Mixed With Silicon-containing Reactant Or Polymer Derived Therefrom Patents (Class 525/446)
  • Patent number: 5530075
    Abstract: The instant invention pertains to a curable resin composition comprised of A) 100 parts by weight curable resin, and B) 0.1-500 parts by weight of an organopolysiloxane having organic groups that contain epoxy groups, which is expressed by the formula: ##STR1## wherein R.sup.1 is a univalent hydrocarbon group excluding alkenyl groups, R.sup.2 is a hydrogen atom or a univalent hydrocarbon group excluding alkenyl groups, R.sup.3 is an alkoxysilylalkyl group or an organic group that contains epoxy groups, a is 0 or a positive integer, b is a positive integer and c is a positive integer, where a/c has the value of 0 to 4, b/c has the value of 0.05 to 4 and (a+b)/c has the value of 0.2 to 4. The curable resin composition of the instant invention has superior flowability that produces a hardened resin with superior flexibility and adhesion.
    Type: Grant
    Filed: August 15, 1994
    Date of Patent: June 25, 1996
    Assignee: Dow Corning Toray Silicone Co., Ltd.
    Inventors: Yoshitsugu Morita, Noriyasu Yokoyama
  • Patent number: 5508323
    Abstract: A free-flowing silicone polymer powder, having an average particle size of 1 to 1000 microns and prepared by mixing a polydiorganosiloxane with a silica filler, is uniformly dispersed in an organic resin using conventional equipment, such as a single screw or, preferably, a twin screw extruder. When employed at a concentration of about 0.5 to 25 parts by weight of powder per 100 parts by weight of resin, a significant improvement in the burn character of the modified resin is obtained such that the rate of heat release, generation of smoke and evolution of toxic carbon monoxide gas is significantly reduced relative to the unmodified resin.
    Type: Grant
    Filed: October 11, 1994
    Date of Patent: April 16, 1996
    Assignee: Dow Corning Corporation
    Inventors: David J. Romenesko, Robert R. Buch
  • Patent number: 5508358
    Abstract: Disclosed are a polyester-silicone copolymer which comprises a polyester part containing naphthalene rings and a dimethylpolysiloxane part and has a glass transition temperature of at least 60.degree. C., and a coating composition containing as a main component the aforesaid polyester-silicone copolymer.
    Type: Grant
    Filed: January 26, 1995
    Date of Patent: April 16, 1996
    Assignee: Shin-Etsu Chemical Co., Inc.
    Inventors: Ichiro Ono, Shinji Miyadai
  • Patent number: 5506302
    Abstract: An organopolysiloxane composition contains (A) a both end hydroxyl-blocked diorganopoly-siloxane, (B) a hydroxyl-free diorganopoly-siloxane having a degree of polymerization equal to or greater than that of (A), (C) an organo-hydrogenpolysiloxane having at least three hydrogen atoms in a molecule, (D) an organosilane containing at least two alkoxy groups and an amino group attached to a silicon atom through an alkylene group in a molecule and/or a partial hydrolyzate thereof, (E) a fatty acid metal salt, (F) polycarbonate powder having a mean particle size of up to 50 .mu.m, and optionally (G) an organo-silane containing at least two alkoxy groups and a mercapto group attached to a silicon atom through an alkylene group in a molecule and/or a partial hydrolyzate thereof. It is applied to a rubber substrate to form a wear resistance coating thereon.
    Type: Grant
    Filed: June 21, 1995
    Date of Patent: April 9, 1996
    Assignee: Shin-Etsu Chemical Co., Inc.
    Inventors: Mikio Shiono, Kazumi Okada, Hironao Fujiki
  • Patent number: 5502119
    Abstract: A polyester-polycarbonate composition comprising (A) at least one polyester prepared by the reaction of at least one alkanediol with at least one dicarboxylic acid or dialkyl ester thereof in the presence of a metallic catalyst, (B) at least one polycarbonate, (C) at least one organosilicate, the organosilicate being present in an amount effective to inhibit ester-carbonate interchange in the composition, optionally, (D) an organic or inorganic colorant, (E) an impact modifier, and (F) a stabilizer. A method for stabilizing polyester-polycarbonate compositions against ester-carbonate interchange is also provided.
