Solid Polymer Derived From A Monomer Containing An Atom Other Than C, O, H, Or Chlorine Patents (Class 524/521)
  • Patent number: 6488764
    Abstract: A cement composition comprising a polymeric latex prepared by aqueous emulsion polymerization of a monomeric mixture comprising styrene and butadiene in the presence of a seed polymer prepared by aqueous emulsion polymerization of styrene and a salt of 2-acrylamido-2-methylpropanesulfonic acid.
    Type: Grant
    Filed: September 11, 2001
    Date of Patent: December 3, 2002
    Assignee: OMNOVA Solutions Inc.
    Inventor: Ira John Westerman
  • Patent number: 6486259
    Abstract: An ebonite tape for coating metal substrates is made either of a single component mixture or a two-component mixture. A single component mixture includes unsaturated polymers, a sulfur vulcanization agent, a sulfur solubilizer, a vulcanization accelerator, and a vulcanization activator. Preferably, the sulfur solubilizer is polyamine, and the vulcanization accelerator is tetramethylthiuram disulfide. Reaction of polyamine and tetramethylthiuram disulfide causes a gelation in the mixture at ambient condition. A two-component mixture includes first and second components. First component includes first unsaturated polymers having first functional groups capable of reaction at ambient temperature, a sulfur vulcanization agent, and a vulcanization activator. Second component includes second unsaturated polymers having second functional groups that will react with first functional groups of the first unsaturated polymers at ambient condition, which causes a gelation in the mixture.
    Type: Grant
    Filed: November 28, 2000
    Date of Patent: November 26, 2002
    Assignee: 3L&T, Inc.
    Inventors: William L. Betts, III, Rong Jong Change
  • Patent number: 6482894
    Abstract: A liquid ebonite mixture for coating includes two reactive components. The first component contains first unsaturated polymers having first functional groups capable of reaction at ambient condition either with or without a catalyst, a vulcanization agent, and a vulcanization activator. The second component contains second unsaturated polymers having second functional groups that will react with the first functional groups at ambient temperature. The first and the second unsaturated polymers must contain sufficient unsaturated backbones to allow vulcanization with the vulcanization agent. In addition, the second unsaturated polymers must be thermodynamically compatible with the first unsaturated polymers so that macroscopic phase separation will not occur and the vulcanization can happen homogeneously through out the coating.
    Type: Grant
    Filed: November 28, 2000
    Date of Patent: November 19, 2002
    Assignee: 3L & T, Inc.
    Inventors: Rong Jong Chang, William L. Betts, III, Linas Mazeika
  • Publication number: 20020165307
    Abstract: Aqueous dispersions of cationic water-soluble polymers are provided, as well as processes for making and methods of using the same.
    Type: Application
    Filed: October 5, 1998
    Publication date: November 7, 2002
    Inventors: SUN-YI HUANG, LOUIS ROSATI, JOSEPH J. KOZAKIEWICZ
  • Patent number: 6476118
    Abstract: A method of separating a mixture of biopolymers of various lengths using a blend of two linear hydrophilic polymers, particularly polyacrylamides (LPA) or substituted polyacrylamides, one with high weight-average molecular mass and another with low weight-average molecular mass, each present at a low concentration but wherein the concentration of the high weight-average molecular mass LPA is above its entanglement threshold, is disclosed. The matrix is excellent for use in methods of nucleic acid analysis, particularly long read length DNA sequencing.
    Type: Grant
    Filed: February 18, 2000
    Date of Patent: November 5, 2002
    Assignee: Northeastern University
    Inventors: Barry L. Karger, Lev Kotler, Wolfgang Goetzinger, Haihong Zhou, Zoran Sosic, Oscar Salas-Solano
  • Patent number: 6472471
    Abstract: Various modified carbon products are disclosed which can form a part of a polymeric product containing the modified carbon product and a polymer. One type of modified carbon product disclosed is a carbon product having attached at least one organic group, monomeric group, or polymeric group. Another type of modified carbon product disclosed is a carbon product having attached a group having the formula: —Ar—CO2—R or —CnH2nCO2—R where R is an organic group, monomeric group, or a polymeric group.
    Type: Grant
    Filed: December 14, 1998
    Date of Patent: October 29, 2002
    Assignee: Cabot Corporation
    Inventors: Joel M. Cooke, Collin P. Galloway, Mark A. Bissell, Curtis E. Adams, Michael C. Yu, James A. Belmont, Robert M. Amici
  • Publication number: 20020151643
    Abstract: A thickened aqueous coating composition (preferably paints and the like or adhesives) containing a film-forming polymeric binder which produces dried coatings having less sensitivity to water by using a thickener which is autoxidisable. Preferred autoxidisable moieties are provided by derivatives of long chain fatty acids of the type used in alkyd paints and association is the preferred thickener mechanism. The moieties may form part of a compound which can take part in a copolymerisation to form a polymeric backbone for the thickener and if the compound is not very soluble in water, the copolymerisation mixture is subjected to intensive agitation to form droplets of less than 500 nm which compensates for the lack of solubility. The thickener may serve as its own binder if sufficient amounts are used.
