Patents Examined by Melvyn I. Marquis
  • Patent number: 5863988
    Abstract: An adhesive for electronic parts, which can be used for bonding and cured at a relatively low temperature and has sufficient heat resistance and reliability, and an adhesive tape for electronic parts, for which the above adhesive is adapted, the adhesive being a liquid adhesive obtained by dissolving an acrylonitrile-butadiene copolymer as Component (a), a phenolic resin as Component (b), a compound having at least 2 maleimide groups as Component (c) and a diamine compound of the general formula (1) specified in claim 1, and/or a polysiloxane compound terminating with an amino group at each terminal, having a weight average molecular weight of 200 to 7,000 and having the general formula specified in claim 1, as Component (d) in an organic solvent, and in which the total amount of Components (b), (c) and (d) per 100 parts by weight of Component (a) is 10 to 900 parts by weight, the amount of Component (b) based on the total amount of Components (b), (c) and (d) is 10 to 90% by weight, and the amount of amino g
    Type: Grant
    Filed: December 18, 1996
    Date of Patent: January 26, 1999
    Assignee: Tomoegawa Paper Co., Ltd.
    Inventors: Takeshi Hashimoto, Katuji Nakaba, Jun Tochihira
  • Patent number: 5863969
    Abstract: The present invention provides novel vinyl containing organopolysiloxane elastomers which possess excellent low compression set and heat aging characteristics and which can advantageously be formulated into liquid silicone elastomer moldable compositions.
    Type: Grant
    Filed: October 20, 1997
    Date of Patent: January 26, 1999
    Assignee: General Electric Company
    Inventors: Brian J. Ward, Edward M. Jeram, Richard A. Striker
  • Patent number: 5861458
    Abstract: What is discussed herein is a silicone water-based emulsion mold release agent characterized by the fact that its principal ingredient is the condensation reaction product of a diorganopolysiloxane having the general formula ##STR1##
    Type: Grant
    Filed: July 1, 1996
    Date of Patent: January 19, 1999
    Assignee: Dow Corning Toray Silicone Co., LTD.
    Inventors: Tsutomu Naganawa, Hiroki Ishikawa, Isao Ona
  • Patent number: 5861451
    Abstract: This invention relates to sprayable aqueous silicone emulsions which form silicone elastomers upon the removal of water having improved smoke and fire resistant properties. The aqueous silicone emulsion comprises water, a product of a diorganosiloxane polymer and a crosslinker, a surfactant and a filler selected from the group consisting of aluminum trihydrate, fumed titanium dioxide, magnesium oxide, ceramic fillers and zinc borate. The silicone emulsion has a viscosity of 10,000 to 120,000 mPa s and exhibits pseudo plastic rheology which facilitates its application by spraying. A softening agent may also be added for modulus control.
    Type: Grant
    Filed: October 31, 1996
    Date of Patent: January 19, 1999
    Assignee: Dow Corning Corporation
    Inventors: Robert Mark Schroeder, Arthur James Tselepis, Andreas Thomas Franz Wolf
  • Patent number: 5861469
    Abstract: Photoluminescent bicyclic polydisilacyclobutanes are made by reacting a dialkenyldihalocarbosilane with an organolithium reagent in the presence of a solvent at 0.degree.-25.degree. C.
    Type: Grant
    Filed: June 17, 1997
    Date of Patent: January 19, 1999
    Assignee: Dow Corning Corporation
    Inventors: Norbert Auner, Udo C. Pernisz
  • Patent number: 5861450
    Abstract: An additive to improve the hydrophobicity of a thermoplastic resin wherein the additive is at least 0.3 parts by weight of a thermoplastic silicone blend, said thermoplastic silicone blend having:(A) an organosilicone resin of the empirical formula(R.sub.3 Sio.sub.1/2)a (R.sub.2 SiO.sub.2/2)b (RSiO.sub.3/2)c( SiO.sub.4/2) dwherein: a and d are positive numerical values and b and c are zero or positive numerical values with the provisos that a+b+c+d=1, 0.ltoreq.(b+c).ltoreq.0.2 and the ratio of a:(b+c+d) is between about 0.3 and 1.0; and R is a monovalent radical independently selected from the group consisting of hydrogen, hydroxyl, alkyl, alkenyl, alkoxy, oximo, aryl, epoxide, carboxyl, ether, polyether, amide and alkyl amino radicals, which R groups may be the same or different, with the proviso that at least sixty mole percent of said R radicals are methyl; and(B) a predominantly linear silicone fluid having the empirical formula(R'.sub.3 SiO.sub.1/2)x (R'.sub.2 SiO.sub.2/2)y (R'SiO.sub.
