Patents Examined by Mark L. Warzel
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Patent number: 6228939Abstract: The present invention relates to the use of polymers near their gelation point as additives to hydrogenated block copolymers to form thermoreversible gels. More particularly, the compositions of this invention are elastomeric and exhibit improved damping capabilities over a wide temperature range and frequency range due to the addition of a novel near-gelation polymer damping additive.Type: GrantFiled: May 19, 1999Date of Patent: May 8, 2001Assignee: Bridgestone CorporationInventors: Xiaorong Wang, Victor J. Foltz
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Patent number: 6214925Abstract: A polymer which is composed of from 50 to 99.98% by weight of a C1-C12 alkyl (meth)acrylate a), from 0.02 to 1.8% by weight of a vinyl-aromatic compound b), from 0 to 10% by weight of an ethylenically unsaturated acid or an ethylenically unsaturated acid anhydride c), and from 0 to 40% by weight of other monomers d), the percentages by weight being based on the polymer.Type: GrantFiled: February 9, 1999Date of Patent: April 10, 2001Assignee: BASF AktiengesellschaftInventors: Bernhard Schuler, Gerhard Auchter, Johannes Türk, Rik Noordijk, Johannes Dobbelaar, Reinhard Bächer, Wolfgang Hümmer
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Patent number: 6194515Abstract: To provide a polyacetal composition with improved toughness, wear resistance, and flowability. The polyacetal composition contains 100 wt % of polyacetal and 0.5-5 wt % of a block copolymer, which has its central portion made of an amorphous polymer that forms an elastic domain at room temperature and which has polyethylene glycol chains with molecular weight of 2000 or higher at its two ends.Type: GrantFiled: October 10, 1997Date of Patent: February 27, 2001Assignee: E. I. du Pont de Nemours and CompanyInventors: Kenichi Shinohara, Edmund Arthur Flexman
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Patent number: 6180685Abstract: A method of making polymeric particulates wherein polymeric scrap material, virgin polymeric material and mixtures thereof are supplied to intermeshing extruder screws which are rotated to transport the polymeric material along their length and subject the polymeric material to solid state shear pulverization and in-situ polymer compatibilization, if two or more incompatible polymers are present. Uniform pulverized particulates are produced without addition of a compatibilizing agent. The pulverized particulates are directly melt processable (as powder feedstock) and surprisingly yield a substantially homogeneous light color product.Type: GrantFiled: January 26, 1998Date of Patent: January 30, 2001Assignee: Northwestern UniversityInventor: Klementina Khait
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Patent number: 6160048Abstract: There is provided a modified ethylene resin produced by subjecting (a) an ethylene resin to modification with (b) an .alpha.,.beta.-unsaturated carboxylic ester having a hydrocarbon-terminated polyalkylene oxide chain, and with (c) an aromatic vinyl compound and/or (d) an ester of an .alpha.,.beta.-unsaturated carboxylic acid with an aliphatic alcohol.There is also provided an ethylene resin composition comprising: (A) 80 to 99.9% by weight of a modified ethylene resin produced by subjecting (a) an ethylene resin to modification at least with (b) an .alpha.,.beta.-unsaturated carboxylic ester having a polyalkylene oxide chain; and (B) 20 to 0.1% by weight of a surfactant.Type: GrantFiled: August 14, 1998Date of Patent: December 12, 2000Assignee: Mitsubishi Chemical CorporationInventors: Tadashi Uyeda, Keiko Matsuhisa, Kenjiro Takayanagi, Mitsutoshi Aritomi
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Patent number: 6156835Abstract: A polymer composite comprising a hydroxy-phenoxyether or polyester polymer matrix having dispersed therein layers of an inorganic material derived from a multilayered inorganic material having organophilic properties. The dispersion of the multilayered inorganic material in the polymer matrix is such that an increase in the average interlayer spacing of the layered inorganic material occurs. This increase in interlayer spacing occurs to a significant extent resulting in the formation of a nanocomposite. The polymers are preferably derived from a diglycidyl ether or ester or an epihalohydrin and a dinucleophile such as a dicarboxylic acid, a difunctional amine, a bisphenol or a sulfonamide. As the organophilic inorganic material clay minerals modified with organic ammonium compounds are used.Type: GrantFiled: August 5, 1998Date of Patent: December 5, 2000Assignee: The Dow Chemical CompanyInventors: Kenneth W. Anderson, Chai-Jing Chou, Jerry E. White, Christine A. Polansky
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Patent number: 6153705Abstract: The invention relates to a process for polymerizing block polymers of general formula (I): ##STR1## in which process the following are brought into contact with each other: an ethylenically unsaturated monomer of formula:CYY'(.dbd.CW--CW').sub.a .dbd.CH.sub.2,a precursor compoun of general formula (II): ##STR2## a radical polymerization initiator.Type: GrantFiled: January 14, 1999Date of Patent: November 28, 2000Assignee: Rhodia ChimieInventors: Pascale Corpart, Dominique Charmot, Samir Z. Zard, Thibaud Biadatti, Daniel Michelet