    Type: Application
    Filed: July 19, 2001
    Publication date: October 17, 2002
    Applicant: Imperial Chemical Industries Plc.
    Inventors: Manish Sarkar, Stephane Patrick Belmudes
  • Publication number: 20020137837
    Abstract: Articles coated with a water-resistant coating that absorbs water to provide the water-resistant effect, and desorbs water when the coating is dried, and a method of providing water resistance and corrosion resistance to articles prepared with such coatings. The coating is formed by applying a composition comprising an aqueous solution of a superabsorbent water-soluble polymer precursor, optionally a viscosity modifying agent, and optionally a lubricant onto the surfaces of the article, and curing to form a coating comprising the superabsorbent polymer.
    Type: Application
    Filed: September 30, 1999
    Publication date: September 26, 2002
    Inventors: MARTIN C. FLAUTT, JAMES R. PRIEST, DAVID V. STOTLER, THOMAS P. HAGER
  • Publication number: 20020103283
    Abstract: A method of inhibiting the loss of solar reflectivity over time of an exterior elastomeric coating composition comprising an organic binder and at least one inorganic additive comprises: replacing at least a part of the at least one inorganic additive with a solid, particulate, organic polymer having a Tg greater than 70° C. An improved exterior elastomeric coating composition is also disclosed.
    Type: Application
    Filed: May 1, 2001
    Publication date: August 1, 2002
    Inventors: William Henry Elfring, Donald Alfred Winey
  • Patent number: 6419990
    Abstract: This invention relates to a phosphoric acid group-containing non-aqueous dispersion wherein polymer particles are dispersed in a solution of a macromolecular dispersion stabilizer dissolved in an organic solvent, said polymer particle being a particle of polymer comprising a phosphoric acid group-containing polymerizable unsaturated monomeric unit as a constituent component. With use of said phosphoric acid group-containing non-aqueous dispersion, there can be improved interlayer adhesivity between a metallic coating film, which is formed from a leafing type aluminum flake pigment, and another coating film adjacent thereto, without reducing the excellent effects such as dense metallic feeling of the coated surface, a chrome plating-like finish, and strong brightness feeling and strong flip-flop perperties, which are produced by such a metallic coating film.
    Type: Grant
    Filed: September 21, 1999
    Date of Patent: July 16, 2002
    Assignee: Kansai Paint Co., Ltd.
    Inventors: Yoshiyuki Yukawa, Yutaka Masuda, Akimasa Nakahata
  • Patent number: 6410638
    Abstract: A light-stable, sinterable particulate thermoplastic molding composition is described. The thermoplastic compositions of the present invention consist essentially of: (i) a resinous blend of, (a) thermoplastic polyurethane, and (b) a member selected from at least one of a number of recited copolymers, e.g., a styrene-acrylonitrile copolymer; (ii) a UV stabilizer; and (iii) an antioxidant. The thermoplastic polyurethane (a) is prepared from an aliphatic or cycloaliphatic diisocyanate. The molding compositions are suitable for the preparation of textured sintered films, e.g., by the powder-slush process, having improved tactile properties that, for example, may be used in the fabrication of vehicle interior trim components and vehicle air bags.
    Type: Grant
    Filed: April 26, 2000
    Date of Patent: June 25, 2002
    Assignees: Bayer Aktiengesellschaft, Benecke-Kaliko Aktiengesellschaft
    Inventors: Wolfgang Kaufhold, Hans-Georg Hoppe, Rainer Ohlinger, Jürgen Bühring
  • Patent number: 6407174
    Abstract: The present invention relates to a thermoplastic elastomer vulcanizate obtained from a thermoplastic propylene/ethylene/&agr;-olefin terpolymer, a rubber component and optional additives, by dynamic vulcanization of the rubber component with a non-peroxide curing system. The vulcanizate has both superior physical properties and excellent processability.
    Type: Grant
    Filed: May 23, 2000
    Date of Patent: June 18, 2002
    Assignee: Advanced Elastomer Systems, L.P.
    Inventor: Trazollah Ouhadi
  • Publication number: 20020068786
    Abstract: The invention relates to a method of producing mixtures of polyvinyl chloride and polymers based on conjugated dienes and acrylonitrile, by mixing powdered polyvinyl chloride with latexes based on conjugated dienes and acrylonitrile and then coagulating the mixture. The method according to the present invention represents an inexpensive and environmentally friendly method of producing the mentioned mixtures, the physical behavior of the resulting mixtures being no different to that of corresponding mixtures produced by the dry blend method or the latex blend method.