    Type: Grant
    Filed: August 28, 1996
    Date of Patent: January 19, 1999
    Assignee: Dow Corning Corporation
    Inventors: Wei Chen, Kevin Edward Lupton, David Joseph Romenesko, Randall Gene Schmidt, Hongxi Zhang
  • Patent number: 5861448
    Abstract: A platinum curing organosiloxane composition having improved hysteresis characteristics when cured. The composition requires the presence of a diorganovinylsiloxy terminated polydiorganosiloxane having a viscosity within a range of about 20 Pa.multidot.s to 200 Pa.multidot.s at 25.degree. C. and containing essentially no ethylenically unsaturated hydrocarbon radicals bonded to non-terminal silicon atoms and a diorganovinylsiloxy terminated polydiorganosiloxane having a viscosity within a range of about 0.1 Pa.multidot.s to 200 Pa.multidot.s at 25.degree. C., where from 1 to 5 percent of the non-terminal repeating units of the siloxane comprise a vinyl radical. In addition, the present composition comprises 10 to 30 weight percent of a reinforcing silica filler that has been treated with hexamethyldisilazane and 1,1,3,3-tetramethyl-1,3-divinyldisilazane, and an organohydrogensiloxane resin crosslinker comprising greater than 5 silicon-bonded hydrogen atoms per molecule.
    Type: Grant
    Filed: January 31, 1997
    Date of Patent: January 19, 1999
    Assignee: Dow Corning Corporation
    Inventors: Phillip Joseph Griffith, Chu Yat Ho, Diane Marie Kosal
  • Patent number: 5859165
    Abstract: The invention comprises a curable composition comprising:(i) a blocked reactive component wherein the blocked reactive component is a blocked isocyanate or a blocked isothiocyanate;(ii) a functional compound reactive with the blocked reactive component, the functional compound containing reactive hydrogen;(iii) a catalyst for promoting the reaction of the reactive component with the blocked functional compound, wherein said catalyst is based on the reaction product of manganese, cobalt, nickel, copper, zinc, germanium, antimony, or bismuth, or the oxides thereof with a mercaptan, or an organic acid, wherein said organic acid is hexanoic, oxalic, adipic, lactic, tartaric, salicylic, thioglycolic, succinic, or mercapto succinic acid, or the reaction product of copper or germanium, or the oxides thereof with a lower aliphatic acid.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: January 12, 1999
    Assignee: Elf Atochem North America, Inc.
    Inventors: Emily C. Bossert, Kevin Cannon, William D. Honnick, Wayne Ranbom
  • Patent number: 5858493
    Abstract: A tapered pole for supporting electric power lines, telephone lines, or an electric lamp which includes two tapered plastic, generally rigid sleeves positioned concentric to a longitudinal axis with the space between the sleeves being filled with a plurality of longitudinal generally continuous filaments encased in a solid plastic material; and a method of preparing such a pole by pushing or pulling the inside sleeve into an outside sleeve while filling the space between the sleeves with a liquid plastic material with reinforcing fibers or filaments being positioned into the space as movement occurs and the liquid plastic fills that space. The fibers are generally continuous and the per inch distribution between the ends of the pole are generally equal. End caps seal the ends against the weather elements.
    Type: Grant
    Filed: September 16, 1996
    Date of Patent: January 12, 1999
    Inventor: Hartley Sandt
  • Patent number: 5859105
    Abstract: Described is an organosilicon-containing composition suitable for use as an adhesive and capable of rapid curing at low temperature. The composition comprises about 10 to 80 wt. % of an organic compound component and about 20 to 90 wt. % of one of boron nitride or silver. The organic compound component comprises the reaction product of about 40 to 90 wt. % of the reaction product of cyclic olefin and cyclic siloxane and about 10 to 60 wt. % rubber in liquid form.
