From Metal Containing Monomer Patents (Class 526/240)
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Patent number: 6458906Abstract: The present invention relates to water or alcohol soluble or dispersible thermoplastic elastomeric copolymers and to cosmetic and pharmaceutical compositions containing these copolymers. This invention especially relates to copolymers useful for hair styling purposes, and to hair styling compositions containing these copolymers. This invention further relates to copolymers useful for providing cosmetic and pharmaceutical compositions for topical application to the skin. These topical skin care compositions are useful for delivereing and/or transdermally transporting active ingredients to or thorugh the skin.Type: GrantFiled: March 21, 1995Date of Patent: October 1, 2002Assignee: The Procter & Gamble CompanyInventors: Peter Marte Torgerson, Sanjeev Midha
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Patent number: 6458907Abstract: Compositions comprising a polymer of organometallic polymerizable monomer acid or ester are useful as resists and are sensitive to imaging irradiation while exhibiting enhanced resistance to reactive ion etching.Type: GrantFiled: October 3, 2000Date of Patent: October 1, 2002Assignee: International Business Machines CorporationInventors: Marie Angelopoulos, Ari Aviram, C. Richard Guarnieri, Ranee W. Kwong
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Publication number: 20020123584Abstract: A low color or colorless polymaleate as determined by a Gardner color number of 8 or less, said polymaleate is prepared by aqueous solution polymerization of 70 to 99.9 weight percent of maleic acid, 0.1 to 30 weight percent of an allylic sulfonate monomer, and 0.5 to 50 &mgr;m, based on the moles of monomer, of a polyvalent transition metal ion selected from group consisting of Group IVA, VA, VIA, VIIA, VIIIA, IB, IIB, and combinations thereof, wherein the weight percents are based on the total weight of monomer, provided that 10 to 60 mole percent of the carboxylic acid groups on the maleic acid are neutralized prior to polymerization. The low color or colorless polymaleates provide permanent press properties to textiles treated therewith and increases the resistance of such textiles to laundering abrasion. The polymaleates also may be used in cleaning compositions to disperse and suspend soils.Type: ApplicationFiled: February 25, 2002Publication date: September 5, 2002Inventors: Anne-Marie Austin, Allen M. Carrier, Klein A. Rodrigues
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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: 6433114Abstract: Polyetherester monomers of a high quality are produced by causing an esterification reaction of polyalkyleneglycol with a closed end of a specified kind which has been refined so as to contain residual free acid by less than 0.03 weight %, as converted to acetic acid, and unsaturated carboxylic acid of another specified kind by using a specified amount of an acid catalyst under a heated and reduced-pressure condition in the absence of solvents and in the presence of p-benzoquinone and/or phenothiazine while distilling away generated water. Cement dispersants are produced by using water-soluble vinyl copolymers obtained by a radical copolymerization reaction between such polyetherester monomers and vinyl monomers.Type: GrantFiled: June 19, 2001Date of Patent: August 13, 2002Assignee: Takemoto Yushi Kabushiki KaishaInventors: Mitsuo Kinoshita, Tetsuaki Sugita
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Patent number: 6426397Abstract: Ionic perfluorovinyl compounds and their uses as components of ionic conductors of the polymer type, of selective membranes or of catalysts. The compounds comprise at least one perfluorovinyl group and at least one group chosen from —O or one of the groups C≡N, —C(C≡N)2, —NSO2R or —C[SO2R]2 or a pentacyclic group comprising at least one N, C—C≡N, CR, CCOR or CSO2R group. The compounds and/or their polymers are of use in the preparation of ionically conducting materials, electrolytes and selective membranes.Type: GrantFiled: July 5, 2001Date of Patent: July 30, 2002Assignees: ACEP Inc., Centre National de la Recherche Scientifique, Universite de MontrealInventors: Michel Armand, Christophe Michot
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Patent number: 6426396Abstract: Poly(cyclic conjugated diene) polymers are prepared by polymerizing a cyclic conjugated diene monomer or cyclic conjugated diene monomer and a double bond-containing monomer using a transition metal catalyst, preferably a Ni-based catalyst, in a non-polar solvent containing a basic compound or an aromatic halide solvent. The poly(cyclic conjugated diene) polymer may then be subsequently modified by reaction of at least one of the double bonds of the polymer with a modifying substance, for example hydrogen.Type: GrantFiled: May 6, 1999Date of Patent: July 30, 2002Assignee: Kabushiki Kaisha Toyota Chuo KenkyushoInventors: Mitsuru Nakano, Arimitsu Usuki, Qing Yao