    Type: Grant
    Filed: February 28, 1995
    Date of Patent: March 26, 1996
    Assignee: General Electric Company
    Inventor: Douglas G. Hamilton
  • Patent number: 5488086
    Abstract: A polycarbonate resin composition which is superior in impact resistance, fluidity, solvent resistance, wear resistance and sliding characteristics. The polycarbonate resin composition comprises (A) a mixture of polycarbonate (PC) and a polycarbonate-polydimethylsiloxane (PC-PDMS) copolymer and (B) at least one of (i) a thermoplastic resin such as a thermoplastic crystalline resin or a thermoplastic amorphous resin and (ii) a rubber elastomer.
    Type: Grant
    Filed: March 10, 1994
    Date of Patent: January 30, 1996
    Assignee: Idemitsu Petrochemical Co., Ltd.
    Inventors: Takashi Umeda, Masaya Okamoto
  • Patent number: 5472818
    Abstract: Spherical resin particles having a sharp particle size distribution and a method for producing such particles are disclosed. Resin particles according to this invention contain at least a polyester polymer and a polymer formed from a polymerizable monomer, and have an average diameter (D) of 1 to 500 .mu.m. At least 70% by weight of the particles have a diameter in the range of 0.5 D to 2.0 D. Such resin particles can be produced by swelling polyester-containing seed particles with a polymerizable monomer and then polymerizing the polymerizable monomer in swelled seed particles.
    Type: Grant
    Filed: October 6, 1994
    Date of Patent: December 5, 1995
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Yasunari Hotta, Satoshi Maeda, Yozo Yamada, Shinichiro Mori, Toshio Tanaka, Koji Tanaka, Hiroshi Ono
  • Patent number: 5459198
    Abstract: Fluoroinfused composites exhibiting low surface energy and low kinetic coefficent of energy are prepared via contact of a swellable polymeric material with a solution comprising a swelling solvent, an organofluorosilane and a gelling agent.
    Type: Grant
    Filed: July 29, 1994
    Date of Patent: October 17, 1995
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Kenneth G. Sharp
  • Patent number: 5457166
    Abstract: A process for preparing a polyester-modified silicone resin comprises mixing an alkoxysilane and/or its hydrolyzate, i.e. an alkoxysiloxane, and a polyester resin having at least two hydroxyl groups in the molecule, and subjecting the mixture to hydrolysis and polycondensation reactions in the presence of an acid catalyst. This process is performed by a continuous one-stage reaction sequence including hydrolysis, polycondensation and modification and is simplified. A composition comprising the polyester-modified silicone resin is also described. The composition comprising organozinc compounds along with the modified silicone resin is significantly improved in heat resistance and color-difference.
    Type: Grant
    Filed: July 21, 1994
    Date of Patent: October 10, 1995
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Yuji Yoshikawa, Tadashi Takahashi, Mitsuhiro Takarada
  • Patent number: 5439747
    Abstract: A coating composition and method for protecting anodized aluminum, and the coated product are disclosed, wherein the coating comprises a crosslinking agent; a film-forming resin selected from the group consisting of polyester polymers, thermosetting acrylic polymers, and mixtures thereof; and an epoxy silane. The combination provides exceptional adhesion of the coating to anodized surfaces as well as good hardness.
    Type: Grant
    Filed: November 22, 1993
    Date of Patent: August 8, 1995
    Assignee: PPG Industries, Inc.
    Inventors: Shelley D. Sturdevant, Edward T. Ryan, Bruce A. Connelly
  • Patent number: 5419929
    Abstract: Thermosetting composition comprises a compound having in the molecule two or more carboxyl groups blocked by a vinyl ether compound, a vinyl thioether compound or a hetero compound having a vinyl type double bond and oxygen or sulfur as the hetero atom, a compound having two or more reactive functional groups which can form a chemical bond with the blocked carboxyl compound by heating, a specific vinyl ether or vinyl thioether and a thermal latent acid catalyst. The blocked carboxyl group of the first compound and the reactive functional group of the second compound may be comprised in the same molecule. The thermosetting composition gives cured products having excellent chemical properties, physical properties, weathering resistance and storage stability and is advantageously utilized for coating compositions, ink, adhesive and molded plastics.
