Patents Examined by Robert A. Dawson
  • Patent number: 6593413
    Abstract: A room temperature rapid-curable silicone composition is provided which includes (A) an organopolysiloxane terminated with hydroxyl groups, having a viscosity of from 25 mPa·s to 1,000,000 mPa·s at 25° C.; (B) a compound selected from the group consisting of a hydrolyzable silane represented by the following general formula (1): RnSiX4−n  (1) wherein R represents a monovalent hydrocarbon group having 1 to 12 carbon atoms; X represents a compound selected from the group consisting of a ketoxime group, an alkoxyl group, an alkenoxyl group and an acyloxyl group; and n represents an integer of 0 to 2, and a partial hydrolysis-condensation product thereof; and (C) a water-containing wet-process silica having an average particle diameter of 100 &mgr;m or smaller, which is a chief source for feeding water necessary for condensation curing reaction.
    Type: Grant
    Filed: June 29, 2001
    Date of Patent: July 15, 2003
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Hironobu Muramatsu, Tsuneo Kimura
  • Patent number: 6589659
    Abstract: There is disclosed a sheet coated with a first silicone compound having a certain surface tension and a second silicone compound having a lower surface tension than the first silicone compound so that only the second silicone compound appears on the sheet surface or the second silicone compound appears on the sheet surface more than the first silicone compound. The sheet thus coated with the silicone compounds are highly water-repellent and highly effective in preventing adhesion of protein-containing stains. Moreover, it is highly resistant to friction so that the above effects can be maintained for a long period of time.
    Type: Grant
    Filed: March 23, 2000
    Date of Patent: July 8, 2003
    Assignee: Uni-Charm Corporation
    Inventors: Shigeo Imai, Hiroshi Tsuboi
  • Patent number: 6590026
    Abstract: The invention concerns a coating composition, in particular a paint comprising (A) 3 to 30 parts of a latex consisting of organic (co)polymers having a glass transition temperature ranging between −20° C. and 50° C.; (B) 0.05 to 5 parts of an epoxyfunctionalized polyorganosiloxane emulsion; (C) and 100 parts of mineral fillers.
    Type: Grant
    Filed: June 25, 2001
    Date of Patent: July 8, 2003
    Assignee: Rhodia Chimie
    Inventors: Michel Dorget, Mathieu Joanicot, GĂ©rard Mignani, Paul Branlard
  • Patent number: 6590027
    Abstract: A paint composition for automotive weather strips and glass runs which comprises a curable urethane-based emulsion paint having added thereto either at least two silane coupling agents selected from the group consisting of a silane coupling agent having an amino group, a silane coupling agent having an epoxy group, a silane coupling agent having a methacryloxy group and a silane coupling agent having an acryloxy group, or a reaction product obtained by previously mixing said at least two silane coupling agents. Also discloses are processes for producing automotive weather strips.
    Type: Grant
    Filed: March 19, 2001
    Date of Patent: July 8, 2003
    Assignee: Nishikawa Rubber Co., Ltd.
    Inventors: Nobumasa Sato, Keigo Matsumoto, Sei Tomohiro
  • Patent number: 6589903
    Abstract: A method for the synthesis of platinum alkenylpolysiloxane complexes, wherein a haloplatinum compound is reacted with at least one alkenylpolysiloxane, in the presence of a platinum complex as autocatalyst and a base, in an organic solvent.
    Type: Grant
    Filed: July 19, 2001
    Date of Patent: July 8, 2003
    Assignee: W. C. Heraeus GmbH & Co. KG
    Inventors: Ramona Reitz, Richard Walter
  • Patent number: 6590018
    Abstract: Compounds containing vinyl silane and epoxy functionality can be used as adhesion promoters or the main resin in curable compositions.
    Type: Grant
    Filed: September 28, 2001
    Date of Patent: July 8, 2003
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventor: Osama M. Musa
  • Patent number: 6589656
    Abstract: An epoxy resin composition of the invention comprises: an epoxy resin; a hardening agent; and a phenol-modified polyphenylene oxide having a number average molecular weight of 1000 to 4000, which is prepared by carried out a redistribution reaction between a polyphenylene oxide and a phenol compound in the presence of a reaction initiator which can be decomposed to generate an alcohol, a prepreg and a metal-clad laminate of the invention contain the epoxy resin composition.
    Type: Grant
    Filed: July 25, 2001
    Date of Patent: July 8, 2003
    Assignee: Matsushita Electric Works, Ltd.
    Inventors: Tetsuya Maekawa, Takao Hayashi, Takeshi Yoshimura, Eiichiro Saito, Kiyotaka Komori
  • Patent number: 6590056
    Abstract: Disclosed is an inorganic-organic hybrid polymer composed of nano-particles on the surface using a dendrimer and a manufacturing method thereof, in which nanometer-sized inorganic (metal) particles are uniformly dispersed across the surface of the polymer and available as optically, electrically and magnetically functional materials. The method includes the steps of: forming a functional anhydride group on a polymer-based matrix; selectively adding metal or inorganic salts to the dendrimer to prepare either of dendrimer-metal precursor solution or dendrimer-inorganic particle solution; inducing the reaction between the functional anhydride group of the surface of polymer matrix with the solution to form a chemical bond between the matrix and the dendrimer; and reducing the metal ions or inorganic particle by irradiation of light.
