Mixed With O-c(=o)-o-, Hal-c(=o)-, Or Hal-c(=o)-hal Reactant Or Polymer Derived Therefrom Patents (Class 525/433)
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Publication number: 20100063218Abstract: Included are nylon and polyurethane urea compositions such as in the form of powders, beads and flock to be included in extruded and molded articles containing a thermoplastic resin such as nylon 12. The addition of the powders, beads or flock improve flexibility and shape retention of such molded articles, for example in eyewear frames.Type: ApplicationFiled: September 14, 2009Publication date: March 11, 2010Applicant: INVISTA North America S.a.r.l.Inventors: Charles Frank Iavarone, James Michael Lambert, Hong Liu, Sonia Menot, Federica Maria Roberta Stoppa
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Patent number: 7635735Abstract: The polycarbonate resin composition having good fatigue strength according to the present invention comprises (A) 80 to 98 parts by weight of a polycarbonate resin, (B) 0.1 to 10 parts by weight of a thermotropic aromatic liquid crystalline polymer resin and (C) 1 to 20 parts by weight of a core-shell grafted copolymer.Type: GrantFiled: June 23, 2006Date of Patent: December 22, 2009Assignee: Cheil Industries Inc.Inventors: Kyung Hoon Seo, Kyung Tae Kim, Sung Sig Min, Bong Jae Lee
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Patent number: 7592464Abstract: Disclosed herein is a method comprising reacting a phenolphthalein material and a primary hydrocarbyl amine in the presence of an acid catalyst to form a reaction mixture comprising 2-hydrocarbyl-3,3-bis(4-hydroxyaryl)phthalimidine, wherein the phenolphthalein material comprises greater than or equal to 99 weight percent phenolphthalein, based on the total weight of the phenolphthalein material; quenching the reaction mixture and treating the quenched reaction mixture to obtain a first solid. The first solid is purified by a combination of techniques to produce a solid comprising 2-hydrocarbyl-3,3-bis(4-hydroxyaryl)phthalimidine with sufficient purity to be used as a monomer in the synthesis of clear polymers.Type: GrantFiled: March 30, 2007Date of Patent: September 22, 2009Assignee: SABIC Innovative Plastics IP BVInventors: Rajshekhar Basale, Hyacinth Mary Bastian, Balakrishnan Ganesan, Venkata Rama Narayanan Ganapathy Bhotla, Gurram Kishan, Pushpa Narayanan, Swaminathan Shubashree, Ravindra Vikram Singh
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Publication number: 20090234075Abstract: Provided is a thermoplastic resin composition having high impact resistance at low temperature and molded articles with good appearance using the thermoplastic resin composition. The thermoplastic resin composition contains 0.5 to 20 parts by mass of a rubbery elastomer (B) relative to 100 parts by mass of a resin mixture (A) comprising 45 to 97% by mass of a polycarbonate resin (a-1) and 55 to 3% by mass of a fatty acid polyester (a-2), wherein the component (B) is dispersed in the component (a-1).Type: ApplicationFiled: December 2, 2005Publication date: September 17, 2009Applicant: Idemitsu Kosan Co., Ltd.Inventors: Yusuke Hayata, Akio Nodera
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Publication number: 20090209695Abstract: Disclosed is a thermoplastic composition comprising a mixture of from 10 to 98 weight % of a polycarbonate polymer, from 2 to 90 weight % of a polyester polymer comprising structures derived from a diol compound having the structure (A) HO-Z-OH, wherein Z is a C1 to C36 linear aliphatic radical, a C3 to C36 branched aliphatic or cycloaliphatic radical, a C6 to C36 aryl radical, or a C7 to C36 alkylaryl radical, and a diacid compound having the structure (B) HOOC—CH2CH2—COOH, from 0 to 5 weight % of a polylactic acid polymer, wherein the sum of the polycarbonate polymer, the polyester polymer, and the polylactic acid polymer is equal to 100 weight %. The thermoplastic composition has improved mechanical properties.Type: ApplicationFiled: February 20, 2008Publication date: August 20, 2009Inventors: Ren Yu, Jing Zhang, Zhaohui Qu, Tong Sun, Wayne Yao
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Publication number: 20090131599Abstract: Disclosed herein is a method for producing a 2-hydrocarbyl-3,3-bis(4-hydroxyaryl)phthalimidine. The method comprises forming a reaction mixture comprising at least one substituted or unsubstituted phenolphthalein compound, at least one substituted or unsubstituted primary hydrocarbyl amine, and an acid catalyst; and heating the reaction mixture to form 2-hydrocarbyl-3,3-bis(4-hydroxyaryl)phthalimidine. An adduct of the 2-hydrocarbyl-3,3-bis(4-hydroxyaryl) phthalimidine is formed either by using an excess of the primary hydrocarbyl amine in the first heating step, or by isolating crude 2-hydrocarbyl-3,3-bis(4-hydroxyaryl)phthalimidine after the heating step and then reacting with a further amount of the primary hydrocarbyl amine. The 2-hydrocarbyl-3,3-bis(4-hydroxyaryl)phthalimidine has a formula: where R1 is selected from the group consisting of a hydrogen and a hydrocarbyl group, and R2 is selected from the group consisting of a hydrogen, a hydrocarbyl group, and a halogen.Type: ApplicationFiled: November 21, 2008Publication date: May 21, 2009Inventors: Vinod Kumar RAI, Radhakrishna Srinivasarao ARAKALI