    Type: Application
    Filed: December 3, 2001
    Publication date: June 6, 2002
    Inventors: Rainer Graefe, Paul Krieger, Hans-Christian Strauch, Hans Magg, Dieter Lohr
  • Patent number: 6395800
    Abstract: The biocompatibility of various polymers are improved by blending with them a polymer including a zwitterionic group. The zwitterionic group is usually an ammonium phosphate ester zwitterionic group and the polymer containing it may be produced by the free radical polymerisation of ethylenically unsaturated monomers including a monomer bearing the zwitterionic group. Blending of the two polymers may be achieved by dry blending particulate polymers or by mixing the polymers in liquid dispersion or solution followed by removal of the liquid medium. The fibrinogen absorption and/or platelet activation of polymers may be reduced to a value of less than 80% or even less than 60% of the base polymer by introducing amounts of more than 10% or more than 30% of the zwitterionic group containing polymer. Preferred blends are of copolymers of 2-(methacryloyloxyethyl)-2′-(trimethylammonium)ethyl phosphate inner salt with higher alkyl(meth)acrylate, blended with olefin polymers and/or with rubber latices.
    Type: Grant
    Filed: April 14, 2000
    Date of Patent: May 28, 2002
    Assignee: Biocompatibles Limited
    Inventors: Stephen Alister Jones, Peter William Stratford, Steven Rimmer
  • Patent number: 6372842
    Abstract: The present invention relates to methods of using an aqueous composition or dispersion containing a water-soluble or water-dispersible synthetic polymer, and compositions formed thereof. The aqueous composition or dispersion is added to agricultural spray compositions, ink compositions, deicing or anti-icing compositions, latex paint and coating compositions, cleaner compositions, adhesives, fire-extinguishing chemical compositions, hydro-metallurgy/electro-winning compositions, compositions having organosilanes, personal care compositions, water-based hydraulic compositions, dust control compositions, and textile finish compositions, to impart properties including aerosol control, spatter control, shear stability, rheology control, transfer efficiency, oil/water reduction, sling control, emollient performance, film forming capability, surface activity, encapsulent ability, lubricity, thickening, and anti-wear capability, to the resultant composition formed thereof.
    Type: Grant
    Filed: June 14, 1999
    Date of Patent: April 16, 2002
    Assignee: The Lubrizol Corporation
    Inventors: Bryan A. Grisso, Robert E. Quinn, Sanjay N. Kalhan, Edward J. Konzman, Saurabh S. Lawate, James H. Bush, Joseph W. Pialet, Paul Walsh, Carlos A. Piedrahita, Philip R. Miller, Alan C. Clark, David L. Facchiano, Al E. Haas, Clifford Kowall, Richard A. Denis
  • Patent number: 6359040
    Abstract: Aqueous compositions having advantageous Theological properties, preferably including any of enhanced yield stress, enhanced viscosity, and/or enhanced water retention, are disclosed. Included are low-viscosity compositions having high yield stress. The present invention also relates to processes for preparing and using the compositions. Compositions of the present invention comprise aqueous compositions of a polymer having a net ionic charge, and a viscosity promoter having an opposite net ionic charge. Compositions may also comprise a moderating agent to prevent precipitation and/or gelation.
    Type: Grant
    Filed: May 11, 1999
    Date of Patent: March 19, 2002
    Assignee: Hercules Incorporated
    Inventor: Charles L. Burdick
  • Patent number: 6340725
    Abstract: A printing medium comprising a substrate having at least one surface and a coating on the surface wherein the coating comprises: (a) binder comprising: (1) organic polymer which is substantially free of ammonium groups, (2) first cationic addition polymer consisting essentially of quaternary ammonium-containing mer units derived from addition monomer and ammonium-free mer units derived from addition monomer, and (3) second cationic addition polymer consisting essentially of secondary, tertiary, or both secondary and tertiary ammonium-containing mer units derived from addition monomer and ammonium-free mer units derived from addition monomer, wherein the binder constitutes from 20 to 90 percent by weight of the coating; and (b) finely divided substantially water-insoluble filler particles which have a maximum dimension of less than 500 nanometers, are distributed throughout the binder, and constitute from 10 to 80 percent by weight of coating.
    Type: Grant
    Filed: October 11, 1999
    Date of Patent: January 22, 2002
    Assignee: Hewlett-Packard Company
    Inventors: Alan E. Wang, Louis J. Nehmsmann, Suk H. Cho, Robert H. Tang, William C. Allison
  • Patent number: 6339123
    Abstract: Heterophasic polyolefin alloys, with a semi-interpenetrating network structure and an outstanding combination of high stiffness, low temperature toughness and optionally a low coefficient of thermal expansion of propylene polymers and elastomers, are produced by melt compounding propylene polymers with a co-continuous blend, which contains 5 to 60% by weight of gel and was produced by reacting mixtures of propylene polymers and elastomeric polyolefins or styrene butadiene ethylene terpolymers with ethylenically unsaturated, hydrolyzable organosilane compounds in the presence of silanol condensation catalysts. Heterophasic polyolefin alloys are suitable for the production of films, sheets, fibers, panels, coatings, injection molded article, pipes, hollow objects and foams.
