At Least One Monomer Containing Two Or More Ethylenic Groups Patents (Class 525/328.3)
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Patent number: 10036126Abstract: Methods and apparatus for vacuum forming a beverage lid using a fiber-based slurry. The slurry comprises a moisture barrier component in the range of 0.5%-10% by weight, a rigidity component in the range of 1%-4% by weight, and a polycationic component in the range of about 1%-4%.Type: GrantFiled: July 26, 2016Date of Patent: July 31, 2018Assignee: Footprint International, LLCInventors: Yoke Dou Chung, Brandon Michael Moore, Yiyun Zhang
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Patent number: 9856608Abstract: Methods and apparatus for manufacturing vacuum forming a produce container using a fiber-based slurry. The slurry includes a moisture barrier comprising alkylketene dimer in the range of about 4% by weight, and a cationic liquid starch component in the range of 1%-7% by weight.Type: GrantFiled: November 3, 2016Date of Patent: January 2, 2018Assignee: Footprint International, LLCInventors: Yoke Dou Chung, Brandon Michael Moore, Yiyun Zhang
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Publication number: 20150118429Abstract: The present invention relates to diene polymers or diene copolymers, wherein she diene polymers or diene copolymers have, at the start of the polymer chains, tertiary amino groups of the formula (Ia), (Ib), (IIa) or (IIb) where R1, R2 are the same or different and are each alkyl, cycloalkyl, aryl, alkaryl and aralkyl radicals which may contain heteroatoms such as O, M, S and/or Si, Z is a divalent organic radical which, as well as C and H, may contain heleroatoms such as O, N, S and/or Si, and, at the end of the polymer chains, silane-containing carbinol groups of the formula (III) or metal salts thereof or semimetal salts thereof, where R3, R4, R5, R6 are the same or different and are each an H or alkyl, cycloalkyl, aryl, alkaryl and aralkyl radicals which may contain heteroatoms such as O, N, S and/or Si, A is a divalent organic radical which, as well as C and H, may contain heteroatoms such as O, N, S and/or Si.Type: ApplicationFiled: April 29, 2013Publication date: April 30, 2015Inventors: Norbert Steinhauser, Thomas Gross, Fernanda Albino
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Patent number: 8927116Abstract: An organic material including a hydrophilic polymer and an organic moiety having a hydroxyl substituted C6-C14 aromatic functional group, the organic moiety binding to an end or a side of the hydrophilic polymer.Type: GrantFiled: June 2, 2009Date of Patent: January 6, 2015Assignees: Samsung Electronics Co., Ltd., Korea Advanced Institute of Science and TechnologyInventors: Jong-jin Park, Kwang-hee Lee, Xavier Bulliard, Yun-hyuk Choi, Tae-gwan Park
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Publication number: 20140322319Abstract: The present invention relates to crosslinked polyamine particles and/or pharmaceutical compositions comprising, at least in part, crosslinked polyamine particles and aggregates of such particles (including cured aggregates of crosslinked polyamine particles). The compositions may be in the form of tablets comprising, for example, particles larger than 500 ?m particles and used for treating patients, for example, patients with hyperphosphatemia.Type: ApplicationFiled: April 17, 2014Publication date: October 30, 2014Applicant: GENZYME CORPORATIONInventors: Stephen Randall Holmes-Farley, David J. HARRIS, Steven C. POLOMOSCANIK, Adnan SALAMEH, Bruce SHUTTS, Richard SILVA, Pradeep K. DHAL, Lynne SOLE
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Patent number: 8846816Abstract: The invention relates to a process and an apparatus for the preparation of a crosslinkable rubber mixture for vehicle tires, lines, drive belts and other industrial rubber articles, which can be carried out at least semicontinuously. The present invention is based on the discovery that the experiments known from the prior art to carry out the batchwise process usually used at least partly continuously have failed in particular because of the problem that the crosslinking agents have to be mixed rapidly and homogeneously with the base mixture, also referred to as rubber base mixture, without the mixture consisting of the base mixture and the crosslinking agents heating up too strongly. According to the invention, attention was therefore focussed on reliably mixing the base mixture homogeneously with the crosslinking agents and minimizing the mixing time. A first measure for achieving the desired aim consists in first mixing the crosslinking agents with one another before they are mixed with the base mixture.Type: GrantFiled: June 26, 2009Date of Patent: September 30, 2014Assignee: Rhein Chemie Rheinau GmbHInventors: Anno Borkowsky, Andreas Schröder, Hans-Martin Issel, Florian Fischer, Reinhard Uphus
