Solid Graft Or Graft-type Copolymer Contains Backbone Derived From Ethylenic Reactants Only Patents (Class 525/69)
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Patent number: 6331595Abstract: A method for the grafting of a monomer onto a polyolefin in the presence of an organic peroxide is disclosed. The polyolefin is a polyolefin that, when molten, undergoes cross-linking in the presence of the organic peroxide. The method comprises: (a) admixing the polyolefin in an extruder with 25 to 6000 ppm, based on the weight of the polyolefin, of an organic peroxide coated onto a carrier polymer and up to 5%, by weight of the polyolefin, of a grafting monomer capable of being grafted onto the polyolefin in the presence of the organic peroxide. The admixture is heated to a temperature above the melting point of both the polyolefin and the carrier polymer under admixing conditions to effect grafting of said grafting monomer onto the polyolefin, said carrier polymer undergoing chain scission in preference to cross-linking in the presence of the organic peroxide at said temperature. Grafted polyolefin is extruded from the extruder.Type: GrantFiled: April 28, 1994Date of Patent: December 18, 2001Assignee: DuPont Canada Inc.Inventors: David John Mitchell, Peter Yates Kelly
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Patent number: 6326435Abstract: The polyester resin composition of the present invention comprises (A) a thermoplastic polyester resin, (B) an olefinic polymer modified with at least one member selected from the group consisting of an unsaturated carboxylic acid and its derivative, and (C) an aliphatic ester having a molecular weight of 400 to 1,000. The polyester resin of the present invention may comprises: (D) a flame retardant, (E) an inorganic flame retardant auxiliary, and others. The thermoplastic polyester resin composition is useful for the fabrication of sliding members (particularly, gears). Polyester resin compositions with improved dimensional accuracy and sliding properties and shaped articles formed therefrom can be obtained from the resin composition of the present invention.Type: GrantFiled: November 3, 2000Date of Patent: December 4, 2001Assignee: Polyplastics Co., Ltd.Inventors: Katsunori Takayama, Kazuhito Kobayashi
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Patent number: 6310148Abstract: A styrene resin composition excellent in luster, rigidity and surface impact strength is provided. A mixed solution of (b1) a homopolymer of a diene monomer or (b2) a copolymer of a styrene monomer and a diene monomer, the copolymer having 15% or less on a weight basis of the styrene structure units, (b3) a copolymer of a styrene monomer and a diene monomer, the copolymer having 20 to 50% on a weight basis of the styrene structure units, (a1) a styrene monomer, and (a2) a (meth)acrylic acid alkyl ester is continuously bulk polymerized in a continuous bulk polymerization line having incorporated therein a tubular reactor with a plurality of mixing elements that have no mobile part fixed inside thereof.Type: GrantFiled: March 28, 2000Date of Patent: October 30, 2001Assignee: Dainippon Ink and Chemicals, Ltd.Inventors: Tsuyoshi Morita, Mamoru Fujihira, Jiro Matsuo
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Patent number: 6306963Abstract: Thermosetting polymers and the electrical laminates made therefrom are disclosed. The laminate comprises a cross-linked product of: a) one or more ethylenically unsaturated aromatic monomers, with fire retardation being optionally contributed by one halogenated monomer, b) a vinyl-terminated polybutadiene or butadiene-styrene copolymer containing either a urethane or an ester group, and c) a chemically modified polyphenylene ether resin, preferably low molecular weight chemically modified polyphenylene ether resin. It has been discovered that an unexpected combination of thermal, electrical, and mechanical properties are obtained from the composition recited herein. Therefore, the composition is ideally suited as a matrix polymer for electrical substrate applications.Type: GrantFiled: September 7, 2000Date of Patent: October 23, 2001Assignees: General Electric Co., GIL TechnologyInventors: Scott A. Lane, Timothy W. Austill, Donald C. Rollen, Herbert Shin-I Chao, Kenneth P. Zarnoch, Hua Guo, David Parrillo, David Peter Reis, Narsi Devanathan, Benny David
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Patent number: 6306968Abstract: Disclosed herein is a golf ball with a cover formed from a polyamide composition and a method of making the same. More specifically, the golf ball has a cover which contains a combination of a polyamide component and an ionomeric component or a non-ionomeric terpolymer component. The cover composition has excellent durability and resistance to cracking, even at cold temperatures. The nylon-ionomer blend is a useful substitute for an ionomer golf ball cover, particularly when a low spin golf ball is desired.Type: GrantFiled: June 14, 1999Date of Patent: October 23, 2001Assignee: Spalding Sports Worldwide, Inc.Inventors: Michelle A. Bellinger, Michael J. Sullivan
