Patents Examined by R. Dean, Jr.
  • Patent number: 5204432
    Abstract: A silicone resin fine powder containing a quaternary ammonium group-containing organofunctional group and having excellent physiological activity, hydrophilicity and polarity, which comprises units represented by RSiO.sub.3/2 wherein R represents a substituted or unsubstituted monovalent hydrocarbon group, and additionally at least one of units represented by SiO.sub.2 and units represented by RSiO wherein R is the same as defined above.
    Type: Grant
    Filed: April 19, 1989
    Date of Patent: April 20, 1993
    Assignee: Toshiba Silicone Co., Ltd.
    Inventors: Kenji Saito, Hiroshi Kimura
  • Patent number: 5155198
    Abstract: A primer composition which contains a diluent and a film forming binder wherein the film forming binder contains a siloxane condensation catalyst, an amine hardner, a silane coupling agent and the reaction product of a polydiorganosiloxane having a reactive end group and an epoxy functional phosphate ester compound. The composition is useable as a primer on aluminum substrate.
    Type: Grant
    Filed: June 14, 1991
    Date of Patent: October 13, 1992
    Assignee: Cape Cod Research
    Inventor: Francis L. Keohan
  • Patent number: 5149764
    Abstract: Polymer-ceramic networks in which the polymer chain is anchored in a cera network are formed from compounds of the formula ##STR1## where X is R', OR', OH, H, Cl, or Br,X is R', OR', Cl, or Br,R' is an alkyl group having 1 to 8 carbon atoms, andR is selected from the group consisting of phenyl and a phenyl-substituted benzoxazole group,or oligomers thereof. Methods of forming the monomer, oligomer, and polymer are disclosed. Related phthalocyanine polymers are also disclosed.
    Type: Grant
    Filed: April 10, 1990
    Date of Patent: September 22, 1992
    Assignee: United States of America as represented by the Secretary of the Navy
    Inventors: Kreisler S. Y. Lau, Abraham L. Landis, Thomas K. Dougherty
  • Patent number: 5147947
    Abstract: A polyorganosiloxane series thermoplastic resin comprising a graft copolymer obtained from a vinyl monomer and a modified polyorganosiloxane, and a thermoplastic resin composition containing the same. The resin and the composition thereof have excellent slidability, abrasion resistance, weather resistance, cold resistance and impact resistance, and can be applied to new fields such as sliding parts, parts for cold district, outdoor parts, etc.
    Type: Grant
    Filed: October 31, 1989
    Date of Patent: September 15, 1992
    Assignees: Japan Synthetic Rubber Co., Ltd., Toshiba Silicone Co., Ltd.
    Inventors: Yuji Yamamoto, Takashi Kurata, Kazuyoshi Nakazawa, Yusuke Tsuda, Junichiro Watanabe, Makoto Matsumoto, Akitsugu Kurita, Yuichi Funahashi
  • Patent number: 5143986
    Abstract: Mixtures containing aromatic polyether ketones based on diphenols corresponding to formula (I) ##STR1## in which R.sup.1 and R.sup.2 independently of one another represent hydrogen, halogen, C.sub.1-8 alkyl, C.sub.5-6 cycloalkyl, C.sub.6-10 aryl and C.sub.7-12 aralkyl,m is an integer of from 4 to 7,R.sup.3 and R.sup.4 may be individually selected for each X and independently of one another represent hydrogen or C.sub.1-5 alkyl andX represents carbon, with the proviso that, at at least one atom X, R.sup.3 and R.sup.4 are both alkyl,and other organic polymers and films of these polymer mixtures.