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Publication number: 20020099115Abstract: The present invention provides a powdery dispersant for hydraulic compositions, which is excellent in pumping before drying and in pressure resistance and humidity resistance, which comprises one or more copolymers obtained by polymerizing a specific vinyl monomer (a) such as an ethylenically unsaturated carboxylic acid derivative having a polyoxyalkylene group with a specific vinyl monomer (b) such as (meth)acrylic acid etc., wherein the average number of C2-4 oxyalkylene groups or oxystyrene groups added is 45 to 150, (a)/[(a)+(b)]×100 ranges from 15 to 45 (mole-%), and at least a part of the copolymers are monovalent or polyvalent metal salts.Type: ApplicationFiled: November 28, 2001Publication date: July 25, 2002Inventors: Daisuke Shibai, Kyoichi Shirota
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Publication number: 20020086967Abstract: The present invention pertains to a method for forming poly-acrylic acid granules and granules formed therefrom wherein the granules are flowable, have an increased bulk density relative to the as polymerized polyacrylic acids, and a low amount of dust which is generally characterized herein as particles which pass through a 325 mesh screen. The granules formed by the method of the present invention can be used to prepare controlled release tablets, especially controlled release pharmaceutical tablets. The controlled release properties of the tablets formed from granules prepared according to the present invention are unexpectedly better than tablets prepared from granules formed by other known granulation methods.Type: ApplicationFiled: December 20, 2001Publication date: July 4, 2002Applicant: PMD Holdings Corp.Inventors: Daniel James Adams, David William Weaver
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Publication number: 20020061992Abstract: A polymer having a backbone repeat unit that includes at least two metal atoms bonded to each other and only one ethylenically unsaturated functional group wherein the backbone unit preferably has a structure ofType: ApplicationFiled: December 21, 2001Publication date: May 23, 2002Inventors: Kirk J. Abbey, Fernando J. Gomez, Kenneth B. Wagener
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Patent number: 6391992Abstract: Oligomers of vinyl esters, preferably of vinyl acetate, are provided in which the molecules contain a single terminal sulfonate group, thereby making these products useful as surface-active agents. These oligomers can be converted by hydrolysis to sulfonate-terminated vinyl alcohol oligomer which is also a surface-active agent. The number average molecular weight of the vinyl ester oligomer is not over 17,000 and not over 7,500 for the vinyl alcohol oligomer. These products are made by polymerizing the vinyl ester in the presence of a bisulfite chain transfer agent in water, preferably with a cosolvent such as methanol. The vinyl ester is delay fed to the polymerization, molecular weight is controlled with the bisulfite, and the system is maintained in a virtual single phase with any organic phase present swollen with water or water and cosolvent.Type: GrantFiled: September 18, 1998Date of Patent: May 21, 2002Assignee: Celanese International CorporationInventors: Robert Krantz Pinschmidt, Jr., Khalil Yacoub
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Patent number: 6384166Abstract: A low color or colorless polymaleate as determined by a Gardner color number of 8 or less, said polymaleate is prepared by aqueous solution polymerization of 70 to 99.9 weight percent of maleic acid, 0.1 to 30 weight percent of an allylic sulfonate monomer, and 0.5 to 50 &mgr;m, based on the moles of monomer, of a polyvalent transition metal ion selected from group consisting of Group IVA, VA, VIA, VIIA, VIIIA, IB, IIB, and combinations thereof, wherein the weight percents are based on the total weight of monomer, provided that 10 to 60 mole percent of the carboxylic acid groups on the maleic acid are neutralized prior to polymerization. The low color or colorless polymaleates provide permanent press properties to textiles treated therewith and increases the resistance of such textiles to laundering abrasion. The polymaleates also may be used in cleaning compositions to disperse and suspend soils.Type: GrantFiled: November 16, 2000Date of Patent: May 7, 2002Assignee: National Starch and Chemical Investment Holding CorporationInventors: Anne-Marie Austin, Allen M. Carrier, Klein A. Rodrigues
