Solid Polymer Derived From Ethylenically Unsaturated Reactant Only Is Derived From A Reactant Containing A Carboxylic Acid Or Derivative Patents (Class 525/183)
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Patent number: 5013786Abstract: Filler-containing thermoplastic molding materials having an improved surface and improved coatability contain, as essential components,(A) from 42 to 90% by weight of a thermoplastic polyamide,(B) from 9.5 to 55% by weight of fibrous or particulate fillers or mixtures of these and(C) from 0.5 to 3% by weight of a rubber impact modifier having reactive groups.Type: GrantFiled: February 10, 1989Date of Patent: May 7, 1991Assignee: Basf AktiengesellschaftInventors: Robert Payne, Walter Goetz, Uwe Wolf
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Patent number: 5013518Abstract: This invention relates to a process for the production of shrinkable sheet products from copolyamides with good processing properties. The copolyamides consist of .epsilon.-caprolactam and equimolar quantities of dimeric fatty acids and diamines.Type: GrantFiled: July 17, 1989Date of Patent: May 7, 1991Assignee: Bayer AktiengesellschaftInventors: Werner Nielinger, August Bockmann, Hermann Brinkmeyer, Helmut Schulte
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Patent number: 5010136Abstract: An impact-resistant polyamide resin is produced bypreparing Mixture (I) by melt-kneading (A) a polyamide resin with (B) at least one modified olefin polymer selected from the group consisting of olefin rubbers having an unsaturated dicarboxylic acid anhydride added thereto, .alpha.-olefin polymers having an unsaturated dicarboxylic acid anhydride added thereto, crystalline ethylene-.alpha.-olefin copolymers having an unsaturated dicarboxylic acid anhydride added thereto, and ethylene-ethylenic unsaturated ester copolymers having an unsaturated dicarboxylic acid anhydride added thereto,preparing Mixture (II) by melt-kneading Mixture (I) with (C) a polyfunctional compound having in the molecule two or more functional groups reactive with carboxyl group, carboxylic acid anhydride group or amino group, andmelt-kneading Mixture (II) with (D) a polyamide resin.Type: GrantFiled: August 9, 1989Date of Patent: April 23, 1991Assignee: Sumitomo Chemical Company, LimitedInventors: Tadayuki Ohmae, Yoshiki Toyoshima, Kentaro Mashita, Noboru Yamaguchi, Jinsho Nambu
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Patent number: 5010138Abstract: The invention relates to thermoplastic interpolymers having a certain chemical composition and to their use in thermoplastic molding compounds of polyamides and styrene copolymers and/or graft polymers for the production of improved blends of polyamides and styrene copolymers and/or graft polymers, particularly ABS polymers, having homogeneous surfaces and improved mechanical properties. The interpolymers themselves are produced by compounding of polyamides and copolymers based on styrenes and/or acrylonitrile and/or (meth)acrylates with primary or secondary alcohols and at least one ester of (meth)acrylic acid with a tertiary C.sub.4-10 alcohol in the melt. The interpolymers act as compatibility promoters in the blends and lead to a surprising improvement in a number of properties of thermoplastic molding compounds.Type: GrantFiled: August 7, 1989Date of Patent: April 23, 1991Assignee: Bayer AktiengesellschaftInventors: Uwe Westeppe, Karl-Erwin Piejko, Christian Lindner
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Patent number: 5003009Abstract: Impact-resistant nylon molding materials containA a linear, thermoplastic nylon composed of radicals derived from terephthalic acid and isophthalic acid and alkanediamines of 4 to 10 carbon atoms, andB from 5 to 60% by weight, based on A, of one or more copolymers of1. from 50 to 80% by weight of ethylene,from 20 to 50% by weight of a primary or secondary C.sub.2 -C.sub.8 -alkyl ester of (meth)acrylic acid andfrom 0.5 to 10% by weight of a monomer possessing an acidic functional group or a latent acidic functional group, or2. from 70 to 98% by weight of a primary or secondary C.sub.2 -C.sub.8 -alkyl ester of (meth)acrylic acid,from 1 to 30% by weight of a monomer possessing an acidic functional group or a latent acidic functional group, andfrom 1 to 5% by weight of a monomer containing 2 or more olefinic double bonds in the molecule,the percentages stated in 1. and 2. summing to 100% in each case, andC. if required, effective amounts of additives.Type: GrantFiled: July 20, 1988Date of Patent: March 26, 1991Assignee: BASF AktiengesellschaftInventors: Hans G. Matthies, Horst Reimann
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Patent number: 4996264Abstract: A thermoplastic and elastomeric composition comprising a polyamide resin and a rubber component, wherein the rubber component is dispersed in the form of crosslinked particles in the polyamide resin.Type: GrantFiled: August 23, 1988Date of Patent: February 26, 1991Assignee: Nippon Zeon Co., Ltd.Inventors: Mitsuyoshi Aonuma, Tatsunosuke Suzuki, Satoru Isomura, Koichi Nishimura
