Patents Examined by Melvyn I. Marquis
  • Patent number: 6020430
    Abstract: Terminally functionalized silicone copolymers prepared using protected functionalized initiators and processes for preparing the same. The silicone copolymers includes protected, functionalized silicone diene and/or alkenylsubstituted aromatic copolymers, such as mono-functional, homotelechelic, heterotelechelic, macromonomer, and radial copolymers. The protected functionalized copolymers can be optionally deprotected to afford functionalized silicone diene and/or alkenylsubstituted aromatic copolymers.
    Type: Grant
    Filed: May 20, 1998
    Date of Patent: February 1, 2000
    Assignee: FMC Corporation
    Inventors: James Anthony Schwindeman, Robert James Letchford
  • Patent number: 6017995
    Abstract: A suspension for the solvent-free production of silicone resin-bonded papers based on sheet silicates, which consists of:(a) 100 parts by weight of a sheet silicate,(b) 100 to 10,000 parts by weight of water,(c) 0.1 to 5 parts by weight of at least one silane of formula (I):(R'O).sub.a SiR.sub.4-a (I)in which R denotes substituted or unsubstituted hydrocarbon radicals having 1 to 20 carbon atoms and R' denotes C.sub.1-10 -alkyl, aryl, alkylaryl or hydrogen and a assumes a value from 1 to 3, and/or the partial hydrolysis product thereof,(d) 1 to 50 parts by weight of a pulverulent silicone resin of formula (II):(R'O).sub.b SiR.sub.C O.sub.(4-b-c)/2 (II)in which R and R.sup.1 have the abovementioned meaning and b assumes a value from 0 to 0.5 and c a value from 0.7 to 1.3, with the proviso that at least 5 parts by weight of the silicone resin of formula (II) are used per part by weight of the compound of formula (I),(e) 0.
    Type: Grant
    Filed: May 7, 1998
    Date of Patent: January 25, 2000
    Assignee: Wacker-Chemie GmbH
    Inventors: Guenter Beuschel, Holger Rautschek
  • Patent number: 6017587
    Abstract: The present invention relates to electrically conductive silicone compositions comprising an organopolysiloxane containing at least two alkenyl groups per molecule, an organohydrogenpolysiloxane having at least two silicon-bonded hydrogen atoms per molecule, a platinum group metal containing catalyst, a conductive metal particulate, a precrosslinked elastomeric silicone particle, and a non-reactive volatile diluent. The electrically conductive silicone compositions of this invention are useful as electrically conductive adhesives and coatings for electrical and electronic devices. The cured electrically conductive silicone compositions of this invention have high electroconductivity and rubbery elasticity.
    Type: Grant
    Filed: July 9, 1998
    Date of Patent: January 25, 2000
    Assignees: Dow Corning Corporation, Dow Corning Toray Silicone Co., Ltd.
    Inventors: Don Lee Kleyer, Michael Andrew Lutz, Katsutoshi Mine, Osamu Mitani, Kazumi Nakayoshi, Bernard Vanwert
  • Patent number: 6017974
    Abstract: An activation energy beam curable coating composition containing (A) a polymer having an organopolysiloxane unit and a quaternary ammonium salt unit and (B) a polyfunctional acrylate having 3 or more acryloyl groups in the molecule is disclosed. A film excellent in abrasion resistance, antistatic properties and transparency can be formed by applying the activation energy beam curable coating composition of the present invention to the surface of a material, and irradiating the coated surface with an activation energy beam.
    Type: Grant
    Filed: April 2, 1998
    Date of Patent: January 25, 2000
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Noritaka Hosokawa, Kazuhide Hayama
  • Patent number: 6015851
    Abstract: The present invention relates to rubber compositions containing an elastomer containing olefinic unsaturation and a bis anil compound of the formula ##STR1## where R.sup.1 and R.sup.2 may be the same or different and are independently selected from alkyls having from 1 to 5 carbon atoms and X is selected from the group consisting of H; OH; OAlk where Alk is an alkyl having from 1 to 3 carbon atoms; COOH and; COO.sup.- M.sup.+ where M is a metal selected from the group consisting of Zn, Na, Ca and Mg; and y is 0 to 2.