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Patent number: 6380278Abstract: A urethane (meth)acrylate metal salt obtained by reacting (A) one or more polyisocyanates, (B) one or more hydroxy functional (meth)acrylates, and (C) one or more metal salt polyols which are the reaction product of a metal oxide and a half ester containing a hydroxy group and a carboxylic acid group. Processes of preparing such salts and polymers prepared from such salts are also disclosed. The polymers are useful for coating and adhesive compositions prepared by radiation or peroxide curing processes.Type: GrantFiled: January 19, 2001Date of Patent: April 30, 2002Assignee: Sartomer Technology Co., Inc.Inventors: Mingxin Fan, Xiaoxing Chuck Dong, Jeffrey Allan Klang, James Horgan, Gary W. Ceska
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Patent number: 6380137Abstract: The invention provides water-soluble copolymers without crosslinking, consisting of the following components: A 5-95% by weight of bivalent structural units derived from acrylamidopropenylmethylenesulfonic acid or its salts, B 1-45% by weight of bivalent structural units derived from open-chain N-vinylamides, C 1-45% by weight of bivalent structural units derived from cyclic N-vinyl-substituted amides, and if desired D 0-50% by weight of a further comonomer selected from the group consisting of acrylamide, acrylic acid and acrylonitrile, the components A to C and, if present, D adding up to 100% by weight.Type: GrantFiled: March 2, 2000Date of Patent: April 30, 2002Assignee: Clariant GmbHInventors: Karl Heinz Heier, Roman Morschhäuser, Aranka Tardi, Susanne Weber, Gernold Botthof
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Publication number: 20020049147Abstract: The present invention provides: a novel water-soluble copolymer which is still more excellent in performance for uses, such as detergent builders, pigment dispersants, and scale inhibitors. In addition, the present invention provides: a novel liquid detergent builder which has extremely excellent compatibility, high transparency when a liquid detergent composition comprises it, and very excellent detergency; and a novel liquid detergent composition comprising the liquid detergent builder.Type: ApplicationFiled: August 16, 2001Publication date: April 25, 2002Inventors: Takuya Saeki, Junichi Nakamura, Yoshikazu Fujii, Masahito Takagi, Shigeru Yamaguchi
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Publication number: 20020045713Abstract: This invention deals with substantially fluorinated but not perfluorinated ionomers, and related ionic and nonionic monomers, having pendant groups containing fluorosulfonyl methide or fluorosulfonyl imide derivatives and univalent metal salts thereof, and with the uses of said ionomers in electrochemical applications such as batteries, fuel cells, electrolysis cells, ion exchange membranes, sensors, electrochromic windows, electrochemical capacitors, and modified electrodes.Type: ApplicationFiled: May 10, 2001Publication date: April 18, 2002Inventors: Andrew Edward Feiring, Christopher Marc Doyle, Mark Gerrit Roelofs, William Brown Farnham, Hanna Anna Katharina Blau, Paul Gregory Bekiarian
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Patent number: 6372930Abstract: Polymeric ligands, polymeric metallocenes, and processes for preparing same are provided. The process for preparing polymeric metallocenes comprises reacting a polymeric ligand, a transition metal compound, and an alkali metal compound. In one embodiment, a process for preparing polymeric ligands comprises reacting at least one bridged cyclopentadienyl-type monomer and an initiator under polymerization conditions. In another embodiment, a polymeric ligand is represented by the formula [Q′]n, wherein Q′ is a unit containing at least one bridged cyclopentadienyl-type group and wherein n is 1-5000.Type: GrantFiled: February 10, 2000Date of Patent: April 16, 2002Assignee: Phillips Petroleum CompanyInventors: Peter Schertl, Helmut G. Alt, M. Bruce Welch, Bernd Peifer, Syriac J. Palackal
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Patent number: 6359093Abstract: An amphipathic compound represented by any of the following Formulas: (R1 is a linear or branched, saturated hydrocarbon group having 6 to 48 carbon atoms, or a linear or branched, unsaturated hydrocarbon group containing 1 to 12 unsaturated double bond and having 6 to 48 carbon atoms; Y is NH, N—(CH2—CH═CH2), or O; Q is —CH2—C(R2)═CH2 or —R4—O—CO—C(R2)═CH2; and M is alkali metal, an ammonium group, or —(CH2CH2O)mH), a copolymer of the amphipatic compound with a copolymerizable ethylenically unsaturated compound and, a paper making additive containing a water soluble or dispersible high molecular compound as an active ingredient and processes for producing these high molecular compounds.Type: GrantFiled: February 16, 2000Date of Patent: March 19, 2002Assignee: Mitsui Chemicals, Inc.Inventors: Toshihiko Takaki, Masaru Tanabe, Shoko Oyanagi