    Type: Grant
    Filed: May 21, 2001
    Date of Patent: July 8, 2003
    Assignee: Korea Institute of Science and Technology
    Inventors: Jongok Won, Yong Soo Kang, Bum Suk Jung, Jee Won Choun
  • Patent number: 6589651
    Abstract: The present invention provides adhesive compositions, particularly pressure sensitive adhesive compositions, comprised of from 30 weight percent to 70 weight percent of water insoluble graft copolymers dispersed in an aqueous medium. The graft copolymers are comprised of (i) from 1 weight percent to 30 weight percent of macromonomer, based on the total weight of the copolymer, wherein the macromonomer is water insoluble and has a number average molecular weight of from 2,000 to 50,000 g/mole and comprises from 85 to 100 weight percent polymerized units of at least one first ethylenically unsaturated monomer, 5 mole percent or less of polymerized mercapto-olefin compounds, and 10 weight percent or less polymerized acid-containing monomer; and (ii) from 70 weight percent to 99 weight percent of polymerized units of at least one second ethylenically unsaturated monomer, based on the total weight of the copolymer. In certain preferred embodiments, the adhesive compositions further comprise from 0.
    Type: Grant
    Filed: September 13, 2001
    Date of Patent: July 8, 2003
    Assignee: Rohm and Haas Company
    Inventors: Willie Lau, Paul Ralph Van Rheenen
  • Patent number: 6586105
    Abstract: The invention provides a packaging structure applied to an automotive component having semiconductors and electronic parts mounted on a ceramic base, characterized in that the semiconductors and electronic parts are partly or entirely sealed with a thixotropic silicone gel which has a thixotropy index of about 1.5-3.6 and a penetration depth of about 6-10 mm and a rate of change in viscosity of less than 10% of the initial value.
    Type: Grant
    Filed: April 3, 2001
    Date of Patent: July 1, 2003
    Assignee: Hitachi, Ltd.
    Inventors: Shuji Eguchi, Masahiko Asano, Mutsumi Watanabe, Kunito Nakatsuru, Hiroatsu Tokuda
  • Patent number: 6586535
    Abstract: This invention relates to silicone coating composition comprising a solventless silicone coating composition and a liquid silicone mist suppressant composition obtained by a method comprising reacting at least one organohydrogensilicon compound containing at least two silicon-bonded hydrogen groups with a large excess of at least one organoalkenylsiloxane containing at least three silicon-bonded alkenyl groups in the presence of a platinum group metal-containing catalyst.
    Type: Grant
    Filed: June 22, 2000
    Date of Patent: July 1, 2003
    Assignee: Dow Corning Corporation
    Inventors: Joseph Norbert Clark, Paul Cornelius Van Dort
  • Patent number: 6586090
    Abstract: The present invention provides an adhesive tape comprising a substrate and an adhesive layer formed on at least one side of the substrate, wherein the substrate comprises the following Component A, Component B and Component C: Component A: a thermoplastic resin having a carbonyl oxygen atom in the molecular skeleton Component B: a polymer alloy containing an ethylene component and a propylene component Component C: an inorganic metal compound surface-treated with a silane coupling agent but substantially no halogen atom. The adhesive tape and the substrate for the adhesive tape of the present invention are free of generation of dioxin or a toxic gas upon incineration, are superior in flexibility, resistance to thermal deformation, flame resistance and resistance to surface whitening, and show suitable stretchability and mechanical strength.
    Type: Grant
    Filed: February 22, 2001
    Date of Patent: July 1, 2003
    Assignee: Nitto Denko Corporation
    Inventors: Yoshio Nakagawa, Shigeki Ishiguro, Masayoshi Natsume, Shinichi Takada, Kooki Ooyama
  • Patent number: 6582825
    Abstract: A hydrophobicity imparting particulate is provided in the present invention. A silicone composition comprises (A) a silicone polymer and (B) a hydrophobicity imparting particulate filler that imparts a hydrophobicity property to the composition. An insulator comprises a housing portion that includes a cured product of (A) a silicone polymer and (B) a hydrophobicity imparting particulate filler. A hydrophobicity recovery property of a silicone polymer composition can be improved by determining a target hydrophobicity recovery property for the cured silicone composition, selecting a hydrophobicity imparting particulate (HIP) to impart the hydrophobicity recovery property to the silicone polymer composition and compounding a blend of (A) a silicone polymer and (B) the selected inorganic filler and heating to cure the blend.
    Type: Grant
    Filed: August 30, 2001
    Date of Patent: June 24, 2003
    Assignee: General Electric Company
    Inventors: Jayantha Amarasekera, John Raymond Krahn
  • Patent number: 6582620
    Abstract: The reaction product obtained by cohydrolysis and condensation of (A) a fluorinated alkyl-bearing alkoxysilane, (B) an amino-bearing alkoxysilane, and (C) an alkoxysilyl-bearing polyorganosiloxane is dissolved in water to provide a water-soluble, water/oil repellent treating composition. This water/oil repellent treating composition has improved water solubility and shelf stability, has no detrimental effects on the environment because of the aqueous system, and imparts fully durable water repellency and satisfactory softness and hand to textiles.
