Solid Polymer Derived From Ethylenic Reactant Containing A Heterocyclic Nitrogen Patents (Class 525/203)
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Patent number: 6723757Abstract: The present invention relates to novel compatible binary and ternary cation-exchanger polymer and anion-exchanger polymer blend membranes.Type: GrantFiled: February 9, 2001Date of Patent: April 20, 2004Assignees: Universitat Stuttgart Lehrstuhl, Institut fur Chemische VerfahrenstechnikInventors: Jochen Kerres, Andreas Ullrich, Thomas Häring
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Patent number: 6723790Abstract: Polymers containing &agr;-methylenelact(ones)(ams) such as &agr;-methylenebutyrolactones are useful in blends with other polymers. For examples such polymers which have reactive groups are toughened by mixing with a rubbery material which has complimentary reactive groups, or polymers containing repeat units derived from &agr;-methylenelact(ones)(ams) are toughened by mixing with polymeric core-shell particles having an elastomeric core and a specified thermoplastic shell. The properties of thermoplastics are also improved by blending with &agr;-methylenelact(ones)(ams) such as &agr;-methylenebutyrolactones containing (co)polymers.Type: GrantFiled: June 21, 2001Date of Patent: April 20, 2004Assignee: E. I. du Pont de Nemours and CompanyInventors: Charles J. Brandenburg, David M. Dean, George Henry Hofmann, Rutger D. Puts, Edmund A. Flexman
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Patent number: 6720387Abstract: A hot-melt adhesive composition comprises a blend of at least one acidic polymer and at least one basic polymer. At least one of the polymers is a hot-melt adhesive. Thermally reversible crosslinks are formed between each of the two polymers. These crosslinks impart cohesive strength to the applied adhesive, without sacrificing ease of processing.Type: GrantFiled: February 18, 1998Date of Patent: April 13, 2004Assignee: 3M Innovative Properties CompanyInventors: Peter A. Stark, Audrey A. Sherman, Albert I. Everaerts
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Publication number: 20040002574Abstract: An aromatic block polycarbonate resin is prepared by polymerizing a diphenol compound of formula (2) or (4), a diol compound of formula (1) or (5), and a halogenated carbonyl compound. The diphenol compound of formula (4) is produced by polymerizing the diphenol compound of formula (2) and a halogenated carbonyl compound by solution or interfacial polymerization. An electrophotographic photoconductor has an electroconductive support and a photoconductive layer formed thereon containing the above-mentioned aromatic block polycarbonate resin. An electrophotographic image forming method or apparatus employs the above-mentioned photoconductor. A process cartridge holds therein the photoconductor and at least one of the electrophotographic image forming units.Type: ApplicationFiled: January 22, 2003Publication date: January 1, 2004Applicants: RICOH COMPANY, LTD., Hodogaya Chemical Co., Ltd.Inventors: Kohkoku Ri, Masaomi Sasaki, Kazukiyo Nagai, Shinichi Kawamura, Susumu Suzuka, Katsuhiro Morooka
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Publication number: 20030232923Abstract: A pseudo cross-link type resin composition made of one of resins or a mixture of the resins;Type: ApplicationFiled: June 17, 2002Publication date: December 18, 2003Inventors: Tetsuro Yamanaka, Yukihiko Yamashita, Kenji Kanemaru
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Publication number: 20030216519Abstract: The present invention provides novel compositions prepared from a first oligomer containing reactive functional groups capable of reaction at effective rates (at normal processing temperatures) with a co-reactive second component oligomer possessing functionality that is complementary to that of the first oligomer. The compositions may be used as coatings, including hard surface coatings, clear coatings, powder coatings and pattern coatings; as adhesives, including pressure sensitive adhesives and hot melt adhesives; as sealants; as optical coatings; as blown microfibers (BMF); as high refractive index optical materials; as barrier films; in microreplication; as low adhesion backsizes, (LABs) and as release coatings.Type: ApplicationFiled: June 4, 2003Publication date: November 20, 2003Applicant: 3M Innovative Properties CompanyInventors: Steven M. Heilmann, Babu N. Gaddam, Ahmed S. Abuelyaman, Duane D. Fansler, Todd D. Jones, Maureen A. Kavanagh, Kevin M. Lewandowski, Michael S. Wendland
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Publication number: 20030212210Abstract: The present invention provides melt-processible adhesive compositions prepared from a first oligomer containing reactive functional groups capable of reaction at effective rates (at normal processing temperatures) with a co-reactive second component oligomer possessing functionality that is complementary to that of the first oligomer. The compositions may be used as coatings, including hard surface coatings, clear coatings, powder coatings and pattern coatings; as adhesives, including pressure sensitive adhesives and hot melt adhesives; as sealants; as optical coatings; as blown microfibers (BMF); as high refractive index optical materials; as barrier films; in microreplication; as low adhesion backsizes, (LABs) and as release coatings.Type: ApplicationFiled: June 4, 2003Publication date: November 13, 2003Applicant: 3M Innovative Properties CompanyInventors: Steven M. Heilmann, Babu N. Gaddam, Ahmed S. Abuelyaman, Duane D. Fansler, Todd D. Jones, Maureen A. Kavanagh, Kevin M. Lewandowski, Michael S. Wendland
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Patent number: 6632887Abstract: Hydrophilic coatings for implantable ophthalmic lenses are disclosed. The coatings, which are applied to the edge surface of the ophthalmic lens, comprise a hydrophobic (meth)acrylic polymer and a hydrophilic polymer. When hydrated, the coatings reduce or eliminate edge glare.Type: GrantFiled: March 29, 2002Date of Patent: October 14, 2003Assignee: Alcon Universal Ltd.Inventors: Albert R. LeBoeuf, John W. Sheets, Jr.
