastic polymer additives for reducing the coefficient of friction of non-fluorinated polymers and to masterbatches of said additives with non-fluorinated polymers.Type: ApplicationFiled: October 23, 2009Publication date: September 1, 2011Applicant: SOLVAY SOLEXIS S.P.A.Inventors: Claudio Adolpho Pietro Tonelli, Grazia Meroni
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Publication number: 20110195215Abstract: The invention relates to a copolyamide comprising at least two units corresponding to the following general formula: A/10,T in which: A is chosen from a unit obtained from an amino acid, a unit obtained from a lactam and a unit corresponding to the formula (Ca diamine).(Cb (cyclo)aliphatic diacid), with a representing the number of carbon atoms of the diamine and b representing the number of carbon atoms of the diacid, a and b each being between 4 and 36; 10,T denotes a unit obtained from the polycondensation of 1,10-decanediamine and terephthalic acid, characterized in that it has a polydispersity index, denoted by Ip, of less than or equal to 3.5, measured by gel permeation chromatography. The invention also relates to the process for preparing said copolyamide, a composition comprising this polyamide and also the use of this polyamide and of such a composition.Type: ApplicationFiled: August 6, 2009Publication date: August 11, 2011Applicant: ARKEMA FRANCEInventors: Thierry Briffaud, Philippe Blondel, Thierry Lefebvre
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Patent number: 7956134Abstract: A modified butyl rubber composition containing a modified butyl rubber obtained by a modification reaction of a compound (a) having a nitroxide-free radical, stable in the presence of oxygen at an ordinary temperature, in the molecule thereof and a radical initiator (b) and at least two kinds of bi- or more-functional radical polymerizable monomers (c).Type: GrantFiled: April 16, 2008Date of Patent: June 7, 2011Assignee: The Yokohama Rubber Co., Ltd.Inventors: Makoto Ashiura, Tetsuji Kawazura
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Patent number: 7954528Abstract: A thermoplastic elastomer composition having excellent durability and flexibility while possessing superior air impermeability. In particular, a process for producing a thermoplastic elastomer composition having high rubber content by multistage addition of at least one vulcanizable rubber component, in which the time required to substantially cure the at least one rubber component preferably is less the mixer residence time. Such compositions are particularly useful in applications such as tire innerliners and barrier films or layers.Type: GrantFiled: October 27, 2005Date of Patent: June 7, 2011Assignees: ExxonMobil Chemical Patents Inc., The Yokohama Rubber Co., Ltd.Inventors: Andy Haishung Tsou, Yoshihiro Soeda, Yuichi Hara, Matthew Brian Measmer
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Publication number: 20110123749Abstract: A polyamide moulding composition with the following constitution is described: (a) from 40 to 90% by weight of a copolyamide, where this is composed of (a1) 1,6-hexanediamine and 1,10-decanediamine and also (a2) terephthalic acid and at least one other polyamide-forming monomer selected from the group of: dicarboxylic acid having from 8 to 18 carbon atoms, laurolactam, aminolauric acid, and/or mixtures thereof; (b) from 10 to 40% by weight of macromolecular plasticizers, with the proviso that these can have been replaced to some extent by low-molecular-weight plasticizers; (c) from 0 to 20% by weight of additives and/or added substances. Uses of this type of moulding composition are also described, in particular for the production of a fuel line, cooling line, oil line or urea line for the automobile sector, as also are production processes to give mouldings.Type: ApplicationFiled: November 19, 2010Publication date: May 26, 2011Applicant: EMS-PATENT AGInventors: Manfred HEWEL, Botho HOFFMANN, Andreas BAYER
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Patent number: 7947360Abstract: This invention relates to thermoplastic molding compositions with improved flowabilty based on a thermoplastic polyamide and on a copolymer composed of at least one olefin with at least one methacrylic ester or acrylic ester of an aliphatic alcohol, the MFI of the copolymer being not less than 50 g/10 min, and to a process for preparation of these molding compositions, and also to the use of the these molding compositions, for production of moldings for the electrical, electronics, telecommunications, motor vehicle, or computer industry, in sports, in medicine, in the household or in the entertainment industry.Type: GrantFiled: November 30, 2005Date of Patent: May 24, 2011Assignee: LANXESS Deutschland GmbHInventors: Detlev Joachimi, Peter Persigehl, Kurt Jeschke, Marcus Schäfer, Ralph Ulrich, Robert Hubertus Van Mullekom, Jochen Endtner, Jens Peter Joschek, Matthias Bienmüller