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Patent number: 6146574Abstract: This invention concerns a composition comprising a blend of polyolefin with the reaction of a functionalized polyolefin and polyetheramine in which the polyetheramine is grafted into the functionalized polyolefin in a customary mixing apparatus. A process for producing the reaction product of functionalized polypropylene and polyetheramine 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. This invention further includes dyeable polyolefin compositions containing the reaction product of functionalized polyolefin and polyetheramine. Dyeable polyolefin fibers, including polypropylene fibers, are disclosed, which may be made by melt spinning, and which may be employed to make woven and non-woven fabric.Type: GrantFiled: June 9, 1998Date of Patent: November 14, 2000Assignee: Huntsman Petrochemical CorporationInventors: Christopher S. Henkee, Wheeler C. Crawford, Richard J. Clark
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Patent number: 6147154Abstract: A chloroprene rubber composition which contains carbon black and of which the breaking elongation A and the static modulus in shear B of the vulcanizate satisfy the following formula:A.gtoreq.-36.4.times.B+1090 (1)where A is the breaking elongation (%) and B is the static modulus in shear (kgf/cm.sup.2).Type: GrantFiled: December 22, 1999Date of Patent: November 14, 2000Assignee: Denki Kagaku Kogyo Kabushiki KaishaInventors: Nobuhiko Fujii, Mitsuyuki Nakada, Kazuomi Aoki
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Patent number: 6140416Abstract: 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: August 3, 1999Date of Patent: October 31, 2000Assignee: Huntsman Petrochemical CorporationInventors: Randall Keith Evans, Richard J. G. Dominguez, Richard J. Clark
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Patent number: 6136914Abstract: Novel solid supported anionic polymerization initiators that are multiply metalated with Group IA alkali metal atoms are provided and employed to produce extremely high molecular weight branched diene polymers. The initiators are prepared by metalating a particle comprising a thermoplastic polymer or a cured elastomer in the presence of a polar coordinator. The polymers obtained by anionic polymerization employing the initiators are multiply branched, with a polymer chain covalently attached to the particle at virtually every metalation site. The macro-branched polymers exhibit desirable properties, such as an extremely high molecular weight, a controlled molecular weight distribution, T.sub.g and vinyl content, and the ability to readily absorb hydrocarbon solvents and oils. The polymers are easily compounded to form vulcanizable elastomeric compounds and articles that have excellent resistance to wear and tear and exhibit reduced hysteresis properties.Type: GrantFiled: March 13, 1998Date of Patent: October 24, 2000Assignee: Bridgestone CorporationInventors: William L. Hergenrother, William M. Cole, Theodore J. Knutson, Georg G. A. Bohm
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Patent number: 6136950Abstract: The invention is directed to a polymer dispersant comprising a substituted polyimide or polyamide backbone, having at least some proportion of oligomeric or polymeric grafted side chains including one of amides, esters, and thioesters, having the general formula: wherein X is at least one of hydrogen, an alkali earth metal ion, an alkaline earth metal ion, ammonium ion, and amine; R is at least one of C.sub.1 to C.sub.6 alkyl(ene) ether and mixtures thereof and C.sub.1 to C.sub.6 alkyl(ene) imine and mixtures thereof; Q is at least one of oxygen, nitrogen, and sulfur; p is a number from 1 to about 300 resulting in at least one of a linear and branched side chain; R.sub.1 is at least one of hydrogen, C.sub.1 to C.sub.Type: GrantFiled: September 23, 1997Date of Patent: October 24, 2000Assignee: MBT Holding AGInventors: Thomas M. Vickers, Jr., Runhai Lu, Lynn E. Brower, Samy M. Shendy, Rainer Packe-Wirth, Hong Gao
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Patent number: 6133338Abstract: The present invention relates to an adhesive having high adhesiveness to a metal, especially a noble metal and a noble metal alloy. This adhesive comprises a thiouracil derivative typified by 6-methacryloyloxyhexyl 2-thiouracil-5-carboxylate, a radical-polymerizable monomer such as 2,2-bis(4-(methacryloxyethoxy)phenyl)propane, and a polymerization initiator, and as required, a filler.Type: GrantFiled: August 4, 1998Date of Patent: October 17, 2000Assignee: Tokuyama CorporationInventors: Mikio Kimura, Masayuki Aizawa
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Patent number: 6133349Abstract: Compositions which have substantial weatherability and impact resistance include a substantially uniform blend of (1) a physical mixture of an uncross-linked acrylonitrile/styrene copolymer and a cross-linked alkyl acrylate/graft (meth)acrylate copolymer; and (2) a filler component, preferably wood, in an amount effective as a filler in the composition. Methods for making such compositions include forming a substantially uniform physical blend of such copolymers and filler component. The compositions preferably are substantially free of cross-linked acrylonitrile/styrene copolymer.Type: GrantFiled: September 29, 1998Date of Patent: October 17, 2000Assignee: Hughes Processing, Inc.Inventor: Roderick E. Hughes