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Patent number: 4996263Abstract: It is desirable to increase the modulus of rubbers utilized in a wide variety of applications. This invention discloses a technique for modifying rubbers to improve their modulus without sacrificing other properties. The subject invention more specifically relates to a process for preparing a rubber composition having a high modulus which comprises reacting maleic anhydride with at least one polydiene rubber and at least one nylon.Type: GrantFiled: October 6, 1988Date of Patent: February 26, 1991Assignee: The Goodyear Tire & Rubber CompanyInventors: James B. Pyke, Richard G. Bauer, Martin P. Cohen, Pawan K. Handa
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Patent number: 4990567Abstract: A molded amide resin product prepared by injecting a mixture comprising a .omega.-lactam, a polymerization catalyst, a polymerization cocatalyst, a modified olefin and a polyamide soluble in a molten .omega.-lactam into a mold at a temperature not lower than the melting point of the .omega.-lactam, followed by molding.Type: GrantFiled: June 18, 1990Date of Patent: February 5, 1991Assignee: Mitsubishi Kasei Polytec CompanyInventors: Yo Isegawa, Makoto Watanabe
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Patent number: 4988790Abstract: Substances suitable for use as retention agents contain a cationic polyacrylamide with recurrent dialkylaminoalkylacrylamide units and a polyamidamine or a polyamine.Type: GrantFiled: January 28, 1988Date of Patent: January 29, 1991Assignee: Wolff Walsrode AGInventors: Rudolf Behn, Branislav Bohmer, Lutz Hoppe, Klaus Szablikowski
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Patent number: 4988764Abstract: The polypropylene resin composition of the present invention can be obtained by melt mixing:(a) a modified polypropylene obtained by grafting a crystalline propylene-ethylene block copolymer with an unsaturated carboxylic acid, or a crystalline polypropylene containing the modified polypropylene,(b) a polyamide, and(c) a modified ethylene-.alpha.-olefin copolymer rubber obtained by grafting an ethylene-.alpha.olefin copolymer rubber with an unsaturated carboxylic acid. This composition is superior in low temperature impact resistance, rigidity, heat resistance and oil resistance.Type: GrantFiled: March 27, 1990Date of Patent: January 29, 1991Assignee: Toyota Jidosha Kabushiki KaishaInventors: Takeyoshi Nishio, Toshio Yokoi, Takao Nomura, Kouhei Ueno, Tomohiko Akagawa, Ikunori Sakai, Yasufumi Takasaki
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Patent number: 4987189Abstract: New polycaprolactam-based polymer compositions have been prepared by polymerising caprolactam in the presence of a quantity of nitrile rubber not exceeding 25% by weight of the total mixture weight, and preferably 5-20% by weight.The polymerisation is conducted in the presence of anionic initiators and anionic polymerisation activators.The new compositions obtained are extremely uniform, and have physical and elasticity characteristics which substantially coincide with nylon-6. There resistance to impact and deformation is however substantially higher.Type: GrantFiled: October 3, 1985Date of Patent: January 22, 1991Assignee: Consiglio Nazionale Delle RicercheInventors: Saverio Ruso, Giovanni C. Alfonso, Enrico Pedemonte, Antonio Turturro, Ezio Martuscelli
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Patent number: 4980419Abstract: The invention relates to polymers containing a lactam functionality and having in its molecule repeating units of the general formula: ##STR1## wherein R.sup.1 is C.sub.1 to C.sub.18 alkyl;R.sup.2 is oxygen, sulfur or amino;R.sup.3 is alkylene having 3 to 6 carbon atoms optionally substituted with lower alkyl;Z is hydrogen, an alkali metal, an alkaline earth metal or ammonia;n has a value of from 30 to 3,500 andt has a value of from 2 to 8;and to the use and synthesis of said polymer.Type: GrantFiled: July 3, 1989Date of Patent: December 25, 1990Assignee: GAF Chemicals CorporationInventor: Ratan K. Chaudhuri
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Patent number: 4980389Abstract: A method of making polyetherimide foam precursors and flexible polyetherimide foams having improved specific tensile strength, resistance to high temperatures and flame, low density and flexibility at both high and cryogenic temperatures. 4,4'-oxydiphthalic anhydride (ODPA) is reacted with an alcohol to produce a diester, which is then reacted with a suitable monomeric polyamine such as meta phenylene diamine to produce a precursor. This material is dried to a solid block or powder. Upon heating, foaming occurs, resulting in a fine celled white friable mass. The foam is cured by heating for a suitable period and is ready for use.Type: GrantFiled: April 3, 1990Date of Patent: December 25, 1990Assignee: Irbit Research & Consulting AGInventors: Francis U. Hill, Paul F. Schoenzart, Werner P. Frank