    Type: Grant
    Filed: February 11, 1997
    Date of Patent: January 12, 1999
    Assignee: Johnson Matthey, Inc.
    Inventor: My N. Nguyen
  • Patent number: 5859161
    Abstract: The present invention relates to a series of novel silicone phosphate esters which mitigate eye and skin irritation when used in synergistic combinations with fatty alcohol sulfates and fatty alcohol ether sulfates. These materials form complexes which have surprisingly low irritation properties.
    Type: Grant
    Filed: December 6, 1993
    Date of Patent: January 12, 1999
    Assignees: Phoenix Chemical, Lambent Technologics Inc
    Inventors: John Imperante, Anthony J. O'Lenick, Jr.
  • Patent number: 5858917
    Abstract: An image-receiving sheet for thermal transfer printing, comprises a substrate and a receptor layer provided on at least one surface of the substrate. The receptor layer is formed by applying a receptor layer forming composition comprising (a) at least one kind of thermoplastic resin and (b) at least one kind of release agent selected from silicone compounds expressed by the following formula (1):R.sub.1 --Si--(NCO).sub.4-1 (1)?in the formula (1), "1" indicates an integer of from 0 to 3, and "R" indicates an alkyl group, an aryl group or a vinyl group!,to the at least one surface of the substrate, and drying the thus applied composition by heat.
    Type: Grant
    Filed: February 12, 1997
    Date of Patent: January 12, 1999
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Masayasu Yamazaki, Satoru Kawai, Kenichiro Suto, Hitoshi Saito
  • Patent number: 5859094
    Abstract: A platinum group-metal curing liquid silicone rubber compositions having improved physical properties such as tear and heat-aging, especially at durometers below about 35 and above about 65. The present inventors have unexpectedly discovered that the addition of diorganohydrogensiloxy end-blocked polydiorganosiloxanes and triorganosiloxy end-blocked polydiorganosiloxanes having a viscosity greater than about 10 Pa.cndot.s at 25.degree. C. to liquid silicone rubber compositions can provide for the described improved properties.
    Type: Grant
    Filed: September 3, 1996
    Date of Patent: January 12, 1999
    Assignee: Dow Corning Corporation
    Inventors: Lori Jean Conway, Phillip Joseph Griffith, Jary David Jensen, Peter Lamont
  • Patent number: 5858534
    Abstract: A solid phase magnetic support having a hydrophilic surface, a method of making the support, and a method of using the support for peptide synthesis are provided. The solid phase magnetic support is synthesized from a starting material which is a magnetic polystyrene polymer bead which has a plurality of polystyrene coated metal oxide particles randomly distributed in a polystyrene matrix having chloromethyl groups. Hydrophilic long chain hydrocarbon spacer arms, such as polyalkylene diamine molecules are coupled with sonication to the chloromethyl groups. Each spacer arm is provided with a terminal amine for linking to a first amino acid. Preferably, the terminal amine on the spacer arm is provided by a low molecular weight linker molecule which can be acid cleaved from the spacer arm. However, the spacer arm may be derivatized and linked to a first amino acid which cannot be acid cleaved from the spacer arm.
    Type: Grant
    Filed: September 4, 1996
    Date of Patent: January 12, 1999
    Assignee: Solid Phase Sciences Corp.
    Inventor: Irving Sucholeiki
  • Patent number: 5858541
    Abstract: A glass composite material comprising a polymer chain selected from the group consisting of polysilane, polygermane, polystannane and a copolymer thereof, and a network structure of a metal oxide consisting of a metal atom bonded to the other metal atom through an oxygen atom, wherein the polymer chain is chemically crosslinked with a glass matrix of the network structure of the metal oxide directly or indirectly, and a volume resistivity measured by setting a ratio of a voltage to a film thickness at 10.sup.6 V/cm according to a disc plate electrode method is not more than 3.times.10.sup.6 .OMEGA.cm.
    Type: Grant
    Filed: October 3, 1997
    Date of Patent: January 12, 1999
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Toshiro Hiraoka, Yutaka Majima, Kenji Todori, Julian R. Koe, Yoshihiko Nakano, Shinji Murai, Shuzi Hayase
  • Patent number: 5858544
    Abstract: The present invention relates to coating compositions, systems and methods for coating substrates and, more particularly, metallic substrates with spherosiloxane based coating compositions. The spherosiloxane based compositions are applied utilizing conventional techniques such as chemical vapor deposition such that upon application, the spherosiloxane molecules bond with available oxide molecules provided along the substrate.