    Type: Grant
    Filed: October 17, 1989
    Date of Patent: September 1, 1992
    Assignee: Bayer Aktiengesellschaft
    Inventors: Knud Reuter, Gunter Weymans, Rolf Dhein, Erich Meier
  • Patent number: 5141991
    Abstract: A process for preparing a fluororubber graft copolymer, comprising the step of graft-copolymerizing, onto (A) a fluororubber, (B) at least one organosilicon compound having the general formula (I): ##STR1## wherein R.sup.3 represents a monovalent unsaturated aliphatic hydrocarbon group; and R.sup.N represents as nitrogen-containing organic group having the general formula (II): ##STR2## or the general formula (III): ##STR3## where R.sup.4 and R.sup.5 each represent a hydrogen atom or a C.sub.1 -C.sub.15 organic group, and l is an integer of from 0 to 6, R.sup.6 and R.sup.7 have the same meaning as R.sup.3 and R.sup.4 or may form together a divalent hydrocarbon group represented by the formula:--(CH.sub.2).sub.k --where k represents an integer of 4 to 9, n represents an integer of 1 to 3, and m is an integer of from 0 to 10. The fluororubber graft copolymer has good workability in roll milling, and is vulcanizable under normal pressure.
    Type: Grant
    Filed: June 6, 1990
    Date of Patent: August 25, 1992
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Hiroki Konno, Yasushi Yamamoto, Shigehisa Sonegawa
  • Patent number: 5140064
    Abstract: A thermoplastic resin composition superior in heat stability and impact resistance, which comprises 95-5% by weight of a thermoplastic polymer (A) selected from homopolymers and copolymers of ethylenic unsaturated monomers or from polymers of bifunctionally reactive compounds and 5-95% by weight of a compound-rubber-based graft copolymer which is produced by the graft polymerization of one or more vinyl monomers onto compound rubber particles having an average diameter of 0.08-0.6 .mu.m and structures in which 10-90% by weight of a polyorganosiloxane rubber component and 90-10% by weight of a polyalkyl(meth)acrylate rubber component are tangled together so as not to be separable from each other.
    Type: Grant
    Filed: March 26, 1991
    Date of Patent: August 18, 1992
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Isao Sasaki, Naoki Yamamoto, Akira Yanagase
  • Patent number: 5137949
    Abstract: A thermoplastic molding composition is disclosed comprising a polydiorganosiloxane-polycarbonate block cocondensate and 0.5% to 15% by weight of a particular hydroxy benzotriazole. The composition is characterized by its improved protection against UV light.
    Type: Grant
    Filed: October 26, 1990
    Date of Patent: August 11, 1992
    Assignee: Bayer Aktiengesellschaft
    Inventors: Winfried Paul, Hans-Josef Buysch, Wolfgang Nising, Thomas Scholl
  • Patent number: 5138012
    Abstract: Organopolysiloxane for use in release coating compositions are modified to control release values by substitution with phenolic compounds.
    Type: Grant
    Filed: May 18, 1990
    Date of Patent: August 11, 1992
    Assignee: General Electric Company
    Inventors: Karen D. Riding, Judith Stein, Richard P. Eckberg, James L. Desorcie, Tracey M. Leonard
  • Patent number: 5132359
    Abstract: A vinyl chloride resin composition having excellent impact resistance even at a low temperature and good weather resistance is disclosed. Such vinyl chloride resin composition comprises:(A) a vinyl chloride resin, and(B) a compound rubber type graft copolymerwherein one or more vinyl monomers are graft-polymerized onto a compound rubber that has an average particle diameter of 0.08 to 0.6 .mu.m and possesses such a structure that 1 to 10 wt. % of a polyorganosiloxane rubber component and 90 to 99 wt. % of a polyalkyl (meth)acrylate rubber component are entangled in an inseparable fashion, and the total amount of the polyorganosiloxane rubber component and the polyalkyl (meth)acrylate rubber component is 100 wt. %.
    Type: Grant
    Filed: July 13, 1990
    Date of Patent: July 21, 1992
    Assignee: Mitsubishi Rayon Company, Ltd.