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Patent number: 4977213Abstract: Polyamide-based molding compositions having enhanced flexibility and resilience, especially at low temperatures, are prepared from (1) semirigid copolyamides prepared from fatty acid dimers, (2) elastomers containing moieties compatible or reactive with such copolyamides (1) and comprising olefinic copolymers bearing carboxyl and/or carboxylate groups, copolyester-amides, polyurethanes, organopolysiloxane and polyurethane block copolymers, and copolymers produced from a latex which comprises suitable functional groups, and, optionally, (3) conventional polyamides.Type: GrantFiled: June 8, 1987Date of Patent: December 11, 1990Assignee: Rhone-Poulenc Specialites ChimiquesInventors: Bruno Giroud-Abel, Jean Goletto
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Patent number: 4977216Abstract: Thermoplastic polyamide compositions consisting essentially of 75-90 weight percent nylon 6, nylon 66 or nylon 66/6 blends (nylon 6.ltoreq.50%) with 10-25 weight percent ethylene ionomer containing softening comonomer are characterized by a unique combination of high stiffness and toughness, and freedom from mold deposit.Type: GrantFiled: April 5, 1990Date of Patent: December 11, 1990Assignee: E. I. Du Pont de Nemours and CompanyInventor: Andri E. Elia
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Patent number: 4966941Abstract: It has now been found that a unique combination of additives makes semi-crystalline polyamides readily processible by extrusion blowmolding to make hollow, stiff parts of various shapes. The compositions consist essentially of semicrystalline polyamide, a selected toughening agent and an anhydride-rich ethylene copolymer, and a fibrillar polytetrafluoroethylene.Type: GrantFiled: January 19, 1989Date of Patent: October 30, 1990Assignee: E. I. Du Pont de Nemours and CompanyInventor: Pallatheri M. Subramanian
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Patent number: 4965318Abstract: Thermoplastic molding materials contain(A) from 5 to 95% by weight of a nylon and(B) from 5 to 95% by weight of a copolymer composed of(B.sub.1) from 50 to 99.9% by weight of a styrene of the general formula I ##STR1## where R.sup.1 is alkyl or 1 to 4 carbon atoms or hydrogen, R.sup.2 is alkyl of 1 to 6 carbon atoms or halogen and m is 0, 1, 2 or 3,(B.sub.2) from 0.1 to 30% by weight of a monomer containing epoxide groups (II) ##STR2## or of a monomer containing lactam groups (III) ##STR3## or of a monomer containing halobenzyl groups (IV) ##STR4## where R.sup.3 is a divalent, branched or straight-chain alkyl group of 2 to 15 carbon atoms, R.sup.4 is alkyl of not more than 6 carbon atoms, X is halogen, n is 1, 2 or 3 and r is 0, 1, 2 or 3, and(B.sub.3) from 0 to 48% by weight of further comonomers.Type: GrantFiled: July 14, 1988Date of Patent: October 23, 1990Assignee: BASF AktiengesellschaftInventors: Christof Taubitz, Erhard Seiler, Juergen Hambrecht, Konrad Mitulla, Horst Reimann
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Patent number: 4945129Abstract: The present invention is a polyamide composition with high impact strength which is retained at low temperatures. The composition consists of from 0.5 to 95 percent by weight of at least one amine terminated polyamide. The amine terminated polyamide comprises from 3 to 97 mole percent of the polyamide acid molecules having amine groups as at least two end groups of the polyamide acid molecule. The composition further contains 3 to 99.5 percent by weight of a polyamide having at least 50 mole percent of its end groups as acid groups or capped groups. The composition further has from 2 to 50 percent, and preferably 15 to 30 percent based on the total weight of the polymer of a reactive polymer. The reactive copolymer is based on a copolymer of ethylene and an .alpha.-olefin having 3 to 8 carbon atoms. This copolymer is identified as the "ethylene copolymer".Type: GrantFiled: January 26, 1989Date of Patent: July 31, 1990Assignee: Allied-Signal Inc.Inventors: Charles D. Mason, John A. Young, John C. Haylock, Ian C. Twilley
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Patent number: 4937289Abstract: Disclosed herein is a process for producing a polyamide comprising polymerizing at least one monomer of polyamide in the presence of(1) a hydrocarbon polymer having at least one group selected from the group consisting of a carboxyl group, a derivative group of carboxylic acid, an amino group, and a hydroxyl group, or(2) a polymer produced by reacting the hydrocarbon polymer with a polyamide, or polymerizing at least one monomer of polyamide in the presence of the hydrocarbon polymer.Type: GrantFiled: August 4, 1988Date of Patent: June 26, 1990Assignee: Mitsubishi Kasei CorporationInventors: Shinichiro Koga, Masaaki Miyamoto, Hidemi Nakanishi