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Patent number: 7514524Abstract: Disclosed herein is a method comprising reacting a phenolphthalein material and a primary hydrocarbyl amine in the presence of an acid catalyst to form a reaction mixture comprising 2-hydrocarbyl-3,3-bis(4-hydroxyaryl)phthalimidine, wherein the phenolphthalein material comprises greater than or equal to 95 weight percent phenolphthalein, based on the total weight of phenolphthalein material; quenching the reaction mixture and treating the quenched reaction mixture to obtain a first solid. The first solid is then triturated with a trituration solvent and washed to obtain a second solid, wherein the second solid comprises greater than or equal to 97 weight percent 2-hydrocarbyl-3,3-bis(4-hydroxyaryl)phthalimidine, based on the total weight of the second solid. The second solid may be polymerized to form a polycarbonate.Type: GrantFiled: March 30, 2007Date of Patent: April 7, 2009Assignee: SABIC Innovative Plastics IP B.V.Inventors: Rajshekhar Basale, Balakrishnan Ganesan, Venkata Rama Narayanan Ganapathy Bholta, Gurram Kishan, Surendra Kulkarni, Pradeep Nadkarni, Suresh Shanmugam, Ravindra Vikram Singh
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Patent number: 7365124Abstract: A polymer blend consisting essentially of at least one thermoplastic polymer, and a polymer comprising structural units derived from a 2-hydrocarbyl-3,3-bis(4-hydroxyaryl)phthalimidine is disclosed.Type: GrantFiled: August 24, 2004Date of Patent: April 29, 2008Assignee: General Electric CompanyInventors: Veeraraghavan Srinivasan, Chandrashekhar Lingannaiah, Anantharaman Dhanabalan
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Patent number: 7312263Abstract: The present invention relates to thermoplastic polyamide moulding compositions which contain at least one copolyamide with at least 20% by weight polyamide 12 components and at least one aprotic compound selected from the group of N-alkylated, cyclic carboxylic acid amides with 5 to 7 ring elements and/or of urea derivatives, the alkyl rests of which are linear at the nitrogen or which form a linking of the two N-atoms, and a process for production of the moulding compositions. The thermoplastic polyamide moulding compositions are distinguished by the fact that no solid deposits are formed during thermoplastic conversion.Type: GrantFiled: December 29, 2004Date of Patent: December 25, 2007Assignee: EMS-Chemie AGInventors: Eduard Schmid, Ornulf Rexin
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Patent number: 7288608Abstract: A thiol-ene polymeric material is disclosed. The material is produced by the photopolymerization of reactants having thiol and olefin moieties. The material can incorporate encapsulated components, including cells. Additionally, the material can be derivatized by reacting the polymeric material with components such as proteins.Type: GrantFiled: October 10, 2002Date of Patent: October 30, 2007Assignee: Regents of the University of ColoradoInventors: Christopher Bowman, Kristi Anseth, Bilge Hacioglu, Charlie Nuttelman
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Patent number: 7241832Abstract: Biodegradable polymer blends suitable for laminate coatings, wraps and other packaging materials are manufactured from at least one “hard” biopolymer and at least one “soft” biopolymer. “Hard” biopolymers tend to be more brittle and rigid and typically have a glass transition temperature greater than about 10° C. “Soft” biopolymers tend to be more flexible and pliable and typically have a glass transition temperature less than about 0° C. While hard and soft polymers each possess certain intrinsic benefits, certain blends of hard and soft polymers have been discovered which possess synergistic properties superior to those of either hard or soft polymers by themselves. Biodegradable polymers include polyesters, polyesteramides, polyesterurethanes, thermoplastic starch, and other natural polymers. The polymer blends may optionally include an inorganic filler. Films and sheets made from the polymer blends may be textured so as to increase the bulk hand feel.Type: GrantFiled: March 1, 2002Date of Patent: July 10, 2007Assignee: bio-tec Biologische Naturverpackungen GmbH & Co., KGInventors: Kishan Khemani, Harald Schmidt, Simon K. Hodson