    Type: Grant
    Filed: June 30, 1999
    Date of Patent: January 15, 2002
    Assignee: Borealis GmbH
    Inventors: Manfred Raetzsch, Norbert Reichelt, Achim Hesse, Hans-Gerhard Fritz, Uwe B{haeck over (o)}lz
  • Publication number: 20010053813
    Abstract: The present invention provides a rubber composition which has satisfactory processability and dimension stability, exhibits excellent tensile strength and wearing resistance, and the like when vulcanized and is useful as a material for an industrial product such as a rubber roll, a grinding roll, a belt, a hose and a rubber-coated fabric, a shoe part for example of a transparent shoe, a tire of a large-sized or small sized car such as a tread and a side wall and a sanitary material such as a contraceptive rubber or the like. A rubber composition of the invention comprises (1) a crosslinked rubber particle containing as repeating units (a) 39.89 to 79.89% by weight of a conjugated diene unit such as 1,3-butadiene or the like, (b) 20 to 60% by weight of an aromatic vinyl unit such as styrene, (c) 0.01 to 10% by weight of a monomer unit having at least two polymerizable unsaturated group such as divinylbenzene, and the like, and (d) 0.
    Type: Application
    Filed: April 30, 2001
    Publication date: December 20, 2001
    Applicant: JSR Corporation
    Inventors: Tomohisa Konno, Toshihiro Tadaki, Yoshiyuki Udagawa, Hiroshi Akema
  • Publication number: 20010053812
    Abstract: There is disclosed a rubber composition comprising:
    Type: Application
    Filed: February 27, 2001
    Publication date: December 20, 2001
    Inventors: Rene Jean Zimmer, Wolfgang Lauer, Marc Weydert, Friedrich Visel, Uwe Ernst Frank
  • Patent number: 6312827
    Abstract: Described is a method for manufacture of a pre-impregnate, characterized in that a base paper is impregnated with an impregnation solution, which contains: a) a watery dispersion on basis of an acrylic acid ester/styrol-copolymer, b) a dry hardener on basis of a copolymerisate from (meth)acrylamide and (meth)acrylic acid, and c) water whereby per weight part of dry copolymerisate from (meth)acrylamide and (meth)acrylic acid, approximately 0.3 to 13 parts by weight of dry acrylic acid ester/styrol-copolymer are employed. The pre-impregnate obtained with the method serves for fabrication of decorative compound structures, such as decorative laminates and different furniture components.
    Type: Grant
    Filed: April 13, 2000
    Date of Patent: November 6, 2001
    Assignee: Koehler decor GmbH & Co. KG
    Inventor: Matscheko Horst
  • Patent number: 6310124
    Abstract: Aqueous dispersions of cationic water-soluble polymers are provided, as well as processes for making and methods of using the same.
    Type: Grant
    Filed: November 25, 1998
    Date of Patent: October 30, 2001
    Assignee: Cytec Technology, Corp.
    Inventors: Sun-Yi Huang, Louis Rosati, Joseph J. Kozakiewicz
  • Patent number: 6291575
    Abstract: This invention relates to a phosphoric acid group-containing non-aqueous dispersion wherein polymer particles are dispersed in a solution of a macromolecular dispersion stabilizer dissolved in an organic solvent, said polymer particle being a particle of polymer comprising a phosphoric acid group-containing polymerizable unsaturated monomeric unit as a constituent component. With use of said phosphoric acid group-containing non-aqueous dispersion, there can be improved interlayer adhesivity between a metallic coating film, which is formed from a leafing type aluminum flake pigment, and another coating film adjacent thereto, without reducing the excellent effects such as dense metallic feeling of the coated surface, a chrome plating-like finish, and strong brightness feeling and strong flip-flop perperties, which are produced by such a metallic coating film.
    Type: Grant
    Filed: June 5, 1998
    Date of Patent: September 18, 2001
    Assignee: Kansai Paint Co., Ltd.
    Inventors: Yoshiyuki Yukawa, Yutaka Masuda, Akimasa Nakahata
  • Patent number: 6287679
    Abstract: A method for forming a water swellable coating and a water swellable coating for forming a coated substrate are provided. The water swellable coatings are semi-gel dispersions of particulate superabsorbent polymer in a polyvinyl chloride plastisol. A dispersion is formed from the polymer and plastisol, then contacted with a substrate and heat cured to a semi-gel state. The coatings are capable of swelling in the presence of water to protect the substrates from water penetration, block water from penetrating the coatings to reach other substrates or to retain water to prevent leakage.
    Type: Grant
    Filed: January 22, 1998
    Date of Patent: September 11, 2001
    Assignee: Fiber-Line, Inc.
    Inventors: Vincent J. Pappas, Louis A. Vitola, Vernon Z. Detwiler
  • Patent number: 6281291
    Abstract: A composition useful in paper and board making comprises a carboxylated surface size containing at least 40 mole percent of hydrophobic groups and at least about 25 mole percent of carboxylated groups such as styrene-(meth)acrylic aicd copolymers or styrene-maleic acid (anhydride or salt) copolymers, a hydrophilic polyacrylamide and a crosslinking agent such as glyoxylated vinylamide polymers, formaldehyde, melamine-formaldehyde condensates and glyoxyl-extended materials.