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Publication number: 20110060086Abstract: A copolymer is formed from an isoolefin having from 4 to 7 carbon atoms and an alkylstyrene. The copolymer has a substantially homogeneous compositional distribution. The copolymer has from about 8 to about 12 wt % of alkylstyrene and at least 85 wt % of isoolefin. The copolymer is preferably halogenated with about 1.1 to about 1.5 wt % of a halogen. The copolymer may in elastomeric nanocomposites. To obtain a good dispersion of the nanoclay in a formulated compound, at least one cure accelerator is selected from the group consisting of mercaptobenzothiazole disulfide, mercaptobenzothiazole, cyclohexyl benzothiazole disulfide, dibutyl thiourea, tetramethylthiuram disulfide, 4-4-dithiodimropholine, zinc dimethyldithiocarbamate, and zinc dibutylphosphorodithiate.Type: ApplicationFiled: August 23, 2010Publication date: March 10, 2011Inventors: Michael Brendan Rodgers, Weiqing Weng, John Patrick Soisson, Robert Norman Webb, Sunny Jacob
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Patent number: 7887726Abstract: The invention is directed to a “Self-Reinforced Composite” (SRC) made of recycled thermoplastic polymers, methods and an apparatus for their manufacture. In one embodiment of the invention, the SRC is a self-reinforced composite comprising (a) a fiber comprising a first recycled thermoplastic polymer and having a Young's modulus at least about 500 MPa and (b) a matrix comprising a second recycled thermoplastic polymer. In one aspect of the invention, the source mixture is recycled immiscible thermoplastic polymers, obtained from the waste stream in the carpet and automotive industries. In another embodiment of the invention, the method for making the self-reinforced composites, comprising the steps of (a) melt-blending recycled immiscible polymers, (b) phase-migration fiber spinning the recycled immiscible polymers to form a fiber having a first recycled thermoplastic polymer substantially surrounded by a second recycled thermoplastic polymer, and (c) drawing the fiber to form a high modulus fiber.Type: GrantFiled: November 26, 2007Date of Patent: February 15, 2011Assignee: Novana, Inc.Inventor: Fu-Jya Daniel Tsai
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Publication number: 20110033703Abstract: The present invention relates to a cutting member, especially to a cutting filament, for a plant-cutting device such as a scrub cutter or edge trimmer characterized in that at least one portion of the cutting member is a mixture of at least a polyamide and at least one another thermoplastic material. Another object of the invention relates to a composition for use in the manufacture of a cutting member by extrusion/drawing or by injection, characterized it is made from a mixture of at least a polyamide and at least one another thermoplastic material.Type: ApplicationFiled: April 21, 2008Publication date: February 10, 2011Inventor: Emmanuel Legrand
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Publication number: 20110023986Abstract: Polyamide blend molding compound, includes a polyamide blend content and at least one impact-resistant component, characterized in that the polyamide blend content includes the following polyamides: (A) 20 to 65% by weight of at least one semi-crystalline polyamide with an enthalpy of fusion >40 J/g and with an average of at least 8 C atoms per monomeric unit; (B) 8 to 25% by weight of at least one amorphous and/or microcrystalline polyamide, with the microcrystalline polyamide having an enthalpy of fusion in the range of 4 to 40 J/g, and (C) 1 to 20% by weight of at least one polyamide with an average of a maximum of 6 C atoms per monomeric unit. The impact-resistant component includes as follows: (D) 10 to 40% by weight of a polyamide elastomer which is composed of hard segments and soft segments, with the hard segments being based on lactams and/or amino-carboxylic acids, and (E) 0 to 35% by weight of a non-polyamide elastomer.Type: ApplicationFiled: July 29, 2010Publication date: February 3, 2011Applicant: EMS-PATENT AGInventors: Botho HOFFMANN, Ralph KETTL
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Patent number: 7879272Abstract: An oriented thermoplastic elastomer film having reduced permeability and improved fatigue resistance comprising a dynamically vulcanized polymer blend of (A) a halogenated isobutylene elastomer and (B) polyamide, the film is produced by casting or blowing the above polymer blend under the condition such that a shear rate at a die lip for casting or blowing is regulated to control the molecular arrangement in the film, whereby the planar birefringence (PBR) of the resultant film becomes greater or equal to 0.002 and a production process of the same.Type: GrantFiled: December 28, 2009Date of Patent: February 1, 2011Assignees: ExxonMobil Chemicals Patents, Inc., The Yokohama Rubber Co., Ltd.Inventors: Yoshihiro Soeda, Andy Haishung Tsou, Foshee Joyce Caraway