    Inventors: Isao Sasaki, Naoki Yamamoto, Akira Yanagase
  • Patent number: 5130396
    Abstract: Spherical, polymeric organosiloxane ammonium compounds are disclosed with a silica-like skeleton consisting of: ##STR1## units in which R.sup.1 and R.sup.2 stand for a group ##STR2## in which R.sup.5 is alkylene the oxygen atoms are saturated by silicon atoms of other groups (II) with the optional inclusion of cross-linking agents, R.sup.3 has the meaning of R.sup.1 and R.sup.2 or stands for hydrogen, alkyl, cycloalkyl or benzyl, R.sup.4 is hydrogen or alkyl, cycloalkyl, benzyl, allyl, propargyl, chloroethyl, hydroxyethyl or chloropropyl, X stands for a monovalent to trivalent anion of a protonic acid which forms stable salts with amine bases and x can be a number from 1 to 3.
    Type: Grant
    Filed: December 19, 1990
    Date of Patent: July 14, 1992
    Assignee: Degussa Aktiengesellschaft
    Inventors: Peter Panster, Peter Kleinschmit
  • Patent number: 5128408
    Abstract: A gas-permeable material with excellent compatibility with blood comprising polyurethane, polyurethaneurea, or the derivatives thereof is provided. The polyurethane or polyurethaneurea is obtained from a composition that comprises diisocyanate; polysiloxane containing terminal hydroxyl groups; and polyol or polyamine containing at least one tertiary amino gorup. The derivatives of the polyurethane or polyurethaneurea is obtained by the following steps of: converting the tertiary amino groups contained in the polyurethane or the polyurethaneurea to quarternary ammonium groups, and treating the polyurethane or the polyurethaneurea having quarternary ammonium groups with heparin.
    Type: Grant
    Filed: October 31, 1990
    Date of Patent: July 7, 1992
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Masakazu Tanaka, Satoru Murata, Susumu Kashiwabara, Ken Murayama
  • Patent number: 5128431
    Abstract: There is provided a curable composition, comprising:A. a heterocyclic compound selected from the group consisting of epoxy-functional silicones, epoxy-functional acrylic polymers, and monomers selected from the group consisting of tetrahydrofurans, oxetanes, lactones, spirocarbonates, spiroesters, cyclic sulfur and cyclic nitrogen compounds;B. an Si-H functional silicon compound; andC. a platinum catalyst.There is further provided a method for polymerizing a heterocyclic compound using a platinum catalyst.
    Type: Grant
    Filed: February 2, 1990
    Date of Patent: July 7, 1992
    Assignee: General Electric Company
    Inventors: Karen D. Riding, James V. Crivello, Julia L. Lee
  • Patent number: 5126403
    Abstract: A curable polydiorganosiloxane is reinforced by mixing with a solution of polyvinylalcohol (PVA) or a modified PVA. The polydiorganosiloxane is then cured and the solvent is extracted to yield a cured polydiorganosiloxane reinforced with PVA.
    Type: Grant
    Filed: December 17, 1990
    Date of Patent: June 30, 1992
    Assignee: Dow Corning Corporation
    Inventors: Daniel Graiver, Nedeljko V. Gvozdic
  • Patent number: 5126400
    Abstract: A curable polydiorganosiloxane is reinforced by mixing with a modified polyvinylalcohol (PVA). Fully hydrolyzed PVA is modified by dissolving or swelling in solvent, then adding a silylating agent of the formula R".sub.b (R'.sub.2 SiO).sub.n SiR.sub.a X.sub.4-a where R is a group capable of undergoing hydrolysis to form a siloxane bond with the curable polydiorganosiloxane, R' is a monovalent alkyl or aryl radical having from 1 to 6 carbon atoms, optionally halogen substituted, and compatible with the curable polydiorganosiloxane, R" is either R or R', X is a radical reactive with the hydroxyl on the PVA, a and b are integers of 0 to 3 inclusive, the sum of a plus b is from 1 to 3 inclusive, and n is from 0 to 35. This modified PVA is then mixed with the curable polydiorganosiloxane. The polydiorganosiloxane is then cured and the solvent is extracted to yield a cured polydiorganosiloxane reinforced with polyvinylalcohol.