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Patent number: 7230066Abstract: The present invention provides novel block copolycarbonates comprising residues from a hydroxy terminated polyetherimide or polyimide, residues from a dihydroxy compound, and residues from an activated carbonate. In a preferred embodiment of the present invention the polyetherimide or polyimide blocks exhibit high Mw while the resulting block copolycarbonate exhibits a single Tg. The novel block copolycarbonates of the present invention are produced under melt polymerization conditions in the presence an activated carbonate source.Type: GrantFiled: December 16, 2004Date of Patent: June 12, 2007Assignee: General Electric CompanyInventors: Farid Khouri, Julia Lee, Sheldon Shafer
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Patent number: 7214414Abstract: Biodegradable polymer blends suitable for laminate coatings, wraps and other packaging materials are manufactured from a blend of suitable biodegradable polymers, such as at least one “hard” biopolymer and at least one “soft” biopolymer. “Hard” biopolymers tend to be more brittle and rigid and typically have a glass transition temperature greater than about 10° C. “Soft” biopolymers tend to be more flexible and pliable and typically have a glass transition temperature less than about 0° C. While hard and soft polymers each possess certain intrinsic benefits, certain blends of hard and soft polymers have been discovered which possess synergistic properties superior to those of either hard or soft polymers by themselves. Biodegradable polymers include polyesters, polyesteramides, polyesterurethanes, thermoplastic starch, and other natural polymers. The polymer blends may optionally include an inorganic filler. Films and sheets made from the polymer blends may be textured so as to increase the bulk hand feel.Type: GrantFiled: April 12, 2005Date of Patent: May 8, 2007Assignee: biotec Biologische Naturverpackungen GmbInventors: Kishan Khemani, Harald Schmidt, Simon Hodson
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Patent number: 7098273Abstract: An object of the present invention is to improve the compatibility of the resin composition comprising the PAI resin and the PAS resin so as to provide a resin composition which is excellent in flowability when molten, strength, tenacity and heat resistance. A resin composition comprising: (1) 5 to 60 parts by weight of aromatic polyamide imide resin (A) having a weight average molecular weight (Mw) of 1,000 to 100,000 and having an amino group in an amount of 0.00002 to 0.002 mol/g in a molecule, (2) 95 to 40 parts by weight of polyarylene sulfide resin (B), and (3) 0.01 to 10 parts by weight of episulfide compound (C) based on 100 parts by weight of the total of (A) and (B).Type: GrantFiled: June 21, 2004Date of Patent: August 29, 2006Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Toshiaki Yamada, Hajime Ban, Hiroyuki Kudo
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Patent number: 7005481Abstract: The present invention relates to a process for the condensation of polyamides using an additive having carbonate units. This ensures a safe and fast condensation reaction.Type: GrantFiled: April 26, 2000Date of Patent: February 28, 2006Assignee: L. Brueggemann KG Sprit-und Chemische FabrikInventors: Dieter Lehmann, Klaus Titzschkau
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Publication number: 20040210009Abstract: This invention is a method for manufacturing a polymer alloy, by making at least two resins used as components miscible, and inducing the spinodal decomposition for causing phase separation, for forming a co-continuous structure with a wavelength of concentration fluctuation of 0.001 to 1 &mgr;m or a dispersed structure with a distance between particles of 0.001 to 1 &mgr;m. This invention is also a polymer alloy manufactured by the method. The polymer alloy of this invention can provide a molded article, film, fibers and the like respectively with excellent mechanical properties at high productivity.Type: ApplicationFiled: December 11, 2003Publication date: October 21, 2004Inventors: Sadayuki Kobayashi, Jiro Kumaki, Akira Hirai, Toru Nishimura
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Patent number: 6784257Abstract: The present invention relates to an antistatic polymer composition and more specifically to a composition comprising a thermoplastic polymer (A) and a copolymer (B) comprising polyamide blocks and polyether blocks comprising essentially ethylene oxide units —(C2H4—O)—, the copolymer (B) having a melting temperature of between 80 and 150° C. It is of use for the polymers (A) which are heat-sensitive or which are processed at low temperature.Type: GrantFiled: April 24, 2000Date of Patent: August 31, 2004Assignee: AtofinaInventors: Hermann Josef Hilgers, Christophe Lacroix, Reinhard Linemann