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Patent number: 6353070Abstract: Star polymers obtainable by polymerization of vinylaromatic monomers with a branching monomer unit containing at least two vinylaromatic functional radicals in the presence of a catalyst obtainable from A) a transition-metal complex from sub-group II to VIII, B) a cation-forming agent and C), if desired, an aluminum compound.Type: GrantFiled: February 22, 1999Date of Patent: March 5, 2002Assignee: BASF AktiengesellschaftInventors: Josef Wünsch, Michael Geprägs
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Patent number: 6353148Abstract: The present invention is directed to a hydrogel-forming polymeric material including a first compound which is a superabsorbent polymer and a second compound present in the first as a dispersed phase including an elastomeric material effective to increase the fracture resistance of the superabsorbent. The material is prepared from a first compound including carboxylic-functional polyelectrolytes in combination with a crosslinkers reactive with carboxyl or carboxylate groups and an effective amount of a second compound including an aqueous dispersion of a rubbery material. In one preferred embodiment, the fracture resistant polymer is prepared from monomer/crosslinker solution mixed with latex.Type: GrantFiled: December 18, 1998Date of Patent: March 5, 2002Assignee: BKI Holding CorporationInventor: James R. Gross
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Publication number: 20020026021Abstract: Ionic perfluorovinyl compounds and their uses as components of ionic conductors of the polymer type, of selective membranes or of catalysts. The compounds comprise at least one perfluorovinyl group and at least one group chosen from —O or one of the groups C≡N, —C(C≡N)2, —NSO2R or —C[SO2R]2 or a pentacyclic group comprising at least one N, C—C≡N, CR, CCOR or CSO2R group. The compounds and/or their polymers are of use in the preparation of ionically conducting materials, electrolytes and selective membranes.Type: ApplicationFiled: July 5, 2001Publication date: February 28, 2002Inventors: Michel Armand, Christophe Michot
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Patent number: 6340731Abstract: A polymer having a backbone repeat unit that includes at least two metal atoms bonded to each other and only one ethylenically unsaturated functional group wherein the backbone unit preferably has a structure of —C(R3)═C(R3)—[C(R3)(R4)]n—[M(R1)(R2)]a—[C(R3)(R4)]p— wherein n is 0 to 4; a is at least 2; p is 0 to 4; R1 and R2 are each independently selected from hydrogen, halogen, lower alkyl having 4 or fewer carbon atoms, alkenyl having 4 or fewer carbon atoms, or aromatic having one ring; R3 and R4 are each independently selected from hydrogen and lower alkyl having 1 to 4 carbon atoms; and M is a metal atom selected from at least one of Sn, Ge, Pb, Hg, Ni, Pd, Pt, Cr, Fe, Co, Cu and Zn. The polymer has at least 20 weight percent metal, preferably at least 50 weight percent metal, based on the weight of the polymer.Type: GrantFiled: April 23, 1999Date of Patent: January 22, 2002Assignee: Lord CorporationInventors: Kirk J. Abbey, Fernando J. Gomez, Kenneth B. Wagener
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Publication number: 20020007028Abstract: A bioadhesive composition is disclosed which includes copolymer particles containing as polymerized units, terminally unsaturated acid-containing oligomers and ethylenically unsaturated nonionic monomers. A method of preparing the bioadhesive composition and a method of using the bioadhesive composition are also disclosed.Type: ApplicationFiled: February 5, 2001Publication date: January 17, 2002Inventors: Hsing-Yeh Parker, Allan Sachs Hoffman
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Publication number: 20010053804Abstract: A multipurpose cement dispersing, shrinkage compensating and anticorrosive polymer and an admixture comprising said polymer, which improve the workability and the early strength development of fresh concrete, are described.Type: ApplicationFiled: March 22, 2001Publication date: December 20, 2001Inventors: Jurg Widmer, Ueli Sulser, Ulf Velten, Irene Schober, Theodor A. Burge