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Patent number: 6306975Abstract: Methods for irradiation induced graft polymerization of a monomers, such as styrenes, onto fluoropolymers are provided. The methods, which involve either the use of acids, preferably mineral acids, or creating a rough surface on the fluoropolymer, provide higher levels of grafting of the copolymer than grafting in the absence of the acid or of the rough surface on the fluoropolymer. Also provided are grafted copolymers produced by the methods. Methods for increasing the performance of solid phase assays, such as scintillation proximity assays, are also provided.Type: GrantFiled: January 22, 1998Date of Patent: October 23, 2001Assignee: IroriInventors: Chanfeng Zhao, John E. Lillig, Robert Neeper, Gordon W. Hudson, Anthony W. Czarnik, Zahra Parandoosh, Gary S. David, Xiao-Yi Xiao
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Patent number: 6297326Abstract: A polyolefin, such as polyethylene or polypropylene, is modified by grafting onto the polyolefin backbone from 5 weight percent to about 30 weight percent of 2-hydroxyethyl methacrylate. Suitable polyethylene compositions for grafting include ultra high molecular weight polyethylene, high density polyethylene, ultra low density polyethylene, low density polyethylene, linear low density polyethylene and polypropylene.Type: GrantFiled: October 18, 1996Date of Patent: October 2, 2001Assignee: Kimberly-Clark CorporationInventors: James Hongxue Wang, David Michael Schertz
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Patent number: 6288166Abstract: The positively chargeable toner includes a binder resin and a coloring agent, the binder resin including (a) a resin (1) capable of forming a matrix in the toner, the resin (1) being a hybrid resin of a polyester resin and a vinyl resin; and (b) a resin (2) capable of forming a domain dispersed in the matrix formed by the resin (1), the resin (2) being a vinyl resin having a positive charge functional group. This positively chargeable toner has a good evenness of chargeability and a high charging-up speed with a small proportion of a reversely charged toner upon triboelectric charging. Moreover, in a heat roller fixing method, fixing at a low temperature can be performed without using an offset inhibiting liquid.Type: GrantFiled: August 17, 1994Date of Patent: September 11, 2001Assignee: Kao CorporationInventors: Shin-ichi Sata, Yasuhiro Hidaka, Katsutoshi Aoki, Hiroyuki Kawaji, Masayuki Maruta
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Publication number: 20010011784Abstract: A bulk polymerized grafted and crosslinkable thermoplastic polyolefin powder composition having elasticity and flexibility properties, which is in the form of a powder intended for the production of flexible coatings by free flow over a hot mold, characterized in that it contains:Type: ApplicationFiled: March 26, 2001Publication date: August 9, 2001Applicant: Plastic Omnium Auto InterieurInventors: Dominique Valligny, Tony Marciniak
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Publication number: 20010011116Abstract: The present invention relates to a thermoplastic resin composition with excellent long-term heat-aging properties, comprising:Type: ApplicationFiled: February 5, 2001Publication date: August 2, 2001Applicant: Techno Polymer Co., Ltd.Inventors: Takashi Kurata, Yukio Hosaka
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Patent number: 6268430Abstract: Disclosed are ionomers comprising functionalized polyolefins having fluoroalkyl sulfonate pendant groups and ionically conductive compositions formed therefrom by the addition of solvents.Type: GrantFiled: June 7, 2000Date of Patent: July 31, 2001Assignee: E. I. du Pont de Nemours and CompanyInventors: Susan Kuharcik Choi, Christopher Marc Doyle, Mark Gerrit Roelofs, Lin Wang, Zhen-Yu Yang
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Patent number: 6265483Abstract: The invention relates to polyazacycloalkanes having 3, 4 or 5 nitrogen atoms, tri-, tetra- or penta-azamacrocyclic transition metal complexes and processes for the production of said polyazacycloalkanes. The object of the invention is to form polyazacycloalkanes able to trap metal cations and in particular U, Pu, Am, Ce, Eu, Al, Gd, Cr, Mn, Fe, Co, Ni, Cu, Zn, Ag, Cd, Sn, Au, Mg or Pb or complexes able to trap in particular oxygen in a gaseous mixture. The invention more particularly applies to the treatment of liquid effluents from nuclear power stations.Type: GrantFiled: November 12, 1998Date of Patent: July 24, 2001Assignee: Commissariat a l'Energie AtomiqueInventors: Roger Guilard, Hervé Chollet, Philippe Guiberteau, Panayotis Cocolios
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Publication number: 20010006759Abstract: Radiation sensitive compositions, processes for using the compositions, and articles of manufacture comprising the compositions. The compositions of the invention are use to form flexible coatings having a dielectric constant of 3 or less. The compositions comprise a resin binder and a polybutadiene that comprises one or more internal epoxide groups. In preferred aspect of the invention, the compositions of the invention further comprise a crosslinking agent capable of solvating the remaining constituents of the composition. The coatings are used for the manufacture of electronic and other devices.Type: ApplicationFiled: September 8, 1998Publication date: July 5, 2001Applicant: Charles R. Shipley Jr.Inventors: CHARLES R. SHIPLEY, JAMES G. SHELNUT, WADE SONNENBERG