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Patent number: 6620905Abstract: Curable compositions comprise a benzoxazine compound or resin in combination with at least one additional curable compound or resin. Optionally, the composition will further comprise a curing agent and/or a filler. These compositions have utility as adhesives, coatings and encapsulants, especially for use within the semiconductor fabrication industry, with particular utility as die attach adhesives, films, and underfill materials, such as no-flow underfills, capillary flow underfills, wafer level underfills, and as lead free solders.Type: GrantFiled: February 23, 2002Date of Patent: September 16, 2003Assignee: National Starch and Chemical Investment Holding CorporationInventor: Osama M. Musa
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Publication number: 20030153642Abstract: A pressure sensitive adhesive comprising a mixture ofType: ApplicationFiled: December 23, 2002Publication date: August 14, 2003Applicant: BASF AktiengesellschaftInventors: Heiko Diehl, Karl-Heinz Schumacher, Ralf Fink, Martin Jung
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Patent number: 6579944Abstract: A thermoplastic vulcanizate (TPV) is produced by melt blending until the volume fraction of dispersed rubber particles is greater than 0.5 preferably from 0.55 to 0.95, the remaining being the dispersed continuous plastic phase in a manner so as to develop a morphology which generates optimum elastic recovery. The majority (by volume) of large rubber particles are adjacent a small particle which is separated from one or more large particles by a critically thin, less than 0.1 $G(m)m thick, ligament of deformable plastic. When the majority of large particles evidence this morphology, as seen in a transmission electron microscope (TEM) photomicrograph, the TPV exhibits unexpectedly higher elastic recovery than if the ligaments were thicker. The foregoing is simulated in a micromechanical model which confirms, and in retrospect, predicts the observed actual elastic recovery of the TPV.Type: GrantFiled: January 15, 2002Date of Patent: June 17, 2003Assignee: Advanced Elastomer Systems LPInventors: Sabet Abdou-Sabet, Kenneth Emery Kear, Mary C. Boyce, Karla Drew Shaw
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Patent number: 6565616Abstract: The invention relates to blends of copolymers containing structural units of olefins, derivatives of dibasic carboxylic acids and, if required, polyolefins and, structural units of ethylene and vinyl esters of tertiary carboxylic acids, and their use as additives to fuel oils for improving their cold flow properties.Type: GrantFiled: March 14, 2001Date of Patent: May 20, 2003Assignee: Clariant GmbHInventors: Matthias Krull, Thomas Volkmer, Werner Reimann
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Patent number: 6559231Abstract: The present invention relates to a curing type water base resin composition comprising: (I) a copolymer obtained by copolymerizing an ethylenically unsaturated monomer (a) having a maleimide group, an ethylenically unsaturated monomer (b) having a carbonyl group and other ethylenically unsaturated monomer (c) and (II) a compound having two or more groups per molecule which are the same or different and selected from a hydrazide group, a semicarbazide group and hydrazone group and further comprising, if necessary, as an additional component: (III) a copolymer having a carbonyl group and/or (IV) a water base polyurethane resin having a carbonyl group or a hydrazine group.Type: GrantFiled: November 30, 2001Date of Patent: May 6, 2003Assignee: Kansai Paint Co., Ltd.Inventors: Mitsutaka Hasegawa, Hiroshi Inukai, Eiichi Okazaki, Nobushige Numa, Masami Sugishima, Koki Nakamura, Keiichiro Saikawa, Yushichi Ishihara
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Publication number: 20030064051Abstract: N-halamine biocidal materials and coatings are provided. Monomeric oxazolidinones or hydantoins are homopolymerized or copolymerized with other monomers so as to produce materials or coatings, which upon exposure to solutions of chlorine or bromine become biocidal. The biocidal materials and coatings are effective at inactivating microorganisms upon surface contact and are regenerable following loss of efficacy upon further exposure to solutions of chlorine or bromine. Surfaces which could be treated with the materials and coatings include, but are not limited to: glass, plastic, metals, fibers, and wood for use in pool and tank liners, food wrappers, catheters, paints, tiles, shower walls, fabrics, sterile bandages, pipes, medical and dental coatings, preservatives, and the like.Type: ApplicationFiled: September 3, 2002Publication date: April 3, 2003Applicant: Auburn UniversityInventors: Shelby D. Worley, Michael W. Eknoian, Yanjun Li