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Patent number: 6316568Abstract: A water-soluble, crosslinkable protective colloid is provided having a weight-average molecular weight of least than 500,000 comprising: a) 20 to 95% by weight of monomer units containing sulphonic acid or sulphonate groups, b) 4 to 80% by weight of monomer units containing N-methylol or N-alkoxymethyl groups, and c) 0.1 to 20% by weight of hydrophobic monomer units such as water insoluble ethylenically unsaturated compounds and the hydrophobic end groups of initiator radicals or regulator molecules. Optionally, up to 50% by weight of the monomer units containing sulphonic acid or sulphonate groups can be replaced by monomer units containing carboxyl groups or monomer units containing amide groups.Type: GrantFiled: September 3, 1998Date of Patent: November 13, 2001Assignee: Wacker-Chemie GmbHInventors: Klaus Kohlammer, Gerhard Koegler, Monika Rockinger, Walter Dobler
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Patent number: 6310157Abstract: Paper is made by a dual soluble polymer process in which a cellulosic suspension which usually contains alum or cationic coagulant is first flocculated with a high IV cationic synthetic polymer or cationic starch and, after shearing, the suspension is reflocculated by the addition of a branched anionic water soluble polymer having IV above 3 dl/g and tan delta at 0.005 Hz of at least 0.5. The process gives an improved combination of formation, retention and drainage.Type: GrantFiled: May 19, 1999Date of Patent: October 30, 2001Assignee: Ciba Specialty Chemicals Water Treatment LimitedInventors: Michael Heard, Gordon Chen, John Oliver Stockwell
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Patent number: 6303725Abstract: The present invention provides a cyclic dione polymer, which is a homopolymer or a copolymer of a cyclic dione monomer selected from those represented by formulae (I) and (II) wherein A and B may be the same or different and are independently selected from the group consisting of halogen, hydrogen, C3-20 cyclic or pericyclic alkyl, C1-20 linear and branched alkyl, C6-20 aryl, C7-20 arylalkyl, C7-20 alkylaryl, silyl, alkylsilyl, germyl, alkylgermyl, alkoxycarbonyl, acyl, and a heterocylic group; or, A and B are linked together to form a C3-20 saturated or unsaturated cyclic hydrocarbon group or a substituted or unsubstituted heterocyclic group; C is selected from the group consisting of oxygen, sulfur, —CH2—, and —SiH2—, wherein each R1 is independently selected from C1-20 alkyl and phenyl.Type: GrantFiled: September 29, 2000Date of Patent: October 16, 2001Assignees: Industrial Technology Research Institute, Everlight Chemical Industrial CorporationInventors: Sheng-Yueh Chang, Bang-Chein Ho, Jian-Hong Chen, Ting-Chun Liu, Tzu-Yu Lin
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Patent number: 6297335Abstract: The hydrogels are based on polymerized monomers or on graft polymers and each have a Pressure Absorbency Index <100 and a vertical absorption of not less than 12 g/g under a pressure of 1922.8 Pa.Type: GrantFiled: February 5, 1999Date of Patent: October 2, 2001Assignee: BASF AktiengesellschaftInventors: Rüdiger Funk, Norbert Herfert, Mariola Wanior, Patricia D. Brown, Fritz Engelhardt, Guy T. Woodrum
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Patent number: 6288187Abstract: The invention relates to ionic compounds in which the negative charge is highly delocalized. The compounds comprise at least one perfluorovinyl group and at least one group chosen from —O or one of the groups —NC≡N, —C(C≡N)2, —NSO2R or —C[SO2R]2 or a pentacyclic group comprising at least one N, C—C≡N, CR, CCOR or CSO2R group. The compounds and/or their polymers are of use in the preparation of ionically conducting materials, electrolytes and selective membranes.Type: GrantFiled: March 25, 1999Date of Patent: September 11, 2001Assignees: ACEP Inc., Centre National de la Recherche Scientifique, Université de MontréalInventor: Michel Armand
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Publication number: 20010018503Abstract: This invention is directed to water-soluble fluorescent polymers incorporating fluorescent moieties, to a method of monitoring the water-soluble fluorescent polymers in water and to a method of controlling the dosage of a water-soluble polymeric treating agent.Type: ApplicationFiled: March 30, 2001Publication date: August 30, 2001Inventors: Wesley L. Whipple, Peter E. Reed, William J. Ward
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Patent number: 6277932Abstract: Beads are made from water-soluble monomer or monomer blend by reverse phase bead polymerization by extruding aqueous monomer beads into or onto the top of an upflowing column of non-aqueous liquid and the beads polymerise as they float downwardly through the column during a period of at least ½ minute. The resultant beads can have a very narrow particle size distribution.Type: GrantFiled: August 12, 1999Date of Patent: August 21, 2001Assignee: Ciba Specialty Chemicals Water Treatments, Ltd.Inventors: Martin William Whitley, Gareth Ian Naylor, David Andrew Houlton, Jonathan Heath Veal, Robert David Burrows
