Patents Examined by N. Sarofim
  • Thermoplastic resin composition and laminate comprising the same
    Patent number: 5891538
    Abstract: A thermoplastic resin composition comprising (i) 5 to 80% by weight of a polyamide resin, (ii) 15 to 90% by weight of a fluororesin and (iii) 1 to 80% by weight of a fluororubber having a tensile modulus at ordinary temperature of not more than 500 Kg/cm.sup.2, and a laminated material having a layer formed from the thermoplastic resin composition have excellent chemical resistance.
    Type: Grant
    Filed: April 29, 1996
    Date of Patent: April 6, 1999
    Assignee: Baikin Industries, Ltd.
    Inventors: Yoshihisa Yamamoto, Takafumi Yamato, Tetsuo Shimizu, Takeshi Harada
  • Highly polymerizable N-vinylcarboxylic acid amide and production process thereof
    Patent number: 5892115
    Abstract: A highly polymerizable N-vinylcarboxylic acid amide having an N-1,3-butadienylcarboxylic acid amide content of 30 ppm or less, a process for producing the same, and a process for producing a homopolymer of N-vinylcarboxylic acid amide or a copolymer thereof with another copolymerizable monomer using the same. Also, a highly polymerizable N-vinylcarboxylic acid amide is produced by thermal cracking or catalytic cracking of N-(1-alkoxyethyl)carboxylic acid amide or ethylidenebiscarboxylic acid amide, wherein the N-vinylcarboxylic acid amide content of the N-(1-alkoxyethyl)carboxylic acid amide or ethylenebiscarboxylic acid amide is 10 wt % or less.
    Type: Grant
    Filed: December 23, 1997
    Date of Patent: April 6, 1999
    Assignee: Showa Denko Kabushiki Kaisha
    Inventors: Toshiyuki Aizawa, Hitoshi Nakamura, Tetsuo Kudo, Kunitoshi Wakabayashi, Kenji Shimamura, Shun-ichi Nagamatsu
  • Method of improving scuff and cut resistance of ionomer covered game ball
    Patent number: 5891973
    Abstract: Disclosed herein is a game ball and method for making the same. The game ball has an ionomeric cover which includes a combination of ionomeric crosslinks and covalent crosslinks. The game ball cover is superior in at least one of cut resistance and scuff resistance to a conventional cover that does not have covalent crosslinks but is otherwise substantially identical in composition. The game ball cover of the invention is particularly useful for improving the durability of golf balls to be struck with sharp-grooved clubs.
    Type: Grant
    Filed: October 2, 1997
    Date of Patent: April 6, 1999
    Assignee: Lisco, Inc.
    Inventors: Michael J. Sullivan, Thomas Kennedy
  • Use of stable amino-functional latexes in water-based inks
    Patent number: 5891950
    Abstract: A water-based ink composition is described. The ink composition contains a pigment and a polymer latex. The polymer latex may be a polymeric (polyamino) enamine latex or a mixture of a polymeric (polyamino) enamine latex and an acetoacetoxy-functional polymer latex. The inks are particularly useful as laminating and surface-printing inks. Methods of printing are also described.
    Type: Grant
    Filed: May 21, 1997
    Date of Patent: April 6, 1999
    Assignee: Eastman Chemical Company
    Inventors: Martha Jean Collins, Glen Dennis Shields, Rebecca Reid Stockl, James Wayne Taylor
  • Process for preparing solvent-type acrylic pressure-sensitive adhesives and medical pressure-sensitive adhesive
    Patent number: 5886122
    Abstract: The object is directed toward obtaining a process for preparing a solvent-type acrylic pressure-sensitive adhesive which is able to increase a conversion at polymerization in the preparation of the solvent-type acrylic pressure-sensitive adhesive to thereby solve the problems of odors associated with residual monomers and of attachment of gels on reactor walls, and further to provide improved productivity and workability.In the preparation of the solvent-type acrylic pressure-sensitive adhesives, a monomer composition containing alkyl (meth)acrylate ester as its main component is subjected to solution polymerization under a closed condition at least in a latter stage of the polymerization reaction. In the polymerization, the solution to be polymerized is maintained at temperatures not lower than a boiling point thereof under normal pressures or at 50.degree.-120.degree. C.
    Type: Grant
    Filed: September 15, 1997
    Date of Patent: March 23, 1999
    Assignee: Sekisui Kagaku Kogyo Kabushiki Kaisha
    Inventors: Takayuki Oka, Kenji Tsubota, Takashi Shinjo, Takeshi Nakachi, Mitsue Matsumoto, Motoi Nagano
  • Crosslinkable dispersion powders as binders for fibers
    Patent number: 5886121
    Abstract: This invention covers the use of cross-linkable redispersible dispersion powders based on vinyl ester copolymers or (meth)acrylic acid ester copolymers as binders for the dry binding of fiber materials.