    Type: Grant
    Filed: December 19, 2001
    Date of Patent: June 24, 2003
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Shinji Miyadai, Kazuyuki Matsumura, Akira Yamamoto
  • Patent number: 6582824
    Abstract: A composition comprises a curable epoxy-containing material, a first thermoplastic polyurethane component, a curative for the epoxy-containing material, and optionally, a second thermoplastic polyurethane component that is different than the first thermoplastic polyurethane component. The compositions are useful for sealing discontinuities in a substrate surface, especially those found in motor vehicles. Sealant articles and methods of sealing discontinuities are also disclosed.
    Type: Grant
    Filed: March 30, 2001
    Date of Patent: June 24, 2003
    Assignee: 3M Innovative Properties Company
    Inventors: Stefan Weigl, Gertrud A. Klein, Shuichi Kitano, Kotaro Shinozaki, Tomohiro Koiwa, Kazuyoshi Shiozaki
  • Patent number: 6583201
    Abstract: An composition with improved electrical stability for use in microelectronic applications comprises a polymeric resin, a conductive filler, a curing agent, optionally either a reactive or a nonreactive diluent and a corrosion inhibitor to provide the electrical stability.
    Type: Grant
    Filed: April 25, 2001
    Date of Patent: June 24, 2003
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: Chih-Min Cheng, Gerry Fredrickson, Girish Hanchinamani
  • Patent number: 6582650
    Abstract: An oxide-containing organosilicon polymer containing 1 to 45% by weight of metal oxide particles, an oxide-containing silicon-carbide-based inorganic fiber obtained by using the above organosilicon polymer as a raw material and having excellent oxidation resistance, in particular excellent oxidation resistance in a high temperature oxidizing atmosphere containing moisture, a crystalline silicon-carbide-based inorganic fiber having a calcined structure of SiC and production processes of these.
    Type: Grant
    Filed: July 20, 2001
    Date of Patent: June 24, 2003
    Assignee: Ube Industries, Ltd.
    Inventors: Kiyoshi Kumagawa, Masaki Shibuya, Michiyuki Suzuki, Hiroyuki Yamaoka
  • Patent number: 6579949
    Abstract: A vulcanized elastomeric composition of matter comprises the reaction product of a sulfur-containing reagent with an anionic living polymer, the reagent being selected from the group consisting of R3—Si—S—R′—X, where R can all be the same or different and is selected from the group consisting of alkyls having from 1 to 8 carbon atoms, cycloalkyls having from 3 to 11 carbon atoms, or an arylene having from 6 to 14 carbon atoms, and X is a halogen, to form a R3—Si—S—R′ ended polymer; a filler; processing oil; and a cure package containing a deprotecting agent and at least one sulfur cure accelerator.
    Type: Grant
    Filed: October 30, 2001
    Date of Patent: June 17, 2003
    Assignee: Bridgestone Corporation
    Inventors: William L. Hergenrother, Christine M. Rademacher, James D. Ulmer
  • Patent number: 6579955
    Abstract: A linear polymer has repeating units represented by the formula wherein (a) n is an integer greater than or equal to 0, (b) x is an integer greater than or equal to 1, and  represents an unconjugated acetylenic group when x is equal to 1 or conjugated acetylenic groups when x is greater than 1; (c) Ar is an aromatic group, and (c) R1, R2, R3, R4, R5, R6, R7 and R8 are independently selected from the group consisting of alkyl, aryl, alkylaryl, haloalkyl, haloaryl and mixtures thereof. The linear polymer may be thermally cured to form a crosslinked polymer.
    Type: Grant
    Filed: January 16, 2002
    Date of Patent: June 17, 2003
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Teddy M. Keller, Craig Homrighausen
  • Patent number: 6579620
    Abstract: A water-repellent coating has tetrafluoroethylene resin powder, silicone resin binder, and organic solvent. The tetrafluoroethylene resin powder has a ratio of the peak absorbance at 1,800 cm−1 to the peak absorbance at 500 cm−1 of 0.0001 to 0.05 exclusive. A coating film is formed by applying such a coating on a substrate. The coating has the properties of high water repellency, excellent anti-ice-coating, excellent anti-snow-coating, and so on, in spite of not having a large amount of fluororesin powder. In addition, the coating of film keeps the water repellency regardless of whether the coating film is immersed into water for a long time.
    Type: Grant
    Filed: November 14, 2001
    Date of Patent: June 17, 2003
    Assignees: NTT Advanced Technology Corp., Nippon Telegraph and Telephone Corp.
    Inventors: Seiichiro Mizuno, Chiemi Nishi, Yasuhiro Tsukamoto, Masaie Fujino, Tsutomu Yanagawa, Takehito Ota, Hiroki Yonezawa, Ken-ichi Takai, Goro Yamauchi