    Type: Grant
    Filed: September 21, 1992
    Date of Patent: May 30, 1995
    Assignee: Nippon Oil and Fats Company, Limited
    Inventors: Masahiro Ishidoya, Kishio Shibato, Keiji Komoto, Kenji Shibamoto, Mitsuyuki Mashita, Osamu Ohe
  • Patent number: 5414056
    Abstract: A polycarbonate pellet having a size between 200 and 1,500 microns, not inclusive, is produced by extruding molten polycarbonate through a die and cutting such extrudate with a die face cutter.
    Type: Grant
    Filed: February 11, 1993
    Date of Patent: May 9, 1995
    Assignee: The Dow Chemical Company
    Inventor: Richard O. Kirk
  • Patent number: 5414054
    Abstract: A thermoplastic copolycarbonate resin having improved low temperature impact strength and a process for the preparation of the resin are disclosed. Accordingly the structure of the copolycarbonate contains(i) units of the formula ##STR1## wherein D is a divalent residue of a dihydroxy compound, and (ii) units of the formula ##STR2## wherein m is 1-90, n is 5-300, R is an alkyl or a phenyl radical p is 2-12 and q is 2-20. The preparation of the copolycarbonate entails reactive blending of polycarbonate with a suitable lactone siloxane copolymer in the presence of a transesterification catalyst.
    Type: Grant
    Filed: June 1, 1994
    Date of Patent: May 9, 1995
    Assignee: Miles Inc.
    Inventors: Erik H. Jonsson, Rick L. Archey, Robert J. Kumpf, Aaron D. Meltzer, Harald Pielartzik, Raymond A. Yourd
  • Patent number: 5412016
    Abstract: Polymeric inorganic-organic compositions are obtained by intimately mixing a hydrolyzable precursor of an inorganic gel of silicon, titanium, or zirconium with an organic polymer and with an organic carboxylic acid having a pK.sub.a value of at most 4.0, present in an amount of at least 2 moles per mole of inorganic component, under conditions such that a homogeneous solution of all three components is initially formed, agitating the solution at 0.degree.-100.degree. C. until gelation of the inorganic component occurs, and recovering the inorganic-organic composition. Water need not be present as an initial reactant. Such compositions often are transparent, always have improved toughness, as compared with inorganic gels alone, and are believed to have a structure in which the organic polymer is entrapped in the inorganic gel in such an intimate manner that these two components cannot be separated from each other by physical means without destruction of the organic polymer.
    Type: Grant
    Filed: September 14, 1993
    Date of Patent: May 2, 1995
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Kenneth G. Sharp
  • Patent number: 5409995
    Abstract: A curable composition which comprises (C) a non-polymeric organic curing agent having at least two hydrosilyl groups in a molecule, (D) an organic polymer having at least one alkenyl group in a molecule, and (E) a hydrosilylation catalyst has rapid curability and good depth curability, and gives a homogeneous cured material having good mechanical properties.
    Type: Grant
    Filed: March 8, 1993
    Date of Patent: April 25, 1995
    Assignee: Kanegafuchi Chemical Industry Co., Ltd.
    Inventors: Takahisa Iwahara, Makoto Chiba, Tomoko Takahara, Kazuya Yonezawa
  • Patent number: 5409993
    Abstract: Fluid gasket composition with fine rubber particles has sufficient elasticity. The particle size of the rubber particles contained in the fluid gasket composition is desired to be 0.1 to 3.0 mm. The fluid gasket composition applied to a joint portion between mechanical parts or the like exhibits an effect of sealing and absorbing vibrations, dislocation and mechanical movements taking place in the mechanical parts.
    Type: Grant
    Filed: December 23, 1993
    Date of Patent: April 25, 1995
    Assignee: Three Bond Co., Ltd.
    Inventors: Kazuhiro Kojima, Minami Hanada
  • Patent number: 5408012
    Abstract: This invention relates to polymers having enhanced durable hydrophilicity and rewetting properties. The polymer has bonded thereto a hydrophilic copolymer. The copolymer comprises the reaction product of a primary hydroxylate having rewetting properties and a silane. The aliphatic polyamide or polyester polymer has an affinity for the hydrophilic copolymer and has substantially no polymerization with the hydrophilic copolymer. The present invention also provides a process of treating polymers to impart hydrophilicity and rewetting properties.