    Type: Grant
    Filed: April 7, 1997
    Date of Patent: March 23, 1999
    Assignee: Wecker-Chemie GmbH
    Inventors: Johannes Kinkel, Gerhard Brink, Walter Ernet, Joachim Schulze, Konrad Wierer
  • Methods for making styrene copolymers and uses thereof
    Patent number: 5886076
    Abstract: A polymer comprising styrene or substituted-styrene and carboxylated monomer is prepared by a solution polymerization process, comprising first a polymerization step, followed by a neutralization step, and then a distillation step. The polymers have relatively low molecular weights, generally below about 10,000, and can have higher styrene content than has hither been possible. The polymers are found to have good soil release properties and so to be particularly useful in cleaning compositions for fabric or hard surface cleaning.
    Type: Grant
    Filed: December 4, 1996
    Date of Patent: March 23, 1999
    Assignee: National Starch and Chemical Investment Holding Coporation
    Inventors: Paul T. Kimpton, Robert W. Hodgetts
  • Amorphous perfluoropolymers
    Patent number: 5883177
    Abstract: Use of amorphous perfluoropolymers based on homopolymers of the TTD dioxole or its amorphous copolymers to prepare solutions in fluoro-containing solvents, to obtain solutions for coatings, wherein TTD has the formula: ##STR1## wherein R.sub.F is a perfluoroalkylic radical with 1-5 carbon atoms, linear or branched when possible; X.sub.1 and X.sub.2 equal to or different from each other being F or CF.sub.3 ; the TTD amount ranges from 40 to 100% by moles.
    Type: Grant
    Filed: April 21, 1997
    Date of Patent: March 16, 1999
    Assignee: Ausimont S.p.A.
    Inventors: Pasqua Colaianna, Giulio Brinati, Vincenzo Arcella
  • Initiator system and adhesive composition made therewith
    Patent number: 5883208
    Abstract: Systems for initiating the polymerization of acrylic monomers comprising (1) organoborane amine complexes and (2) decomplexers comprising at least one anhydride group. Adhesive compositions prepared from the initiator systems advantageously exhibit low levels of mobile constituents, excellent solvent resistance, and good adhesion to low energy surfaces.
    Type: Grant
    Filed: November 8, 1996
    Date of Patent: March 16, 1999
    Assignee: Minnesota Mining and Manufacutring Company
    Inventor: E. John Deviny
  • Alkyl-containing porous resin, process for its preparation and its use
    Patent number: 5880240
    Abstract: An alkyl-containing porous resin with a specific surface area of 50 to 600 m.sup.2 /g, the resin being prepared by polymerizing a monomer mixture of, based on the total weight of the monomers, 15 to 97% by weight of divinylbenzene, 0 to 82% by weight of at least one aromatic monovinyl monomer selected from the group consisting of styrene, methylstyrene and ethylvinylbenzene and 3 to 50% by weight of a vinylbenzyloxyalkane derivative represented by the formula ##STR1## wherein n is an integer of 1 to 18, a process for its preparation and its use.The porous resin of the invention is capable of fully exhibit its modified functions based on the variations of chemical and structural environments on the surface of resin, the functions being modified by introducing alkyl groups having varying chain lengths.
    Type: Grant
    Filed: November 26, 1997
    Date of Patent: March 9, 1999
    Assignee: Arakawa Chemical Industries, Ltd.
    Inventor: Takaharu Tsuno
  • Fusible chlorine-free vinyl acetate copolymer fibres
    Patent number: 5880239
    Abstract: Fusible vinyl acetate copolymer fibers based on vinyl acetate copolymers are provided and contain (a) at least 40.0% by weight of vinyl acetate units; (b) 15.0 to 50.0% by weight of monomer units that consist of one or several chlorine-free, ethylenically unsaturated monomer units that consist of one or several ethylenically unsaturated monomers whose homopolymers have a glass transition temperature Tg from -100.degree. to 0.degree. C.
    Type: Grant
    Filed: September 5, 1997
    Date of Patent: March 9, 1999
    Assignee: Wacker-Chemie GmbH
    Inventors: Peter Tschirner, Johannes Kinkel, Dieter Gorzel
  • Curable fluorine-containing copolymer and coating liquid composition containing same
    Patent number: 5880234
    Abstract: The invention relates to a curable fluorine-containing copolymer prepared by copolymerizing a monomer mixture. This monomer mixture is in an amount of 100 mol % in total and includes (a) 10-60 mol % of a first polymerizable monomer that is one of hexafluoroisobutene and hexafluoroacetone, each of which has one hexafluoroisopropylidene group; (b) 10-70 mol % of a fatty acid vinyl ester that is represented by a general formula of CH.sub.2 .dbd.CH--OC (.dbd.O) --R.sup.1 where R.sup.1 is one of an alkyl group and --(CH.sub.2).sub.m --R.sup.2 --(CH.sub.2).sub.n --H where R.sup.