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Publication number: 20110015328Abstract: The present invention relates to a high temperature polyamide resin composition for moulded articles, articles formed therefrom and processes for producing the composition, comprising: semi-aromatic polyamide with a melt temperature above 280° C. and one or more oxidized polyethylene lubricants as internal lubricant.Type: ApplicationFiled: July 16, 2010Publication date: January 20, 2011Applicant: E.I.DU PONT DE NEMOURS AND COMPANYInventor: Yuji Orihashi
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Patent number: 7833450Abstract: The present invention relates to the use of a microcrystalline polyamide for obtaining an object having all or part of its outer surface formed from this microcrystalline polyamide and having a particular surface finish, in which: the manufacture of the object comprises steps carried out hot between the Tg (glass transition temperature) and the Tm (melting point) of this microcrystalline polyamide; the transparency of the microcrystalline polyamide is such that the light transmission at 560 nm on a polished object 1 mm in thickness is greater than 80%, advantageously greater than 88%, the transparency being measured on the object obtained by standard processing methods, such as injection moulding and sheet extrusion/calendering.Type: GrantFiled: June 22, 2005Date of Patent: November 16, 2010Assignee: Arkema FranceInventors: Thibaut Montanari, Christelle Recoquille
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Publication number: 20100234500Abstract: An object of the invention is to provide a thermoplastic elastomer composition, which includes a halogenated isoolefin/para-alkylstyrene copolymer rubber dispersed in a polyamide resin in order to improve the fatigue durability of a polyamide resin, while maintaining high flowability of the polyamide resin, even if a halogenated isoolefin/para-alkylstyrene copolymer rubber is finely dispersed and loaded to a high content. A thermoplastic elastomer composition comprising a continuous phase composed of a modified polyamide resin (A) and a dispersed phase composed of a halogenated isoolefin/para-alkylstyrene copolymer rubber (B) is provided. The modified polyamide resin (A) is a resin obtained by melt-kneading 100 parts by weight of a polyamide resin (C) with not less than 0.Type: ApplicationFiled: March 11, 2010Publication date: September 16, 2010Applicant: The Yokohama Rubber Co., Ltd.Inventors: Yuichi Hara, Naoyuki Morooka
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Publication number: 20100207071Abstract: The present disclosure relates to thermoplastic polymer articles, and methods of making and/or selectively controlling surface properties of the same. The article includes a bulk thermoplastic polymer, and a cap layer formed in-situ thereon. A resin formulation used to form the articles includes the bulk polymer in an amount ranging from about 80 wt. % to about 99.5 wt. %, and a polymer additive (which forms the cap layer) in an amount ranging from about 0.5 wt. % to about 20 wt. %. The bulk polymer viscosity ranges from about 5 to about 1000 times higher than the polymer additive viscosity, and the polymer additive is immiscible in the bulk polymer. A predetermined surface property of the polymer additive, which is not inherent in the bulk polymer, is imparted to the cap layer, and thus to the article.Type: ApplicationFiled: February 13, 2009Publication date: August 19, 2010Applicant: GM GLOBAL TECHNOLOGY OPERATONS, INC.Inventors: Bhaskar Patham, Soumendra K. Basu
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Publication number: 20100203346Abstract: The invention relates to extruded transparent or translucent article that have been melt calendered to improve the physical properties and optical clarity. The polyamide article is a sheet, film, or profile.Type: ApplicationFiled: June 26, 2008Publication date: August 12, 2010Applicant: Arkema Inc.Inventors: Elizabeth E. Grimes, William Todd Rogers, Claire Michalowicz