    Type: Grant
    Filed: May 27, 1993
    Date of Patent: April 18, 1995
    Assignee: Comfort Technologies, Inc.
    Inventor: Lloyd F. Barringer, Jr.
  • Patent number: 5405896
    Abstract: An adhesive silicone rubber composition of addition reaction curing type comprising (a) an organopolysiloxane containing an alkenyl group; (b) an organohydrogenpolysiloxane having at least one hydrogen atom directly attached to a silicon atom in a molecule; (c) an addition reaction catalyst; and (d) an adhesive agent selected from compounds of the following formulae (I), (II) and (III):A-(D-B).sub.x -D-A (I)C-(B-D).sub.
    Type: Grant
    Filed: December 9, 1993
    Date of Patent: April 11, 1995
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Hironao Fujiki, Shigeki Shudo, Akira Matsuda
  • Patent number: 5403891
    Abstract: A composition useful in the fabrication of extruded articles contains a thermoplastic resin such as polyethylene and from 100-3,000 parts per million of a lubricant which is (i) an organosilicon resinous copolymer having a number average molecular weight of between 1,200-10,000 and R.sub.3 SiO.sub.1/2, R.sub.2 SiO.sub.2/2, RSiO.sub.3/2 and SiO.sub.4/2 units, wherein R is a C.sub.1 -C.sub.6 alkyl, aryl, alkenyl and/or trifluoropropyl radical(s); or (ii) the organosilicon resinous copolymer and a siloxane polymer R.sub.3 SiO(R.sub.2 SiO).sub.n SiR.sub.3 wherein R is as defined heretofore and n is 1-100,000; or (iii) the organosilicon resinous copolymer and an absorbing filler such as silica; or (iv) the organosilicon resinous copolymer, the siloxane polymer and an absorbing filler.
    Type: Grant
    Filed: April 8, 1994
    Date of Patent: April 4, 1995
    Assignee: Dow Corning Corporation
    Inventor: David J. Romenesko
  • Patent number: 5391594
    Abstract: A free-flowing silicone polymer powder, having an average particle size of 1 to 1000 microns and prepared by mixing a polydiorganosiloxane with a silica filler, is uniformly dispersed in an organic resin using conventional equipment, such as a single screw or, preferably, a twin screw extruder. When employed at a concentration of about 0.5 to 25 parts by weight of powder per 100 parts by weight of resin, a significant improvement in the burn character of the modified resin is obtained such that the rate of heat release, generation of smoke and evolution of toxic carbon monoxide gas is significantly reduced relative to the unmodified resin.
    Type: Grant
    Filed: June 29, 1992
    Date of Patent: February 21, 1995
    Assignee: Dow Corning Corporation
    Inventors: David J. Romenesko, Robert R. Buch
  • Patent number: 5385970
    Abstract: This invention is directed to a non-halogen flame retardant thermoplastic molding composition having in combination a high molecular weight linear polyester and a non-halogen flame retardant. The flame retardant may be either a copolymer of polyetherimide-organopolysiloxane or a blend thereof with a polyphenylene sulfide, and/or a polyetherimide. The molding composition of the invention may also contain a filler.
    Type: Grant
    Filed: July 30, 1993
    Date of Patent: January 31, 1995
    Assignee: General Electric Company
    Inventors: Robert R. Gallucci, Ping Y. Liu
  • Patent number: 5384365
    Abstract: A release agent comprising a resin containing siloxane segments is described. The resin has been modified with a silane coupling agent containing at least one free isocyanate group and contains one or more hydrolyzable silyl groups in side chains of its molecule.
    Type: Grant
    Filed: December 29, 1993
    Date of Patent: January 24, 1995
    Assignees: Dainichiseika Color & Chemicals Mfg. Co., Ltd., Ukima Colour & Chemicals Mfg. Co., Ltd.