    Type: Grant
    Filed: December 30, 1999
    Date of Patent: August 28, 2001
    Assignee: Bayer Corporation
    Inventors: Rajiv Bazaj, Gerald Guerro, David Dauplaise
  • Patent number: 6271300
    Abstract: A thermoreversibly thickening binder composition, comprises a resin latex wherein the amount of an emulsifier in the aqueous phase is smaller than 0.01 mmol/g, and a vinyl polymer having reversibility of hydrophilicity and hydrophobicity at a certain transition temperature. The resin latex is preferably prepared by using an emulsifier having a radically polymerizable group, and preferable as said vinyl polymer is a polymer having a cation-forming group. The binder composition exhibits an excellent chemical stability to factors other than heat without causing migration of the latex resin particles onto the surface of the coated layer even during the time of heat-drying, and thermoreversible thickening effects caused by a sharp heat-sensitive gelling properties. When applied to preparation of coated paper and pressure-sensitive recording sheet, the binder composition provides products excellent in gloss, printability and color producing properties.
    Type: Grant
    Filed: March 7, 1996
    Date of Patent: August 7, 2001
    Assignee: Sanyo Chemical Industries, Ltd.
    Inventors: Tatsuya Ohsumi, Toshihiro Kanzawa
  • Patent number: 6268431
    Abstract: Disclosed are hair shampoo compositions which provide cleaning and styling performance, which comprise dispersed water insoluble, polymer latex particles, wherein the polymer latex particles have a selected glass transition temperature (Tg) of between about −20° C. and about 10° C. The shampoo compositions will generally contain one or more compatible surfactants, one or more optional materials, and a water or water-containing carrier as an aqueous carrier.
    Type: Grant
    Filed: September 1, 1995
    Date of Patent: July 31, 2001
    Assignee: The Procter & Gamble Company
    Inventors: Michael Albert Snyder, James Robert Schwartz
  • Patent number: 6262168
    Abstract: Aqueous dispersions of cationic water-soluble polymers are provided, as well as processes for making and methods of using the same. The cationic polymers contain anionic recurring units in amounts that encourage the formation of the aqueous dispersion and/or advantageously reduce the bulk viscosity of the aqueous dispersion.
    Type: Grant
    Filed: March 11, 1998
    Date of Patent: July 17, 2001
    Assignee: Cytec Technology Corp.
    Inventors: Sun-Yi Huang, Joseph J. Kozakiewicz, Louis Rosati
  • Patent number: 6258887
    Abstract: A multi-stage aqueous emulsion-polymer suitable for use in dirt pickup resistant coatings and coatings containing the polymer are provided. The multi-stage aqueous emulsion polymer includes (i) a first polymer including at least one nonionic copolymerized monoethylenically unsaturated monomer, from 0.5% to 7% of a copolymerized monoethylenically unsaturated ionic monomer, based on the weight of the first polymer, and from 0% to 1.0%, based on the weight of the first polymer, of a copolymerized multi-ethylenically unsaturated monomer, the first polymer having a Tg of 15° C. to 105° C.; and (ii) a second polymer comprising at least one nonionic copolymerized monoethylenically unsaturated monomer, from 0% to 2% of a copolymerized monoethylenically unsaturated ionic monomer, and from 0.25% to 6%, based on the weight of the second polymer, copolymerized multi-ethylenically unsaturated monomer, the second polymer having a Tg of −55° C. to 30° C.
    Type: Grant
    Filed: November 30, 1999
    Date of Patent: July 10, 2001
    Assignee: Rohm and Haas Company
    Inventors: James Keith Bardman, Ralph Craig Even, Mark Stephen Frazza, Yili Guo, Robert Krasnansky, Rosemarie Palmer Lauer
  • Patent number: 6235205
    Abstract: Aqueous dispersions of cationic water-soluble polymers are provided, as well as processes for making and methods of using the same.
    Type: Grant
    Filed: November 2, 1998
    Date of Patent: May 22, 2001
    Assignee: Cytec Technology Corp.
    Inventors: Sun-Yi Huang, Louis Rosati, Joseph J. Kozakiewicz
  • Patent number: 6228901
    Abstract: This invention relates to a method of producing traffic producing wear resistant traffic markings on road surfaces and to the traffic paint used therein. When a traffic paint containing a highly hydrophobic polymer, which is free from styrene is utilized, a wear resistant traffic marking is produced.
    Type: Grant
    Filed: April 5, 1999
    Date of Patent: May 8, 2001
    Assignee: Rohm and Haas Company
    Inventors: Ward Thomas Brown, Ann Robertson Hermes
  • Patent number: 6228920
    Abstract: The invention relates to blends of a polyethylene oxide (PEO) resin and a latex emulsion. The blends are formed by mixing or coating a PEO powder resin with a latex emulsion and melt blending the powder. The blends have improved processibility and toughness which are beneficial in the manufacture of PEO-based films and fibers. The films composed of the PEO/latex blend have improved toughness, breathability, and tear resistance and are useful for the manufacture of disposable, flushable medical and personal care products, such as diapers, tampons, feminine napkins, and bladder control pads.