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Publication number: 20140179854Abstract: The invention relates to a polymer derived from: reaction of glycidyl (meth)acrylate, allyl glycidyl ether or [(vinyloxy)methyl]oxirane with ammonia or primary amine to obtain a mixture of monomer compounds; reaction of the mixture of monomer compounds with at least one of acrylic acid, vinyl alcohol, vinyl acetate, acrylamide, methylacrylic acid, and methylacrylamide to obtain an intermediate polymer; and reaction of the intermediate polymer with a dithiocarbamic acid salt. Methods for using the polymer are also described herein.Type: ApplicationFiled: July 6, 2012Publication date: June 26, 2014Applicant: GENERAL ELECTRIC COMPANYInventors: Yangang Liang, Wenqing Peng, Xiaoan Xie, Shengxia Liu, Hongchen Dong, Ping Lue, Stephen Robert Vasconcellos, Edward Joseph Urankar, Larry Neil Lewis, Robert James Perry
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Publication number: 20140058069Abstract: The present invention generally relates to particles, including microgel particles, for purifying proteins and other species. In one aspect, the particles comprise a metal-chelating moiety, which may be distributed substantially evenly throughout the particle in certain embodiments. In some cases, the particles may be porous, and in some embodiments, the particles may be made sufficiently small, for example, in order to form a microgel containing the particles. Such particles may be useful, for example, in binding metal ions (for example, nickel ions) using the metal-chelating moieties. In some embodiments, such particles may also be used to bind certain analytes (for example, proteins) containing tags which attract metal ions, for example, histidine tags. Accordingly, in certain embodiments, the particles may be used for binding or trapping proteins.Type: ApplicationFiled: February 22, 2012Publication date: February 27, 2014Applicants: MASSACHUSETTS INSTITUTE OF TECHNOLOGY, CHILDREN'S MEDICAL CENTER CORPORATIONInventors: Boaz Mizrahi, Daniel S. Kohane
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Crosslinker, crosslinked polymer material, and production method of the crosslinked polymer material
Patent number: 8530585Abstract: The present invention provides a crosslinker used for crosslinking a polymer material having, in the molecule thereof, a multiple bond reactable with a nitrile oxide, the crosslinker including a bifunctional nitrile oxide having an aromatic nitrile oxide derivative structure in which one hydrogen atom of an aromatic ring is substituted with a nitrile oxide group and all hydrogen atoms at an ortho-position of the nitrile oxide group are substituted with a substituent other than a nitrile oxide group, wherein two such aromatic nitrile oxide derivative structures are bonded to either two oxy groups of a di-oxy structure having the two oxy groups or two carbonyl groups of a di-carbonyl structure having the two carbonyl groups.Type: GrantFiled: February 18, 2011Date of Patent: September 10, 2013Assignees: Toyoda Gosei Co., Ltd., Tokyo Institute of TechnologyInventors: Akishige Seo, Hideyuki Imai, Naoki Iwase, Toshikazu Takata, Yasuhito Koyama, Morio Yonekawa -
Publication number: 20130171066Abstract: The present invention relates to the preparation and use of polymer complements to ?-amyloid peptides (A?) for detecting soluble or aggregated A? in fluid samples or for treating a subject having a neurodegenerative disease.Type: ApplicationFiled: July 25, 2011Publication date: July 4, 2013Inventors: Boerje Sellergren, Carla Sofia Antunes Aureliano, Javier Urraca Ruiz, Eric Schillinger
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Publication number: 20130146466Abstract: Disclosed herein are functionalized polymers comprising ethylene and substituted ethylene segments, which have been crosslinked using a multifunctional thiol to enhance their crosslinking ability. These functionalized polymers are useful as film forming resins in cathodic electrocoating compositions. Also disclosed herein are aqueous dispersion compositions comprising the functionalized polymers and a process for coating various electrically conductive substrates.Type: ApplicationFiled: December 12, 2011Publication date: June 13, 2013Applicant: E. I. DU PONT DE NEMOURS AND COMPANYInventors: Simona Percec, Susan H. Tilford
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Patent number: 8404767Abstract: A nitrile group-containing highly saturated copolymer rubber having an iodine value of 80 or less and containing a caprate in 0.01 to 0.4 wt %. Preferably, the caprate is an alkaline earth metal caprate or Group XIII metal caprate. According to present invention, it is possible to provide a nitrile group-containing highly saturated copolymer rubber improved in mold fouling resistance while maintaining good normal state physical properties and heat resistance when being made into a cross-linked product.Type: GrantFiled: December 26, 2008Date of Patent: March 26, 2013Assignee: Zeon CorporationInventors: Daizo Hosotani, Hiroyasu Nagamori, Shinya Ikeda