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Patent number: 7750078Abstract: Disclosed herein is the preparation of reaction products which contain carboxylic acid-grafted functionalized propylene homopolymers and copolymers that can be used as additives for polyolefin-based plastic products such as hot melt adhesives. Such reaction product additives may be prepared by: a) providing a first reactant comprising a selected type of relatively low molecular weight, low melt viscosity, molten propylene-based homopolymer or copolymer; b) forming a reaction mixture by adding to this first reactant a second reactant comprising an unsaturated carboxylic acid-based functionalizing agent, and an initiator comprising a certain type of organic peroxide; and c) maintaining the resulting reaction mixture at a relatively low temperature between about 130° C. and about 165° C. for a period of time and under conditions sufficient to form a reaction product which comprises acid-grafted propylene-based polymeric material, and which has a relatively high Grafting Efficiency.Type: GrantFiled: December 7, 2005Date of Patent: July 6, 2010Assignee: Exxonmobil Chemical Patents Inc.Inventor: Christopher Lewis Curry
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Patent number: 7741407Abstract: The present invention is directed to golf balls having at least one layer which comprises a polymer produced by a process wherein one or more monomers are contacted with a composition comprising the admixture or reaction product resulting from combining (A) a first olefin polymerization catalyst, (B) a second olefin polymerization catalyst capable of preparing polymers differing in chemical or physical properties from the polymer prepared by the first olefin polymerization catalyst under equivalent polymerization conditions, and (C) a chain shuttling agent. Golf balls of the present invention include one-piece, two-piece, and multi-layer golf balls. In two-piece and multi-layer golf balls of the present invention, the polymer may be present in a core layer, a cover layer, an intermediate layer (in the case of multi-layer balls), or a combination thereof.Type: GrantFiled: December 13, 2006Date of Patent: June 22, 2010Assignee: Acushnet CompanyInventors: Brian Comeau, David A. Bulpett, Kevin M. Harris, Murali Rajagopalan
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Publication number: 20100130677Abstract: Polyamide-based thermoplastic polymer compositions that exhibit a good balance among the properties thereof, in particular their mechanical properties, and a high fluidity in the molten state; such compositions contain at least one high-fluidity polyamide and a shock modification agent having functional groups that react with the polyamide.Type: ApplicationFiled: February 21, 2008Publication date: May 27, 2010Inventors: Marco Amici, Cesare Guaita
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Publication number: 20100130688Abstract: A rubber composition having an excellent adhesion with a brass-plated wire and an excellent heat aging resistance of a vulcanite containing (A) 100 parts by weight of a diene-based rubber, (B) 0.1 to 10 parts by weight of, as a vulcanization accelerator, an amine salt compound of a carboxylic acid group-containing disulfide having the formula (I): and (C) 0.1 to 10 parts by weight of, as a vulcanization agent, a cyclic sulfide compound having the formula (V): wherein R is a substituted or unsubstituted C2-C20 alkylene group, a substituted or unsubstituted C2-C20 oxyalkylene group or an aromatic ring-containing alkylene group, x is an integer of 2-6 on average and n is an integer of 1-30.Type: ApplicationFiled: August 8, 2007Publication date: May 27, 2010Applicant: The Yokohama Rubber Co., Ltd.Inventors: Yongcheng Jin, Wonmun Chio
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Publication number: 20100113661Abstract: The invention relates to a method for preparing a powdered polymer selected from a polyamide, a copolyamide or a copolyesteramide by anionic polymerization in a solvent solution, characterized in that the polymerization of the monomers) generating said polymer is made in the presence of a catalyst, an activator, at least one amide one of which is always a N,N?-alkylene bisamide, and an organic or inorganic filler, the amount of N,N?-alkylene bisamide added in the medium being determined based on the specific surface are desired for the powder particles, said powder particles having an essentially constant diameter or one depending on the desired mean diameter of the powder particles, said powder particles having an essentially constant specific surface area.Type: ApplicationFiled: December 20, 2007Publication date: May 6, 2010Applicant: ARKEMA FRANCEInventors: Holger Senff, Christelle Gaboriau
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Patent number: 7709575Abstract: A method for controlling a dispersion size of an elastomer in a thermoplastic elastomer composition having improved durability and impermeability obtained by melt-mixing (A) a halogenated isobutylene elastomer, (B) polyamide and (C) a dispersion aid, and dynamically vulcanizing the resultant blend to form the dynamically vulcanized polymer blend, wherein the halogenated isobutylene elastomer is dispersed in the polyamide matrix at a volume-average dispersion diameter of less than 2.0 ?m.Type: GrantFiled: March 6, 2003Date of Patent: May 4, 2010Assignees: The Yokohama Rubber Co., Ltd., ExxonMobil Chemical Patents Inc.Inventors: Andy Haishung Tsou, Yoshihiro Soeda, Yuichi Hara