    Type: Grant
    Filed: July 30, 1990
    Date of Patent: June 30, 1992
    Assignee: Dow Corning Corporation
    Inventors: Daniel Graiver, Nedeljko V. Gvozdic
  • Patent number: 5124210
    Abstract: The present invention relates to an article (e.g., of wood) coated with a one-part, mositure-curable, urethane composition. The composition comprises trisocyanate prepolymer, an epoxy silane, and compatible solvent.
    Type: Grant
    Filed: November 1, 1990
    Date of Patent: June 23, 1992
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: James J. J. Fong
  • Patent number: 5124375
    Abstract: A novel organosilicon prepolymer, which is the partial reaction product of (a) a cyclic polysiloxane or a tetrahedral siloxysilane containing at least two hydrosilane groups and (b) a polycyclic polyene having in its rings at least two chemically distinguishable carbon-carbon double bonds, wherein the ratio of carbon-carbon double bonds in the rings of (b) to hydrosilane groups in (a) is greater than 0.5:1 and up to 1.8:1, and at least one of the compounds (a) and (b) has more than two reactive sites, a method for making the organosilicon prepolymer, and a method for preparing an organosilicon polymer therefrom, are disclosed.
    Type: Grant
    Filed: January 5, 1990
    Date of Patent: June 23, 1992
    Assignee: Hercules Incorporated
    Inventor: Raymond T. Leibfried
  • Patent number: 5124423
    Abstract: Novel thermoset and thermoplastic organosilicon polymers, comprised substantially of alternating polycyclic hydrocarbon residues and cyclic polysiloxane or tetrahedral siloxysilane residues linked through carbon-silicon bonds, are disclosed.
    Type: Grant
    Filed: January 5, 1990
    Date of Patent: June 23, 1992
    Assignee: Hercules Incorporated
    Inventor: Raymond T. Leibfried
  • Patent number: 5120813
    Abstract: Polymeric materials are provided characterized by hard segments and copolymer soft blocks comprising hydrophobic and hydrophilic components. The polymeric materials may be mixed with a base polymer and/or inorganic salts. The polymeric materials and mixtures containing same are characterized by improved moisture vapor transmission rates. The polymeric materials may be formed into films for use as wound dressings, burn dressings, surgical drapes, semipermeable membranes, and coatings for textiles.
    Type: Grant
    Filed: January 4, 1991
    Date of Patent: June 9, 1992
    Assignee: Th. Goldschmidt AG
    Inventor: Robert S. Ward, Jr.
  • Patent number: 5118738
    Abstract: The specification describes and claims filled compositions, e.g. moisture curable sealant compositions which comprise 100 parts by weight of polymeric material comprising a mixture and/or a reaction product of a polydiorganosiloxane having silicon-bonded hydroxyl groups with a compound containing silicon-bonded alkoxy or alkoxyalkoxy groups, 50 to 200 parts by weight of finely divided filler and an additive which is a reaction product of an organic amine, an oxide, hydroxide, carbonate, bicarbonate or a mixture thereof with a sulphonic acid of the formula RSO.sub.3 H in which R represents a hydrocarbon group which may be halogenated. The additive is preferably a reaction product of the sulphonic acid and an oxide, hydroxide, carbonate or bicarbonate of magnesium, or calcium and the acid is preferably one in which R represents a group R'C.sub.6 H.sub.4 wherein R' represents an alkyl group having 6 to 18 carbon atoms, for example dodecylbenzenesulphonic acid.
    Type: Grant
    Filed: April 20, 1990
    Date of Patent: June 2, 1992
    Assignee: Dow Corning S.A.
    Inventors: Michelle M. N. C. Berthet, Brian R. Trego, Hans-Juergen Wessely