    Type: Grant
    Filed: June 17, 1998
    Date of Patent: January 18, 2000
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Neil Arthur Maly, Lawson Gibson Wideman, Lewis Timothy Lukich
  • Patent number: 6015457
    Abstract: Processes for producing poly (hydrido siloxane) copolymers and processes for producing solutions of such copolymers for coating semiconductor substrates are provided. The copolymers have the general formula: (HSiO.sub.1.5).sub.a (HSiO(OR)).sub.b (SiO.sub.2).sub.c, wherein R is a mixture of H and an alkyl group having between 1 and 4 carbon atoms; a+b+c=1; 0.5<a<0.99; 0.01<b<0.5; and 0<c<0.5. Processes for producing the copolymers use alkoxysilanes as starting materials. Processes for producing coating solutions include removal of water and alcohol. Films of such coating solutions are useful as planarizing dielectric layers.
    Type: Grant
    Filed: March 12, 1998
    Date of Patent: January 18, 2000
    Assignee: AlliedSignal Inc.
    Inventors: Roger Y. Leung, Tadashi Nakano
  • Patent number: 6015596
    Abstract: A fluorosilicon network polymer prepared by the reaction of a tetraholosilane of the formula 1: SiX4 with an organohologen compound of the formula 2: RZ , an insulating coating prepared therefrom, semiconductor devices coated therewith, and processes for producing the same. In said formulas, R represents at least monofluorinated alkyl or aryl; and X and Z represent each independently boromine, iodine or chlorine.
    Type: Grant
    Filed: October 27, 1997
    Date of Patent: January 18, 2000
    Assignee: Hitachi, Ltd.
    Inventors: Takao Miwa, Akira Watanabe, Osamu Ito, Minoru Matsuda
  • Patent number: 6015870
    Abstract: Polysulfide silanes: (RO).sub.3 SiC.sub.3 H.sub.6 S.sub.x C.sub.3 H.sub.6 Si(OR).sub.3 are reacted with an anhydrous sulfur compound: M.sup.1.sub.2 S or M.sup.2 S and a halogenoalkoxysilane: XC.sub.3 H.sub.6 Si(OR).sub.3 to form polysulfide silanes: (RO).sub.3 SiC.sub.3 H.sub.6 S.sub.y C.sub.3 H.sub.6 Si(OR).sub.3 wherein R is methyl or ethyl, x is a positive number of 3 to 6 on the average, M.sup.1 is an alkali metal or ammonium, M.sup.2 is an alkaline earth metal or zinc, X is a halogen, and y is a positive number less than x on the average. Short chain polysulfide silanes can be prepared with the industrial advantages of safety, high yields and low cost.
    Type: Grant
    Filed: September 28, 1998
    Date of Patent: January 18, 2000
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Shoji Ichinohe, Hideyoshi Yanagisawa, Akira Yamamoto
  • Patent number: 6015869
    Abstract: The present invention is a sorbent polymer with the (AB)n sequence where the fluorinated interactive A segment is fluoroalkyl-substituted bisphenol and the oligosiloxane B segment is an oligodimethylsiloxane. More specifically, the fluoroalkyl-substituted bisphenol contains two allyl groups and the oligodimethylsiloxane has terminal Si--H groups. The sorbent polymer may be used as thin films on a variety of chemical sensors, or as a component of a thin film on a chemical sensor. Crosslinked sorbent polymers are processable into stable thin films on sensor devices. Sorbent polymers are also useful in sensor arrays, in surface acoustic wave sensors, and in cladding of optical fibers. Sensor arrays provide better selectivity than single sensors and permit identification and quantification of more than one species in a mixture. The sorbent polymer is synthesized by hydrosilylation polymerization which is achieved by catalyzed heating.