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Patent number: 6127480Abstract: This invention concerns a composition comprising a blend of polyolefin with the reaction of a functionalized polyolefin and polyetheramine in which the polyetheramine is grafted into the functionalized polyolefin in a customary mixing apparatus. A process for producing the reaction product of functionalized polypropylene and polyetheramine 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. This invention further includes dyeable polyolefin compositions containing the reaction product of functionalized polyolefin and polyetheramine. Dyeable polyolefin fibers, including polypropylene fibers, are disclosed, which may be made by melt spinning, and which may be employed to make woven and non-woven fabric.Type: GrantFiled: October 19, 1999Date of Patent: October 3, 2000Assignee: Huntsman Petrochemical CorporationInventors: Richard Joseph Gilbert Dominguez, Christopher S. Henkee, Wheeler C. Crawford, Gerald W. Cummings, Kevin John Hess, Richard James Clark, Randall Keith Evans
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Patent number: 6117928Abstract: The invention relates to polylactide films the mechanical properties of which, in particular bursting strength, elongation and tearing strength, have been improved by adding to the polymer certain plasticizers. These plasticizers are preferably glycerol esters.Type: GrantFiled: February 1, 1999Date of Patent: September 12, 2000Assignee: Neste OyInventors: Elina Hiltunen, Johan-Fredrik Selin, Maria Skog
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Patent number: 6117943Abstract: A blend of a polyarylene ether and a dispersible reactive solvent such as a thermoplastic polyurethane or a cyclopentadiene can be processed at temperatures below the oxidative degradation temperature of the polyarylene ether, yet form an article upon cooling that substantially retains the properties of the polyarylene ether.Type: GrantFiled: March 1, 1999Date of Patent: September 12, 2000Assignee: The Dow Chemical CompanyInventors: Edward Louis d'Hooghe, Jeno Kurja
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Patent number: 6111021Abstract: A vulcanizable rubber composition comprising a blend which is prepared by micro-dispersing a polyolefin resin (B) in an ethylene-.alpha.-olefin-nonconjugated polyene copolymer rubber (A) comprising ethylene, a C.sub.3 -C.sub.20 .alpha.-olefin and a nonconjugated polyene in a molten state and in which the mean diameter of dispersed particles of the polyolefin resin (B) is 2 .mu.m or below and the (B) to (A) weight ratio ranges from 5/95 to 50/50. The micro-dispersion of a polyolefin resin (B) can easily be attained by kneading the components (A) and (B) together with compounding ingredients (such as reinforcement, filler, softener, vulcanization accelerator, vulcanizing agent and so on) in a rubber kneader, through the resin (B) is essentially difficult of micro-dispersion. Further, the composition enables the provision of rubber articles having a high and constant quality at a low cost, because the resin (B) can well be dispersed by conventional rubber kneaders in a short time without fail.Type: GrantFiled: January 2, 1998Date of Patent: August 29, 2000Assignee: Mitsui Chemicals IncInventors: Hidenari Nakahama, Masaaki Kawasaki, Yuji Ishii, Tetsuo Tojo, Taku Koda, Yoshio Maejima, Yuji Miura, Yasuhiro Hosomi
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Patent number: 6107388Abstract: The resin compositions of the present invention have an excellent property balance between rigidity and impact resistance and give interior automotive parts having satisfactory moldability. The compositions are especially suitable for use as interior automotive parts conforming to regulations regarding head protection against impacts.The invention provides: a polyolefin resin composition comprising 78 to 87% by weight specific high-rigidity polypropylene/propylene-ethylene block copolymer, 12 to 17% by weight ethylene-(higher .alpha.-olefin) copolymer rubber, and 1 to 5% by weight hydrogenated diene block copolymer; and a molding resin composition obtained by incorporating, into the above resin composition, talc in an amount of 20 to 25% by weight based on the total weight of the composition and one or more optional additives.Type: GrantFiled: April 28, 1999Date of Patent: August 22, 2000Assignee: Chisso CorporationInventors: Akihiko Sanpei, Yozo Shimomura, Tooru Fukazawa, Hiroshi Suzuki
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Patent number: 6103374Abstract: A composition comprising:(a) polyolefin;(b) as a scorch inhibitor, 4,4'-thiobis(2-methyl-6-t-butyl phenol); 2,2'-thiobis(6-t-butyl-4-methylphenol); or mixtures thereof;(c) hydroquinone; a substituted hydroquinone; or mixtures thereof in an amount sufficient to control color formation; and(d) an organic peroxide.Type: GrantFiled: June 16, 1998Date of Patent: August 15, 2000Assignee: Union Carbide Chemicals & Plastics Technology CorporationInventor: Michael John Keogh