Mixture Contains Solid Block Or Block-type Copolymer Derived From Ethylenically Unsaturated Hydrocarbon Reactants Only At Least One Of Which Contains At Least Four Carbon Atoms Patents (Class 525/95)
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Patent number: 7241837Abstract: The present invention has for its object to provide a damping material which, despite a high damping capacity at and around room temperature, has a small temperature dependence of rigidity at and around room temperature and a damping material having hot-melt processability and a good balance between damping capacity and temperature dependence of rigidity at and around room temperature. This invention provides a damper material composition wherein the ratio of the storage modulus (G?) value at 0° C. to the corresponding value at 40° C. as found by the measurement of dynamic viscoelasticity in the shear mode, namely (G?0° C./G?40° C.), is not greater than 15 and the loss tangent (tan ?) value as found by said measurement is not smaller than 0.4 at 0° C. to 40° C.Type: GrantFiled: April 5, 2001Date of Patent: July 10, 2007Assignee: Kaneka CorporationInventors: Shigeru Yaguchi, Katsuhiko Kimura, Taizo Aoyama
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Patent number: 7230050Abstract: A tire component comprising a vulcanized rubber, and from about 3 to about 85 parts by weight, per 100 parts by weight rubber, of a filler dispersed within said vulcanized rubber, where the vulcanized rubber includes the vulcanized residue of a thermoplastic-elastomeric block copolymer defined by the formula ?-?-?-? where ? is a hydrogen atom or a functional group, ? includes an elastomeric block, ? includes a thermoplastic block, and ? includes a hydrogen atom or a functional group.Type: GrantFiled: September 30, 2005Date of Patent: June 12, 2007Assignee: Bridgestone CorporationInventors: Christopher G. Robertson, Terrence E. Hogan, William L. Hergenrother, David F. Lawson
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Patent number: 7196142Abstract: Various novel block cationomers comprising polyisobutylene (PIB) and poly(2-dimethylamino)ethyl methacrylate) (PDMAEMA) segments have been synthesized and characterized. The specific targets were various molecular weight diblocks (PDMAEMA+) and triblocks (PDMAEMA+-b-PIB-b-PDMAEMA+) with the PIB blocks in the DPn=50–200?(Mn=3,000–9,000 g/mol) range connected to blocks of PDMAEMA+ cations in the DPn=5–20 range. The overall synthetic strategy for the preparation of these block cationomers comprised four steps: 1) Synthesis by living cationic polymerization of mono- and di-allyltelechelic polyisobutylenes, 2) End group transformation to obtain PIBs fitted with termini capable of mediating the atom transfer radical polymerization (ATRP) of DMAEMA, 3) ATRP of DMAEMA and 4) Quaternization of PDMAEMA to PDMAEMA+I? by CH3I. Kinetic and model experiments provided guidance to develop convenient synthesis methods.Type: GrantFiled: April 3, 2003Date of Patent: March 27, 2007Assignee: The University of AkronInventors: Joseph P. Kennedy, Zheng Fang
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Patent number: 7156944Abstract: To obtain an adhesive having both a high initial adhesive capacity and high heat resistance, a fusible adhesive which can be cross-linked by radiation and a low tendency to creep is provided. The adhesive contains 0 to 40 weight percent of at least one elastomer which cannot be cross-linked by radiation, 15 to 40 weight percent of at least one compound containing at least two olefinic double bonds, and 20 to 85 weight percent of at least one tackifier. The adhesive is especially suitable for use on high speed labeling machines.Type: GrantFiled: January 24, 2005Date of Patent: January 2, 2007Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Thomas Moeller, Marcus Heemann, Andreas Ferencz
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Patent number: 7119146Abstract: Compatibilized blends of an isoolefin polymer and an unsaturated diene polymer are prepared by utilizing a compatibilizing agent comprising a block/graft copolymer containing poly- or copoly-isoolefin segments and C4 to C6 alkyl-substituted styrene polymer segments, such as poly(t-butylstyrene) segments.Type: GrantFiled: August 19, 2002Date of Patent: October 10, 2006Assignee: ExxonMobil Chemical Patents Inc.Inventors: Mun Fu Tse, Hsien Chang Wang, Ramanan Krishnamoorti, Andy H. Tsou
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Patent number: 7090924Abstract: This invention concerns a thermosetting resin system that is useful in the manufacture of high performance prepreg, laminate and composite materials as well as the prepregs, laminates and composites made from the thermosetting resin composition.Type: GrantFiled: December 4, 2002Date of Patent: August 15, 2006Assignee: Isola USA Corp.Inventors: Jyoti Sharma, Martin Choate, Steve Peters, Kevin Rafferty