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Patent number: 4923925Abstract: Resin compositions of (A) 50-95 percent by weight of a polyamide and (B) 5-50 percent by weight of a modified polyolefin containing in side chains 0.005-5 molar percent of functional groups expressed by formulas (I) and/or (II) below and 0.005-5 molar percent of functional groups expressed by formulas (III) and/or (IV) below provide molds having a high impact resistance and are applicable to automobile parts. ##STR1## Where R.sub.1 represents hydrogen or methl and wherein R.sub.2, R.sub.3 and R.sub.4 represent hydrogen, aliphatic, alicyclic or aromatic residual groups having 1-30 carbon atoms.Type: GrantFiled: September 1, 1987Date of Patent: May 8, 1990Assignee: Toray Industries, Inc.Inventors: Kazumasa Chiba, Kazuhiko Kobayashi, Osamu Ueno
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Patent number: 4923924Abstract: Thermoplastic blend compositions comprise a polyamide, a carboxylated polyphenylene ether resin and an impact modifier. The carboxylated polyphenylene ether resin is the product of melt mixing a mixture consisting essentially of polyphenylene ether resin and a minor amount of an ethylenically unsaturated carboxylic acid compound. The impact modifier may comprise a graft of a vinyl aromatic polymer on a rubbery substrate; a vinyl aromatic-conjugated diene-vinyl aromatic triblock polymer; a carboxylated vinyl aromatic-conjugated diene-vinyl aromatic triblock polymer; a carboxylated alpha-olefin polymer; a copolymer of an alpha-olefin compound and an unsaturated carboxylic compound; a graft of a rigid acrylic polymer on a rubber substrate; a linear low density polyethylene; or mixtures thereof.Type: GrantFiled: March 22, 1988Date of Patent: May 8, 1990Assignee: Borg-Warner Chemicals, Inc.Inventors: Thomas S. Grant, Ronald L. Jalbert, David Whalen, Brenda A. Bartges, Tracey L. Thompson
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Patent number: 4885340Abstract: A high impact polyamide composition comprising at least one polyamide, at least one ethylene ionomer resin and at least one oxide or carbonate compound is specific weight proportions, wherein the polyamide has a relative viscosity of at least 3.15 in 98% sulfuric acid. The composition may further comprise an elastomeric olefin copolymer, an elastomeric styrene copolymer and/or a polyvalent alcohol. The polyamide composition has excellent mechanical strength, thermal resistance and impact strength even at weld-line portions so that it can advantageously be employed for manufacturing various shaped articles, such as automobile parts and sporting goods.Type: GrantFiled: March 28, 1988Date of Patent: December 5, 1989Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Tetsuo Hamada, Junichi Nakahashi, Ryoichi Nakai
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Patent number: 4882382Abstract: Dispersions of core-shell polymers in caprolactam solutions of telechelic polymers capable of being polymerized to form rubber-modified nylon-6 block copolymers having improved impact strength wherein the core-shell polymer comprises a cross-linked elastomer core and a hard thermoplastic polymer shell and wherein the telechelic polymers preformed or formed in situ, are capped with lactam polymerization initiator groups.Type: GrantFiled: June 2, 1987Date of Patent: November 21, 1989Assignee: Monsanto CompanyInventor: Kishore Udipi
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Patent number: 4874817Abstract: Mixtures of imidized acrylic polymers and polyamides are described which have good flexural modulus properties.Type: GrantFiled: March 23, 1983Date of Patent: October 17, 1989Assignee: E. I. Du Pont De Nemours and CompanyInventors: Harold K. Inskip, Marion G. Waggoner
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Patent number: 4874818Abstract: A primer composition usable for steel sheet and plastic sheet in vehicle bodies consists mainly of a polycaprolactone graft polymer obtained by graft-polymerizing a styrene-butadiene-styrene block copolymer or its hydrogenated polymer with a ring-opened polymer of .epsilon.-caprolactone and having a grafting ratio of the ring-opened polymer within a range of 0.5.about.50% by weight.Type: GrantFiled: July 28, 1987Date of Patent: October 17, 1989Assignee: Nippon Oil and Fats Co., Ltd.Inventors: Shosaku Yamamoto, Kazuo Kakinuma, Hiroshi Ishioka, Fumio Sodeyama, Junji Mayumi, Riichiro Maruta
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Patent number: 4866127Abstract: Improved thermoplastic elastomeric compositions adopted for easy conversion, e.g., by injection molding or extrusion techniques, into useful shaped articles having good abrasion and tear resistance, and marked resistance to oils and fats, include a polyetheramide, advantageously a polyetheresteramide, and a nitrile rubber, e.g., a copolymer of 1,3-butadiene or isoprene with (meth)acrylonitrile.Type: GrantFiled: November 26, 1986Date of Patent: September 12, 1989Assignee: AtochemInventors: Jean-Pierre Jacquemin, Gerard Deleens