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Publication number: 20030032746Abstract: Hetero-telechelic polymers having the formula:Type: ApplicationFiled: June 21, 2002Publication date: February 13, 2003Inventors: James A. Schwindeman, Robert J. Letchford, Conrad W. Kamienski, Roderic P. Quirk
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Patent number: 6512051Abstract: An elastomer composition including an elastomer having a functional group, and a compound having a functional group, in which corresponding functional groups form a cross-link by at least one of an ionic bond, a hydrogen bond, and Diels-Alder reaction with temperatures, i.e., by heating, while the cross-link is cleaved at around room temperature, forming and cleaving of the cross-link being reversible.Type: GrantFiled: January 21, 1999Date of Patent: January 28, 2003Assignee: The Yokohama Rubber Co., Ltd.Inventors: Keisuke Chino, Masahiro Ikawa, Makoto Ashiura
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Patent number: 6506840Abstract: A process for producing a succinimide resin composition is provided which comprises reacting a maleic anhydride-olefin type copolymer constituted of 40-60 mol % of maleic anhydride units, 60-40 mol % of olefin units, and 0-20 mol % of a copolymerizable monomer units with one or more amine compounds for imide formation in the presence of a second polymer other than the succinimide resin. This process improves the productivity by lowering the torque in the extrusion reaction, giving a succinimide copolymer resin composition having low yellowness and high transparency with high production efficiency.Type: GrantFiled: April 16, 2001Date of Patent: January 14, 2003Assignee: Tosoh CorporationInventors: Takeshi Harunari, Yoshiki Uchida, Toru Doi
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Patent number: 6455634Abstract: The present invention relates to a blend of at least one (meth)acrylate polymer and at least one amorphous propylene-derived polymer, and an optional tackifier that provide pressure sensitive adhesive compositions in which improved peel adhesion to at least one of low and relatively high surface energy substrates can be achieved.Type: GrantFiled: December 29, 2000Date of Patent: September 24, 2002Assignee: 3M Innovative Properties CompanyInventors: Ashish K. Khandpur, Eugene G. Joseph, Greggory S. Bennett
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Patent number: 6451915Abstract: A thermoplastic elastomer formed by a process comprising the steps of dynamically vulcanizing a rubber within a mixture that includes the rubber, from about 10 to about 80 percent by weight of a thermoplastic resin based upon the total weight of the rubber and the thermoplastic combined, and from about 1 to about 25 percent by weight of a polymeric processing additive based upon the total weight of the rubber and the thermoplastic combined, where the polymeric processing additive is a linear polyolefin resin that has an melt flow rate that is greater than about 1,000 dg/min, a diene-modified polyolefin polymer that has an melt flow rate that is greater than about 1,000 dg/min, from about 0.005 to about 2.00 mole percent polymeric units deriving from dienes, and a viscosity average branching index that is from about 0.4 to about 0.Type: GrantFiled: December 29, 2000Date of Patent: September 17, 2002Assignees: Advanced Elastomer Systems, L.P., ExxonMobil Chemical Patents, Inc.Inventors: Maria D. Ellul, Paul E. McDaniel, Thomas L. Peltier, Jianya Cheng, Patrick Brant, Armenag H. Dekmezian
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Publication number: 20020111436Abstract: A polymer composition containing carboxyl group which is excellent in water solubility, thickening properties and flow characteristics. This composition comprises (A) a crosslinked polymer comprising (a) an &agr;,&bgr;-unsaturated carboxylic acid and (b) a compound having at least two ethylenically unsaturated groups, and (B) at least one polymer selected from among polymers comprising vinylpyrrolidone as an essential monomer and polyethylene oxide.Type: ApplicationFiled: November 15, 1999Publication date: August 15, 2002Inventors: MASATO FUJIKAKE, SHINJI KOBAYASHI, SHIGEKI HAMAMOTO, MITSUTAKA TABATA, TOMOKI KAWAKITA