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Patent number: 8247500Abstract: A polymeric resin comprising guanidine groups having at least one C4-C22 tertiary alkyl substituent.Type: GrantFiled: February 3, 2009Date of Patent: August 21, 2012Assignee: Rohm and Haas CompanyInventors: Rajiv Manohar Banavali, Alfred Karl Schultz
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Patent number: 8148473Abstract: Disclosed is a sulfur-containing conjugated diolefin copolymer rubber composed of a conjugated diolefin and an aromatic vinyl compound, wherein (1) the content of sulfur bound to the rubber is 0.01 mmol % or more, (2) the content of the aromatic vinyl compound polymerization unit is not less than 5 wt % and less than 45 wt % relative to the amount of the copolymer rubber, and (3) the content of a vinyl bond (a 1,2-bond) in the conjugated diolefin polymerization unit is 30 mol % or more relative to the amount of the conjugated diolefin polymerization unit. In the copolymerization between the conjugated diolefin and the aromatic vinyl compound, a sulfur-containing polymerization terminator is used to terminate the reaction of the copolymerization.Type: GrantFiled: June 11, 2008Date of Patent: April 3, 2012Assignee: The Yokohama Rubber Co., Ltd.Inventors: Yoshihiro Kameda, Makoto Ashiura
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CROSSLINKER, CROSSLINKED POLYMER MATERIAL, AND PRODUCTION METHOD OF THE CROSSLINKED POLYMER MATERIAL
Publication number: 20110224380Abstract: The present invention provides a crosslinker used for crosslinking a polymer material having, in the molecule thereof, a multiple bond reactable with a nitrile oxide, the crosslinker including a bifunctional nitrile oxide having an aromatic nitrile oxide derivative structure in which one hydrogen atom of an aromatic ring is substituted with a nitrile oxide group and all hydrogen atoms at an ortho-position of the nitrile oxide group are substituted with a substituent other than a nitrile oxide group, wherein two such aromatic nitrile oxide derivative structures are bonded to either two oxy groups of a di-oxy structure having the two oxy groups or two carbonyl groups of a di-carbonyl structure having the two carbonyl groups.Type: ApplicationFiled: February 18, 2011Publication date: September 15, 2011Applicants: TOYODA GOSEI CO., LTD., TOKYO INSTITUTE OF TECHNOLOGYInventors: Akishige SEO, Hideyuki IMAI, Naoki IWASE, Toshikazu TAKATA, Yasuhito KOYAMA, Morio YONEKAWA -
Patent number: 7964669Abstract: A thermosetting resin comprising a reacted A) first partially crosslinked glyoxalated polymer comprising a reacted (i) first polyacrylamide backbone and (ii) a first glyoxal component; and B) a second crosslinked glyoxalated polymer comprising a reacted (i) second polyacrylamide backbone and (ii) a second glyoxyal component; such that the first polyacrylamide backbone has a molecular weight that is less than the molecular weight of the second polyacrylamide backbone; and the first polyacrylamide backbone and the second polyacrylamide backbone have a weight ratio ranging from 75:25 to 95:5. Methods for making and using the resin. Fibrous substrates made with the resin.Type: GrantFiled: April 2, 2010Date of Patent: June 21, 2011Assignee: Kemira OyjInventors: Robert Joseph Proverb, Lucyna M. Pawlowska
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Publication number: 20110105692Abstract: A nitrile group-containing highly saturated copolymer rubber having ?,?-ethylenically unsaturated nitrile monomer units (a) and conjugated diene monomer units (b) and having at least part of said conjugated diene monomer units (b) hydrogenated, wherein a content of said ?,?-ethylenically unsaturated nitrile monomer units (a) is 37 to 45 wt %, a total of said ?,?-ethylenically unsaturated nitrile monomer units (a) and said conjugated diene monomer units (b) is 93 wt % or more, an iodine value is 9 or less, and a half value width of a peak of a loss tangent (tan?) in the viscoelastic properties when made into a cross-linked product is 5 to 20° C. in range.Type: ApplicationFiled: June 26, 2009Publication date: May 5, 2011Inventors: Tsutomu Yoshimura, Kiyonori Umetsu, Shinya Ikeda
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Patent number: 7902301Abstract: Compositions suitable for use as encapsulants are described. The inventive compositions include a high molecular weight polymeric material, a curing agent, an inorganic compound, and a coupling agent. Optional elements include adhesion promoting agents, colorants, antioxidants, and UV absorbers. The compositions have desirable diffusivity properties, making them suitable for use in devices in which a substantial blocking of moisture ingress is desired, such as photovoltaic (PV) modules.Type: GrantFiled: June 2, 2008Date of Patent: March 8, 2011Assignees: BRP Manufacturing Company, Alliance For Sustainable Energy, LLCInventors: Michael D Kempe, Prem Thapa