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Patent number: 4851473Abstract: High impact resistant polyamide resins containing a polyamide matrix comprising at least one amorphous polyamide and dispersed particles of a toughener formed of a blend of ethylene, propylene, diene monomer rubber containing grafted succinic anhydride groups and an ionomer derived from ethylene, an alkyl acrylate and acrylic acid or methacrylic acid. The toughener has a particle size of less than about 360 nm, as determined by a small angle x-ray scattering technique. The toughener is present in the resin in the amount of at least 15% by weight.Type: GrantFiled: January 15, 1988Date of Patent: July 25, 1989Assignee: E. I. Du Pont de Nemours and CompanyInventor: James F. Dunphy
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Patent number: 4849476Abstract: A flexible thermoplastic resin composition is disclosed comprising (A) from 5 to 59 parts by weight of a polyamide resin and (B) from 95 to 41 parts by weight of an ethylene copolymer containing (a) from 50 to 90% by weight of ethylene, (b) from 5 to 49% by weight of an .alpha.,.beta.-unsaturated carboxylic acid alkyl ester, and (c) from 0.5 to 10% by weight of maleic anhydride. The resin composition of the invention has excellent cold resistance, particularly impact strength at low temperatures, and an excellent balance between rubbery elasticity and rigidity in addition to excellent thermal resistance, abrasion resistance, and chemical resistance.Type: GrantFiled: February 17, 1987Date of Patent: July 18, 1989Assignee: Sumitomo Chemical Co., Ltd.Inventors: Kentaro Mashita, Jinsho Nambu, Shoji Ishii
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Patent number: 4847329Abstract: This invention is directed to polymers (including oligomers) that contain (N-substituted carbamoyloxy)alkanoyloxyalkyl acrylates, to a process for their preparation by reacting the carbamoyloxy alkanoyloxyalkyl acrylates with other ethylenically unsaturated monomers, and to coating, ink, adhesive, and sealant compositions (including the cured coatings, inks, adhesives, and sealants) that are obtained by crosslinking the above compositions by various means. The cured compositions, which are, for example, high-quality industrial finishes, sealants or encapsulants, are made by incorporation of various conventional crosslinking agents and other normally-used formulating ingredients with the polymeric compositions of the invention.Type: GrantFiled: June 30, 1987Date of Patent: July 11, 1989Assignee: Union Carbide CorporationInventors: Joseph V. Koleske, Donald F. Smith, Jr., Robert J. Weber, Jr.
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Patent number: 4847330Abstract: Thermoplastic molding materials contain, as essential components,(A) from 40 to 95% by weight of a nylon and(B) from 5 to 60% by weight of a noncrosslinked copolymer based on(a) from 55 to 79.5% by weight of ethylene,(b) from 20 to 40% by weight of one or more primary or secondary C.sub.2 -C.sub.8 -alkyl esters of acrylic acid or methacrylic acid,(c) from 0.49 to 8% by weight of a monomer having an acid functional group or a latent acid functional group, or of an epoxy-containing monomer of an ethylenically unsaturated monocarboxylic acid, and(d) from 0.01 to 2% by weight of an ethylenically unsaturated dicarboxylic acid or of an anhydride of such an acid.Type: GrantFiled: December 21, 1987Date of Patent: July 11, 1989Assignee: BASF AktiengesellschaftInventors: Christoph Plachetta, Horst Reimann, Rainer Theysohn, Franz G. Mietzner
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Patent number: 4843127Abstract: The present invention includes a reactive elastomeric block co-oligomer; a copolymer containing a lactam, a co-catalyst/coupling agent, and the elastomeric block co-oligomer; and processes to make the block co-oligomer, and the copolymer.The reactive elastomeric block co-oligomer is the reaction product of a polycarboxylic acid, and a reactive moiety which can include a reactive polyether or a reactive polysulfide.The block co-oligomer of the present invention has been found to be useful to make a polymer containing lactam monomers, at least one coupling catalyst compound, and the block co-oligomer with the use of a catalyst.The present invention includes a process of forming the block co-oligomer of a polycarboyxlic acid and a reactive moiety. The reactive moiety can include a reactive polyether of a reactive polysulfide.The present invention further comprises a process of forming the block co-oligomer, and the process to form the lactam-block co-oligomer copolymer.Type: GrantFiled: April 19, 1985Date of Patent: June 27, 1989Assignee: Allied-Signal Inc.Inventors: Murali K. Akkapeddi, David E. Bradley, Thomas D. Gallagher, deceased