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Patent number: 7081498Abstract: The present invention is directed to pressure-sensitive adhesive compositions and pressure-sensitive adhesive constructions fabricated using the pressure-sensitive adhesive compositions. The pressure-sensitive adhesive compositions comprise about 10 to about 40% of a styrene-isoprene block copolymer, about 5 to about 30% of a styrene-butadiene block copolymer, about 30 to about 65% of an aromatically modified tackifying resin, about 8 to about 30% of a plasticizing oil and optionally about 0.2 to about 2% of an antioxidant, wherein the percentages are based on the total weight of the composition.Type: GrantFiled: April 8, 2004Date of Patent: July 25, 2006Assignee: Morgan Adhesives CompanyInventors: Scott Allen Moeller, Gary A. McMaster, Timothy Smith
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Patent number: 7033676Abstract: A binder mixture comprises at least one polymer (A) with saturated main chain that is not a polyester and at least one polyester (B) with a saturated and/or unsaturated main chain, where (i) one of the two components (A) or (B) contains structural units I and/or II, or both components (A) and (B) contain structural units I and/or II, ?in which the index n is an integer from 1 to 10; and where (ii) at least polyester (B) that contains no structural units I and/or II contains maleic and/or fumaric esters incorporated in its main chain.Type: GrantFiled: January 21, 2000Date of Patent: April 25, 2006Assignee: BASF Coatings AGInventors: Rainer Blum, Jorge Prieto
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Patent number: 7026396Abstract: Provided are an aromatic vinyl polymer resin composition capable of being molded into resin foam sheets having good surface smoothness and glossiness well balanced with the mechanical strength thereof even when the expansion ratio in molding is increased, and resin foam sheets and containers of the composition. The resin composition comprises (A) from 80 to 98% by mass of an aromatic vinyl polymer resin having a weight-average molecular weight measured through GPC of from 200,000 to 400,000, a ratio of weight-average molecular weight to number-average molecular weight ranging from 2.2 to 3.6, a number of branches of from 0.1 to 1.0 in one molecule having an absolute molecular weight of 1,190,000 measured through GPC-MALLS, and a melt flow rate of from 1.5 to 3.5 g/10 min, and (B) from 2 to 20% by mass of a styrene-diene block copolymer or its hydrogenate. This is molded into a resin foam sheet through extrusion foaming, and the sheet is thermoformed into containers.Type: GrantFiled: July 17, 2002Date of Patent: April 11, 2006Assignee: Idemitsu Kosan Co., Ltd.Inventors: Shogo Hirota, Ryozo Okumura, Makoto Wakabayashi
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Patent number: 7015285Abstract: This invention provides a composition and method for improving adhesion between a resinous thermoplastic substrate and polyurethane foam, said composition comprising at least one polyphenylene ether, at least one poly(alkenylaromatic) compound, and at least one carboxylic acid containing copolymer and optionally, further comprising at least one curing catalyst. Another embodiment of the invention provides articles derived from the composition of the present invention.Type: GrantFiled: December 18, 2002Date of Patent: March 21, 2006Assignee: General ElectricInventors: Vijay Mhetar, Ganesh Kannan
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Patent number: 6987140Abstract: To provide a mouth guard composition which hardly generates plastic deformation and which is high in fluidity during the formation after heating and softening and superior in fitness, and which even after repeated use of a mouth guard prepared therefrom, is free from sticking with respect to its surface and does not cause an offensive smell. The mouth guard composition is constituted of 39˜98% by weight of a styrene block copolymer; 1˜60% by weight of at least one thermoplastic resin selected from the group consisting of an alicyclic saturated hydrocarbon-based resin, a terpene resin, and an aliphatic petroleum resin; and 1˜40% by weight of at least one wax selected from the group consisting of a mineral wax, a synthetic wax, a vegetable-based wax, and an animal-based wax.Type: GrantFiled: July 8, 2002Date of Patent: January 17, 2006Assignee: GC CorporationInventors: Hiroshi Kamohara, Takaharu Takeshita
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Patent number: 6964798Abstract: A multiple layer structure comprising a first and a second skin layer, each skin layer composed of a polypropylene containing polymer, and a radio frequency (“RF”) susceptible layer adhered to and between the first and second skin layers. The RF layer has a first component of a propylene based polymer, a second component of a non-propylene polyolefin, a third component of a radio frequency susceptible polymer, and a fourth component of a polymeric compatibilizing agent.Type: GrantFiled: March 21, 2002Date of Patent: November 15, 2005Assignee: Baxter International Inc.Inventors: Gregg Nebgen, Keith Anderson, Mike Scharf