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Patent number: 7863388Abstract: Water-soluble functionalized cationic copolymers obtainable by a process which comprises reacting a cationic base polymer which contains amino groups with at least one functional compound reactive to at least a part of the amino groups on the base polymer, are useful in personal care and cosmetic formulations.Type: GrantFiled: November 9, 2006Date of Patent: January 4, 2011Assignee: BASF SEInventors: Zhiqiang Song, John Jennings, Jianwen Mao
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Patent number: 7795355Abstract: The process of the present invention is directed toward conducting highly selective, high yield post polymerization reactions on polymers to prepare functionalized polymers. An embodiment of the present invention comprises conducting click chemistry reactions on polymers. Preferably, the polymers were prepared by controlled polymerization processes. Therefore, embodiments of the present invention comprise processes for the preparation of polymers comprising conducting a click chemistry reaction on a functional group attached to a polymer, wherein the polymer has a molecular weight distribution of less than 2.0. The functional polymers may be prepared by converting an attached functional unit on the polymer thereby providing site specific functional materials, site specific functional materials comprising additional functionality, or chain extended functional materials.Type: GrantFiled: March 7, 2005Date of Patent: September 14, 2010Assignee: Carnegie Mellon UniversityInventors: Krzyszlof Matyjaszewski, Brent S. Sumerlin, Nicolay V. Tsarevsky, James Spanswick
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Publication number: 20100117522Abstract: An organic material including a hydrophilic polymer and an organic moiety having a hydroxyl substituted C6-C14 aromatic functional group, the organic moiety binding to an end or a side of the hydrophilic polymer.Type: ApplicationFiled: June 2, 2009Publication date: May 13, 2010Applicants: SAMSUNG ELECTRONICS CO., LTD., KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Jong-jin PARK, Kwang-hee LEE, Xavier BULLIARD, Yun-hyuk CHOI, Tae-gwan PARK
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Publication number: 20100093944Abstract: Novel catalyst systems for metathesis reactions, in particular for the metathesis of nitrile rubber, which contain a specific addition of boric acid compounds.Type: ApplicationFiled: July 2, 2009Publication date: April 15, 2010Applicant: LANXESS DEUTSCHLAND GMBHInventors: Julia Marie Müller, Oskar Nuyken, Werner Obrecht
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Patent number: 7659354Abstract: The present invention is directed to polymeric compounds comprising a main backbone derived from at least the following monomeric components: (I) 20 to 99.9% by weight, preferably 50% to 99% by weight, of at least one cationic monomer according to formula (I), and (II) 0.1 to 80% by weight of a hydrophobic unsaturated nonionic monomer that polymerizes in the presence of an initiator, optionally a water-soluble monomer (III) different from either monomer (I) and monomer (II), and optionally a crosslinking agent (IV). Said compounds are particularly useful to overcome the problem of dye bleeding and/or dye transfer in laundry processes.Type: GrantFiled: December 15, 2003Date of Patent: February 9, 2010Assignee: Ciba Specialty Chemiclas CorporationInventors: Zhiqiang Song, Jianwen Mao, Hauke Rohwer, Ullrich Menge
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Patent number: 7655725Abstract: This invention relates to a process for the preparation of a hydrogenated polymer comprising the steps of hydrogenation of at least one carbon-carbon double bond of an unsaturated polymer in latex in the presence of hydrazine, an oxidizing compound and a catalyst, followed by separation of the hydrogenated polymer from the latex. After the separation of the hydrogenerated polymer from the latex a mixing step is carried out in which the hydrogenated polymer is first mixed with an amine group containing compound and next the hydrogenated polymer is mixed with a compound that is capable of reacting with an amine. The invention also relates to the hydrogenated polymer. The invention further relates to the use of this polymer in a compounds to make an article by shaping and vulcanisation.Type: GrantFiled: July 9, 2003Date of Patent: February 2, 2010Assignee: Zeon CorporationInventors: Johannes Wilhelmus Belt, Marco Marcus Matheus Driessen, Gerhard Vliet Van