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Patent number: 4839425Abstract: A thermoplastic resin composition obtained by melt-mixing:(a) 4 to 95% by weight of a polyphenylene ether resin,(b) 4 to 95% by weight of a polyamide,(c) 1 to 50% by weight of a rubbery polymer, and(d) if necessary, 91% by weight or less of a styrene resin (d)[the sum of the (a), (b), (c) and (d) components is 100% by weight] in the presence of 0.001 to 10% by weight, based on the total weight of the (a), (b), (c) and (d) components, of at least one functional group-containing unsaturated compound having at least one group selected from the class consisting of carboxyl group, acid anhydride group, epoxy group, hydroxyl group, amino group and amido group and 0.001 to 5% by weight, based on the total weight of the (a), (b), (c) and (d) components, of a peroxide. This thermoplastic resin composition is excellent in balance of impact strength of thin molded product, moldability and heat resistance.Type: GrantFiled: March 30, 1987Date of Patent: June 13, 1989Assignee: Japan Synthetic Rubber Co., Ltd.Inventors: Masaaki Mawatari, Tetsuo Itoh, Syuji Tsuchikawa, Shinichi Kimura
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Patent number: 4837264Abstract: High-impact polyamide molding compositions contain as essential components(X) from 40 to 98% by weight, based on (X)+(Y), of a thermoplastic polyamide,(Y) from 2 to 60% by weight, based on (X)+(Y), of a rubberlike polymer which contains, as copolymerized units, an acrylic or methacrylic ester or an unsaturated carboxylic acid,(Z) from 0.001 to 2% by weight, based on (X)+(Y), of a metal compound selected from the group consisting of(Z.sub.1) salts of divalent, trivalent or tetravalent metals with C.sub.2 -C.sub.4 -carboxylic acids,(Z.sub.2) oxides of germanium or antimony and(Z.sub.3) alkyl orthotitanates and dialkyltin dilaurates.Type: GrantFiled: January 5, 1988Date of Patent: June 6, 1989Assignee: BASF AktiengesellschaftInventors: Franz Zahradnik, Karlheinz Ulmerich, Graham E. McKee, Horst Reimann, Richard Pflueger, Rainer Theysohn
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Patent number: 4820771Abstract: Thermoplastically polyamide moulding compositions produced from at least 70% by weight of polyamide, a long-chain polyester, polyether or hydrocarbon polyol and at most 5% by weight of a polyanhydride or polyepoxide.Type: GrantFiled: April 25, 1986Date of Patent: April 11, 1989Assignee: Bayer AktiengesellschaftInventors: Bernhard Mussig, Rolf-Volker Meyer, Bert Brassat, Rolf Dhein
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Patent number: 4818793Abstract: Impact-resistant nylon molding materials containA: a linear, thermoplastic nylon composed of radicals derived from terephthalic acid and isophthalic acid and alkanediamines of 4 to 10 carbon atoms, andB: from 50 to 60% by weight, based on A, of one or more copolymers of1. from 50 to 80% by weight of ethylene, from 20 to 50% by weight of a primary or secondary C.sub.2 -C.sub.8 -alkyl ester of (meth)acrylic acid, and from 0.5 to 10% by weight of a monomer possessing an acidic functional group or a latent acidic functional group, or2. from 70 to 98% by weight of a primary or secondary C.sub.2 -C.sub.8 -alkyl ester of (meth)acrylic acid, from 1 to 30% by weight of a monomer possessing an acidic functional group or a latent acidic functional group, and from 1 to 5% by weight of a monomer containing 2 or more olefinic double bonds in the molecule,the percentages stated in 1. and 2. summing to 100% in each case, andC: if required, effective amounts of additives.Type: GrantFiled: April 17, 1987Date of Patent: April 4, 1989Assignee: BASF AktiengesellschaftInventors: Hans G. Matthies, Horst Reimann
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Patent number: 4810753Abstract: Disclosed herein is a process for producing a polyamide comprising polymerizing at least one monomer of polyamide in the presence of(1) a hydrocarbon polymer having at least one group selected from the group consisting of a carboxyl group, a derivative group of carboxylic acid, an amino group, and a hydroxyl group, or(2) a polymer produced by reacting the hydrocarbon polymer with a polyamide, or polymerizing at least one monomer of polyamide in the presence of the hydrocarbon polymer.Type: GrantFiled: October 22, 1986Date of Patent: March 7, 1989Assignee: Mitsubishi Chemical Industries LimitedInventors: Shinichiro Koga, Masaaki Miyamoto, Hidemi Nakanishi