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Patent number: 6767988Abstract: Polyamide elastomer comprising a hard segment derived from polyamide having no divalent aromatic group and a soft segment derived from polycarbonate diol having no divalent aromatic group has high flexibility and high heat resistance in addition to good physical characteristics of the known polyamide elastomers.Type: GrantFiled: April 23, 2002Date of Patent: July 27, 2004Assignee: UBE Industries, Ltd.Inventors: Hiroshi Okushita, Tadao Muramatsu
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Patent number: 6610794Abstract: A resin composition comprising: a polyimide comprising a recurring unit represented by the following formula (1): wherein Ar0 is an aromatic hydrocarbon group having 6 to 15 carbon atoms, and R1 is at least one group selected from the group consisting of the divalent residual group obtained by removing two amino groups from an aliphatic diamine having 2 to 30 carbon atoms and the divalent residual group obtained by removing two amino groups from an alicyclic diamine having 4 to 30 carbon atoms, and a polyarylate or polyester carbonate. This resin composition has excellent heat resistance, dimensional stability and transparency. Particularly, the resin composition having excellent transparency is advantageously used as a molded product such as a flexible printed board.Type: GrantFiled: September 20, 2001Date of Patent: August 26, 2003Assignee: Teijin LimitedInventors: Tomonori Sakurai, Jiro Sadanobu, Takashi Ito, Naoya Saito, Shintaro Shimada
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Patent number: 6498217Abstract: A branched polyamide and a process for its preparation are disclosed. Aliphatic or aromatic esters of carbonic acid are used as branching agents in an optionally catalyzed reaction with crystalline polyamide to produce resins having good flow properties, high degree of crystallinity and excellent mechanical properties. Amorphous polyamides that are branched in accordance with the inventive process have improved flow properties.Type: GrantFiled: August 10, 2000Date of Patent: December 24, 2002Assignee: Bayer AktiengesellshaftInventors: Miroslav Marek, Friedrich-Karl Bruder, Konstadinos Douzinas
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Publication number: 20020123566Abstract: A thermoplastic resin composition, containing a thermoplastic resin, comprising at least one aromatic polycarbonate resin, a flame-retarding amount of an organophosphorus flame retardant compound and a flame reatarding amount of a polyimide compound.Type: ApplicationFiled: December 20, 2000Publication date: September 5, 2002Inventors: Emil M. Georgiev, Eric T. Gohr, Kirk J. Blackburn
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Patent number: 6348563Abstract: The present invention provides a p-hydroxybenzoic ester represented by the formula (1) wherein R1 represents a C6-C10 straight-chain or branched-chain alkyl group, A1 represents a C2-C4 alkylene group and n in an integer of 1 to 8, a plasticizer for at least one polyamide resin selected from nylon 11 and nylon 12 which comprises the ester, a polyamide resin composition comprising the ester and at least one polyamide resin selected from nylon 11 and nylon 12, and a polyamide resin molded article comprising the ester and having excellent high-temperature volatilization resistance and low-temperature impact resistance.Type: GrantFiled: August 27, 1999Date of Patent: February 19, 2002Assignee: New Japan Chemical Co., Ltd.Inventors: Hideo Fukuda, Yoshifumi Fujitani, Ryuichi Kohzu
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Patent number: 6344535Abstract: Polyether ester amides having high water vapor permeability are disclosed. The amides which are prepared simply and reliably, crystallize quickly, are biodegradable and/or compostable, and are suitable in the manufacture of films by extrusion.Type: GrantFiled: May 18, 2000Date of Patent: February 5, 2002Assignee: Bayer AktiengesellschaftInventors: Ralf Timmermann, Wolfgang Schulz-Schlitte, Michael Voigt
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Patent number: 6310145Abstract: A thermoplastic resin composition containing a polyetherimide resin, an aromatic polycarbonate resin and a functionalized polysiloxane polymer exhibits flame retarding properties.Type: GrantFiled: December 4, 1997Date of Patent: October 30, 2001Assignee: General Electric CompanyInventors: Robert Puyenbroek, Darryl Nazareth
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Patent number: 6291598Abstract: A polymerized material produced by the polymerization of an organic amide monomer in the presence of an organic carbonate and a process for the preparation thereof. The process comprises the steps of: heating an amount of the organic anide monomer to a temperature above its melting point; first mixing an amount of an anionic initiator with at least a portion of the amount of heated organic amide mnonomer to produce an amount of activated monomer, wherein the anionic initiator is not comprised of an alkali metal; second mixing an amount of the organic carbonate with at least a portion of the amount of heated organic amide monomer to produce an amount of dissolved organic carbonate; and polymerizing the amounts of heated organic amide monomer and activated monomer in the presence of the amount of dissolved organic carbonate to produce the polymerized material.Type: GrantFiled: October 18, 1999Date of Patent: September 18, 2001Inventors: Michael C. Williams, Nai-Hong Li, Yatin Sankholkar