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Patent number: 7608665Abstract: A thermosetting resin comprising a reacted A) first partially crosslinked glyoxalated polymer comprising a reacted (i) first polyacrylamide backbone and (ii) a first glyoxal component; and B) a second crosslinked glyoxalated polymer comprising a reacted (i) second polyacrylamide backbone and (ii) a second glyoxyal component; such that the first polyacrylamide backbone has a molecular weight that is less than the molecular weight of the second polyacrylamide backbone; and the first polyacrylamide backbone and the second polyacrylamide backbone have a weight ratio ranging from 75:25 to 95:5. Methods for making and using the resin. Fibrous substrates made with the resin.Type: GrantFiled: September 30, 2005Date of Patent: October 27, 2009Assignee: Lanxess CorporationInventors: Robert Joseph Proverb, Lucyna M. Pawlowska
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Patent number: 7511102Abstract: A liquid sealing agent used for automobile parts, electric parts, various kinds of machine parts and the like exhibits good oil resistance, heat resistance, adhesiveness and flexibility. A vinyl polymer has at least one crosslinkable silyl group and can yield a cured product exhibiting an oil resistance superior to that of a cured product from a reference polymer obtained by replacing the repeating unit thereof with butyl acrylate alone, in any one item of the immersion test according to JIS K 6258 for the land use 3-5 lubricating oil specified in JIS K 2215.Type: GrantFiled: January 25, 2007Date of Patent: March 31, 2009Assignee: Kaneka CorporationInventors: Nobuhiro Hasegawa, Yoshiki Nakagawa
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Patent number: 7488403Abstract: Compositions comprising a blend of two or more paper strengthening agents have improved stability compared with previously known paper strengthening agents. One component is a polymeric paper strengthening agent, preferably a wet strengthening agent. The other component is a stabilized glyoxalated polyacrylamide prepared by (1) reacting a first portion of glyoxal with a polyacrylamide having pendant amide groups to form a first reaction mixture comprising glyoxalated polyacrylamide; (2) adding an acid to the first reaction mixture to form a second reaction mixture having a reduced pH and comprising the glyoxalated polyacrylamide; and (3) adding a second portion of glyoxal to the second reaction mixture to form the stabilized glyoxalated polyacrylamide. If desired, an aldehyde scavenger can be included in one or more of step (1), step (2), step (3), or the stabilized glyoxalated polyacrylamide. Such compositions can be used to enhance the strength of paper, particularly the wet strength of paper.Type: GrantFiled: August 17, 2004Date of Patent: February 10, 2009Inventors: Cornel Hagiopol, Yuping Luo, David F. Townsend, James W. Johnston, Clay E. Ringold, Karla D. Favors
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Patent number: 7442746Abstract: The present invention is directed to a process for synthesizing an epoxidized polymer that includes the steps of: (1) preparing a cationically stabilized polymer latex containing at least one conjugated diolefin monomer in a first stage, (2) treating the polymer latex from step (1) with formic or acetic acid and hydrogen peroxide, and (3) allowing the mixture to react for a predetermined time and predetermined temperature to attain the desired level of epoxidation.Type: GrantFiled: October 19, 2006Date of Patent: October 28, 2008Assignee: The Goodyear Tire & Rubber CompanyInventor: Dane Kenton Parker
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Patent number: 7385010Abstract: The present invention relates to a process for the hydrogenation of the carbon-carbon double bonds in diene based polymer latex.Type: GrantFiled: March 9, 2006Date of Patent: June 10, 2008Assignee: LANXESS Inc.Inventors: Garry Llewellyn Rempel, Qinmin Pan, Jialong Wu
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Patent number: 7345115Abstract: A process is provided for the hydrogenation of carbon-carbon double bonds in polymers by treatment of the polymers with hydrogen in the presence of rhodium-based catalysts and in the complete absence of organic solvent.Type: GrantFiled: March 9, 2006Date of Patent: March 18, 2008Assignee: Lanxess Inc.Inventors: Garry Llewellyn Rempel, Qinmin Pan, Jialong Wu
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Patent number: 7186780Abstract: A liquid sealing agent used for automobile parts, electric parts, various kinds of machine parts and the like has encountered a problem that it is difficult to combine good oil resistance, heat resistance, adhesiveness and flexibility. The present invention provides a liquid gasket which improves these problems, and a material thereof. In the present invention, it is used a vinyl polymer which has at least one crosslinkable silyl group and can yield a cured product exhibiting an oil resistance superior to that of a cured product from a polymer obtained by replacing the repeating unit thereof with butyl acrylate alone, in any one item of the immersion test according to JIS K 6258 for the land use 3-5 lubricating oil specified in JIS K 2215.Type: GrantFiled: February 28, 2002Date of Patent: March 6, 2007Assignee: Kaneka CorporationInventors: Nobuhiro Hasegawa, Yoshiki Nakagawa