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Patent number: 6933342Abstract: The present invention relates to a composition which comprises at least one triblock copolymer, one terpene resin, one liquid component and one ethylene-vinyl acetate copolymer, and also to a process for preparing this composition, and to its use.Type: GrantFiled: July 29, 2004Date of Patent: August 23, 2005Assignee: Bayer AktiengesellschaftInventors: Roland Parg, Martin Hoch
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Patent number: 6913807Abstract: An isothiocyanate-containing composition is provided in which bleeding of the composition is suppressed and even if an isothiocyanate volatilizes, the adhesion strength is retained. An isothiocyanate-containing composition is provided wherein an isothiocyanate is mixed into a mixture of a rubber adhesive having a softening point of less than 100° C. and a hydrogenated terpene resin having a softening point of less than 100° C. by an amount of 0.5-15 wt % of an isothiocyanate relative to the total amount of the mixture. The composition has a viscosity at 90° C. of 3000-40000 mPa.s and an adhesion strength of 1 N/25 mm or over when used as an adhesive to laminate two films, irrespective of whether or not the isothiocyanate has volatilized.Type: GrantFiled: May 30, 2003Date of Patent: July 5, 2005Assignee: Rengo Co., Ltd.Inventors: Kiyoshi Kamei, Hidenao Saito
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Patent number: 6906120Abstract: An adhesive for thermoplastic film is formed from a composition comprising a blend of a poly(arylene ether), a thermosetting resin, a toughening agent, an optional plasticizer, and a cure agent. The adhesive finds particular utility in circuit board applications.Type: GrantFiled: August 22, 2000Date of Patent: June 14, 2005Assignee: General ElectricInventors: Michael J. Davis, James Estel Tracy, Geoffrey Henry Riding, Gary William Yeager
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Patent number: 6894113Abstract: The present invention relates to a thermoset material with improved impact resistance comprising: 99 to 20% of a thermoset resin, and 1 to 80% of an impact modifier comprising at least one copolymer comprising S-B-M, B-M and M-B-M blocks, wherein: each block is connected to the other by means of a covalent bond or of an intermediate molecule connected to one of the blocks via a covalent bond and to the other block via another covalent bond, M is a PMMA homopolymer or a copolymer comprising at least 50% by weight of methyl methacrylate, B is incompatible with the thermoset resin and with the M block and its glass transition temperature Tg is less than the operating temperature of the thermoset material, and S is incompatible with the thermoset resin, the B block and the M block and its Tg or its melting temperature is greater than the Tg of B. S is advantageously polystyrene and B polybutadiene.Type: GrantFiled: May 17, 2001Date of Patent: May 17, 2005Assignee: AtofinaInventors: Francois Court, Ludwik Leibler, Jean-Pierre Pascault, Sophie Ritzenthaler
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Patent number: 6875804Abstract: The syndiotactic polystirene resin composition according to the present invention is superior in compatibility between a syndiotactic polystyrene and a rubber component and mechanical properties such as impact strength, in which a syndiotactic polystyrene-maleic anhydride (sPS-MA) and a hydrogenated styrene/butadiene/styrene-maleic anhydride (SEBS-MA) are employed as compatibilizers and a diamine compound is added as a coupling agent. The compatibilizers and coupling agents improve polarity of both the syndiotactic polystyrene and the rubber component and impact strength of the syndiotactic polystyrene composition.Type: GrantFiled: December 18, 2000Date of Patent: April 5, 2005Assignee: Samsung Atofina Co., Inc.Inventors: Xuequan Zhang, Jae Gon Lim
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Patent number: 6849339Abstract: Laminates include a thermoplastic substrate layer, a clear coat layer, and a tie layer. The tie layer most preferably includes an adhesive-enhancing effective amount of a branched or linear styrenic block copolymer which adhesively bonds the substrate and clear coat layers one to another. Advantageously, the tie layer includes a blend of the styrenic block copolymer and a tackifier resin, preferably a terpene resin. The laminate may be employed to manufacture a variety of shaped articles, most preferably automotive trim components.Type: GrantFiled: November 27, 2001Date of Patent: February 1, 2005Assignee: Guardian Industries CorporationInventors: Subir K. Dey, Subhash H. Patel
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Patent number: 6846571Abstract: A polymer blend suitable for use in automotive floor covering applications includes 100 parts by weight of a radial block copolymer having the general formula (AB)nBA, wherein n is greater than 1, each block A is a monoalkenyl arene polymer block and each block B is an elastomeric conjugated diene polymer block; from about 5 to about 200 parts by weight of a mineral oil; and from about 5 to about 300 parts by weight of a 1-olefin polymer. The resulting polymer blend may be formed into sheet materials which are recyclable, and which may exhibit low gloss and excellent tactility similar to vulcanized rubber. Further, the polymer blends of this invention may exhibit excellent grain retention, abrasion resistance, heat stability, and ultraviolet light stability.Type: GrantFiled: October 3, 2002Date of Patent: January 25, 2005Inventor: Raj K. Agrawal