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Patent number: 6277933Abstract: The present invention is an acrylic polymer particle which is consistently and substantially spherical in shape and which has a mean diameter that can be predetermined from about 30 microns in diameter to about 5 microns or less. Polyacrylonitrile is synthesized in an aqueous dispersion polymerization with a ionic monomer or “surfmer” to attain a narrow particle size distribution with a mean diameter as low as approximately 3±1.5 microns which is characteristic of an emulsion polymerization. The polymer comprises the ionic monomer and, optionally, a neutral comonomer. The mean particle size is dependent on the concentration of the ionic monomer present, the particular ionic monomer or monomers selected, and the counterion associated with the ionic monomers, the persulfate initiator, and the bisulfite activator. The counterions, often sodium ions, can be removed from the polymer particles by ion exchange with quaternary ammonium compounds.Type: GrantFiled: April 3, 1998Date of Patent: August 21, 2001Assignee: Solutia Inc.Inventor: Bruce E. Wade
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Patent number: 6268450Abstract: An acrylic fiber comprises an acrylic fiber polymer precursor having acrylonitrile in an amount from 90 to 98.0 wt. % of said fiber and a neutral vinyl monomer in an amount from greater than 0 to 7.0 wt. %, the fiber possessing hot-wet elongation less than 9.0% at 70° C.Type: GrantFiled: May 11, 1998Date of Patent: July 31, 2001Assignee: Solutia Inc.Inventor: Bruce E. Wade
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Patent number: 6258911Abstract: A polymer having groups located at the ends of the polymer chain which groups are derived from stable free radical compounds, wherein the polymer is of the formula: SFR—(R)—SFR wherein SFR represents a covalently bonded stable free radical group and R represents a thermoplastic resin.Type: GrantFiled: August 18, 1994Date of Patent: July 10, 2001Assignee: Xerox CorporationInventors: Michael K. Georges, Toyofumi Inoue, Gordon K. Hamer, Peter M. Kazmaier, Richard P. N. Veregin
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Patent number: 6242540Abstract: Particles of a copolymer of a vinyl arene and a copolymerizable compound containing a polar moiety and a vinyl moiety containing water may be prepared by forming a mixture of monomers and small amounts of water and polymerizing under agitation to 20 to 70% conversion and then suspending the mass in water and finishing the polymerization. The resulting polymer beads contain finely dispersed water which is useful as an environmentally acceptable blowing agent.Type: GrantFiled: December 30, 1998Date of Patent: June 5, 2001Assignee: Nova Chemicals (International) S.A.Inventors: Jeroen Joost Crevecoeur, Eric Wilhelmus Johannes Frederik Neijman, Laurentius Nicolaas Ida Hubertus Nelissen, Johannes Maria Zijderveld
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Publication number: 20010001797Abstract: A continuous process for making a comb-branched copolymer of an acrylic monomer and a polyether macromonomer is disclosed. The process is performed by continuously feeding a reaction zone with a monomer stream that contains an acrylic acid and a polyether macromonomer, and an initiator stream. The comb-branched copolymer made thereby performs better as water reducing agent in cement compared to that made by a batch process.Type: ApplicationFiled: January 16, 2001Publication date: May 24, 2001Applicant: ARCO Chemical Technology, L.P.Inventors: Bi Le-Khac, Wei Wang, Edward T. Shawl
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Patent number: 6228962Abstract: Cement dispersants which contain two specified kinds of water-soluble vinyl copolymers mixed at a specified ratio can produce cement compositions such as concrete with water/cement ratio of 20-40 weight % with a reduced slump loss and provide a high early strength.Type: GrantFiled: July 13, 2000Date of Patent: May 8, 2001Assignee: Takemoto Yushi Kabushiki KaishaInventors: Mitsuo Kinoshita, Kazuhisa Okada
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Patent number: 6218492Abstract: The invention relates to water-insoluble, bacteriophobic and optionally cell proliferation-inhibiting polymers obtainable by free-radical polymerization of (a) at least one monomer of the general formula R—(A)a, in which R is an aliphatically unsaturated organic radical with the valence a, A is a carboxyl group —COOH, sulfuric acid group —OSO2OH, sulfonic acid group —SO3H, phosphoric acid group —OPO(OH)2, phosphonic acid group —PO(OH)2, phosphorous acid group —OP(OH)2, a phenolic hydroxyl group or a salt of one of the groups, and a is 1, 2 or 3, with the proviso that, if the monomer of the formula I contains a carboxyl group —COOH or a carboxylate group, either this monomer contains at least one further radical A having a different one of the definitions specified for A, or at least one further monomer of the formula I is also used in which A has a different one of the definitions specified for A; and (b) at least one other aliphatically unsaturated monomer, wheType: GrantFiled: April 24, 1998Date of Patent: April 17, 2001Assignee: Huels AktiengesellschaftInventors: Frank Hill, Peter Ottersbach, Graciella Djavid, Marcel Jozefowicz, Veronique Migonney, Jean-Pierre Vairon