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Patent number: 6403224Abstract: The present invention relates to a coated film comprising: a polyester film, a coating layer on said polyester film formed by applying a coating solution containing a polymer (A) on the surface of said polyester film, wherein said polymer (A) comprises a copolymer containing a monomer having oxazoline groups, (meth)acrylonitrile, and styrene, then drying and stretching the film, and a overcoat layer on said coating layer formed by applying an aqueous coating solution.Type: GrantFiled: June 12, 2000Date of Patent: June 11, 2002Assignee: Mitsubishi Polyester Film CorporationInventors: Nariaki Okajima, Yoshio Shimizu
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Patent number: 6395833Abstract: A thermoplastic elastomeric resin composition for powder molding, comprising a composition prepared by dynamically vulcanizing (a) a block copolymer of a vinyl aromatic compound and a conjugated diene compound, and/or a hydrogenated block copolymer thereof, (b) a non-aromatic softening agent for rubber, (c) a peroxide-decomposing olefinic resin, (d) an unsaturated glycidyl compound, (e) an unsaturated carboxylic acid or a derivative thereof, and (f) a liquid polybutadiene, and (h) at least one material selected from the group consisting of polyester, polyurethane, and polyamide polymers and copolymers; characterized in that (p) a compound represented by the following chemical formula (I) is also comprised: H2C═CH—CH2—O—(CnH2nO)m—X (I) wherein n is an integer of from 2 to 5, CnH2n may be branched, x represents H or CH═CH2, m is the number of the repeating unit, CnH2nO, and a number average molecular weight of the compound is in a range of from 200 to 6,000.Type: GrantFiled: September 21, 2000Date of Patent: May 28, 2002Assignee: Riken Technos CorporationInventors: Michihisa Tasaka, Toshimi Yamanaka
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Patent number: 6294311Abstract: Imageable elements useful as lithographic printing members are disclosed. The elements contain a substrate, an underlayer, and a top layer. The underlayer contains a combination of polymeric materials that provides resistance both to fountain solution and to aggressive washes, such as a UV wash. The underlayer can be used in either thermally imageable or photochemically imageable elements.Type: GrantFiled: December 22, 1999Date of Patent: September 25, 2001Assignee: Kodak Polychrome Graphics LLCInventors: Ken-ichi Shimazu, Jayanti Patel, Jianbing Huang, Nishith Merchant, Mathias Jarek
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Publication number: 20010003584Abstract: Combinations of polymer compounds and hair treatment compositions containing them are described, which have improved film-forming properties and improved hair-fixing properties, particularly increased elasticity of the polymer film or the treated hair. The polymer compound combinations include at least one terpolymer of vinyl pyrrolidone, vinyl caprolactam and basic acryl amide monomer and at least one anionic or anionizable polymer with anionic or anionizable groups.Type: ApplicationFiled: December 4, 2000Publication date: June 14, 2001Inventors: Susanne Birkel, Michael Lede
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Patent number: 6160054Abstract: Hetero-telechelic polymers having the formula:FG--(Q).sub.d --Z--J--[A(R.sup.1 R.sup.2 R.sup.3)].sub.x (I)wherein FG is a protected or non-protected functional group; Q is a saturated or unsaturated hydrocarbyl group derived by incorporation of a compound selected from the group consisting of conjugated diene hydrocarbons, alkenylsubstituted aromatic hydrocarbons, and mixtures thereof; d is an integer from 10 to 200; Z is a branched or straight chain hydrocarbon group which contains 3-25 carbon atoms, optionally containing aryl or substituted aryl groups; J is oxygen, sulfur, or nitrogen; [A(R.sup.1 R.sup.2 R.sup.3)].sub.x is a protecting group, wherein A is an element selected from Group IVa of the Periodic Table of Elements; R.sup.1, R.sup.2, and R.sup.Type: GrantFiled: July 18, 1996Date of Patent: December 12, 2000Assignee: FMC CorporationInventors: James A. Schwindeman, Robert J. Letchford, Conrad W. Kamienski, Roderic P. Quirk
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Patent number: 6127482Abstract: A composition comprising:(a) polyethylene;(b) a cure booster selected from the group consisting of 3,9-divinyl-2,4,8,10-tetra-oxaspiro[5.5]undecane (DVS); a copolymer of ethylene and DVS; and an ethylene homopolymer or copolymer having DVS grafted thereto; and(c) an organic peroxide.Type: GrantFiled: March 31, 1999Date of Patent: October 3, 2000Assignee: Union Carbide Chemicals & Plastics Technology CorporationInventor: Michael John Keogh