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Patent number: 6846877Abstract: An olefinic thermoplastic vulcanizate is blended with a rubber-modified monovinylidene aromatic monomer, utilizing a flexible block copolymer as compatabilizing agent. The resulting composition demonstrates improved miscibility and bonding characteristics and increased hardness not previously achievable using unmodified thermoplastic vulcanizates.Type: GrantFiled: December 26, 2002Date of Patent: January 25, 2005Assignee: Advanced Elastomer Systems, L.P.Inventors: Sunny Jacob, Kathleen Perevosnik, Joseph E. Pfeiffer
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Patent number: 6838500Abstract: An adhesive composition and tapes utilizing the adhesive compositions are disclosed. A tape utilizing the adhesive composition of the present invention particularly suitable for use in closure systems associated with air ducts and air connectors is disclosed. A composition particularly suitable for use as an antioxidant in adhesive compositions is disclosed.Type: GrantFiled: February 7, 2002Date of Patent: January 4, 2005Inventors: Stuart D. Carlisle, Jerry M. Serra
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Publication number: 20040266951Abstract: A polyphenylene sulfide resin composition including a polyphenylene sulfide resin having a specific amount of oligomers and a specific amount of a functional group, an amorphous thermoplastic resin having a glass transition temperature (Tg) of 120° C. or higher, and an additive having a specific amount of a functional group. The moldings obtained from this polyphenylene sulfide resin composition have a good toughness (impact strength) and weld strength. The use of this polyphenylene sulfide resin composition as a material for secondary battery cases makes it possible to maintain the initial electrolytic performance over a long period of time.Type: ApplicationFiled: April 19, 2004Publication date: December 30, 2004Inventors: Yoshikuni Akiyama, Minoru Sakata, Kuniaki Minonishi
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Patent number: 6821635Abstract: The present invention is a blend of a monovinylidene aromatic polymer, a rubber modified monovinylidene aromatic polymer, and a monovinyl aromatic-conjugated diene copolymer, which can be used to produce cost effective, transparent packaging materials with a good toughness, which materials can be produced using conventional thermoforming equipment. The blend comprises: a) from 49 to 70 weight percent based on the total weight of the blend, of a monovinylidene aromatic polymer having a weight average molecular weight (Mw) of from 210,000 to 400,000 and a melt flow of less than 12.0 g/10 min.Type: GrantFiled: February 19, 2003Date of Patent: November 23, 2004Assignee: Dow Global Technologoies Inc.Inventors: John L. Sugden, Phillip A. Wagner
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Patent number: 6812285Abstract: A thermoplastic elastomer composition for a powder material used for slush molding. The thermoplastic elastomer composition consists of a polypropylene resin and 20 to 500 parts by mass of a hydrogenated block copolymer per 100 parts by mass of the polypropylene resin. The hydrogenated block copolymer has a) at least one polymer block A with a primary component that is a vinyl aromatic hydrocarbon monomer unit and b) at least one polymer block B with a primary component that is a hydrogenated butadiene monomer unit. The polymer block B has a hydrogenation degree of at least 90%. The vinyl aromatic hydrocarbon in the hydrogenated block copolymer is present in an amount more than 5 mass % and less than 25 mass %. The polymer block B before hydrogenation contains 62 mol % or more 1, 2 bonds on average. The melt flow rate (MFR) of the thermoplastic elastomer composition is at least 10 g/10 min at 230° C. under a load of 2.16 kgf in accordance with Japanese Industrial Standards (JIS) K7210.Type: GrantFiled: October 26, 2001Date of Patent: November 2, 2004Assignee: Mitsuboshi Belting Ltd.Inventors: Hirohide Enami, Kenrou Ono, Kenji Kubomoto, Yoshihiro Toda
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Publication number: 20040214951Abstract: Block copolymers having a polyisobutylene segment and a polycycloaliphatic diene polymer segment are presented. Star block copolymers with 2 to 16 block copolymer arms, wherein each of the arms has a polyisobutylene segment and a polycycloaliphatic diene polymer segment, are presented. The star block copolymers are synthesized via the “core first” method.Type: ApplicationFiled: April 25, 2003Publication date: October 28, 2004Inventors: Joseph P. Kennedy, Ralf M. Peetz, Ahmed F. Moustafa