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Patent number: 6214958Abstract: A continuous process for making a comb-branched copolymer of an acrylic monomer and a polyether macromonomer is disclosed. The process is performed by continuously feeding a reaction zone with a monomer stream that contains an acrylic acid and a polyether macromonomer, and an initiator stream. The comb-branched copolymer made thereby performs better as water reducing agent in cement compared to that made by a batch process.Type: GrantFiled: July 21, 1999Date of Patent: April 10, 2001Assignee: Arco Chemical Technology, L.P.Inventors: Bi Le-Khac, Wei Wang, Edward T. Shawl
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Patent number: 6211317Abstract: Copolymers based on unsaturated dicarboxylic acid derivatives, oxyalkylene glycol alkenyl ethers, unsaturated dicarboximides and/or -amides and vinyl monomers are described, as also their use as additives for hydraulic binders, especially cement. The copolymers also have an excellent plasticizing effect—even if they are added in large quantities—when used in concrete mixtures with an extremely low water content, and they do not retard the setting process.Type: GrantFiled: July 30, 1998Date of Patent: April 3, 2001Assignee: SWK Bauchemie GmbHInventors: Gerhard Albrecht, Hubert Leitner, Josef Weichmann, Alfred Kern
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Patent number: 6207772Abstract: A method for producing a cross-linked polymer manifesting a high absorption capacity and having a small content of soluble component by a convenient and expeditious process with high productivity is provided. An absorbent resin such that disposable diapers and other products incorporating the absorbent resin manifest outstanding qualities and a method for the production of the absorbent resin are proposed.Type: GrantFiled: July 20, 2000Date of Patent: March 27, 2001Assignee: Nippon Shokubai Co., Ltd.Inventors: Takumi Hatsuda, Toru Yanase, Yasuhiro Fujita, Kazuki Kimura
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Patent number: 6187872Abstract: A hydrogel polymer obtained by polymerizing a monomer component including acrylic acid (salt) is post-neutralized so that each of polymer particles derived from a polymer produced by neutralizing the hydrogel polymer has an allowable neutralization ratio. The polymer as obtained by neutralizing the hydrogel polymer is reacted with a crosslinking agent reactive to a functional group of the polymer.Type: GrantFiled: April 6, 1998Date of Patent: February 13, 2001Assignee: Nippon Shokubai Co., Ltd.Inventors: Toru Yanase, Kazuki Kimura, Shin-ichi Fujino, Kinya Nagasuna, Kunihiko Ishizaki, Hirotama Fujimaru, Nobuyuki Harada
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Patent number: 6176921Abstract: A cement dispersant composed of water-soluble vinyl copolymers which include specified kinds of constituent units at specified ratios and of which the weight average molecular weight pullulan converted by GPC method is 15000-150000 and the ratio of weight average molecular weight to number average molecular weight is 2-7 is used together with cement, aggregates and water to produce concrete with the water-to-cement ratio of 20-45%.Type: GrantFiled: February 17, 1999Date of Patent: January 23, 2001Assignee: Takemoto Yushi Kabushiki KaishaInventors: Mitsuo Kinoshita, Kazuhisa Okada, Masahiro Iida
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Patent number: 6174978Abstract: The invention provides a production process of a water-absorbent resin, by which process the polymerization temperature can be controlled in static aqueous solution polymerization. The production process of a water-absorbent resin comprises the step of polymerizing statically an aqueous solution with a thickness of 10˜50 mm including a hydrophilic monomer, and is characterized in that the polymerization heat is removed using both cooling due to heat conduction transfer and cooling due to the latent heat of vaporization, thereby controlling the maximum attained temperature of the polymerization system in the range of 60˜95°C. or controlling the increase in solid content in the range of 0.2 to 10 weight %.Type: GrantFiled: November 20, 1998Date of Patent: January 16, 2001Assignee: Nippon Shokubai Co., Ltd.Inventors: Takumi Hatsuda, Takashi Namba, Yoshihiro Motono