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Patent number: 6235840Abstract: An impact modifier for thermoplastic polyamides comprises: (A) an elastomeric olefin copolymer; and (B) a resinous olefin homopolymer or copolymer wherein at least one of (A) and (B) is maleated; and wherein the melt flow index of the resulting composition measured at 230° C. and 2.16 kg weight is at least 3 g per 10 minutes.Type: GrantFiled: March 22, 2000Date of Patent: May 22, 2001Assignee: Uniroyal Chemical Company, Inc.Inventors: Seshan Thiruvengada, Robert C. Constable
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Patent number: 6228948Abstract: Modified polymers, particularly polyolefins with improved flow over that of polyolefin alone, are produced by reacting polypropylene, maleic anhydride monomer, and a peroxy initiator in a twin-screw extruder. The maleic anhydride monomer is injected as a fluid and is grafted onto the base polypropylene during the degradation/chain scissioning process. Novel, highly-grafted polymers with high melt flow and other useful properties are produced in pellet form.Type: GrantFiled: January 15, 1999Date of Patent: May 8, 2001Assignee: E. I. du Pont de Nemours and CompanyInventors: Vicki Flaris, David John Mitchell
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Patent number: 6214914Abstract: A compound comprising a blend of polypropylene with the reaction of a functionalized polypropylene and polyether amine in which the polyether amine is grafted into the functionalized polypropylene in a customary mixing apparatus is disclosed. The blend may include an elastomer such as EP rubber and/or a filler such as glass. A process for producing the reaction product of the functonalized polypropylene and the polyether amine by melting with polypropylene in a customary mixing apparatus is also disclosed. Blends of the present invention are advantageously useful to prepare paintable automotive body parts. A polyether monoamine that contains from about 36 to about 44 ethylene units and from about 1 to about 6 propylene units, and processes and blends using same.Type: GrantFiled: August 3, 1999Date of Patent: April 10, 2001Assignee: Huntsman Petrochemical CorporationInventors: Randall Keith Evans, Richard J. G. Dominguez, Richard J. Clark
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Patent number: 6211309Abstract: The present invention relates to water-dispersible materials (e.g. fibers or films) and to a method of producing same. The materials of the invention comprise a water soluble component, for example, a sulfonated polycondensate thermoplastic, and a modifying auxiliary component, for example, a low melt temperature thermoplastic.Type: GrantFiled: June 29, 1998Date of Patent: April 3, 2001Assignee: BASF CorporationInventors: Stanley A. McIntosh, Harold R. Vickery
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Patent number: 6204354Abstract: The instant invention teaches a method for enabling the formation of a high damping, soft polymer gel. The method includes: reacting a poly(disubstituted ethylene-co-maleimide) polymer with a maleated polyalkylene and an alkyl diamine under substantially dry conditions sufficient to form a polyalkylene grafted poly(disubstituted ethylene-co-maleimide) polymer product; and, dispersing the polyalkylene grafted poly(disubstituted ethylene-co-maleimide) polymer product with an extender oil sufficient to form the gel. The instant invention also contemplates a polymer gel composition, a polymer composition and an article manufactured from the polymer gel composition.Type: GrantFiled: May 6, 1998Date of Patent: March 20, 2001Assignee: Bridgestone CorporationInventors: Xiaorong Wang, Victor J. Foltz, David F. Lawson, Hideo Takeichi, Naruhiko Mashita
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Patent number: 6200720Abstract: A graft resin having a structure of the formula (1) and having a number average molecular weight of 2,000 to 50,000, has excellent low-temperature moldability and exhibits an excellent shelf life against softening when stored at high temperatures, and an electrostatic charge developing toner containing the above graft resin as a binder exhibits excellent low-temperature fixing properties, developability and transferability without impairing the shelf life.Type: GrantFiled: June 8, 1999Date of Patent: March 13, 2001Assignee: Tomoegawa Paper Co., Ltd.Inventor: Toshio Tagami
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Patent number: 6180251Abstract: A thermoplastic resin having such a sufficient heat shock resistance that it is unbroken by common temperature changes and also exhibiting an excellent flame resistance when applied to an insert molded article, which is obtained by blending a thermoplastic polyester resin (A) with 1-25% by weight to the total amount of the composition of an impact resistance giving agent (B), 1-50% by weight to the total amount of the composition of an inorganic filler (C), 1-25% by weight to the total amount of the composition of a flame retardant (D) and 0.1-10% by weight to the total amount of the composition of an aromatic polyvalent carboxylate (E).Type: GrantFiled: March 22, 2000Date of Patent: January 30, 2001Assignee: Polyplastics Co. Ltd.Inventors: Hiroyuki Kanai, Kei Aoki, Toru Katsumata