    Inventors: Kazuyuki Hanada, Iwao Misaizu, Masashi Saito, Katsutoshi Torii, Katsumi Kuriyama
  • Patent number: 5384354
    Abstract: The present invention provides a polyester film for processing of a metal sheet, which shows excellent molding-processability when it is laminated onto a metal sheet and the laminated metal sheet is made into a can by deep drawing or the like and which is suitable and useful for production of a metal can having excellent heat resistance, impact resistance and flavor-retaining property.A polyester film used for lamination onto a metal sheet for processing of said metal sheet, characterized in that the film is formed from 99 to 60% by weight of a copolyester, as the component A, having an ethylene terephthalate unit as the main recurring unit and having a melting point of 210 to 245.degree. C. and 1 to 40% by weight of a polybutylene terephthalate or a copolyester, as the component B, having a butylene terephthalate unit as the main recurring unit and having a melting point of 180 to 223.degree. C., and further comprising a lubricant having an average particle diameter of 2.5 .mu.
    Type: Grant
    Filed: September 15, 1993
    Date of Patent: January 24, 1995
    Assignee: Teijin Limited
    Inventors: Kinji Hasegawa, Takeo Asai, Yoji Murakami
  • Patent number: 5382624
    Abstract: Spherical resin particles having a sharp particle size distribution and a method for producing such particles are disclosed. Resin particles according to this invention contain at least a polyester polymer and a polymer formed from a polymerizable monomer, and have an average diameter (D) of 1 to 500 .mu.m. At least 70% by weight of the particles have a diameter in the range of 0.5 D to 2.0 D. Such resin particles can be produced by swelling polyester-containing seed particles with a polymerizable monomer and then polymerizing the polymerizable monomer in swelled seed particles.
    Type: Grant
    Filed: September 10, 1993
    Date of Patent: January 17, 1995
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Yasunari Hotta, Satoshi Maeda, Yozo Yamada, Shinichiro Mori, Toshio Tanaka, Koji Tanaka, Hiroshi Ono
  • Patent number: 5372879
    Abstract: The present invention provides a biaxially oriented polyester film made of a polyester containing 0.01 to 5% by weight of crosslinked polymer particles characterized by:(1) having a particle size distribution ratio (.gamma.) of 1.3 to 3.5,(2) having an average particle diameter of 0.1 to 2 .mu.m,(3) having a non-circularity of 3.4 or more, and(4) having a standard deviation of noncircularity, of at least 0.16.The polyester film of the present invention has a flat surface having a small number of large protuberances, excellent running property and excellent winding property, and can be produced economically. The film has excellent properties for use as a base for various magnetic recording media.
    Type: Grant
    Filed: February 18, 1994
    Date of Patent: December 13, 1994
    Assignee: Teijin Limited
    Inventors: Makoto Handa, Tomoyuki Kishino
  • Patent number: 5368943
    Abstract: A silane-capped polyurethane block copolymer comprising at least one polyester block and at least one polyacrylate block is disclosed. The copolymer can be used in coatings, and is particularly useful as a primer coating, especially as a primer for non-porous surfaces to which adhesives will be applied.
    Type: Grant
    Filed: December 20, 1991
    Date of Patent: November 29, 1994
    Assignee: Adco Products, Inc.
    Inventors: Jamil Baghdachi, Cheryl Van Valkenburg
  • Patent number: 5359005
    Abstract: Stable, non-gelled, one-package coating compositions capable of being cured at ambient conditions to produce durable coatings comprising at least one polymer and/or oligomer having a molecular weight of at least about 100 and bearing at least two specific aziridine moieties, at least two specific carbodiimide moieties or combinations thereof and at least one polymer and/or oligomer having a molecular weight of at least about 100 and bearing at least two covalently blocked carboxylic acid moieties. Process for coating a substrate using such compositions are also claimed.
    Type: Grant
    Filed: December 29, 1992
    Date of Patent: October 25, 1994
    Assignee: PPG Industries, Inc.
    Inventors: Charles M. Kania, Padmanabhan Sundararaman, David T. McKeough, Gregory J. McCollum, James B. O'Dwyer
  • Patent number: 5354815
    Abstract: This invention relates to polymers having enhanced hydrophilicity and thermal regulative properties. Exemplary polymers include aliphatic polyamide polymers and polyester polymers. The polymer has bonded thereto a hydrophilic polysiloxane having an affinity for the polymer and having a molecular weight greater than about 1000 g/mol preferably greater than about 2000 g/mol, and preferably greater than about 4000 g/mol. The polymer has substantially no polymerization with the hydrophilic polysiloxane. Alternatively, an aliphatic polyamide polymer is provided having enhanced hydrophilicity and thermal regulative properties. The polymer has bonded thereto an anionic hydrophilic polysiloxane having an affinity for the aliphatic polyamide polymer. The aliphatic polyamide polymer has substantially no polymerization with the anionic hydrophilic siloxane.