    Type: Grant
    Filed: July 10, 1998
    Date of Patent: May 8, 2001
    Assignee: Kimberly-Clark Woldwide, Inc.
    Inventors: Vasily Topolkaraev, James H. Wang
  • Patent number: 6225395
    Abstract: Water-in-water dispersions based on water-soluble polymers can be prepared using a polymer dispersant containing hydrophobic units. The dispersions of the invention are stable on storage and are of low viscosity.
    Type: Grant
    Filed: October 30, 1998
    Date of Patent: May 1, 2001
    Assignee: Elf Atochem, S.A.
    Inventors: Denis Tembou Nzudie, Christian Collette
  • Patent number: 6221956
    Abstract: Aqueous dispersions of anionic water-soluble or water-swellable polymers are provided, where the polymers have an anionic charge of greater than 16% and where the dispersions maintain their form at a pH of 5.1 or greater. Processes for making these dispersions are also disclosed, as well as methods of using these dispersions to treat water containing various types of suspended materials. Dry polymers, preferably formed by drying these aqueous dispersions, are also disclosed.
    Type: Grant
    Filed: September 21, 1999
    Date of Patent: April 24, 2001
    Assignee: Cytec Industries, Inc.
    Inventor: Haunn-Lin Chen
  • Patent number: 6197848
    Abstract: A composition comprising an ethylene containing polymer, a crosslinking agent and a treated filler material. The treated filler material comprises a treating agent which is a polymer comprising acrylonitrile and at least one other monomer. A preferred treated filler material is a treated carbon black and a preferred ethylene containing polymer is an ethylene vinyl acetate (EVA) polymer. A semiconductive composition of the present invention may be advantageously utilized in electrical wire and cable application.
    Type: Grant
    Filed: February 17, 1998
    Date of Patent: March 6, 2001
    Assignee: Cabot Corporation
    Inventors: Robert S. Whitehouse, Thomas F. Reed
  • Patent number: 6194631
    Abstract: Poly(vinylamine)-based superabsorbent gels are disclosed. The superabsorbent gels either comprise a mixture of a poly(vinylamine) polymer and an acidic water-absorbing polymer, like polyacrylic acid, or comprise a salt of a poly(vinylamine) polymer. An improved method of preparing poly(vinylamine), and improved diaper cores, also are disclosed.
    Type: Grant
    Filed: October 28, 1998
    Date of Patent: February 27, 2001
    Assignee: Amcol International Corporation
    Inventors: Michael A. Mitchell, Thomas W. Beihoffer, Leticia L Trzupek, Jerald W. Darlington, Jr., Mark Anderson
  • Patent number: 6150432
    Abstract: Disclosed is a polymer blend composition and shaped article, and a process of blending and making shaped articles of polymer blends in which the biocompatibility of various polymers is improved by blending with them a polymer including a zwitterionic group. The zwitterionic group is usually an ammonium phosphate ester, preferably a choline, zwitterionic group and the polymer containing it may be produced by the free radical polymerization of ethylenically unsaturated monomers including a monomer bearing the zwitterionic group. Blending of the two polymers may be achieved by dry blending particulate polymers or by mixing the polymers in liquid dispersion or solution followed by removal of the liquid medium. The fibrinogen absorption and/or platelet activation of polymers may be reduced to a value of less than 80% or even less than 60% of the base polymer by introducing amounts of more than 10% or more than 30% of the zwitterionic group containing polymer.
    Type: Grant
    Filed: January 26, 1998
    Date of Patent: November 21, 2000
    Assignee: Biocompatibles Limited
    Inventors: Stephen Alister Jones, Peter William Stratford, Steven Rimmer
  • Patent number: 6143363
    Abstract: A composition comprising a water-soluble cationic group-containing high-molecular compound (P1) derived from the reaction of (A) epichlorohydrin and a dialkyl or dialkanol amine, or (B) a glycidyl group-terminated hydrophilic oligomer and a diamine, dialkylamine or dialkanolamine; optionally, a high-molecular compound (P2) having a condensable functional group in a side chain such as alkylolacrylamide-bearing high-molecular compound (E) or hydrolyzable trialkylsilyl group-containing acrylic ester high-molecular compound (F); and a poly(meth)acrylate (P3) is coated onto a substrate and cured by ultraviolet radiation to form a printing medium.
    Type: Grant
    Filed: October 26, 1998
    Date of Patent: November 7, 2000
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiromichi Noguchi, Masami Ikeda, Makiko Kimura, Masato Katayama, Akio Kashiwazaki, Yoshie Nakata, Yuko Nishioka
  • Patent number: 6133338
    Abstract: The present invention relates to an adhesive having high adhesiveness to a metal, especially a noble metal and a noble metal alloy. This adhesive comprises a thiouracil derivative typified by 6-methacryloyloxyhexyl 2-thiouracil-5-carboxylate, a radical-polymerizable monomer such as 2,2-bis(4-(methacryloxyethoxy)phenyl)propane, and a polymerization initiator, and as required, a filler.