    Type: Grant
    Filed: March 17, 1998
    Date of Patent: January 18, 2000
    Assignee: Battelle Memorial Institute
    Inventors: Jay W. Grate, Steven N. Kaganove
  • Patent number: 6015850
    Abstract: Disclosed herein are a rubber composition comprising a diene rubber and silica, wherein (i) the silica is compounded in a proportion of 10-150 parts by weight per 100 parts by weight of the diene rubber, and (ii) a silicone oil having a polar group at its side chain or terminal is compounded in a proportion of 0.1-50 parts by weight per 100 parts by weight of the silica, and has excellent rebound resilience, tensile property, abrasion property and processability, and a preparation process thereof.
    Type: Grant
    Filed: September 17, 1997
    Date of Patent: January 18, 2000
    Assignee: Nippon Zeon Co., Ltd.
    Inventors: Masao Nakamura, Yukio Takagishi
  • Patent number: 6013754
    Abstract: Polydiorganosiloxane or polyhydroorganosiloxane compositions are prepared which are room-temperature curable without the presence of a catalyst and in particular an organotin catalyst. The compositions are useful as primer coating compositions to promote adhesion of room temperature vulcanizable (RTV) silicone rubber coatings, especially those RTVs containing polydiorganosiloxanes.
    Type: Grant
    Filed: January 16, 1998
    Date of Patent: January 11, 2000
    Assignee: Courtaulds Coatings, Inc. Heavy Duty Division
    Inventors: Sylvain Fillion, Nick Tatavak
  • Patent number: 6013729
    Abstract: There is disclosed a moisture-curable elastomer composition obtained by dynamic heat treatment of a mixture comprising(a) an ethylene-.alpha.-olefin-unconjugated diene copolymer rubber,(b) a silicon-based crosslinking agent having two or more SiH groups within the molecule,(c) a hydrosilylation catalyst and(d) a hydrolyzable silane group-containing thermoplastic resin. Also disclosed is an elastomer composition resulting from molding of the above elastomer composition, followed by contacting with water, preferably in the presence of a silanol catalyst, to thereby cause crosslinking of the hydrolyzable silane group-containing thermoplastic resin. The elastomer composition of the present invention is excellent in rubber elasticity at high temperatures, low temperature impact resistance and oil resistance and have good moldability.
    Type: Grant
    Filed: April 1, 1998
    Date of Patent: January 11, 2000
    Assignee: Sumitomo Bakelite Co., Ltd.
    Inventors: Motoyoshi Tsujimoto, Tsuyoshi Iwasa
  • Patent number: 6008305
    Abstract: A primer for promoting adhesion between an elastomeric adhesive and a nonporous substrate containing a silane-modified saturated polyester polymer and an adhesion promoter in an anhydrous solvent. The invention is also directed to a silane-modified saturated polyester polymer, and an adhesion promoter made by the reaction of a multifunctional isocyanate and an organosilane.
    Type: Grant
    Filed: June 30, 1998
    Date of Patent: December 28, 1999
    Assignee: Adco Products, Inc.
    Inventors: Xiaobin Wang, Brian J. Briddell
  • Patent number: 6007914
    Abstract: The present invention provides fibers and products produced therefrom, including nonwoven webs and adhesive articles. The fibers, which can be multilayer fibers, include a polydiorganosiloxane polyurea copolymer.
    Type: Grant
    Filed: December 1, 1997
    Date of Patent: December 28, 1999
    Assignee: 3M Innovative Properties Company
    Inventors: Eugene G. Joseph, Ashish K. Khandpur, Audrey A. Sherman, Mieczyslaw H. Mazurek, Walter R. Romanko
  • Patent number: 6008309
    Abstract: Organopolysiloxane particles useful as catalysts, are cross-linked, comprise a single molecule, have chemically bound metallic compounds and an average diameter of from 5 to 200 nm and are soluble in at least one solvent chosen from dichloromethane, pentane, acetone, ethanol and water to at least 1% by weight. At least 80% of the particles have a diameter which deviates a maximum of 30% from the average diameter.