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Patent number: 7119148Abstract: A method for making a storage-stable glyoxalated polyacrylamide composition suitable for use as a strengthening agent for paper in which the glyoxal is added to the base polyacrylamide polymer in two portions and a scavenger for aldehyde groups is used.Type: GrantFiled: February 25, 2004Date of Patent: October 10, 2006Assignee: Georgia-Pacific Resins, Inc.Inventors: Cornel Hagiopol, Yuping Luo, David F. Townsend, Karla D. Favors, James W. Johnston, Clay E. Ringold, Lakeisha D. Saddler, Donald G. Jenkins
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Patent number: 7037997Abstract: A vinyl monomer of the structure R—B—Ar(—CH?CH2)n (1) in which Ar is an aromatic ring (arylene group); n is an integer >0, in particular one or two; B is a bridge structure; R is a (C2-30)-hydrocarbon group carrying two or more protected or unprotected hydroxy groups. The monomer is characterized in that B comprises a chain of atoms linking R to Ar and consisting of 1–10 atoms selected from carbons and the heteroatoms ether oxygen, thioether sulphur or amino nitrogen, with the proviso that the terminal atom in B which is attached to R is one of the heteroatoms. A method for producing a polymer support matrix in which the vinylmonomer is one of the monomeric units. The support matrix as such is also claimed. The preferred method for producing the support matrices involves suspension polymerisation, the preferred form of matrix is beads.Type: GrantFiled: June 6, 2000Date of Patent: May 2, 2006Assignee: GE Healthcare Bio-Sciences ABInventors: Rose Nasman, legal representative, Harry Nasman, legal representative, Jan Nasman, deceased
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Patent number: 7030193Abstract: The present invention relates to a polymer composite containing at least one carboxylated nitrile rubber polymer, that is optionally hydrogenated, at least one basic compound, at least one polyhalogenated hydrocarbon, optionally at least one filler and optionally at least one cross-linking agent, a process for preparing said polymer composite wherein at least one carboxylated nitrile rubber polymer, that is optionally hydrogenated, at least one basic compound, at least one polyhalogenated hydrocarbon, optionally at least one filler and optionally at least one cross-linking agent are mixed and a shaped article containing diester bridges formed by reaction of at least one carboxylated nitrile rubber polymer, that is optionally hydrogenated, at least one basic compound and at least one polyhalogenated hydrocarbon.Type: GrantFiled: June 22, 2004Date of Patent: April 18, 2006Assignee: Bayer Inc.Inventors: Frederic Guerin, Carl Walter Von Hellens, Sharon X. Guo
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Patent number: 6951905Abstract: A method of preparing an elastomeric polymer comprising the step of reacting a bisoxazolone with a primary or secondary di-amine terminated oligomer.Type: GrantFiled: January 16, 2001Date of Patent: October 4, 2005Assignee: Qinetiq LimitedInventors: Louise Dykes, Simon Lane
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Patent number: 6906133Abstract: The present invention relates to a process for making polyalkyldiallylamine-epihalohydrin resins, the resultant resins and their uses as wet strength additives for papermaking. These resins are obtained by a two step process, wherein the first step comprises the free radical polymerization or copolymerization of an alkyldiallylamine monomer in its protonated form; and the second step comprises reacting an ADAA polymer or copolymer with epihalohydrin under carefully controlled reaction conditions.Type: GrantFiled: January 3, 2003Date of Patent: June 14, 2005Assignee: Hercules IncorporatedInventors: Fang Deng, Daniel Yaodong Gan
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Patent number: 6884835Abstract: This invention relates to a process for making a vulcanized rubber article comprising the steps of (1) kneading at a temperature within the range of about 70° C. to about 190° C. in a bulk thermomechanical mixer (a) an amino group containing rubbery polymer, wherein said amino group containing rubbery polymer contains from about 0.1 weight percent to about 20 weight percent monomer units containing an amino group, (b) from 0.Type: GrantFiled: February 20, 2004Date of Patent: April 26, 2005Assignee: The Goodyear Tire & Rubber CompanyInventors: Manoj Ajbani, Wen-Liang Hsu, Adel Farhan Halasa, Ginger Lee, Eric Sean Castner
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Patent number: 6756451Abstract: Process for the hydrogenation of a polymer composed of conjugated diene monomer units and a nitrile group-containing monomer units, in which hydrogenation is carried out in the presence of hydrazine, and an oxidizing compound, with the hydrogenation being carried out in the presence of a antioxidant. It is preferred for NBR to be used as polymer.Type: GrantFiled: January 7, 2002Date of Patent: June 29, 2004Assignee: DSM IP Assets B.V.Inventors: Johannes W. Belt, Olav M. Aagaard