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Patent number: 6143467Abstract: A heat resistant positive-working photosensitive composition that has a polybenzoxazole precursor bearing acid labile functional groups, a photoacid generator, a photosensitizer, and a solvent. The polybenzoxazole precursor bearing acid labile functional groups, has the structure: ##STR1## wherein k.sub.1 is an integer of 1 or 2, k.sub.2 is an interger of 0 or 1, and the sum of k.sub.1 and k.sub.2 is 2; Ar.sub.1 is a tetravalent aromatic, aliphatic, or heterocyclic group, or mixtures thereof; Ar.sub.2 is a divalent aromatic, aliphatic, or heterocyclic group or siloxane group; D is a monovalent acid labile group; and n is an integer from 20 to 200. A portion of Ar.sub.1 can be a divalent aromatic, aliphatic, or heterocyclic diamine moiety such that the fraction of diamine compound is 0-60 mole percent and the sum of diamine and diamino dihydroxy compound is 100%.Type: GrantFiled: September 24, 1999Date of Patent: November 7, 2000Assignee: Arch Specialty Chemicals, Inc.Inventors: Steve Lien-Chung Hsu, Pamela J. Waterson, Ahmad Naiini, William D. Weber, Sanjay Malik, Andrew J. Blakeney
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Patent number: 6072010Abstract: A thermoplastic resin composition containing a polyetherimide resin, a siloxane-polyetherimide copolymer and a branched polycarbonate resin exhibits exhibit high heat distortion temperature, improved room temperature impact properties and improved impact strength and ductility at low temperatures.Type: GrantFiled: December 23, 1997Date of Patent: June 6, 2000Assignee: General Electric Co.Inventor: Robert Puyenbroek
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Patent number: 6048948Abstract: There is a provided a method to produce a polymer composite material in which the rigid polymer (R.sub.m).sup.n is dispersed uniformly at the molecular level in the flexible polymer (M), preferably by both polymerization with no solvent in the molten and mixed state and subsequent polymerization in the solid state. According to the preferred embodiment of the present invention, the polymer composite material is produced by polymerization with no solvent in the molten and mixed state. In the case that the rigid polymer is polymerized from the monomer having a slow polymerization rate, in order to prevent roughness of the rigid polymer during polymerization, the polymerization in the molten state is stopped at the polymerization degree equal to that of an oligomer and the resulting composite is subsequently polymerized in the solid state to increase the polymerization degree of the rigid polymer.Type: GrantFiled: September 19, 1997Date of Patent: April 11, 2000Assignee: Mazda Motor CorporationInventor: Takahiro Tochioka
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Patent number: 6031036Abstract: Disclosed are aromatic brominated polycarbonate/polyester carbonate/silicone polyimide compositions having improved flame resistance and reduced drippage and heat release rate, comprising by weight:(A) from about 20 to about 77 parts of an aromatic brominated polycarbonate resin;(B) from about 20 to about 77 parts of a polyester carbonate resin;(C) from about 0.5 to about 10 parts of a silicone-polyimide resin;(D) from about 0 to about 25 parts of an aromatic polycarbonate having a molecular weight of from about 40,000 to about 90,000; the sum of (A)-(D) being 100 parts by weight;(E) from about 0.05 to about 2.0 parts of a metal salt of a halogenated monomeric or polymeric aromatic sulfonic acid or mixtures thereof, wherein the metal salt is selected from the group consisting of alkali metal salts, alkaline earth metal salts, and mixtures of the metal salts; and(F) from about 0.1 to about 5.0 parts by weight of filler or a pigment.Type: GrantFiled: December 10, 1993Date of Patent: February 29, 2000Assignee: General Electric CompanyInventors: Niles Richard Rosenquist, Angelika Howard Clark
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Golf ball forming compositions comprising polyamide blended with sulfonated or phosphonated polymers