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Patent number: 6162866Abstract: Thermoplastic molding compositions comprise:______________________________________ A) from 20 to 96% by weight of star polymers obtainable by polymerizing vinylaromatic monomers with a branched monomer building block which contains at least two vinylaromatic functions, B) from 3 to 50% by weight of copolymers comprising vinylaromatic monomers, 1,1-diphenylethylene and, if desired, dienes, C) from 1 to 15% by weight of polyarylene ethers, D) from 0 to 5% by weight of nucleating agents, E) from 0 to 5% by weight of antioxidants, F) from 0 to 5% by weight of stabilizers, and G) from 0 to 50% by weight of fibrous or particulate fillers.Type: GrantFiled: August 12, 1999Date of Patent: December 19, 2000Assignee: BASF AktiengesellschaftInventors: Josef Wunsch, Konrad Knoll, Hermann Gausepohl
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Patent number: 6162546Abstract: The present invention relates to a modified crosslinkable resin and a composite coating composition or system employing the resin. More particularly, the resin comprises an ethylenically unsaturated monomer or copolymer and para-hydroxybenzoic acid or substituted para-hydroxybenzoic acid, the reaction product thereof subsequently being reacted with a crosslinking agent gives rise to a composition including an ether linkage with a carbon-carbon site ortho to the phenolic hydroxy group.Type: GrantFiled: July 31, 1997Date of Patent: December 19, 2000Assignee: BASF CorporationInventors: Paul J. Harris, John W. Rehfuss, Gregory G. Menovcik, Robert J. Taylor, Jr., Donald L. St. Aubin
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Patent number: 6153307Abstract: The present invention relates to compatibilizers useful to laminate a layer of a vinyl aromatic polymer such as polystyrene and a polyester such as PET. The compatibilizer comprises a mixture comprising 5-95 weight % of a polyester, 95-5 weight % of an impact modified polymer of a vinyl aromatic monomer such as high impact polystyrene (HIPS) and from 5 to 20 weight % of a hydrogenated block polymer of a vinyl aromatic monomer and a conjugated diolefin sometimes called SEBS.Type: GrantFiled: July 30, 1998Date of Patent: November 28, 2000Assignee: Nova Chemicals Inc.Inventor: Beth Ann Baran
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Patent number: 6133374Abstract: A polypropylene resin composition comprises (1) 40 to 99% by weight of a polypropylene resin; (2) 1 to 60% by weight of an ethylene/alpha-olefin copolymer elastomer; (3) 20 to 50 parts by weight of a low molecular weight polypropylene resin modified with unsaturated carboxylic acid or its anhydride, and (4) 0.1 to 20 parts by weight of an epoxy resin represented by the following chemical formula I: ##STR1## wherein n is an integer of 1 to 4 and A is a multivalent group having a bond number of n and is selected from bisphenol A-type ethers, propylene oxide-type ethers and ethylene oxide-type ethers, the components (3) and (4) being based on 100 parts by weight of the components (1) and (2) in total. The composition is suited for polypropylene materials to be painted, such as automobile bumpers, by virtue of its superior paint adhesion even under the condition of no pretreatments.Type: GrantFiled: December 21, 1998Date of Patent: October 17, 2000Assignee: SK CorporationInventors: Byeong-Uk Nam, Young-Keun Lee, Tae-Hee Lee, Kyu-Jong Lee
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Patent number: 6127479Abstract: Provided are paint films with outstanding paint film performance traits such as water resistance and chemical resistance, etc., and outstanding finished appearance. The water-based paints are easy to apply and have outstanding storage stability. The invention further provides an acrylic graft copolymer obtained by reacting a acrylic copolymer (a) of acid number 35 to 120 mg KOH/g, hydroxyl group number 50 to 150 mg KOH/g, glass transition temperature -20 to +50.degree. C. and number average molecular weight 4500 to 9000, and a monomer combination (b) comprising an unsaturated monomer (b1) containing a glycidyl group and an unsaturated monomer (b2) containing a hydroxyl group to give an acid number of .ltoreq.15 mg KOH/g and a hydroxyl group number of 50 to 150 mg KOH/g.Type: GrantFiled: February 20, 1997Date of Patent: October 3, 2000Assignee: BASF Coatings AGInventors: Yoshiaki Matsukura, Atsuhiro Sakai, Hitoshi Taniguchi, Yoshiaki Kawamura
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Patent number: 6120709Abstract: There is provided an electroconductive resin composition, comprising:(a) a component containing a styrene based resin;(b-1) a component containing a rubber like substance having a styrene based tri-block structure;(b-2) a component containing a rubber like substance having a styrene based polymer graft; and(c) a component containing carbon black having a dibutyl phthalate oil absorption of not less than 70 ml/100 g;wherein a weight ratio of (a) component/((b-1) component+(b-2) component) is from about 70/30 to 85/15, a weight ratio of (c) component/((a) component+(b-1) component+(b-2) component) is from about 5/100 to 35/100, and a weight ratio of (b-1) component/(b-2) component is from about 20/80 to 90/10.Type: GrantFiled: May 10, 1999Date of Patent: September 19, 2000Assignee: Sumitomo Chemical Company, LimitedInventors: Manabu Ishikawa, Takeshi Fujii