    Type: Grant
    Filed: April 1, 1997
    Date of Patent: March 9, 1999
    Assignee: Central Glass Company, Limited
    Inventors: Kazuhiko Maeda, Yukio Ikeda, Kentaro Tsutsumi, Yutaka Maruyama, Shuyo Akama, Michitaka Ohtani
  • Microemulsion polymerization systems for the production of small polytetrafluorethylene polymer particles
    Patent number: 5880213
    Abstract: An aqueous microemulsion polymerization procedure is described in which very small colloidal polymer particles are produced from tetrafluoroethylene monomer. The polymerization procedure involves forming a microemulsion of at least one liquid saturated organic compound; adding gaseous tetrafluoroalkyl monomer to the microemulsion; and initiating polymerization by adding a free-radical initiator to the mixture.
    Type: Grant
    Filed: June 28, 1996
    Date of Patent: March 9, 1999
    Inventors: Huey Shen Wu, Jack Hegenbarth, Chen Xin-Kang, Chen Jian-Guo
  • Sulfonated perfluoroelastomer composition having improved processability
    Patent number: 5874523
    Abstract: Curable perfluoroelastomer compositions are prepared in the presence of an initiator system comprising a mixture of a persulfate salt and a reducing agent wherein the amount of reducing agent present is no more than 20 mole percent of the total initiator system. The perfluoroelastomer is isolated and decarboxylated, thereby providing a product having excellent processability.
    Type: Grant
    Filed: November 17, 1997
    Date of Patent: February 23, 1999
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Walter Werner Schmiegel
  • Molecularly imprinted beaded polymers and stabilized suspension polymerization of the same in perfluorocarbon liquids
    Patent number: 5872198
    Abstract: A suspension polymerization technique is provided for molecular imprinting based on the use of a perfluorocarbon liquid as the dispersing phase that does not interfere with the interactions between functional monomers and print molecules required for the recognition process during molecular imprinting, and provides controllable particle sizes within less than about 5 .mu.m to about 100 .mu.m.
    Type: Grant
    Filed: May 27, 1997
    Date of Patent: February 16, 1999
    Inventors: Klaus Mosbach, Andrew G. Mayes
  • Polymethacrylate molding compound with ethylene
    Patent number: 5872202
    Abstract: The invention relates to a molding mass which can be thermoplastically processed, characterized in that it consists of monomer units ofa) 80-99.9 wt.- % methyl methacrylate,b) 0.1-20 wt.- % ethylene,c) 0-19.9 wt.- % other comonomers.The invention further relates to a method for the production of the molding mass, as well as molded elements made from it.
    Type: Grant
    Filed: December 22, 1997
    Date of Patent: February 16, 1999
    Assignee: Roehm GmbH
    Inventors: Werner Siol, Michael Wicker
  • Substrates which have been provided with an oil-, water- and soil-repellant treatment and fluorine-containing compositions for this purpose
    Patent number: 5872180
    Abstract: Fluorine-containing compositions for treating substrates to render them oil-, water- and soll-repellant, comprising a fluorine-containing acrylic copolymer and a fluorine-free poly(meth)acrylate.
    Type: Grant
    Filed: May 1, 1997
    Date of Patent: February 16, 1999
    Assignee: Bayer Aktiengesellschaft
    Inventors: Gisbert Michels, Hans-Albert Ehlert, Uwe Zweering
  • Initiator system and adhesive composition made therewith
    Patent number: 5872197
    Abstract: Systems for initiating the polymerization of acrylic monomers comprising (1) organoborane amine complexes and (2) bireactive decomplexers preferably comprising at least one free-radically polymerizable group and at least one amine-reactive group in the same molecule. The decomplexer is capable of forming a covalent bond with both the acrylic monomers and amine complex, resulting in a reduced level of mobile constituents. Furthermore, when the organoborane amine complex of the initiator system comprises a polyamine compound, polymerized acrylic compositions having improved solvent resistance are advantageously provided.
    Type: Grant
    Filed: June 23, 1997
    Date of Patent: February 16, 1999
    Assignee: Minnesota Mining & Manufacturing Company
    Inventor: E. John Deviny
  • Compression of ethylenically unsaturated monomers
    Patent number: 5872252
    Abstract: A process for compressing ethylenically unsaturated monomers at a pressure of 200-5000 bar in the absence of a polymerization initiator comprises carrying out compression in the presence of a sterically hindered amine derivative.
    Type: Grant
    Filed: June 2, 1997
    Date of Patent: February 16, 1999
    Assignee: BASF Aktiengesellschaft
    Inventors: Heinz Friedrich Sutoris, Alexander Aumuller, Andreas Koch, Andreas Deckers, Eckard Schauss, Roger Klimesch, Arend Jouke Kingma, Wilhelm Weber
  • Self-crosslinking aqueous dispersions
    Patent number: 5869589
    Abstract: The present invention is directed to polymer compositions containing a vinyl polymer component (A), formed by polymerization of .alpha.,.beta.-ethylenically unsaturated monomers, one which contains at least one hydroxyl group and one which contains no hydroxyl groups; a crosslinker component (B); an additive component (C); and a solvent component (D). The composition is useful for backcoating woven substrates and as a binder composition for non-woven substrates.
    Type: Grant
    Filed: July 17, 1997
    Date of Patent: February 9, 1999
    Inventors: Peter Webb Raynolds, Duane Allan Scott