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Patent number: 4804703Abstract: It has now been found that a unique combination of additives makes mineral-reinforced semi-crystalline polyamides readily processible by extrusion blowmolding to make hollow, stiff parts of various shapes. The compositions consist essentially of semicrystalline polyamide, 15-50 weight percent mineral filler reinforcing agent; 1-25 weight percent of an ionic copolymer of at least one alpha-olefin and at least one alpha, beta-unsaturated carboxylic acid in which the acid moiety is partially neutralized with metal ions, and 0.1 to 3 weight percent of fibrillar fluoropolymer resin. Percents are by weight of compositions.Type: GrantFiled: September 21, 1987Date of Patent: February 14, 1989Assignee: E. I. Du Pont de Nemours and CompanyInventor: Pallatheri M. Subramanian
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Patent number: 4801649Abstract: Ionomers of ethylene, unsaturated carboxylic acid and softening comonomer, e.g. alkyl acrylate and/or alkyl vinyl ether having improved low temperature properties are obtained by direct or graft copolymerization at a temperature of from about 100.degree. to about 200.degree. C., followed by neutralization of the carboxylic acid groups with metal ions, such ionomers being characterized by a low level of chain branching of up to about 5.5 chain branches/1000 backbone methylene units.Type: GrantFiled: July 21, 1987Date of Patent: January 31, 1989Assignee: E. I. Du Pont de Nemours and CompanyInventor: Robert J. Statz
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Patent number: 4795781Abstract: A moldable resin composition comprising (1) a saponified ethylene/vinyl acetate copolymer having an ethylene content ranging from 20 to 80 mole % and a saponification degree of not less than 90%, and a polyamide resin containing terminal carboxyl (--COOH) and terminal amide (--CONRR') groups, wherein the number (A) of the terminal carboxyl groups and the number (B) of terminal amide groups satisfies the relationship: ##EQU1## wherein (R) is a hydrocarbyl group of 1 to 22 carbon atoms and R' is a hydrogen atom or a hydrocarbyl group of 1 to 22 carbon atoms.Type: GrantFiled: July 10, 1986Date of Patent: January 3, 1989Assignees: Mitsubishi Chemical Industries Limited, Nippon Gohsei Kagaku Kogyo Kabushiki KaishaInventors: Masaaki Miyamoto, Eiichi Kamoshida, Hiroshi Takida
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Patent number: 4792587Abstract: A resin composition of the invention, exhibiting the anisotropism when melted, comprises (1) a resin having rigid structure and exhibiting the anisotropism when melted and (2) a resin having a rigid structure portion and a soft structure portion, both resins having been uniformly mixed with each other.Type: GrantFiled: March 16, 1987Date of Patent: December 20, 1988Assignee: Polyplastics Co., Ltd.Inventors: Toshio Kanoe, Tsuneyoshi Okada, Kenji Hijikata
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Patent number: 4791164Abstract: A hotmelt adhesive comprising a compatible mixture of at least one polyamide based on dimeric fatty acid, and at least one copolymer or terpolymer based on ethylene, a method for manufacturing the same, and a method for using the same to adhere plastics and metals.Type: GrantFiled: February 13, 1986Date of Patent: December 13, 1988Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Juergen Wichelhaus, Werner Gruber, Johannes Andres
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Patent number: 4788244Abstract: A flame-resistant composition comprising a blend of (I) polyamide, (II) a brominated polystyrene and (III) a copolymer of an aromatic vinyl compound and an .alpha., .beta.-unsaturated dicarboxylic acid anhydride, wherein the .alpha., .beta.-unsaturated dicarboxylic acid anhydride component of the copolymer is present in an amount of 0.06-0.75 wt % based on the total weight of (I), (II) and (III).Type: GrantFiled: January 27, 1988Date of Patent: November 29, 1988Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Junnichi Nakahashi, Takuo Shigetomi, Shinichi Kai
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Patent number: 4785021Abstract: A method of adsorbing a substance such as an optically active substance, comprising contacting a solution of the substance in a solvent with an adsorbent consisting of a cross-linked polymer comprisingan optically active, synthetic poly(amino acid) represented by the general formula (I): ##STR1## wherein R stands for an organic group, R' stands for hydrogen or an alkyl group and n is an integer of at least 5, which may be protected at a terminal amino group anda carrier polymer supporting said synthetic poly(amino acid) thereon, said carrier polymer having affinity for said solvent. A method for producing the cross-linked polymer is also described.The adsorbent is especially useful for optical resolution of racemic mixtures.Type: GrantFiled: February 5, 1988Date of Patent: November 15, 1988Assignees: Research Development Corp. of Japan, Mitsubishi Kasei CorporationInventor: Hideaki Kiniwa