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Patent number: 6111013Abstract: The present invention relates to a process for the manufacture of a plastics product from a polyolefin resin using a plasticizer monomer system which is substantially non-polymerizable under the product shape forming, conditions used in the product manufacturing process and which acts as a plasticizer or processing aid under said shape forming conditions, while being substantially polymerizable subsequently so as to produce a product substantially free of liquid plasticizer. The plasticizer monomer is mixed with the polyolefin resin; and the mixture formed into a desired product form. Polymerization of the plasticizer monomer then provides a final product substantially free of liquid plasticizer.Type: GrantFiled: February 4, 1998Date of Patent: August 29, 2000Assignee: Forbo International S.A.Inventors: Brian Robert Simpson, Robert Ashley Mein, Richard Michael Kopchik
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Patent number: 6107405Abstract: A process for making the grafted polyolefin includes the steps of adding a predetermined amount of polyolefin, a predetermined amount of 2-hydroxyethyl methacrylate and a free radical initiator to a reaction vessel. Preferably, the reaction vessel is an extruder. The constituents are then mixed under melt grafting conditions so that at least 5 weight percent of the 2-hydroxyethyl methacrylate is grafted onto the polyolefin to form a copolymer. The grafted polyolefin is then solidified.Type: GrantFiled: October 18, 1996Date of Patent: August 22, 2000Assignee: Kimberly Clark CorporationInventors: James Hongxue Wang, David Michael Schertz
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Patent number: 6103821Abstract: Compounds of the general formula (I):H(--CH.sub.2 --CR.sup.1 R.sup.2).sub.m (--CH.sub.2 --CR.sup.1 R.sup.3).sub.n --H (I)whereR.sup.1 is H or methyl,R.sup.2 is --C(O)--Y--R.sup.4, where R.sup.4 is H, methyl, ethyl or allyl,R.sup.3 is --C(O)--Y--allyl andY is O or NH,orR.sup.1 is H or C.sub.1 -C.sub.20 -alkyl,R.sup.2 is H andR.sup.3 is (--CH.sub.2 --CR.sup.5 .dbd.CR.sup.6 --CH.sub.2).sub.p --H, where R.sup.5 and R.sup.6 independently are each H,methyl, ethyl or chlorine and p is 1-100,orR.sup.1 is H,R.sup.2 is OH or O-allyl andR.sup.3 is O-allyl,orR.sup.1 is H,R.sup.2 is OH or R.sup.3 andR.sup.3 is (meth)acrylate, --O--C(O)--CH.dbd.CH--COOH or --O--C(O)--CH.sub.2 --C(.dbd.CH.sub.2)--COOH,and m is an integer from 5 to 500,000 and n is an integer from 2 to 100,000, are used as crosslinking agents in particulate emulsion polymers having a glass transition temperature below 0.degree. C. and a mean particle size of from 50 to 1000 nm.Type: GrantFiled: February 1, 1998Date of Patent: August 15, 2000Assignee: BASF AktiengesellschaftInventors: Michael Fischer, Gerhard Lindenschmidt, Graham Edmund Mc Kee, Bernhard Rosenau, Herbert Naarmann
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Patent number: 6100345Abstract: The present invention provides a thermally resistant resin composition containing PS and PPO, wherein at least one of PS and PPO has an acid group and the acid group is neutralized with a basic metal compound containing a metal element of the group 2B, 3B, 4B or 5B of the periodic table; thermally resistant PS and PPO each with an acid group which is also neutralized in the same manner as described above; and a method for miscible preparation of PS and PPO, wherein at least one of PS and PPO has an acid group and the acid group is neutralized similarly.Type: GrantFiled: October 29, 1998Date of Patent: August 8, 2000Assignee: Sony CorporationInventors: Yasuhito Inagaki, Tsutomu Noguchi, Hidemi Tomita
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Patent number: 6093768Abstract: A composition useful in molding comprises (A) from 10-95% by weight of a syndiotactic styrene resin, (B) from 5-90% by weight of a thermoplastic resin such as a polyolefin, polyester, polyether, polyamide or polycarbonate, and ( ) from 1-15 parts by weight of a rubber polymer such as maleic anhydride-modified or unmodified styrene-(butadiene or isoprene) block copolymer.Type: GrantFiled: June 5, 1995Date of Patent: July 25, 2000Assignee: Idemitsu Kosan Co., Ltd.Inventors: Akikazu Nakano, Takashi Sumitomo, Keisuke Funaki, Toshikazu Ijitsu, Michihiro Sawada, Masahiko Kuramoto, Masakazu Suzuki
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Patent number: 6093773Abstract: A compound comprising a blend of polypropylene with the reaction product of a functionalized polypropylene and polyether amine in which the polyether amine is grafted onto the functionalized polypropylene in a customary mixing apparatus is disclosed. A process for producing the reaction product of the functionalized polypropylene and the polyether amine by melting with polypropylene in a customary mixing apparatus is also disclosed.Type: GrantFiled: August 3, 1999Date of Patent: July 25, 2000Assignee: Huntsman Petrochemical CorporationInventors: Randall Keith Evans, Richard Joseph Gilbert Dominguez, Richard James Clark
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Water-swelling polymers cross-linked with unsaturated amino alcohols, the production and use of same