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Patent number: 6136935Abstract: This invention discloses a composition and a method of using the composition to cement a borehole penetrating a subsurface earth formation. The composition, the random polymerization product of two or three different vinyl-containing monomers including a vinylamide morpholine derivative, operates to reduce fluid loss from the cement slurry used to cement the borehole to the subsurface formation.Type: GrantFiled: August 12, 1999Date of Patent: October 24, 2000Assignee: Fritz Industries, Inc.Inventors: Rebecca G. Udarbe, Kim Hancock-Grossi
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Patent number: 6133193Abstract: An absorbent resin composition which shows high speed of absorption, excels in fluid permeability, and enjoys a high absorption capacity under load comprises primary particles of an absorbent resin and granulated particles of an absorbent resin having an average particle size smaller than the average particle size of the primary particles. An absorbent article contains the composition. The absorbent resin composition is produced by a method which comprises a step of producing granulated particles by granulating particles of absorbent resin having an average particle size in the range of 10 to 100 .mu.m and a step of mixing the resultant granulated particles of the absorbent resin with the primary particles of an absorbent resin having an average particle size in the range of 150 to 800 .mu.m.Type: GrantFiled: July 23, 1997Date of Patent: October 17, 2000Assignee: Nippon Shokubai Co., Ltd.Inventors: Katsuhiro Kajikawa, Takumi Hatsuda, Masatoshi Nakamura
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Patent number: 6130303Abstract: Water-soluble, high molecular weight, polymeric, microparticles with a high degree of branching are disclosed. A microemulsion polymerization process for preparing the microparticles is also disclosed. The microparticles give excellent results in a number of solid-liquid separation processes.Type: GrantFiled: January 11, 1994Date of Patent: October 10, 2000Assignee: Cytec Technology Corp.Inventors: Roger Edgar Neff, Roderick Glyn Ryles
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Patent number: 6103839Abstract: A continuous free radical polymerization process for the preparation of water-soluble copolymers from water-soluble monomers for further processing to dry polymers is disclosed. The process allows efficient polymerization of the monomers in aqueous solution in the presence of a free radical catalyst through backmixing. Water-soluble polymers with molecular weights of from about 3,000-30,000,000 and preferably from about 500,000-10,000,000 are obtained utilizing this process.Type: GrantFiled: May 11, 1998Date of Patent: August 15, 2000Assignee: Nalco Chemical CompanyInventors: Mayur Patel, Cheng-Sung Huang, Robert W. Reese, Jr., Jeffrey R. Cramm, Paul J. Harris
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Patent number: 6090899Abstract: A high-flow concrete additive comprises a polymer of 10-100 wt % of an N-vinylacetamide, 0-50 wt % of a compound CH.sub.2 .dbd.CR.sup.3 X.sup.1 R.sup.4 SO.sub.3 X.sup.2 wherein R.sup.3 is hydrogen or methyl, R.sup.4 is alkylene of 1 to 4 carbon atoms, X.sup.1 is CONH or COO, and X.sup.2 is hydrogen, an alkali metal, ammonium salt or organic ammonium salt, and 0-40 wt % of a compound CH.sub.2 .dbd.CR.sup.5 X.sup.3 wherein R.sup.5 is hydrogen or methyl and X.sup.3 is CN, COOR.sup.6, CONH.sub.2, CONHR.sup.7, CONR.sup.8 R.sup.9, COR.sup.10, OCOR.sup.11 or OR.sup.12, in which R.sup.6 is hydrogen, an alkali metal, ammonium salt, organic ammonium salt or alkyl group of 1 to 4 carbon atoms, R.sup.7, R.sup.8 and R.sup.9 are alkyl groups of 1 to 4 carbon atoms, and R.sup.10, R.sup.11 and R.sup.12 are alkyl groups of 1 to 4 carbon atoms.Type: GrantFiled: August 7, 1996Date of Patent: July 18, 2000Assignee: Showa Denko K.K.Inventors: Takanori Futami, Tetsuhiko Yamaguchi, Hirotaka Tagoshi
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Patent number: 6087002Abstract: A process for producing water-absorbent resins having an average particle diameter of 100 to 600 .mu.m and a particle diameter distribution of 0.35 or less by polymerizing an aqueous solution of a water-soluble ethylenically unsaturated monomer, pulverizing and sieving the polymer so obtained, and crosslinking the surface of the polymer powder.Type: GrantFiled: October 29, 1997Date of Patent: July 11, 2000Assignee: Nippon Shokubai Kagaku Kogyo Co. Ltd.Inventors: Kazumasa Kimura, Kinya Nagasuna, Takashi Namba, Kenji Kadonaga, Koji Miyake, Tadao Shimomura