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Patent number: 6111018Abstract: There is disclosed a resin composition comprising about 99-1% by weight of a vinyl chloride resin and about 1-99% by weight of a copolymer of about 30-70 mol % N-substituted maleimide structural unit and about 70-30 mol % olefinic structural unit. The composition has excellent forming and molding properties and provides formed or molded products of improved heat resistance and mechanical properties.Type: GrantFiled: October 7, 1998Date of Patent: August 29, 2000Assignee: Tosoh CorporationInventors: Toru Doi, Hiroshi Inoue
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Patent number: 6099759Abstract: The present invention has for subjects, novel benzopyran derivatives, substituted in position 2 with an adamantyl group as well as the compositions and (co)polymer matrices containing such derivatives. Said derivatives possess interesting photochromic properties.Type: GrantFiled: December 21, 1998Date of Patent: August 8, 2000Assignee: Corning IncorporatedInventor: You-Ping Chan
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Patent number: 6084032Abstract: A polymer composition containing carboxyl groups which has excellent water solubility, thickening properties and flow characteristics. The composition comprises (A) a crosslinked polymer comprising (a) an .alpha.,.beta.-unsaturated carboxylic acid and (b) a compound having at least two ethylenically unsaturated groups, and (B) at least one polymer comprising N-vinylpyrrolidone as essential monomer.Type: GrantFiled: April 22, 1998Date of Patent: July 4, 2000Assignee: Sumitomo Seika Chemicals Co., Ltd.Inventors: Masato Fujikake, Shinji Kobayashi, Shigeki Hamamoto, Mitsutaka Tabata, Tomoki Kawakita
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Patent number: 6069202Abstract: Desirable thermoplastic vulcanizates can be prepared from a polar engineering thermoplastic; a halogenated copolymer of p-alkylstyrene and an isomonoolefin having from 4 to 7 carbon atoms; and either an ethylene rubbery polymer or a diene based rubbery polymer or combinations thereof. The ethylene rubbery polymer desirably has at least one pendant carboxylic acid group, amine group, epoxy group, hydroxyl group or an anhydride of two carboxylic acid groups or combinations thereof. Desirable diene based rubbery polymers include epoxidized natural rubber and epoxidized homopolymers and copolymers of dienes.Type: GrantFiled: December 10, 1997Date of Patent: May 30, 2000Assignee: Advanced Elastomer Systems, L.P.Inventors: Krishna Venkataswamy, Jacques Horrion
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Patent number: 6046277Abstract: The use of redispersible polymer powders or polymer granules for coating pharmaceutical or agrochemical use forms, consisting ofa) 10-95% by weight of polyvinyl acetate,b) 5-90% by weight of an N-vinylpyrrolidone-containing polymer,c) 0-20% by weight of another water-soluble or water-swellable substance andd) 0-20% by weight of a water-insoluble dusting agent with or withoute) other additives.Type: GrantFiled: March 10, 1998Date of Patent: April 4, 2000Assignee: BASF AktiengesellschaftInventors: Karl Kolter, Kristin Tiefensee, Reinhold Stadler, Katrin Zeitz
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Patent number: 5959009Abstract: The invention relates to waterproof or water resistant compositions for application to the lashes comprising a styrene-ethylene-propylene copolymer as gellant, a film forming agent, and a volatile oil.Type: GrantFiled: October 31, 1997Date of Patent: September 28, 1999Assignee: E-L Management CorpInventors: Richard A. Konik, Rachel J. Painter, George J. Stepniewski
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Patent number: 5948866Abstract: A powder paint composition and application method therefor are provided which can form a paint coating which has superior mar resistance and for which the external appearance, such as its smoothness and sharpness, is excellent.This paint powder composition comprises a multi-functional vinyl-type copolymer (A) which has a glass transition temperature of 40.degree. C. and which contains functional groups which are reactable with carboxylic acid; a polycarboxylic acid (B); and a multi-functional vinyl-type copolymer (C) which has a glass transition temperature of 0.degree. C. and which contains functional groups which are reactable with carboxylic acid.Type: GrantFiled: August 19, 1997Date of Patent: September 7, 1999Assignee: Dainippon Ink and Chemicals, Inc.Inventors: Hirofumi Takeda, Ikuo Nakaya, Michiya Sugiyama, Akio Shoji