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Publication number: 20100098948Abstract: A composite yarn comprising an ultra-high-molecular-weight-polyethylene filament and an additional synthetic resin filament, at least a part of which comprises a light storage agent. The composite yarn has both visibility in a dark place and properties necessary for a fishing line or other yarns made of an ultra high molecular weight polyethylene filament.Type: ApplicationFiled: January 22, 2008Publication date: April 22, 2010Applicant: Y. G. K CO., LTD.Inventor: Shigeru Nakanishi
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Patent number: 7700695Abstract: A modified butyl rubber composition comprising a butyl rubber modified by mixing, under heating, (a) a compound having a nitroxide-free radical in the molecule thereof, which is stable at an ordinary temperature even in the presence of oxygen, (b) a radical initiator, and (c) a bi- or more-functional radical polymerizable monomer and further by compounded with (d) a bi- or more-functional radical polymerizable monomer, which is different from the ingredient (c).Type: GrantFiled: September 29, 2008Date of Patent: April 20, 2010Assignee: The Yokohama Rubber Co., Ltd.Inventors: Makoto Ashiura, Tetsuji Kawazura
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Publication number: 20100087585Abstract: The present invention relates to a composite obtained from a composition comprising: 50 (excluded) to 90% by weight of at least one polyamide; 10 to 50% by weight of polylactic acid (PLA); and 0 to 30% by weight of at least one compatibilizing agent. The present invention also relates to a process for manufacturing this composite and its use.Type: ApplicationFiled: January 29, 2008Publication date: April 8, 2010Applicant: ARKEMA FRANCEInventors: Maho Yasuda, Nicolas Amouroux, Benoit Brule, Nadine Decraemer, Jean-Jacques Flat
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Patent number: 7691947Abstract: A controlled molecular weight polymer of styrene is provided having bromine substituted thereon. Control of molecular weight is achieved by the use of alpha-methyl styrene dimer as a chain transfer agent. The brominated polymer of styrene is useful as a flame retardant, particularly for polyamides giving improved properties including color retention after molding.Type: GrantFiled: May 18, 2009Date of Patent: April 6, 2010Assignee: Chemtura CorporationInventors: Wayne Meyer, Jennifer L. Bohan, Larry D. Timberlake, James D. Siebecker
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Patent number: 7683134Abstract: A process for the manufacture of maleated polypropylenes having an acid number greater than 6, a yellowness index color of no greater than 76, and a number average molecular weight of at least 20,000. The process for making the maleated polypropylenes includes forming a mixture of molten polypropylene and molten maleic anhydride in a reactor, introducing a free radical initiator into the molten mixture to produce a product having maleic anhydride grafted onto the polypropylene, and recovering a high acid number, high molecular weight maleated polypropylene of low color from the reactor.Type: GrantFiled: July 21, 2008Date of Patent: March 23, 2010Assignee: Eastman Chemical CompanyInventors: Thomas David Roberts, Stephen Wayne Coe
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Publication number: 20100056714Abstract: Farnesene interpolymer comprises units derived from a farnesene (e.g., ?-farnesene or ?-farnesene) and units derived from at least one vinyl monomer. The farnesene interpolymer can be prepared by copolymerizing the farnesene and at least one vinyl monomer in the presence of a catalyst. In some embodiments, the farnesene is prepared from a sugar by using a microorganism. In other embodiments, the at least one vinyl monomer is ethylene, an ?-olefin, or a substituted or unsubstituted vinyl halide, vinyl ether, acrylonitrile, acrylic ester, methacrylic ester, acrylamide or methacrylamide, or a combination thereof.Type: ApplicationFiled: September 1, 2009Publication date: March 4, 2010Applicant: Amyris Biotechnologies, Inc.Inventor: Derek James MCPHEE