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Patent number: 6716929Abstract: Superabsorbent polymers having a slow rate of absorption, and a process for their preparation. The superabsorbent polymer has a slow rate of absorption, is crosslinked with a covalent crosslinking agent and the metal of a polyvalent metal coordination compound, has the metal of the coordination compound distributed essentially homogeneously throughout the polymer, and has an Absorption Rate Index of at least about 5 minutes.Type: GrantFiled: July 3, 2002Date of Patent: April 6, 2004Assignee: The Dow Chemical CompanyInventor: Larry R. Wilson
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Patent number: 6657014Abstract: A crosslinkable rubber composition comprising (a) 100 weight parts of a nitrile group-containing highly saturated copolymer rubber containing units of an ethlenically unsaturated dicarboxylic acid monoalkyl ester monomer, (b) 0.5 to 10 parts by weight of a polyamine crosslinking agent, and (c) 0.5 to 10 parts by weight of a basic crosslinking accelerator. This rubber composition gives a crosslinked nitrile group-containing highly saturated copolymer rubber article having excellent heat resistance, flex fatigue resistance and elongation, and reduced permanent set.Type: GrantFiled: February 20, 2002Date of Patent: December 2, 2003Assignee: Zeon CorporationInventors: Osamu Mori, Takafumi Kawanaka, Yoshiaki Aimura, Hiroyuki Kotsuji, Haruhiko Fujita
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Patent number: 6610787Abstract: The present invention relates to a thermoplastic resin composition comprising a rubber-reinforced thermoplastic resin as component (A) and an ethylene-&agr;-olefin copolymer having a Mooney viscosity (ML1+4, 100° C.) of 40 to 110 as component (B), the amount of component (B) being 1 to 70 parts by weight based on 100 parts by weight of component (A).Type: GrantFiled: June 13, 2002Date of Patent: August 26, 2003Assignee: Techno Polymer Co., Ltd.Inventors: Shinji Isoda, Narito Ishiga, Hironari Muraki, Yuuji Nakagawa
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Publication number: 20030144428Abstract: A polymer composition in solid form contains hydrogenated units of a polymer composed of diene monomer units and nitrile group containing monomer units. The hydrogenated polymer has an &agr;/&bgr; peak ratio >1, measured by 1H-NMR. The a peak is measured between 2.05 and 2.2 ppm. The &bgr; peak is measured between 1.8 and 2.05 ppm. The polymer composition has a gel content of less than 15 wt. % and a molecular weight distribution (of its soluble part) of less than 10. The polymer compositions may be used to form articles, such as automotive parts, which are less sensitive to oxidation degradation.Type: ApplicationFiled: March 5, 2003Publication date: July 31, 2003Applicant: DSM N.V.Inventors: Johannes W. Belt, Jacobus A.A. Vermeulen, Nikhil K. Singha, Olav M. Aagaard, Mike Kostermann
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Patent number: 6599988Abstract: The instant invention relates to poly(maleimide-co-alkenyl benzene) centipede polymer and a method for producing the polymer by reacting a poly(alkenyl benzene-co-maleic anhydride) in the presence of a primary amine in a substantially dry state. The invention is further directed to a process for blending the poly(maleimide-co-alkenyl benzene) centipede polymer with elastomeric polymers, in combination with, or in substitution of, conventional extender oils, to produce extended polymers having improved properties such as tensile strength, maximum elongation, tear strength, damping properties, and the like.Type: GrantFiled: April 29, 2002Date of Patent: July 29, 2003Assignee: Bridgestone CorporationInventors: Xiaorong Wang, Victor J. Foltz, Hideo Takeichi
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Patent number: 6579958Abstract: Superabsorbent polymers having a slow rate of absorption, and a process for their preparation. The superabsorbent polymer has a slow rate of absorption, is crosslinked with a covalent crosslinking agent and the metal of a polyvalent metal coordination compound, has the metal of the coordination compound distributed essentially homogeneously throughout the polymer, and has an Absorption Rate Index of at least about 5 minutes. Prepare water-swellable, water-insoluble polymer particles having a slow rate of water absorption by polymerizing a monomer in the presence of a covalent crosslinking agent and a polyvalent metal coordination compound under conditions such that there is formed a polymer having reversible cationic crosslinks and such that the metal is distributed essentially homogeneously throughout the polymer particles.Type: GrantFiled: December 7, 1999Date of Patent: June 17, 2003Assignee: The Dow Chemical CompanyInventor: Larry R. Wilson