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Patent number: 5919864Abstract: A thermoplastic elastomer composition containing a thermoplastic resin component including 10 to 95% by weight of a polypropylene having a syndiotactic structure and an elastomer component and having a value of .alpha., defined as follows, of 1 or less:.alpha.=(.phi.d/.phi.m).times.(.eta.m/.eta.d)wherein the volume fraction of the thermoplastic resin component is .phi.m, the melt viscosity thereof at the mixing conditions is .eta.m and the volume fraction of the elastomer component is .phi.d, the melt viscosity thereof is .eta.d.Type: GrantFiled: March 6, 1998Date of Patent: July 6, 1999Assignee: The Yokohama Rubber Co., Ltd.Inventors: Jiro Watanabe, Osamu Ozawa, Noriaki Kuroda, Gou Kawaguchi
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Patent number: 5919845Abstract: The present invention relates to a powder coating having improved surface properties which contains from 0.05 to 5% by weight, preferably 0.5 to 1.5% by weight, of aliphatic polyvinyl ethers.Type: GrantFiled: April 23, 1998Date of Patent: July 6, 1999Assignee: BASF Coatings AGInventors: Richard Foukes, Klaus Cibura, Rolf Boysen, Josef Rademacher
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Patent number: 5908898Abstract: Electrically conductive polymer blends are produced from an insulating thermoplastic polymer phase and a conductivity enhancing composition that forms a continuous conductive phase and includes an intrinsically conductive polymer salt that is incompatible with the thermoplastic polymer, a thermoplastic conductive phase polymer and a plasticizer that is capable of compatibilizing the conductive phase polymer and the intrinsically conductive polymer salt. The intrinsically conductive polymer salt is concentrated in the continuous conductive phase Methods are also provided for the preparation of these conductive polymer blends.Type: GrantFiled: February 12, 1998Date of Patent: June 1, 1999Assignee: Monsanto CompanyInventors: Lucy Ka Po Wan-Cheng, Lawrence W. Shacklette, Chien-Chung Han
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Patent number: 5907011Abstract: Heterogeneous, solvent- and plasticizer-free polyvinyl ester dispersions which are stabilized by protective colloids and which have a minimum filming temperature of below 10.degree. C. are disclosed. These dispersions are made of a mixture of(a) a homopolymer or copolymer A having a glass transition temperature of above 20.degree. C., whereby homopolymer or copolymer A includes(i) from 85 to 100% by weight of at least one vinyl ester of carboxylic acids having 1 to 18 carbon atoms;(ii) from 0 to 5% by weight of at least one .alpha., .beta.-unsaturated carboxylic acid;(iii) from 0 to 5% by weight of at least one mono-olefinically unsaturated compound (a3) having at least one amino or amido group, and(iv) from 0 to 5% by weight of at least one polyethylenically unsaturated monomer, and(b) a copolymer B having a glass transition temperature of below 20.degree. C.Type: GrantFiled: March 31, 1997Date of Patent: May 25, 1999Assignee: Clariant GmbHInventors: Martin Jakob, Detlev Seip, Volker Matz, Stefan Hess
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Patent number: 5891956Abstract: Water-soluble polymers including functionalization from the group of amino groups, carboxylic acid groups, phosphonic acid groups, phosphonic ester groups, acylpyrazolone groups, hydroxamic acid groups, aza crown ether groups, oxy crown ethers groups, guanidinium groups, amide groups, ester groups, aminodicarboxylic groups, permethylated polyvinylpyridine groups, permethylated amine groups, mercaptosuccinic acid groups, alkyl thiol groups, and N-alkylthiourea groups are disclosed.Type: GrantFiled: May 30, 1995Date of Patent: April 6, 1999Assignee: The Regents of the University of California, Office of Technology TransferInventors: Barbara F. Smith, Thomas W. Robison, Joel W. Gohdes
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Patent number: 5717033Abstract: A particulate polymer A having a mean particle size of less than 1000 nm consists ofa1: up to 99.8% by weight of at least one vinylaromatic monomer a1,a2: up to 99.8% by weight of at least one alkyl methacrylate a2 where the alkyl radical is of 1 to 8 carbon atoms,a3: up to 50% by weight of at least one polar, copolymerizable, ethylenically unsaturated monomer a3,a4: from 0.1 to 10% by weight of at least one polyfunctional, crosslinking monomer a4 anda5: from 0.1 to 15, preferably from 0.5 to 10, % by weight of at least one monomer a5 containing one or more acidic, basic or epoxy groups,the sum of the components a1, a2 and a3 being from 75 to 99.8% by weight, based on A, and the sum of a1, a2, a3, a4 and a5 being 100% by weight, based on A.Type: GrantFiled: September 18, 1996Date of Patent: February 10, 1998Assignee: BASF AktiengesellschaftInventors: Wolfgang Fischer, Norbert Guntherberg, Graham Edmund McKee