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Patent number: 7625972Abstract: The present invention relates to a flexible semiaromatic polyamide composition with a low moisture uptake, made up by weight, the total being 100: A) 60 to 99.5% (preferably 70 to 93%) of at least one copolyamide of formula X/Y,Ar in which there are between 0.5 and 0.7 mol of X per 1 mol of Y, and in which Y denotes the residues of 1,10-decanediamine, Ar denotes the residues of terephthalic acid, X denotes the residue of aminoundecanoic acid NH2—(CH2)10—COOH, the unit Y,I residue from the condensation of the diamine (Y) with isophthalic acid, wherein said composition is a flexible semiaromatic copolyamide; B) 0.5 to 40% (preferably 7 to 30%) of at least one product chosen from plasticizers, nanofillers, polyolefins, crosslinked polyolefins and additives.Type: GrantFiled: June 9, 2008Date of Patent: December 1, 2009Assignee: Arkema FranceInventors: Philippe Blondel, Thierry Briffaud, Annett Linemann, Helene Egret, Pierre Nogues
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Patent number: 7582342Abstract: A composition suitable for molding is provided having the following components: I. from 97 to 80 parts by weight of a polyetheramide, having units based on one or more linear aliphatic diamines having from 6 to 14 carbon atoms, one or more linear aliphatic or aromatic dicarboxylic acids having from 6 to 14 carbon atoms, and one or more polyetherdiamines having at least 3 carbon atoms per ether oxygen and having primary amino groups at the chain ends, II. from 3 to 20 parts by weight of a rubber containing one or more functional groups; and where the total of the parts by weight of I and II is 100; and moldings produced therefrom.Type: GrantFiled: July 16, 2004Date of Patent: September 1, 2009Assignee: Degussa AGInventors: Franz-Erich Baumann, Wilfried Bartz, Martin Himmelmann, Olivier Farges
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Patent number: 7538158Abstract: A thermoplastic elastomer composition having improved mechanical properties and fatigue resistance comprising (A) a halogenated isobutylene elastomer, (B) polyamide and (C) an amine component selected from tertiary amines and secondary diamines, wherein the elastomers are dispersed as a domain in a continuous phase of the polyamide.Type: GrantFiled: March 6, 2003Date of Patent: May 26, 2009Assignees: ExxonMobil Chemical Patents Inc., The Yokohama Rubber Co., Ltd.Inventors: Andy Haishung Tsou, Yoshihiro Soeda, Hsien-Chang Wang, Matthew Brian Measmer
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Patent number: 7528196Abstract: A golf ball that includes (a) a core comprising a center; (b) an outer cover layer; and (c) one or more intermediate layers; wherein at least one of the core, the outer cover layer, or the intermediate layer comprises a composition that includes (i) at least one polyalkenamer and at least one polyamide or (ii) at least one polyalkenamer. A method for making a golf ball comprising a core, one or more intermediate layers and an outer cover layer is also disclosed, wherein the method includes forming a blend comprising at least one polyalkenamer rubber and at least one polyamide; and injection molding the blend into a spherical mold to form the intermediate or outer cover layer. Also disclosed is a polymer composition that includes at least one polyalkenamer and at least one thermoplastic copolyamide elastomer.Type: GrantFiled: January 18, 2006Date of Patent: May 5, 2009Assignee: Taylor Made Golf Company, Inc.Inventors: Hyun J. Kim, Hong G. Jeon
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Patent number: 7507474Abstract: The invention relates to thermoplastic compositions comprising a polymer matrix and an additive which modifies the rheological behavior of the matrix in the molten state. The purpose of the invention is to provide a preferably non-reactive additive which can be dispersed in the matrix and which can be used to obtain a good compromise in terms of rheological properties/mechanical properties. According to the invention, the additive is a hyperbranched polymer which is functionalized by R<2> radicals, R<2> being a radical of the following type: substituted or non-substituted hydrocarbon, of the silicon type, linear or branched alkyl, aromatic, arylalkyl, alkylaryl or cycloaliphatic, which can comprise one or more unsaturations and/or one or more heteroatoms.Type: GrantFiled: December 16, 2002Date of Patent: March 24, 2009Assignee: RhodianylInventors: Joël Varlet, Florence Clement, Franck Touraud, Sandrine Rochat, Natalia Scherbakoff
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Publication number: 20080214736Abstract: Polymer compositions comprising a) a polymer substrate selected from the group consisting of the polyolefins, polyesters, polyamides and polylactic acids and b) a combination of i) at least one permanent antistatic additive selected from the group consisting of the polyetheresteramides and ii) at least one migratory antistatic additive selected from the group consisting of the alkylsulfonic acid salts, the alkyl diethanolamines and the alkyl diethanolamides, are effectively antistatic.Type: ApplicationFiled: February 26, 2008Publication date: September 4, 2008Inventors: Hui Chin, Christopher J. Fagouri