    Type: Grant
    Filed: August 4, 1998
    Date of Patent: October 17, 2000
    Assignee: Tokuyama Corporation
    Inventors: Mikio Kimura, Masayuki Aizawa
  • Patent number: 6133368
    Abstract: A dispersant system useful in the formation of dispersions of water soluble polymers is disclosed. The dispersant system comprises two polymers, the first being a copolymer of diallyldimethyl ammonium chloride with a C.sub.6 to C.sub.20 quaternary ammonium salt of a monomer selected the from the group consisting of dialkylaminoalkylacrylates, dialkylaminoalkylmethacrylates, dialkylaminoalkylacrylamides, and dialkylaminoalky (meth) acrylamides as well as certain alkyl esters of acrylic acid. The second polymer is a water soluble cationic polymer composed of at least 20 mole percent of a cationic monomer represented by the formula: ##STR1## where R.sub.4 is either hydrogen or CH.sub.3 ; R.sub.5 and R.sub.6 are each an alkyl group having 1 to 2 carbon atoms; R.sub.7 is a hydrogen atom or an alkyl group having 1 to 2 carbon atoms; A.sub.2 is either an oxygen atom or NH; B.sub.2 is either an alkylene group having 2 to 4 carbon atoms or a hydroxypropylene group and X.sub.2.sup.- is an anionic counterion.
    Type: Grant
    Filed: December 9, 1993
    Date of Patent: October 17, 2000
    Assignee: Nalco Chemical Company
    Inventors: John R. Hurlock, Manian Ramesh
  • Patent number: 6120869
    Abstract: An adhesive roofing tape is based on a combination of brominated butyl rubber and EPDM. A non-diene block terpolymer is interspersed in the cross-linked polymer network. A plasticizer and tackifier are included to provide resiliency and permanent tack. An important aspect of the invention is to use a high molecular weight polyisobutylene plasticizer and a peroxide curing system. Rapid crosslinking without concomitant rapid degradation of the brominated butyl rubber occurs and some limited degradation of the plasticizer contributes to surface tack. A method of making the adhesive roofing tape is also provided.
    Type: Grant
    Filed: December 22, 1997
    Date of Patent: September 19, 2000
    Assignee: Carlisle Companies Inc.
    Inventors: Daniel John Cotsakis, Ronald Lynn Senderling, Nicholas John Shears
  • Patent number: 6110990
    Abstract: An antifouling coating composition includes (A) antifouling agent, (B) film forming copolymer of 1000 to 50,000 in number average molecular weight, and structural units derived from a trialkylsilyl ester of polymerizable unsaturated carboxylic acid in an amount of 20 to 65% by weight, and (C) chlorinated paraffin. The composition may also contain one or more of (D) (meth)acrylic ester polymer of 1000 to 100,000 in number average molecular weight; (E) inorganic dehydrating agent, (F) flake pigment, (G) zinc flower. In other embodiments the composition includes above components (A), (B) and (D) wherein (B):(D)=100:10 to 500. Coating films formed from the above antifouling coating compositions, such as on a hull or an underwater structure, are excellent in cracking resistance, resistance to peeling from ship bottom materials and primer layers, antifouling properties and consumability (self-polishing properties). Further, these antifouling coating compositions are excellent in storage stability.
    Type: Grant
    Filed: January 30, 1997
    Date of Patent: August 29, 2000
    Assignee: Chugoku Marine Paints Ltd
    Inventors: Naoya Nakamura, Yasuto Hikiji, Yasuyuki Kiseki, Makoto Tsuboi
  • Patent number: 6107391
    Abstract: The present invention relates to a one-component system based on coreactive latexes which is able to lead to coatings which are crosslinkable at room temperature and post-crosslinkable by heat treatment, the said system consisting of a mixture of two particle dispersions, (A) and (B), each obtained by aqueous emulsion polymerization of a monomer composition A and B, respectively, (a) at least one free-radically polymerizable ethylenically unsaturated monomer comprising a functional group ##STR1## where X represents O or S, which enters into the monomer composition A; and (b) at least one free-radically polymerizable ethylenically unsaturated monomer comprising a masked aldehyde functional group selected from acetal, mercaptal, mercaptol, dioxolane and dithiolane, which enters into the monomer composition B.
    Type: Grant
    Filed: April 24, 1998
    Date of Patent: August 22, 2000
    Assignee: Elf Atochem S.A.