Patent number: 6001930Abstract: The present invention relates to a golf ball, comprising a cover, a core and optional intermediate layers, wherein the various ball components are formed from compositions comprising a polyamide, in the form of a homopolymer, a copolymer or mixtures thereof. The compositions include a blend of about 1 wt. % to about 99 wt. % of at least one sulfonated and/or phosphonated polymer and about 99 wt. % to about 1 wt. % of at least one polyamide polymer. The polyamides of the present invention comprise polyamides and polyamide copolymers, such as polyamide block copolymers. The sulfonated and/or phosphonated polymer preferably comprises sulfonated thermoplastic elastomers, sulfonated thermoplastic polymers, and mixtures thereof.Type: GrantFiled: December 22, 1997Date of Patent: December 14, 1999Assignee: Acushnet CompanyInventor: Murali Rajagopalan -
Patent number: 5981654Abstract: The present invention relates to a golf ball, comprising a cover, a core and optional intermediate layers, wherein the various ball components are formed from compositions comprising a polyamide, in the form of a homopolymer, a copolymer or mixtures thereof. The compositions include a substantially optical brightener-free blend of about 1 wt. % to about 99 wt. % of at least one nonionomer polymer and about 99 wt. % to about 1 wt. % of at least one polyamide polymer. The polyamides of the present invention comprise polyamides and polyamide copolymers, such as nylons, nylon copolymers and nylon block copolymers. The nonionomer polymer comprises a nonionomer thermoplastic elastomer or a nonionomer thermoplastic. The present invention also relates to a golf ball comprising a cover layer, a core and at least one intermediate layer interposed between the cover layer and the core, wherein one of said layers comprises a substantially optical brightener-free composition comprising from about 1 wt. % to about 99 wt.Type: GrantFiled: May 23, 1997Date of Patent: November 9, 1999Assignee: Acushnet CompanyInventor: Murali Rajagopalan
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Patent number: 5905120Abstract: Blends containing a polyetherimide and from about 8 to about 20 wt. % of a modifier formulation comprising an acrylate rubber and a polycarbonate, and a method for improving the ESCR properties of polyetherimides.Type: GrantFiled: December 16, 1997Date of Patent: May 18, 1999Inventor: M. Jamal El-Hibri
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Patent number: 5852085Abstract: Disclosed are transparent blends of a polyetherimide, at least one resin selected from the group consisting of polycarbonate resins, poly(ester-carbonate) resins, and polyarylate resins, and an effective amount of a catalyst to provide transparency to the blends. In addition to being transparent, the blends have good ductility as well as high flexural and tensile properties. The yellowness index of the compositions can be improved with the addition of a phosphite.Type: GrantFiled: December 31, 1996Date of Patent: December 22, 1998Assignee: General Electric CompanyInventors: Sterling Bruce Brown, Stephen Michael Copper, Brenda A. Giles
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Patent number: 5714552Abstract: Disclosed is a two-step process for making an epichlorohydrin resin involving reacting the epichlorohydrin with a polyamine in a mixture first at a temperature of 25.degree.-40.degree. C. and then heating the mixture at 25.degree.-85.degree. C.Type: GrantFiled: March 24, 1994Date of Patent: February 3, 1998Assignee: Hercules IncorporatedInventor: Barton K. Bower
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Patent number: 5658995Abstract: Random block copolymers having the formula: ##STR1## wherein R.sub.1 is --CH.dbd.CH-- or (--CH.sub.2 --).sub.j, in which j is zero or an integer from one to eight; R.sub.2 is selected from hydrogen, straight and branched alkyl and alkylaryl groups containing up to 18 carbon atoms and derivatives or biologically and pharmaceutically active compounds covalently bonded to said copolymer; each R.sub.3 is independently an alkylene group containing up to 4 carbon atoms; y is an integer between about 5 and about 3000; and f is the percent molar fraction of alkylene oxide in the copolymer and ranges between about 1 and about 99 mole percent. Implantable medical devices and drug delivery implants containing the random block copolymers are also disclosed, along with methods for drug delivery and for preventing the formation of adhesions between injured tissues employing the random block copolymers. Polyarylate random block copolymers are also described.Type: GrantFiled: November 27, 1995Date of Patent: August 19, 1997Assignee: Rutgers, The State UniversityInventors: Joachim B. Kohn, Chun Yu
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Patent number: 5625011Abstract: The invention relates to molecular composites including a rigid reinforcing thermoplastic polymer dispersed on a molecular scale in a flexible organosiloxane/thermoplastic polymer copolymer, to a process for the preparation of the said composites and to a material with a surface enriched in siloxane, obtained from the said molecular siloxane composites, and to the uses of said composites and of the said material, in particular for aerospace construction.Type: GrantFiled: June 29, 1994Date of Patent: April 29, 1997Assignee: Agence Spatiale EuropeenneInventor: Sanjay Palsule