    Type: Grant
    Filed: March 9, 1998
    Date of Patent: December 28, 1999
    Assignee: Wacker-Chemie GmbH
    Inventors: Frank Baumann, Bernward Deubzer, Geck Michael, Schmidt Manfred
  • Patent number: 6008284
    Abstract: A fast curing alkoxy-functional room temperature vulcanizing (RTV) composition which is curable in the presence of moisture comprising polymers comprising on average at least 1.2 alkoxysilyl chain terminations per molecule, a tetraalkoxytitanium compound, a filler, and an alkoxysilane, each component being added in amounts to satisfy defined molar ratios.
    Type: Grant
    Filed: December 23, 1997
    Date of Patent: December 28, 1999
    Assignee: Dow Corning Corporation
    Inventors: Kimberly Kay Nylund, Richard Alan Palmer
  • Patent number: 6005060
    Abstract: The present invention provides an epoxy resin composition which can provide a cured composite product having a high heat resistance, and an excellent mechanical strength at a high temperature.The present invention provides an epoxy resin composition comprising, as essential components: (a) an epoxy resin; (b) a curing agent for epoxy resins, (c) a silane compound having at least one epoxy group or a group being capable of reacting by addition to an epoxy group in a molecule, and at least two alkoxy groups connected to silicone atom in a molecule, and (d) a catalyst for condensation polymerization of a silane compound, and a cured composite product obtained by curing the composition.
    Type: Grant
    Filed: April 21, 1998
    Date of Patent: December 21, 1999
    Assignee: Shell Oil Company
    Inventors: Yasuyuki Murata, Mitsukazu Ochi, Norio Tohriiwa
  • Patent number: 6005033
    Abstract: Flame retardant compositions comprising a polymer of carbon monoxide, and at least one olefin, and a flame retarding quantity of a melamine compound.
    Type: Grant
    Filed: December 5, 1997
    Date of Patent: December 21, 1999
    Assignee: General Electric Company
    Inventors: Johannes Van Helmond, Gerrit De Wit
  • Patent number: 6005051
    Abstract: Various polymeric compositions, including bicomponent networks and multiblock copolymers, containing polyisobutylene are synthesized by linking a plurality of polyisobutylene polymer chains with siloxane compounds having at least two SiH moieties. Specifically, bicomponent networks are synthesized by linking multifunctional polyisobutylenes, preferably tri-telechelic allyl-terminated polyisobutylenes, with multifunctional linear polysiloxanes, such as di-telechelic linear SiH-terminated polydimethylsiloxane, by hydrosilation. Similarly, multiblock copolymers are synthesized by endlinking difunctional allyl-terminated polyisobutylenes with difunctional SiH-terminated linear polysiloxanes, such as polydimethylsiloxanes, by hydrosilation.
    Type: Grant
    Filed: December 29, 1997
    Date of Patent: December 21, 1999
    Assignee: The University of Akron
    Inventors: Joseph P. Kennedy, Melissa A. Sherman
  • Patent number: 6005029
    Abstract: The present invention comprises an improved organic composite-plated steel plate which is obtained by applying a thermosetting resin to a chromate-coated alloy-plated steel plate and curing this, wherein, various aqueous resin compositions having the form of basic coating film formation components, such as, for example, aqueous vinyl modified epoxy ester resins, or aqueous vinyl modified epoxy ester resin / blocked isocyanate compound-types, or aqueous vinyl modified epoxy ester resin / blocked isocyanate compounds / colloidal silica-types, are used as the thermosetting resin described above.
    Type: Grant
    Filed: February 10, 1997
    Date of Patent: December 21, 1999
    Assignees: Dainippon Ink and Chemicals, Inc., Nippon Steel Corporation
    Inventors: Shin'ichi Kuwamura, Atsushi Miyagaki, Kiyoshi Ohnishi, Masahide Amemoto, Hisao Odashima, Keitaro Shibata, Akihiro Kasuya, Kiyoshi Ohmori