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Patent number: 6552132Abstract: The invention relates to a process for the hydrogenation of a polymer composed of diene monomer units and nitrile group containing monomer units in which crosslinks formed as a result of the hydrogenation are broken by adding, before, during or after the hydrogenation, a compound that satisfies the formula R1—N(H)—X (I) or (R1)(R2)C═N—Y (II), where R1 is a hydrogen atom, an alkyl or cycloalkyl group with 1-30 carbon atoms, or an aromatic group with 6-30 carbon atoms and R2 is an alkyl or cycloalkyl group with 1-30 carbon atoms, or an aromatic group with 6-30 carbon atoms, X is chosen from the group comprising —R3, —OR4, —SR4, —NR5R6, where R3, R4 and R5 are a hydrogen atom, an alkyl or cycloalkyl group with 1-30 carbon atoms or an aromatic group with 6-30 carbon atoms and R6 is an alkyl or cycloalkyl group with 1-30 carbon atoms or an aromatic group with 6-30 carbon atoms Y is chosen from the group comprising —R7, —OR8, —SR8, —NR9R10 anType: GrantFiled: February 9, 2001Date of Patent: April 22, 2003Assignee: DSM N.V.Inventors: Johannes W. Belt, Jacobus A. A. Vermeulen, Nikhil K Singha, Olav M Aagaard, Mike Köstermann
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Patent number: 6548604Abstract: A nitrile group-containing highly saturated copolymer rubber comprising (a) 10-40 wt. % of &agr;,&bgr;-ethylenically unsaturated nitrile monomer units, (b) 10-60 wt. % of &agr;,&bgr;-ethylenically unsaturated carboxylic acid ester monomer units, (c) 0.01-21 wt. % of conjugated diene monomer units, and (d) 14-69.99 wt. % of saturated conjugated diene monomer units, wherein the sum of monomer units (c) plus (d) is 20-70 wt. %, the ratio of monomer units (d)/[monomer units (c) plus (d)] is at least 70 wt. %, and the difference between the extrapolated glass transition-initiating temperature (Tig) and the extrapolated glass transition-ending temperature (Teg), as measured by DSC is not higher than 10° C. The copolymer rubber gives a crosslinked product having good cold resistance, oil resistance and dynamic properties.Type: GrantFiled: April 15, 2002Date of Patent: April 15, 2003Assignee: Zeon CorporationInventors: Hiroyuki Kotsuji, Akira Tsukada
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Patent number: 6541573Abstract: A process for the elimination of formamide from polymers containing N-vinylformamide units involves treating formamide-containing polymers with from 1 to 2 mol-equivalents of an acid or a base, based on 1 mol-equivalent of formamide, under reaction conditions such that the N-vinylformamide units in the polymer undergo virtually no hydrolysis.Type: GrantFiled: February 7, 2001Date of Patent: April 1, 2003Assignee: BASF AktiengesellschaftInventors: Manfred Niessner, Martin Rübenacker, Norbert Mahr
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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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Publication number: 20020169252Abstract: Superabsorbent polymers having a slow rate of absorption, and a process for their preparation. The superabsorbent polymer has a slow rate of absorption, is crosslinked with a covalent crosslinking agent and the metal of a polyvalent metal coordination compound, has the metal of the coordination compound distributed essentially homogeneously throughout the polymer, and has an Absorption Rate Index of at least about 5 minutes. Prepare water-swellable, water-insoluble polymer particles having a slow rate of water absorption by polymerizing a monomer in the presence of a covalent crosslinking agent and a polyvalent metal coordination compound under conditions such that there is formed a polymer having reversible cationic crosslinks and such that the metal is distributed essentially homogeneously throughout the polymer particles.Type: ApplicationFiled: December 7, 1999Publication date: November 14, 2002Inventor: LARRY R. WILSON
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Patent number: RE38444Abstract: An absorbing agent has a diffusing absorbency under pressure of not less than 25 g/g when 60 minutes elapsed after absorption is started, and a water-soluble content is above 0 percent by weight and not more than 7 percent by weight. The absorbing agent is prepared by surface-crosslinking a precursor of the absorbing agent obtained by performing an aqueous solution polymerization of a hydrophilic unsaturated monomer having not less than 50 mole percent neutralized acrylic acid as a main component using a specific crosslinking agent having a main component composed of an ester compound of a specific polyhydroxy alcohol and an unsaturated carboxylic acid, and a high-boiling component having at least two alcohol structures in a molecule as a specific ratio.Type: GrantFiled: June 2, 2000Date of Patent: February 24, 2004Assignee: Nippon Shokubai Co., Ltd.Inventors: Katsuyuki Wada, Kinya Nagasuna, Shin-ichi Fujino, Yoshihiko Masuda