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Patent number: 5618890Abstract: The invention relates to polycarbonates (PC) terminated by allylphenols, preferably eugenol, and subsequently grafted with maleic anhydride (MA) in the melt, to their use as blending partners for polyamides (PA) and to the polycarbonate/polyamide blends.Type: GrantFiled: August 17, 1995Date of Patent: April 8, 1997Assignee: Bayer AktiengesellschaftInventors: Burkhard K ohler, Klaus Horn
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Patent number: 5605978Abstract: Thermoplastic molding compositions comprising blends of a block polysiloxane--polycarbonate copolymer and a polyamide resin are useful for extruding articles such as films.Type: GrantFiled: October 12, 1995Date of Patent: February 25, 1997Assignee: General Electric CompanyInventors: Louis M. Maresca, Raymond Z. Naar
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Patent number: 5521258Abstract: Compositions which comprise blends of a poly(ester-carbonate) resin and a polyetherimide or a poly(ether sulfone) resin are provided. The compositions are useful for preparing articles that are resistant to autoclave sterilization conditions.Type: GrantFiled: November 14, 1994Date of Patent: May 28, 1996Assignee: General Electric CompanyInventors: Stephen M. Cooper, Ronald A. Greenberg, Darryl Nazareth
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Patent number: 5514739Abstract: An improved synthetic resin composition is provided that consists essentially of 100 parts by weight of a resin component composed of 50 to 99 (preferably 50 to 90) parts by weight of a melt-processable polyester that does not form an anisotropic melt phase and 1 to 50 (preferably 10 to 50) parts by weight of a liquid crystal polyester that is capable of forming an anisotropic melt phase, to which has been added 0.01 to 0.5 part by weight of a phosphorus compound. The presence of the phosphorus compound has been found to facilitate the fibrillation of the liquid crystal polyester component during molding so as to form fibrils within the resulting molded article having an aspect ratio of 6 or more. The resulting molded article accordingly exhibits significantly enhanced mechanical properties.Type: GrantFiled: November 9, 1994Date of Patent: May 7, 1996Assignee: Polyplastics Co., Ltd.Inventors: Tomoyuki Aketa, Takayuki Ishikawa
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Patent number: 5512339Abstract: This invention relates to decomposable polyamide masses for packaging materials containing 5 to 25% by weight of an addition of linear, oligomeric aliphatic polyesters or polycarbonates with molecular weights from 800 to 4000. These additives preferably consist of polyesters of aliphatic diols and dicarboxylic acids having up to 10 carbon atoms or aliphatic carbonates having up to 10 carbon atoms.The use of such mixtures for easily degradable, decomposable polyamide packages is also claimed, in particular in the form of films or thin walled injection moulded parts for (food) packaging.Type: GrantFiled: October 22, 1993Date of Patent: April 30, 1996Assignee: Bayer AGInventors: Ralf Dujardin, Rolf Dhein, Martin Wandel
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Patent number: 5498386Abstract: This invention relates to an improved process for making colored polyamide fibers. The process involves adding about 0.1 to about 3.0 weight percent polycarbonate to a polyamide melt prior to extruding the melt through a spinneret to make colored fibers. The invention also encompasses the resultant fibers.Type: GrantFiled: March 16, 1994Date of Patent: March 12, 1996Assignee: E. I. Du Pont de Nemours and CompanyInventors: Perry H. Lin, Yanhui Sun
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Patent number: 5478887Abstract: A polymer blend comprising an aliphatic polyamide matrix and a dispersed phase of a polycarbonate and a compatibilizing agent having pendant succinic anhydride groups or epoxide groups, made under such blending conditions that the polymer stock melt temperature is 290.degree.-350.degree. C., has a combination of excellent toughness and stiffness properties.Type: GrantFiled: July 26, 1993Date of Patent: December 26, 1995Assignee: E. I. Du Pont de Nemours and CompanyInventor: Gia Huynh-Ba
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Patent number: 5455310Abstract: A thermoplastic composition which comprises a siloxane polycarbonate block copolymer wherein the polysiloxane segments of the copolymer are of the formula: ##STR1## where R.sup.1, R.sup.2, Y, D, A, X, A' and E are as defined herein, and high heat polycarbonates containing recurring or repeating polycarbonate units of the formula: ##STR2## wherein Z is --O--, --N(R.sup.3)-- or a mixture thereof and R.sup.3 is selected from hydrogen, hydrocarbyl and halogen-substituted hydrocarbyl.Type: GrantFiled: August 15, 1994Date of Patent: October 3, 1995Assignee: General Electric CompanyInventors: James F. Hoover, Paul D. Sybert