Patent number: 6087450Abstract: The present invention relates to cross-linked polymers absorbing aqueous liquids, which are built up of partially neutralized, mono-ethylenically unsaturated, acid groups-containing monomers, optionally further monomers copolymerizable with these, as well as optional polymers suitable as a graft basis, and that can be produced by using cross-linking agents of polyunsaturated amino alcohols. The used cross-linking agents are reaction products of (meth)allylamines with monoglycidyl compounds, di-, tri- or tetraglycidyl compounds, and optional alkylene oxide; reaction products of (meth)allylamines or saturated primary amines with (meth)acrylglycide esters and/or (meth)allyl glycidyl ethers and optional alkylene oxide; as well as reaction products of di- and polyamides with (meth)allyl glycide esters and/or (meth)acrylglycide esters and optional alkylene oxide.Type: GrantFiled: May 20, 1998Date of Patent: July 11, 2000Assignee: Stockhausen GmbH & Co., KGInventors: Ludger Breitbach, Kurt Dahmen, Jochen Houben, Erich Kuster -
Patent number: 6087435Abstract: A polystyrene-based resin composition, comprising (A) a styrene-based resin with a mainly syndiotactic configuration, (B) a polyolefin, and (C) rubber polymer particles as main components, exhibits excellent heat resistance and impact resistance.Type: GrantFiled: June 5, 1995Date of Patent: July 11, 2000Assignee: Idemitsu Kosan Co., Ltd.Inventors: Akikazu Nakano, Takashi Sumitomo, Keisuke Funaki, Toshikazu Ijitsu, Michihiro Sawada, Masahiko Kuramoto, Masakazu Suzuki
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Patent number: 6084028Abstract: A nitrile resin composition having excellent transparency, antistatic properties and practical physical properties. The composition comprises (A) 80 to 97 wt. % of a nitrile resin which is obtained by graft copolymerization, in the presence of 3 to 30 parts by weight of a rubbery polymer containing at least 50 wt. % of a conjugated diene unit, of 100 parts by weight of a monomer mixture containing an unsaturated nitrile and an alkyl methacrylate, and has, as a matrix component, 65 to 80 wt. % of an unsaturated nitrile unit and 20 to 35 wt. % in total of an alkyl (meth)acrylate unit and a unit of a further monomer copolymerizable with the unsaturated nitrile and alkyl (meth)acrylate; and (B) 3 to 20 wt. % of a polyether ester amide, wherein the ratio of the melt viscosity of the component (A) to that of the component (B) at 210.degree. C. is 0.5 to 5 at a shear rate of 10.sup.2 sec.sup.-1 and 0.5 to 3 at a shear rate of 10.sup.3 sec.sup.Type: GrantFiled: September 14, 1998Date of Patent: July 4, 2000Assignee: Mitsui Chemicals, Inc.Inventors: Makoto Someda, Masahiro Kaneko, Mitsuo Kawata, Kyoji Kuroda, Hiroaki Narisawa, Shinichi Asai
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Patent number: 6072001Abstract: The present invention uses high molecular weight polyethene glycol copolymer with high antistatic property, and other solubilizer agent to proceed blending and enhancing the co-solublization property of the polyamide. The long-term antistatic plastic particles obtained by blending the modified antistatic composition and the polyamide material are made into different articles according to various composites. The molded articles are divided into three types: (1) an antistatic polyamide article with surface resistance of about 10.sup.10 -10.sup.11 (.OMEGA./sq.), and the dissipation time of electrostatic charge is less than 1.5 sec; (2) an antistatic polyamide fiber with surface resistance of about 6.times.l0.sup.10 -1.2.times.10.sup.12 (.OMEGA./sq.), and the dissipation time of electrostatic charge is less than 60 sec; (3) a polishing resistant antistatic polyamide with surface resistance of about 10.sup.10 -10.sup.11 (.OMEGA./sq.), and the dissipation time of electrostatic charge is less than 1.5 sec.Type: GrantFiled: January 27, 1998Date of Patent: June 6, 2000Assignee: Industrial Technology Research InstituteInventors: Hsin-Herng Wang, Bin-Yuan Lin
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Patent number: 6054532Abstract: The present invention teaches a method for enabling the formation of a high damping, soft polymer gel. The method includes: reacting a poly(alkenyl benzene-co-maleimide) polymer with a maleated polyalkylene and a maleated hydrogenated block copolymer and an alkyl diamine grafting agent under substantially dry conditions sufficient to form a hydrogenated block copolymer-polyalkylene grafted poly(alkenyl benzene-co-maleimide) polymer product; and, dispersing the hydrogenated block copolymer-polyalkylene grafted poly(alkenyl benzene-co-maleimide) polymer product with an extender oil sufficient to form the gel. The present invention also contemplates a polymer gel composition, a polymer composition and an article manufactured from the polymer gel composition.Type: GrantFiled: May 6, 1998Date of Patent: April 25, 2000Assignee: Bridgestone CorporationInventors: Xiaorong Wang, Victor J. Foltz, James E. Hall, Hideo Takeichi, Takahiro Matsuse, Naruhiko Mashita, Shinichi Toyosawa
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Patent number: 6051655Abstract: A composition amenable to injection molding and extrusion comprises a syndiotactic styrene resin, a thermoplastic resin such as a polyolefin and an inorganic filler optionally contains a rubber.Type: GrantFiled: June 5, 1995Date of Patent: April 18, 2000Assignee: Idemitsu Kosan Co., Ltd.Inventors: Akikazu Nakano, Takashi Sumitomo, Keisuke Funaki, Toshikazu Ijitsu, Michihiro Sawada, Masahiko Kuramoto, Masakazu Suzuki