    Type: Grant
    Filed: December 15, 1995
    Date of Patent: January 12, 1999
    Inventors: Mark M. Banaszak Holl, Clyde L. Briant, III, Sunghee Lee
  • Patent number: 5858599
    Abstract: An anti-offsetting oil including an organopolysiloxane having the formula (1) below and containing low molecular weight organopolysiloxanes having a molecular weight of 3,000 or less in a content of 50 ppm or less. ##STR1## wherein R.sub.f 's represent a perfluoroalkyl which may contain at least one ether linkage; R's represent a monovalent hydrocarbon group; Y's represent a divalent organic group having 2 to 5 carbon atoms; a represents an integer of 1 or more and b represents an integer of 0 or more, provided that a and b satisfy 3a+3b+2=15 to 4,000; and c and d are an integer of 0 to 3. This fluid has a good wettability to silicone rubber or fluorine forming the surfaces of fixing rolls of electrophotographic copying machines, and hence can effectively prevent offset. Since it contains no low-molecular weight organopolysiloxanes, the electric-contact failure may hardly occur.
    Type: Grant
    Filed: November 6, 1997
    Date of Patent: January 12, 1999
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Hiromasa Yamaguchi, Hirofumi Kishita
  • Patent number: 5856390
    Abstract: A coating for reducing brake pad noise is provided that includes about 40 to about 90% by weight of a phenolic thermal setting resin, about 1 to about 40% by weight of graphite, about 1 to about 40% by weight of molybdenum disulfide, and, 0 to about 40% by weight of fillers and pigments. The coating is applied to a brake pad and cured. A method for reducing brake noise is also provided which includes the steps of coating a brake pad surface with a coating including about 40 to about 90% by weight of a phenolic thermal setting resin, about 1 to about 40% by weight of graphite, about 1 to about 40% by weight of molybdenum disulfide, and 0 to about 40% by weight of fillers and pigments, and curing the coating.
    Type: Grant
    Filed: September 3, 1996
    Date of Patent: January 5, 1999
    Assignee: Performance Friction Corporation
    Inventors: Dennis Alan Gaylor, Donald L. Burgoon
  • Patent number: 5854342
    Abstract: A water-borne fluoroelastomer coating composition comprising an aqueous dispersion of a fluoroelastomer polymer; from about 0.1 to about 10 parts by weight of an amino/polyamino-siloxane curative per 100 parts by weight of the polymer; and, from 0 to about 40 parts by weight of an additive filler, per 100 parts by weight of the polymer, wherein there is sufficient water to provide a coating composition having a solids content of from about 10 to about 80 percent by weight. A method of coating a substrate with the fluoroelastomer coating composition of the present invention is also provided. Cured fluoroelastomer films, cured with amino/polyamino-siloxane curatives are also provided.
    Type: Grant
    Filed: December 24, 1996
    Date of Patent: December 29, 1998
    Assignee: Lauren International, Inc.
    Inventors: Pavel Kirochko, James G. Kreiner
  • Patent number: 5854328
    Abstract: A composition for making an elongated molded product which can be satisfactorily used without having to be painted. The composition comprises an elastomer comprising crystalline polypropylene and ethylene-.alpha.-olefin rubber (EOR), and 0 to 15 phr of talc. The polypropylene (PP) and EOR have a blending ratio (PP/EOR) by weight of 35/65 to 67/33. The polypropylene has a Q value (M.sub.w /M.sub.n).gtoreq.10 and a melt flow rate of 50 to 120. The EOR has an .alpha.-olefin content of 10 to 20% by weight. The proportion Y of talc and the proportion X of the EOR in the elastomer satisfy the relation:Y.gtoreq.-0.63X+34.
    Type: Grant
    Filed: July 22, 1996
    Date of Patent: December 29, 1998
    Assignee: Toyoda Gosei Co., Ltd.
    Inventors: Junji Koizumi, Haruyasu Mizutani, Yoshiaki Shichida