    Inventors: Christophe Verge, Isabelle Betremieux
  • Patent number: 6103788
    Abstract: The present invention relates to a curable resin composition for use in water-based coating materials which includes as essential components an emulsion polymer (A) containing tertiary amino groups obtained by carrying out emulsion polymerization of a vinyl monomer containing a tertiary amino group with another copolymerizable vinyl monomer in a water-based medium, and a compound (B) containing, at least, an epoxy group and a hydrolyzable silyl group, with this composition preferably also including a water-based compound (C) obtained by adding a neutralizing agent to a vinyl polymer (I) containing acidic groups and/or tertiary amino groups so as to neutralize at least 10% of the acidic groups and/or the tertiary amino groups, and then dispersing or dissolving in water, and/or a compound (D), which is not included in compound (B), and contains hydrolyzable silyl group and/or a silanol group.
    Type: Grant
    Filed: July 22, 1997
    Date of Patent: August 15, 2000
    Assignee: Dainippon Ink and Chemicals, Inc.
    Inventors: Nobuo Harui, Akifumi Yamamoto, Hidehisa Nakamura
  • Patent number: 6100322
    Abstract: The invention relates to a process for the production of paper from a suspension of cellulose containing fibers, and optional fillers, comprising adding to the suspension a low molecular weight cationic organic polymer, a high molecular weight cationic or amphoteric polymer and anionic inorganic particles, forming and draining the suspension on a wire, wherein the low molecular weight polymer has a molecular weight below 700,000 and the high molecular weight polymer has a molecular weight above 1,000,000, said polymers being simultaneously added to the suspension.
    Type: Grant
    Filed: October 2, 1998
    Date of Patent: August 8, 2000
    Assignee: Eka Chemicals AB
    Inventors: Michael Persson, Joakim Carlen, Hans Johansson, Carlos Cordoba
  • Patent number: 6093359
    Abstract: A process is disclosed for the manufacture of reinforced composites. This method provides a process that allows for the direct mixing of discontinuous reinforcement such as wet chopped strands of glass fiber or continuous reinforcement such as glass strands, with an aqueous suspension of a solution polymerized polymer, such as polyvinyl chloride. The process results in a cost-effective means for reinforcing polymers such as PVC while simultaneously substantially improving properties such as impact strength, stiffness, and moldability without the need for a binder.
    Type: Grant
    Filed: November 6, 1997
    Date of Patent: July 25, 2000
    Inventors: James V. Gauchel, Robert M. Skrowronek, Thomas F. Martin, III, Anthony G. Hankin
  • Patent number: 6080804
    Abstract: Processes for producing free flowing, Mannich and glyoxal polyacrylamide water soluble and water-swellable granules from a water-in-oil emulsion and compositions comprising such dry polymer granules are disclosed.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: June 27, 2000
    Assignee: Cytec Technology Corp.
    Inventors: William Bloor Davies, Gary Kaui Lani Miller
  • Patent number: 6074761
    Abstract: A printing medium comprising a substrate having at least one surface and a coating on the surface wherein the coating comprises: (a) binder comprising: (1) organic polymer which is substantially free of ammonium groups, (2) first cationic addition polymer consisting essentially of quaternary ammonium-containing mer units derived from addition monomer and ammonium-free mer units derived from addition monomer, and (3) second cationic addition polymer consisting essentially of secondary, tertiary, or both secondary and tertiary ammonium-containing mer units derived from addition monomer and ammonium-free mer units derived from addition monomer, wherein the binder constitutes from 20 to 90 percent by weight of the coating; and (b) finely divided substantially water-insoluble filler particles which have a maximum dimension of less than 500 nanometers, are distributed throughout the binder, and constitute from 10 to 80 percent by weight of coating.
    Type: Grant
    Filed: June 13, 1997
    Date of Patent: June 13, 2000
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Alan E. Wang, Louis J. Nehmsmann, Suk H. Cho, Robert H. Tang, William C. Allison
  • Patent number: 6075085
    Abstract: A recording liquid comprising a colorant, water and at least two kinds of fine resin particles. In a preferred embodiment, at least one of the two kinds of the fine resin particles are fine self-crosslinkable resin particles. In another preferred embodiment, the number of the kinds of the fine resin particles is 3 or more. Also, disclosed is an image recording method using the recording liquid.
    Type: Grant
    Filed: September 8, 1997
    Date of Patent: June 13, 2000
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Yuzuru Fukuda, Takeshi Mikami, Jiro Minabe, Yasufumi Suwabe
  • Patent number: 6069200
    Abstract: Curable compositions comprising stable, water dispersible, curable polymers containing sterically hindered alkoxylated silane groups and acid groups blocked by fugitive bases at 0.1 to 75 weight percent of the total composition and water at 99.9 to 25 weight percent of the total composition are taught herein, as well as methods for the use and manufacture thereof. Additional components, such as emulsifiers, buffers and thickeners are also taught. These compositions are useful as adhesives, sealants and paints. The compositions have improved properties including solvent resistance, adhesion, hardness, abrasion resistance and mar resistance.
    Type: Grant
    Filed: September 22, 1997
    Date of Patent: May 30, 2000
    Assignee: CK Witco Corporation
    Inventors: Ming J. Chen, Frederick D. Osterholtz