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Patent number: 6797782Abstract: A process of producing particles for diagnostic reagent, including a step of polymerizing a polymerizable monomer in the presence of a matrix particle having a magnetic substance layer containing at least one of Fe2O3 and Fe3O4 on the surface thereof and having a mean particle size of 0.4-200 &mgr;m to form a polymer layer on the magnetic substance layer.Type: GrantFiled: March 21, 2003Date of Patent: September 28, 2004Assignee: JSR CorporationInventors: Ichiro Ozaki, Satoshi Katayose, Mikio Hikata, Kejun Fan, Mitsuhiro Murata
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Patent number: 6794449Abstract: An adhesive composition is provided for adhering together roofing materials such as EPDM rubber and thermoplastic polyolefin (TPO). The adhesive composition includes a rubbery polymer comprising a blend of a thermoplastic block copolymer selected from the group consisting of a styrene-butadiene-styrene block copolymer, a styrene-isoprene-styrene block copolymer, a styrene-ethylene/butylene-styrene block copolymer, a styrene-ethylene/propylene block copolymer and an ethylene-propylene block copolymer and combinations thereof and a polyisobutylene. Roofing articles incorporating the adhesive composition are also provided. The composition is a pressure sensitive adhesive that allows roofing articles to be applied in a peel and stick manner.Type: GrantFiled: April 11, 2002Date of Patent: September 21, 2004Assignee: Adco Products, Inc.Inventor: Dennis K. Fisher
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Patent number: 6787604Abstract: The present invention relates to a composition which comprises at least one triblock copolymer, one terpene resin, one liquid component and one ethylene-vinyl acetate copolymer, and also to a process for preparing this composition, and to its use.Type: GrantFiled: March 21, 2003Date of Patent: September 7, 2004Assignee: Bayer AktiengesellschaftInventors: Roland Parg, Martin Hoch
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Patent number: 6764761Abstract: A method, system and apparatus for performing peritoneal dialysis are provided. To this end, in part, a film is provided. The film includes a layer of a polymer blend having from about 90% to about 99% by weight of a first component containing a styrene and hydrocarbon copolymer and from about 10% to about 1% of a high melt strength polypropylene.Type: GrantFiled: May 24, 2002Date of Patent: July 20, 2004Assignee: Baxter International Inc.Inventors: Bruce Ming-Da Eu, Sherwin Shang, Tahua Yang, Michael T. K. Ling, Loren M. Lundtveit
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Patent number: 6759465Abstract: A thermoplastic composition which is obtained by melt-kneading (1) 55 to 75 wt. % crystalline polypropylene resin together with (2) 10 to 30 wt. % elastomer comprising either a rubber containing a vinyl aromatic compound or a mixture thereof with an ethylene/&agr;-olefin random copolymer rubber and (3) 15 to 25 wt. % talc having an average particle diameter of 3 &mgr;m or smaller. The composition satisfies specific requirements with respect to: the long period obtained by X-ray small-angle scattering attributable to the vinyl aromatic-containing rubber in a blend obtained by melt-kneading the ingredients (1) and (2); the shape and diameter of the elastomer particles present near the polypropylene/elastomer interface in the blend; and the difference between the glass transition point of the ingredient (1) and that of the composition attributable to the crystalline polypropylene homopolymer parts.Type: GrantFiled: December 22, 2000Date of Patent: July 6, 2004Assignees: Sumitomo Chemical Company, Limited, Toyota Jidosha Kabushiki KaishaInventors: Moriyasu Shimojo, Kenichi Ohkawa, Susumu Kanzaki, Takayuki Nagai, Takao Nomura, Masatoshi Matsuda, Hisayuki Iwai
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Patent number: 6747094Abstract: A high-impact thermoplastic resin composition comprising: (A) 5 to 95 parts by weight of a thermoplastic elastomer comprising a partially or completely crosslinked saturated rubber-like polymer and a polyolefinic resin and/or a polystyrene-based resin, or a mixture of said thermoplastic elastomer and a polyolefinic resin; and (B) 95 to 5 parts by weight of at least one thermoplastic resin selected from the group consisting of polystyrene-based resins, polyamide-based resins, polyurethane-based resins, polycarbonate-based resins, polyphenylene ether-based resins, polyester-based resins, acrylic resins, polyacetal-based resins and polyphenylene sulfide-based resins, the total of the components (A) and (B) being 100 parts by weight, wherein the amount of the saturated rubber-like polymer in the composition is 1 to 40% by weight.Type: GrantFiled: May 17, 2001Date of Patent: June 8, 2004Assignee: Asahi Kasei Kabushiki KaishaInventors: Hideo Kinoshita, Ikuji Ohtani, Takeshi Yasui