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Patent number: 6046273Abstract: The thermal stability of alpha-substituted acrylate graft copolymers can be improved by (a) making a graft copolymer comprising a backbone of a propylene polymer material having graft polymerized thereto monomers comprising (i) a 1-3 C alkyl-substituted acrylic acid and (ii) an ester of a 1-3 C alkyl-substituted acrylic acid, wherein the total amount of polymerized monomers is about 20 to about 240 parts per hundred parts of the propylene polymer material and the amount of (i) is about 1 to about 20%, based on the total weight of monomers, and (b) removing any unreacted grafting monomer from the resulting grafted propylene polymer material, decomposing any unreacted initiator, and deactivating any residual free radicals in the material.Type: GrantFiled: February 27, 1998Date of Patent: April 4, 2000Assignee: Montell North America Inc.Inventor: Abuzar Syed
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Patent number: 6031048Abstract: A compound comprising a blend of polypropylene with the reaction of a functionalized polypropylene and polyether amine in which the polyetheramine is grafted into the functionalized polypropylene in a customary mixing apparatus is disclosed. The blend may include an elastomer such as EP rubber and/or a filler such as glass. A process for producing the reaction product of the functionalized polypropylene and the polyether amine by melting with polypropylene in a customary mixing apparatus is also disclosed. Blends of the present invention are advantageously useful to prepare paintable automotive body parts.Type: GrantFiled: July 12, 1996Date of Patent: February 29, 2000Assignee: Huntsman Petrochemical CorporationInventors: Randall Keith Evans, Richard J.G. Dominguez, Richard J. Clark
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Patent number: 6013202Abstract: A composition of matter useful for strippable shields for electric power cables comprises:a base polymer which is a copolymer of ethylene with a mono-unsaturated ester;conductive carbon black in an amount to give the composition an electrical resistivity below 500 .OMEGA.m; andas adhesion-controlling additive, a copolymer of ethylene with a mono-unsaturated ester containing from 0.5 to 2% by weight of side-chains each of which comprises an inflexible ring structure bonded to a backbone carbon atom of the copolymer with at most five atoms interposed between them.The compositions have the advantage of being less rubbery than current strippable-screen compositions and can be made successfully with copolymers of lower ester content.Type: GrantFiled: July 29, 1998Date of Patent: January 11, 2000Assignee: BICC General UK Cables LimitedInventors: Mark Richard Easter, Fiona Eleanor Keen
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Patent number: 5994468Abstract: The instant invention teaches a method for enabling the formation of a high damping, soft polymer gel. The method includes: reacting a poly(maleimide-co-alkenyl benzene) polymer with a nylon and an alkyl diamine under substantially dry conditions sufficient to form a nylon grafted poly(maleimide-co-alkenyl benzene) polymer product; and, dispersing the nylon grafted poly(maleimide-co-alkenyl benzene) polymer product with an extender oil sufficient to form the gel. The instant invention also contemplates a polymer gel composition, a polymer composition and an article manufactured from the polymer gel composition.Type: GrantFiled: May 6, 1998Date of Patent: November 30, 1999Assignee: Bridgestone CorporationInventors: Xiaorong Wang, Victor J. Foltz, James E. Hall, Naruhiko Mashita, Hideo Takeichi
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Patent number: 5981657Abstract: The present invention provides a thermally resistant resin composition containing PS and PPO, wherein at least one of PS and PPO has an acid group and the acid group is neutralized with a basic metal compound containing a metal element of the group 2B, 3B, 4B or 5B of the periodic table; thermally resistant PS and PPO each with an acid group which is also neutralized in the same manner as described above; and a method for miscible preparation of PS and PPO, wherein at least one of PS and PPO has an acid group and the acid group is neutralized similarly.Type: GrantFiled: August 20, 1996Date of Patent: November 9, 1999Assignee: Sony CorporationInventors: Yasuhito Inagaki, Tsutomu Noguchi, Hidemi Tomita
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Patent number: 5965665Abstract: A low gloss thermoplastic resin composition containing a rubber modified thermoplastic resin, a gel polymer and a low molecular weight polyolefin polymer provides low surface gloss properties and improved impact properties.Type: GrantFiled: August 7, 1997Date of Patent: October 12, 1999Assignee: General Electric CompanyInventors: James M. Fukuyama, Satish Kumar Gaggar