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Patent number: 5654032Abstract: The invention resides in a photosensitive composition for screen printing. Preferably, the composition of the invention comprises a polymer comprising a vinylpyridine monomer or polymer having a pyridinium salt character and a photoreactable constituent. The resulting stencil, once dried, exposed, cured, and subjected to alkaline treatment obtains enhanced solvent/water resistance but can be reclaimed using an acidic wash. In use, the stencil provides a screen/stencil assembly or blockout utility of high structural integrity through repeated use and screen printing images of high resolution and quality.Type: GrantFiled: May 26, 1995Date of Patent: August 5, 1997Assignee: The Chromaline CorporationInventors: Alexander S. Gybin, Kyle K. Johnson, Toshifumi Komatsu, Lawrence C. Vaniseghem
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Patent number: 5641562Abstract: Disclosed is a water-shrinkable film prepared from a composition comprising an elastomeric polymer and a water-dispersible polymer. Also disclosed is a disposable absorbent product, intended for the absorption of body fluids, including the film. The film is useful in imparting improved water-shrinkability properties to the disposable absorbent product.Type: GrantFiled: December 30, 1994Date of Patent: June 24, 1997Assignee: Kimberly-Clark Worldwide Inc.Inventors: Jennifer Cappel Larson, Dave Allen Soerens
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Patent number: 5578661Abstract: A gel forming system comprising an aqueous mixture of a first component of at least one water-soluble polymer in an amount sufficient to increase the initial viscosity of the mixture and impart adhesivity properties thereto; a second component of a acid-containing polymer; a third component of an amino-containing polymer; and water. This system has a pH in the range of between about 5.5 and 8.5 and the second and third components are each present in sufficient amounts which, in combination, increase the cohesiveness of the mixture over time, such that the mixture can be initially combined in a relatively fluid state and subsequently forms a cohesive gel structure.Type: GrantFiled: March 31, 1994Date of Patent: November 26, 1996Assignee: Nepera, Inc.Inventors: Adrian S. Fox, Amy E. Allen
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Patent number: 5548029Abstract: Graft copolymers which are isoolefin/para-alkylstyrene copolymer represented by the formula ##STR1## in which R and R' can be hydrogen, alkyl, and the primary and secondary alkyl halides, "a" ranges from about 14 to about 70,000, "b" ranges from 0 to about 70,000, "c" ranges from 0 to about 70,000, "d" ranges from about 1 to about 70,000, X is a halogen, and Nu is a nucleophilic residue provided by a polymeric nucleophile.Type: GrantFiled: March 15, 1995Date of Patent: August 20, 1996Assignee: Exxon Chemical Patents Inc.Inventors: Kenneth W. Powers, Hsien-Chang Wang, T-C. Chung, Anthony J. Dias, Joseph A. Olkusz
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Patent number: 5520849Abstract: New electrically conductive polymer compositions comprisei) an electrically conductive polymer a) of one or more oxidatively polymerizable aromatic compounds andii) a polymer d) having ammonium, phosphonium or sulfonium groups in the polymer chain(s).The polymer compositions comprising polymers a) and d) are prepared by oxidative polymerization of one or more aromatic compounds in the presence of a polymer b) having ammonium, phosphonium or sulfonium groups in the polymer chain(s) and containing a polydentate anionic complex which has a redox potential sufficient for enabling oxidative polymerization of the aromatic compounds. Said polymer b) which has a non-metallic anionic complex such as S.sub.2 O.sub.8.sup.2- is also novel.Type: GrantFiled: June 23, 1994Date of Patent: May 28, 1996Assignees: The Dow Chemical Company, Deborah C. DuludeInventor: Jurgen Eiffler