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Patent number: 6743860Abstract: The present invention relates to a thermoplastic resin composition comprising (a) 100 parts by weight of a block copolymer comprising at least two polymeric blocks A composed mainly of a vinyl aromatic compound and at least one polymeric block B composed mainly of a conjugated diene compound, or a hydrogenated block copolymer thereof, (d) 5 to 50 parts by weight of an organic peroxide, and (e) 10 to 80 parts by weight of one or more substances selected from the group consisting of multifunctional vinyl compounds and multifunctional (meth)acrylate compounds. The present invention provides a master batch of an organic peroxide in which the organic peroxide is so uniformly dispersed in a thermoplastic resin that crosslinking and/or decomposition occur uniformly, a method of preparing the same, a thermoplastic resin composition obtained using the master batch and a method of preparing the same.Type: GrantFiled: August 2, 2002Date of Patent: June 1, 2004Assignee: Riken Technos CorporationInventor: Hiroki Mizuno
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Patent number: 6734247Abstract: An improved tough, transparent polymer alloy comprised of 90 to 20 weight percent of a brittle polymer with a weight average molecular weight greater than 180,000; 0 to 60 weight percent of a rubbery polymer; 0 to 80 weight percent of a ductile polymer; and between greater than 0.4, i.e. between 0.5 and 3 weight percent of a plasticizer, i.e. mineral oil which resides in the brittle polymer. The brittle polymer can have molecular weights between 220,000 and 300,000, and may be as high as 400,000. In one of the preferred embodiments the brittle polymer is a copolymer of styrene and methyl methacrylate which copolymer ranges between 50 and 55 weight percent, the rubbery polymer is 0 weight percent, the ductile polymer is a styrene butadiene block copolymer ranging between 45 and 50 weight percent, and the mineral oil is 1.5 weight percent. Notched IZOD impact strength ranges between 1.0 to 6.0 ft-lb./in., preferably between 2.0 and 4.5 ft-lb./in. The haze can be less than 1.5% or it can be between 1 and 4%.Type: GrantFiled: December 13, 2001Date of Patent: May 11, 2004Assignee: Nova Chemicals Inc.Inventors: Allen Maxwell Donn, Richard Albert Cooper
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Patent number: 6713545Abstract: A universal masterbatch composition for adding fillers and particularly pigment to polymers, having up to 85%, by weight, of at least one filler, up to 25%, by weight, of at least one viscosity modifier and a remainder quantity of a styrene butadiene block copolymer. The composition further includes up to 5%, by weight, of at least one processing aid and up to 2%, by weight of at least one antioxidant.Type: GrantFiled: December 22, 2000Date of Patent: March 30, 2004Assignee: Cabot CorporationInventors: Nicole Petiniot, Philippe Rasquin
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Patent number: 6706813Abstract: To provide a curable composition excellent in flexibility and heat resistance. A curable composition which comprises (A) a block copolymer having at least one kind of block formed from an aliphatic hydrocarbon compound and (B) an isobutylene polymer having a silicon group bound to a hydrolyzable group or a hydroxyl group. That composition can be used as sealants, adhesives, pressure sensitive adhesives, compositions for gaskets, double layer glazing spacers and so on.Type: GrantFiled: December 3, 2001Date of Patent: March 16, 2004Assignee: Kaneka CorporationInventors: Makoto Chiba, Shintaro Komitsu
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Patent number: 6699943Abstract: The present invention is directed to a curable, water-based coating composition utilized in waterborne coating systems. The coating composition is the reaction product of a water-based copolymer prepared by free-radical polymerization, and a cross-linking agent. The copolymer is the reaction product of a first block and a second block. The first block is the reaction product of a first ethylenically unsaturated monomer, acrylic acid, and a second ethylenically unsaturated monomer, methyl methacrylate, as well as the reaction product of a vinylaromatic hydrocarbon monomer, diphenylethylene. The second block is the reaction product of a plurality of ethylenically unsaturated monomers, styrene, 2-ethylhexyl methacrylate, cyclohexyl methacrylate, and carbonate-modified glycidyl methacrylate including a carbonate functional group that is subsequently converted into a carbamate functional group by ammonium hydroxide.Type: GrantFiled: December 22, 2000Date of Patent: March 2, 2004Assignee: BASF CorporationInventors: Swaminathan Ramesh, Paul Lessek, Wolfgang Bremser
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Patent number: 6696520Abstract: An elastomeric thermoplastic polyolefin composition comprising (i) an heterophasic olefin polymer composition comprising a crystalline propylene homopolymer of copolymer fraction and an elastomeric ethylene copolymer fraction and (ii) an elastomeric polymer having a hardness equal to or less than 90 points selected from the group consisting of copolymers of ethylene, ethylene-methyl acrylate copolyers, saturated or unsaturated styrene block copolymers and unsaturated norbornene polymers.Type: GrantFiled: October 14, 1998Date of Patent: February 24, 2004Assignee: Basell Poliolefine Italia S.p.A.Inventors: Giampaolo Pellegatti, Vittorio Braga, Roberto Bonari