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Patent number: 5965667Abstract: A compound comprising a blend of polypropylene with the reaction of a functionalized polypropylene and polyether amine in which the polyetheramine is grafted into the functionalized polypropylene in a customary mixing apparatus is disclosed. The blend may include an elastomer such as EP rubber and/or a filler such as glass. A process for producing the reaction product of the functionalized polypropylene and the polyether amine by melting with polypropylene in a customary mixing apparatus is also disclosed. Blends of the present invention are advantageously useful to prepare paintable automotive body parts.Type: GrantFiled: November 3, 1997Date of Patent: October 12, 1999Assignee: Huntsman Petrochemical CorporationInventors: Randall Keith Evans, Richard J. G. Dominguez, Richard J. Clark
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Patent number: 5959032Abstract: A compound comprising a blend of polypropylene with the reaction of a functionalized polypropylene and polyether amine in which the polyether amine is grafted into the functionalized polypropylene in a customary mixing apparatus is disclosed. The blend may include an elastomer such as EP rubber and/or a filler such as glass. A process for producing the reaction product of the functionalized polypropylene and the polyether amine by melting with polypropylene in a customary mixing apparatus is also disclosed. Blends of the present invention are advantageously useful to prepare paintable automotive body parts. A polyether monoamine that contains from about 36 to about 44 ethylene units and from about 1 to about 6 propylene units, and processes and blends using same.Type: GrantFiled: July 8, 1996Date of Patent: September 28, 1999Assignee: Huntsman Petrochemical CorporationInventors: Randall Keith Evans, Richard J. G. Dominguez, Richard J. Clark
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Patent number: 5952423Abstract: Plastic compositions, containers useful in the storage of red blood cells, and methods for providing such red blood cell storage containers and for storing red blood cells are disclosed. The plastic composition includes a polyolefin copolymer and a plasticizer. The flexibility of such plastic compositions and containers made thereof is substantially unchanged upon heating to a high temperature relative to its flexibility before such heating.Type: GrantFiled: July 18, 1997Date of Patent: September 14, 1999Assignee: Baxter International Inc.Inventors: Shaye-Wen Shang, Michael Tung-Kiung Ling, Lecon Woo
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Patent number: 5942576Abstract: A compound comprising a blend of polypropylene with the reaction product of a functionalized polypropylene and polyether amine in which the polyether amine is grafted onto the functionalized polypropylene in a customary mixing apparatus is disclosed. A process for producing the reaction product of the functionalized polypropylene and the polyether amine by melting with polypropylene in a customary mixing apparatus is also disclosed.Type: GrantFiled: November 3, 1997Date of Patent: August 24, 1999Assignee: Huntsman Petrochemical CorporationInventors: Randall Keith Evans, Richard Joseph Gilbert Dominguez, Richard James Clark
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Patent number: 5914370Abstract: There are disclosed a thermoplastic resin composition which comprises a styrenic resin comprising a modified styrenic polymer in which a compound having an unsaturated group and a polar group is bonded to the skeleton of a styrenic polymer having syndiotactic configuration (SPS) or to an end or an intermediate position of a substituent of the SPS, or the mixture of the above modified styrenic polymer and an unmodified SPS; and an inorganic filler, as well as a thermoplastic resin composition which comprises the aforesaid styrenic resin; and an other thermoplastic resin. The compositions are excellent in water resistance, impact resistance, heat resistance, modulus of elasticity and dynamical properties and capable of improving the adhesiveness to the inorganic filler or compatibility with the other resin without impairing the crystallization of the SPS and deteriorating the long-term heat resistant stability of the compositions.Type: GrantFiled: November 10, 1997Date of Patent: June 22, 1999Assignee: Idemitsu Kosan Co., Ltd.Inventors: Akihiko Okada, Akitoshi Masuyama
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Patent number: 5912301Abstract: A graft-modified polyolefin resin is provided, which is obtained by preparing a aqueous suspension containing (a1) 100 parts by weight of a polyolefin resin, (a2) 0.1 to 30 parts by weight of a mixture of 1 to 1000 parts by weight of an unsaturated glycidyl ester to 100 parts by weight of a compound having a glycidyl group as represented by a general formula (I): ##STR1## wherein Ar is an aromatic hydrocarbon group of C.sub.6 -C.sub.23 having at least one glycidyloxy group, and R is a hydrogen atom or a methyl group, (a3) 0.1 to 500 parts by weight of a vinyl monomer, and (a4) 0.001 to 10 parts by weight of a radical initiator to 100 parts by weight in total of (a2) and (a3), to thus impregnate (a1) with (a2) and (a3), and polymerizing (a2) and (a3) onto (a1). Resin compositions containig the graft-modified polyolefin resin have not only well-balanced mechanical properties, but excellent moldability.Type: GrantFiled: August 22, 1997Date of Patent: June 15, 1999Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Kazuhiko Tamai, Shinji Ozawa, Kenji Kurimoto, Haruo Tomita