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Patent number: 4783511Abstract: A process for the preparation of moulded bodies of thermoplastic polyamides, which comprises intensively mixing a polyamide and a masterbatch, converting the mixture by conventional thermoplast processing to moulded bodies and, before use, conditioning the bodies by contact with ambient moisture or, briefly, with water, in which the masterbatch contains at least 5% by weight of a silane substituted by one, 2 or 3 hydrolysable radicals and a functional group which can undergo a chemical reaction, to form a bond, with amino groups and/or carboxyl groups and/or amide groups in the polyamide chain.Type: GrantFiled: June 11, 1987Date of Patent: November 8, 1988Assignee: Ems-Inventa AGInventor: Eduard Schmid
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Patent number: 4780505Abstract: A novel thermoplastic resin composition is provided. It has excellent balance in the physical properties and is usable as shaped articles, sheets and films having excellent appearance in uniformity and smoothness. The thermoplastic resin composition is a blend of a resin composition (D) defined below and a copolymer (C) containing epoxy group, said (D) being composed of modified polypropylene by unsaturated carboxylic acid or anhydride thereof with or without unmodified polypropylene, and polyamide resin. The copolymer (C) is composed of an unsaturated epoxy compound and ethylene, with or without an ethylenically unsaturated compound other than ethylene.Type: GrantFiled: August 22, 1985Date of Patent: October 25, 1988Assignee: Sumitomo Chemical Co., Ltd.Inventors: Kentaro Mashita, Takeshi Fujii, Tadayuki Oomae
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Patent number: 4780358Abstract: A polyamide adhesive composition comprising 100 parts by weight of a polymer component and 0.1 to 5 parts by weight of an aminosilane compound. The polymer component comprises 50 to 99.5% by weight of a polyamide and 0.5 to 50% by weight of a modified polyolefin formed by grafting a polyolefin with an unsaturated compound having a polar group in the molecule and/or a polymer other than polyamides, having a polar group or an aromatic group and a tensile modulus not higher than 2,000 kg/cm.sup.2.Type: GrantFiled: September 8, 1986Date of Patent: October 25, 1988Assignee: Ube Industries, Ltd.Inventors: Bunsaku Ito, Kimio Fukuda, Rikio Hara
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Patent number: 4775721Abstract: A process for producing a polyamide block copolymer is disclosed, which comprises suspension polymerizing a lactam in an organic suspending medium in the presence of an anionic polymerization catalyst and a polymer activator. The polyamide block copolymer obtained has a granular or powdery form easy to handle.Type: GrantFiled: April 23, 1987Date of Patent: October 4, 1988Assignee: Sumimoto Chemical Company, LimitedInventors: Jiro Horikawa, Masahiro Niwano, Takenobu Kanazawa
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Patent number: 4773624Abstract: Into a material based on a caoutchouc-type or caoutchouc-containing mixture for producing hard rubber, there is incorporated a pre-mix containing high-strength organic fibers and a liquid hardenable plastic material. The high-strength and temperature resistant material thus obtained is particularly suitable for the attenuation of noise in combustion engines when heavy-weight fillers are also added to such material. Engine components like, for example, valve covers, timing gear covers and oil pans can be manufactured from this material.Type: GrantFiled: April 28, 1986Date of Patent: September 27, 1988Assignee: Semperit AktiengesellschaftInventors: Josef Affenzeller, Wolf-Dieter Jost
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Patent number: 4772653Abstract: Tough, stain-resistant microwave cookware can be fabricated from an injection-moldable thermoformable blend, comprising:A. a thermoformable interpolymer, comprising at least one unsaturated dicarboxylic acid compound polymerized with at least one vinyl monomer, in an amount between about 25 and about 75 weight % based on the weight of the unfilled blend, andB. at least one thermoformable polymer, selected from the group consisting of polycarbonates (including polyestercarbonates), poly(aryl ether sulfone) resins, polyarylates, and polyetherimides in an amount between about 75 and about 25 weight % based on the weight of the unfilled blend.Type: GrantFiled: September 18, 1987Date of Patent: September 20, 1988Assignee: Amoco CorporationInventor: Lawrence A. McKenna
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Patent number: 4771089Abstract: Miscible blends of solids, non-crosslinked polymers are disclosed. The blends comprise from 2 to 95 parts by weight of a water-insoluble, hydrophobic polymer and, correspondingly from 98 to 5 parts by weight of a hydrophilic polymer. The blends are capable of absorbing at least their own weight in water.Type: GrantFiled: July 10, 1985Date of Patent: September 13, 1988Assignee: Minnesota Mining and Manufacturing Co.Inventor: Ronald F. Ofstead