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Patent number: 5438105Abstract: A polyamic acid composite comprising i) a polyamic acid having three dimensional network molecular structure obtained by a ring-opening polyaddition reaction of a tetracarboxylic acid dianhydride with an aromatic diamine and a tri- or tetramino compound and ii) (a) a high polymer component having a different molecular structure from the polyamic acid, which is dispersed in the three dimensional network molecular structure of the polyamic acid and of which molecular chains are interpenetrated with molecular chains of the polyamic acid or (b) a curable resin composition which is dispersed in the three dimensional network molecular structure of the polyamic acid and which is capable of forming a cured resin of which molecular chains are interpenetrated with molecular chains of the polyamic acid, and a polyimide composite obtained from the polyamic acid composite, and process for production thereof.Type: GrantFiled: February 28, 1994Date of Patent: August 1, 1995Assignee: Toho Rayon Co., Ltd.Inventor: Yasuhisa Nagata
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Patent number: 5391641Abstract: The invention relates to segmented N-alkyl polyurethane amides having an average molecular weight of 5,000 to 250,000, to a process for their production and to their use for the production of materials which may be used in the medical field.Type: GrantFiled: August 12, 1993Date of Patent: February 21, 1995Assignee: Bayer AktiengesellschaftInventors: Herbert Hugl, Burkhard Kohler, Rolf Dhein
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Patent number: 5387639Abstract: Blends of polyester-carbonates and/or polyarylate resins with polyetherimide resins are thermoplastically molded to obtain ductile, high distortion temperature articles. The polyester-carbonate resin or polyarylate resin is selected from a particular class prepared by polymerization of a dihydric phenol, and an ester precursor which is terephthalic acid, optionally with a proportion of isophthalic acid.Type: GrantFiled: October 23, 1992Date of Patent: February 7, 1995Assignee: General Electric CompanyInventors: Paul D. Sybert, Raymond H. Glaser
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Patent number: 5369190Abstract: Crosslinking components for cationic paint binders which are reaction products of hydroxyl-functional carbamate compounds with half-blocked diisocyanates are described. The carbamate compounds are reaction products of cyclic organic carbonates with aliphatic monoamines and/or diamines and/or triamines and/or tetraamines and/or alkanolamines, all such amines having primary and/or secondary amino groups. The crosslinking components produced according to the invention, in combination with resin components carrying hydroxyl groups and/or primary or secondary amino groups, preferably with those based on epoxide/amine adducts or containing similar molecular units, give binders which can be baked at temperatures of 140.degree. C. and higher.Type: GrantFiled: November 10, 1993Date of Patent: November 29, 1994Assignee: Vianova Kunstharz, A.G.Inventors: Helmut Honig, Herbert Matzer, Georg Pampouchidis, Willibald Paar
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Patent number: 5321086Abstract: A polycarbonate resin composition which comprises (a) a polycarbonate containing a repeating unit (I) derived from tetrahalogenobisphenol A and a repeating unit (II) derived from bisphenol A and trihalogenophenoxy groups bonded at the terminals, and (b) at least one thermoplastic resin selected from the group consisting of (i) a polyamide resin selected from the group consisting of nylon 6 and nylon 6,6, (ii) a thermoplastic polyester selected from the group consisting of polyethylene terephthalate and polybutylene terephthalate and (iii) a polyolefin. The polycarbonate resin composition has desirable physical properties including desirable mechanical properties, moldability, heat resistance, flame retardance, thermostability, rigidity, impact resistance, solvent resistance, and fluidity, and can be used to make parts for automobiles, home electric appliances, and office automation appliances.Type: GrantFiled: December 1, 1992Date of Patent: June 14, 1994Assignee: Idemitsu Petrochemical Co., Ltd.Inventors: Shiro Kozakura, Takashi Komatsu
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Patent number: H1601Abstract: A blend of polyketone and polycarbonate polymers is presented. The polymer blend is produced by blending polyketone polymer, polycarbonate polymer, and a reactive graft compatibilizer. The a reactive graft compatibilizer compatibilizes the blend.Type: GrantFiled: March 2, 1995Date of Patent: October 1, 1996Assignee: Shell Oil CompanyInventors: Joseph M. Machado, Randall P. Gingrich