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Patent number: 5519063Abstract: Use in association, as oil thickners, in a cosmetic composition comprising an oily phase, of at least one first copolymer including patterns derived from at least one lipophilic monomer and patters derived from at least one hydrophilic monomer, comprising at least one carboxylic acid or sulphonic grouping, and of at least one second copolymer including patterns derived from at least one lipophilic monomer and patterns derived from at least one hydrophilic monomer comprising at least one amine, amide, alcohol or ether grouping. Said first and second copolymers have a molecular weight of not less than approximately 100 000. The association enables thickened composition to be obtained, the texture, look and feel of which correspond to a cosmetic use.Type: GrantFiled: May 10, 1993Date of Patent: May 21, 1996Assignee: L'OrealInventors: Jean Mondet, Bertrand Lion, Didier Candau, Pascal Simon
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Patent number: 5508348Abstract: A composite is formed wherein particles of a conductive polymer are uniformly distributed within a processable non-conductive polymer. In the method of the invention, an inverted emulsion is formed by dispersing an aqueous solution of oxidant in an organic solvent comprising a host polymer and an oil-soluble surfactant. A monomer whose polymerization yields a conductive polymer which is dissolved in a solvent miscible with the organic solvent of the emulsion is then added dropwise to the emulsion with agitation. The composite is separated from the emulsion and the precipitate is washed and dried.Type: GrantFiled: August 12, 1994Date of Patent: April 16, 1996Assignee: The Research Foundation of SUNYInventors: Eli Ruckenstein, Liang Hong
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Patent number: 5502111Abstract: Heat distortion temperature of polyvinyl chloride compositions can be significantly increased above the heat distortion temperature of uncompounded polyvinyl chloride while good appearance of extruded material is preserved by preblending an imidized acrylic resin having a glass transition temperature above 130.degree. C. with a third polymer melt-processable throughout the temperature range of 150.degree.-300.degree. C. under conditions where a two-phase blend is formed, wherein the third polymer forms the continuous phase and the imidized acrylic resin forms the dispersed phase and then melt-blending the two-phase blend with polyvinyl chloride at a temperature of 150.degree.-220.degree. C. to form a composition in which the imidized acrylic resin forms a substantially homogeneous blend with polyvinyl chloride.Type: GrantFiled: April 12, 1994Date of Patent: March 26, 1996Assignee: E. I. Du Pont de Nemours and CompanyInventor: Gia Huynh-Ba
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Patent number: 5486561Abstract: There is disclosed a polypropylene resin composition which comprises (a) polypropylene; (b) ethylene/.alpha.-olefin copolymer elastomer having a specific range of Mooney viscosity; (c) modified polyolefin having a specific functioal group at either or both end thereof; and (d) specific compound such as stearic acid monoglyceride, stearyl diethanolamine, N-diethanol stearylamide and N-diethanol dodecanaeamide. The above composition is excellent in elasticity, peeling strength and recoating properties, can be painted immediately after degreasing without pretreatment with trichloroethane, etc. and is well suited for polypropylene bumper materials to be painted, etc.Type: GrantFiled: April 21, 1993Date of Patent: January 23, 1996Assignee: Idemitsu Petrochemical Co., Ltd.Inventors: Koki Hirano, Ryuichi Ohki, Yutaka Kobayashi
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Patent number: 5430073Abstract: The invention relates to a process for preparing a polymer in which in situ polymerization of monomers takes place in the presence of a catalyst, in which the monomers are obtained by in situ activation of precursor monomers.According to the invention a premature polymerization is avoided, but polymerization only starts at the desired moment.Type: GrantFiled: July 15, 1993Date of Patent: July 4, 1995Assignee: DSM, N.V.Inventors: Hans K. Van Dijk, Ronald M. A. M. Schellekens, Markus J. H. Bulters, Olav M. Aagaard, Gerard P. De Vries, Matthias J. G. Brouns
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Patent number: 5387631Abstract: Rubber compositions for use in pneumatic tire treads. Specified amounts of NR and/or IR and SBR are combined with a selected class of rubber components of the formula ##STR1## SBR contains in its molecular chains one or more atomic groups of the formula ##STR2## Rebound resilience, skid resistance and fuel saving are greatly improved.Type: GrantFiled: May 19, 1993Date of Patent: February 7, 1995Assignee: The Yokohama Rubber Co., Ltd.Inventors: Kinya Kawakami, Atsushi Kanazawa