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Patent number: 6683123Abstract: A process for producing a thermoplastic molding composition is disclosed. The process entails introducing a solid polymeric resin, optionally containing residual moisture, into an extruder, operating under conditions designed to melt the resin and charging water into the melt while in the extruder to yield wet, molten resin that contains water in an amount of at least about 2 percent. The wet, molten resin is then devolatilized to yield dry resin having water content not exceeding 0.3 percent. Molding compositions thus produced have improved properties. In a preferred embodiment, the process results in a molding composition that contains a fine dispersion of a discontinuous phase in a continuous polymeric phase.Type: GrantFiled: September 12, 2000Date of Patent: January 27, 2004Assignee: Bayer Polymers LLCInventor: Henry A. Kozlowski
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Patent number: 6660797Abstract: This invention provides a propylene-based composition for the molded polypropylene resin articles excellent in resistance to scratching and moldability, and well-balanced properties between high rigidity and high impact strength, and also provides a method for molding the above propylene-based composition, thereby providing high-performance industrial parts and automobile parts, in particular automobile interior parts.Type: GrantFiled: October 10, 2001Date of Patent: December 9, 2003Assignee: Japan Polychem CorporationInventors: Yoshihiro Banno, Yoshihiro Sobajima, Akira Kobayashi, Masaaki Isoi
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Patent number: 6653401Abstract: Disclosed is a thermoplastic elastomer composition which comprises (A) a thermoplastic resin containing a polystyrene resin, (B) a rubber-like polymer obtained by partially or completely crosslinking an ethylene-&agr;-olefin copolymer and (C) a compatibilizing agent, the amount of the component (B) being 40-90 parts by weight and the amount of the component (C) being 0.1-40 parts by weight based on 100 parts by weight of the components (A), (B) and (C) in total. According to the present invention, an elastomer composition excellent in abrasion resistance can be provided.Type: GrantFiled: March 2, 2001Date of Patent: November 25, 2003Assignee: Asahi Kasei Kabushiki KaishaInventors: Hideo Kinoshita, Ikuji Ohtani, Takeshi Yasui
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Patent number: 6649695Abstract: Linear or star block copolymers which have at least one polymer block A which is essentially composed of isobutene units and at least two polymer blocks B which are essentially composed of units which are derived from vinylaromatic monomers are used as resilient sealing material. In particular, such sealing materials are used for sealing the edge joints in insulation glass panes, and insulation glass panes have a flexible edge joint seal which contains one of the block copolymers.Type: GrantFiled: February 6, 2002Date of Patent: November 18, 2003Assignee: BASF AktiengesellschaftInventors: Hans Peter Rath, Arno Lange, Helmut Mach, Konrad Knoll
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Patent number: 6632541Abstract: An olefin based copolymer composition having excellent weather resistance and excellent recycling properties having an olefin based copolymer obtained by copolymerizing two or more olefins, wherein the olefins are selected from the group consisting of ethylene, propylene and alpha olefins having 4 to 20 carbon atoms, and the total number of carbon atoms of the two or more selected olefins is 6 or more in combination with other component(s).Type: GrantFiled: February 10, 1999Date of Patent: October 14, 2003Assignee: Sumitomo Chemical Company, LimitedInventors: Hirofumi Johoji, Hidetake Hozumi, Tadaaki Nishiyama
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Patent number: 6630536Abstract: A pressure-sensitive adhesive composition comprises: 100 parts by weight of a rubber component that is solid in an ordinary temperature; 30 to 170 parts by weight of a rubber component that is liquid in an ordinary temperature; and 50 to 400 parts by weight of a tackifier, wherein the amount of the tackifier is 25 to 80 parts by weight based on 100 parts by weight of the total amount of the rubber components.Type: GrantFiled: August 28, 2001Date of Patent: October 7, 2003Assignee: Nitto Denko CorporationInventors: Masayoshi Kuniya, Yasuyuki Sasaki, Tsuyoshi Kasahara
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Publication number: 20030181586Abstract: The present invention relates to a composition which comprises at least one triblock copolymer, one terpene resin, one liquid component and one ethylene-vinyl acetate copolymer, and also to a process for preparing this composition, and to its use.Type: ApplicationFiled: March 21, 2003Publication date: September 25, 2003Inventors: Roland Parg, Martin Hoch