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Patent number: 7408007Abstract: A process for the manufacture of maleated polypropylenes having an acid number greater than 4.5, a yellowness index color of no greater than 76, and a number average molecular weight of at least 20,000. The process for making the maleated polypropylenes includes forming a mixture of molten polypropylene and molten maleic anhydride in a reactor, introducing a free radical initiator into the molten mixture to produce a product having maleic anhydride grafted onto the polypropylene, and recovering a high acid number, high molecular weight maleated polypropylene of low color from the reactor.Type: GrantFiled: February 4, 2005Date of Patent: August 5, 2008Assignee: Eastman Chemical CompanyInventors: Thomas David Roberts, Stephen Wayne Coe
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Patent number: 7408010Abstract: The present invention relates to primer compositions in non-flowable form. More particularly, the present invention relates to non-flowable primer compositions which are particularly useful for use with curable adhesive and sealant compositions in threadlocking, retaining, bonding and sealing applications and which can be packaged in a convenient pocket-sized applicator dispenser.Type: GrantFiled: December 15, 2006Date of Patent: August 5, 2008Assignee: Henkel CorporationInventors: Prakash S. Patel, Shabbir Attarwala, Matthew P. Burdzy, Qinyan Zhu
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Patent number: 7402628Abstract: The invention relates to thermoplastic compositions in which (A) an isotactic polypropylene, optionally containing comonomer, with a melting point of at least 110° C. and (B) a polyamide, (A) and (B) constituting at least 70 wt %, are blended with (C) at least 2 wt % of a grafted functionalized propylene-based elastomer having isotactic crystallinity and containing at least 0.25 wt % of MAH-derived units based on the total weight of (C). Optionally (D) an ungrafted polyolefin may be added with a melting point of less than 100° C., (C) and (D) combined being at least 8 wt % and the wt % of (A), (B), (C) and (D) being calculated on the basis of the total polymer weight of the thermoplastic composition.Type: GrantFiled: March 9, 2006Date of Patent: July 22, 2008Assignee: ExxonMobil Chemical Patents Inc.Inventors: Jean-Roch Schauder, Guy Joseph Wouters, Sudhin Datta
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Patent number: 7393895Abstract: A method of forming a poly(arylene ether)-containing solid concentrate is described. The method includes blending a poly(arylene ether), a thermosetting resin, and a compatibilizing agent in the presence of a solvent to form a homogeneous solution, and removing the solvent to yield the solid concentrate. The solid concentrate is useful for preparing curable conditions.Type: GrantFiled: August 23, 2007Date of Patent: July 1, 2008Assignee: Sabic Innovative Plastics IP B.V.Inventors: Michael John Davis, James Estel Tracy
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Patent number: 7332547Abstract: The present invention relates to adhesive and sealant compositions in non-flowable form. More particularly, the present invention relates to non-flowable adhesive and sealant compositions which are particularly useful in the threadlocking and sealing applications and which can be packaged in a convenient pocket-sized applicator dispenser.Type: GrantFiled: December 5, 2006Date of Patent: February 19, 2008Assignee: Henkel CorporationInventors: Shabbir Attarwala, Zhu Qinyan, Matthew P. Burdzy
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Patent number: 7323515Abstract: The invention relates to a sealing composition which comprises a crosslinkable fluoroelastomer, a crosslinking agent for this elastomer and a reinforcing polyimide resin powder; and seals such as O-rings, made by molding the composition into a prescribed shape and crosslinking the molded article. According to the invention, seals free from metals and sulfur can be made from a fluoroelastomer suitable for the production unit for semiconductor devices without a scatter of physical properties within one seal or among seals, and the obtained seals are lowered in the compression set determined ate the same hardness level to cause little permanent set by compression in use, thus having a prolonged service life.Type: GrantFiled: November 29, 2002Date of Patent: January 29, 2008Assignees: Jtekt Corporation, Koyo Sealing Techno Co., Ltd.Inventors: Kazunori Hayashida, Takehisa Kida, Kazutoshi Yamamoto, Tomotaka Nakagawa, Takahiro Yamagishi, Masanobu Kato