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Patent number: 6624247Abstract: A polypropylene-based resin film of a resin composition (C) comprising: 40 to 95 wt % of a propylene-based copolymer (A) selected from a propylene random copolymer (i) of propylene with ethylene and/or &agr;-olefin and a propylene-based copolymer (ii) composed of 1 to 30 wt % of a component (a) obtained by copolymerizing propylene, an &agr;-olefin and ethylene in a first step; and 70 to 99 wt % of a component (b) obtained by copolymerizing those in the subsequent step, in which the copolymerization ratio is different from that in the first step; and 5 to 60 wt % of a polypropylene-ethylene and/or &agr;-olefin block copolymer (B) having a CXS of 5.0 wt % or more, wherein the CXS has a content of ethylene and/or the &agr;-olefin of 14 to 35 mol %, and wherein the heat-seal temperature of the film of the (C) is lower by 3° C. or more than those of respective films of the (A) and (B).Type: GrantFiled: July 11, 2001Date of Patent: September 23, 2003Assignee: Sumitomo Chemical Company, LimitedInventors: Takanori Kume, Shigeki Kishiro, Eisuke Shiratani
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Publication number: 20030158336Abstract: The present invention has for its object to provide a damping material which, despite a high damping capacity at and around room temperature, has a small temperature dependence of rigidity at and around room temperature and a damping material having hot-melt processability and a good balance between damping capacity and temperature dependence of rigidity at and around room temperature.Type: ApplicationFiled: February 13, 2003Publication date: August 21, 2003Inventors: Shigeru Yaguchi, Katsuhiko Kimura, Taizo Aoyama
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Patent number: 6598637Abstract: There is disclosed a pneumatic tire having a rubber component comprising a sulfur cured rubber composition composed of, based on 100 parts by weight of rubber (phr): (a) 99 to 50 parts by weight of a first rubber containing olefinic unsaturation; and (b) 1 to 50 parts by weight of a second rubber which is different from said first rubber and which is an elastomeric block copolymer of (1) from 15 to 65 percent by weight, based on the total block copolymer, of butadiene, and (2) from 35 to 85 percent by weight, based on the total block copolymer, of styrene, which block copolymer has: (a) at least two blocks A which have polymerized units of styrene, a glass transition temperature Tg above 25° C.Type: GrantFiled: July 10, 2001Date of Patent: July 29, 2003Assignee: The Goodyear Tire & Rubber CompanyInventors: Annette Lechtenböhmer, Maurice Peter Catharina Jozef Klinkenberg
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Patent number: 6579940Abstract: The present invention provides functionally modified thermoplastic elastomeric compounds composed of at least one polystyrene hard domain, at least one polyolefin rubber domain and at least one cross-linkable compound interspersed within one or more of the domains. Methods for making and using these thermoplastic elastomeric compounds are also provided as are articles made from these compounds along with methods for making such articles.Type: GrantFiled: October 28, 1999Date of Patent: June 17, 2003Assignee: Edwards Lifesciences CorporationInventor: Jeffrey S. Dove
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Patent number: 6579583Abstract: The invention provides a flexible plastic formulation capable of being extruded, blow-molded, ethylene oxide and radiation sterilized. The plastic formulation of the invention comprises: a) from about 60 to about 94 percent by weight of a copolymer consisting essentially of ethylene and vinyl acetate units; b) from about 5 to about 25 percent by weight of a block copolymer, the block copolymer consisting essentially of a central block copolymer molecule including generally equal proportions of ethylene and butylene units, and terminal blocks of polystyrene; and c) from about 1 to about 15 percent by weight of an ultra-low density polyethylene material. The plastic formulations of the invention are useful in the manufacture of blood bags, tubing and the like.Type: GrantFiled: November 13, 2001Date of Patent: June 17, 2003Assignee: Baxter International Inc.Inventor: Indrajit Patel
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Patent number: 6576310Abstract: A medical tubing having rigidity, flexibility, transparency and heat resistance and, additionally, acceptable flexural modulus and tensile strength and further having no stickiness between surfaces of the tubing is provided. The medical tubing is composed of a resin composition containing a low-density ethylene/&agr;-olefin copolymer having a density of 0.860-0.900 g/cm3 polymerized with a metallocene catalyst and a styrene/ethylene-butylene/olefin block copolymer.Type: GrantFiled: January 8, 2001Date of Patent: June 10, 2003Assignee: Nipro CorporationInventor: Mamoru Shimada