    Type: Grant
    Filed: June 5, 1992
    Date of Patent: October 11, 1994
    Assignee: Comfort Technologies
    Inventors: Lloyd F. Barringer, Jr., William T. Ledford
  • Patent number: 5354829
    Abstract: A polymeric reaction product is disclosed that is a silylated polyamine-containing polymer having moieties from fatty acid moieties and/or chain extenders as difunctional organo moieties and free amine moieties and hydrolyzed and/or hydrolyzable organofunctional silane moieties and that is at least water dispersible. The reactants that produce this product are a polyamine-containing polymer with fatty acid moieties and free amine moieties and at least one amine-reactable organo functional alkoxysilane or its hydrolysis products. The former reactant results from the reaction of a polyamine-containing polymer with free amine moieties with fatty acids alone or in mixtures with other fatty acids and/or dimer acids. The polymeric reaction product is combined with a predominant amount of water to form a fiber treating formulation that can reside on the surface of one or more treated fibers.
    Type: Grant
    Filed: June 30, 1992
    Date of Patent: October 11, 1994
    Assignee: PPG Industries, Inc.
    Inventors: Robert G. Swisher, Richard P. Beaver, Robert G. Briody, Louis J. Nehmsmann
  • Patent number: 5346968
    Abstract: Oligosiloxanes of the formula I ##STR1## where R.sup.1 is a C.sub.1 -C.sub.4 -alkyl andn is from 2 to 50,are chiefly used for fabricating fiber-reinforced composite and ceramic materials.
    Type: Grant
    Filed: December 1, 1993
    Date of Patent: September 13, 1994
    Assignee: BASF Aktiengesellschaft
    Inventor: Karl-Heinz Haas
  • Patent number: 5334656
    Abstract: A polyester resin composition obtained by melt-mixing a mixture comprising resin components comprising as main resins(A) a thermoplastic polyester resin and(B) a polyorganosiloxane graft copolymer obtained by graft-polymerizing one or more kinds of vinyl monomer containing at least an epoxy group-containing vinyl monomer onto a compound rubber in which a polyorgano-siloxane rubber and a polyalkyl (meth)acrylate rubber have been inseparably united with each other. According to the present invention is provided a polyester resin composition in which the impact resistance of a thermoplastic polyester resin, a main constituent, has been improved over a wide temperature range including low temperatures below 0.degree. C., and which provides molded products having good appearance.
    Type: Grant
    Filed: January 25, 1993
    Date of Patent: August 2, 1994
    Assignee: Matsubishi Rayon Co., Ltd.
    Inventors: Naoki Yamamoto, Akira Yanagase, Akira Nakata, Atsunori Koshirai, Toshimi Yanai
  • Patent number: 5334672
    Abstract: Flame retardant blends of poly(aryloxysiloxane) and organic polymers such as polyethers, polyesters, polyetherimides and terpolymers of acrylonitrile-butadiene-styrene are provided. In many instances, the flame retardant blends exhibit improved chemical resistance, impact resistance and have an improved heat deflection temperature as compared to the original polymeric materials.
    Type: Grant
    Filed: May 27, 1993
    Date of Patent: August 2, 1994
    Assignee: General Electric Company
    Inventors: Therese C. Jordan, Jimmy L. Webb
  • Patent number: 5328965
    Abstract: The introduction of a curable organosilicone composition that affords a very releasable, highly printable cured film that is strongly adhesive for such substrates as polyester film and so forth.Curable organosilicone composition that is composed of (A) polyorganosiloxane-grafted, aliphatic ally unsaturated polyester (B) organopolysiloxane that contains at least 3 silicon-bonded hydrogen atoms in each molecule, and (C) hydrosilylation-reaction catalyst.
    Type: Grant
    Filed: March 22, 1993
    Date of Patent: July 12, 1994
    Assignee: Dow Corning Toray Silicone Co., Ltd.
    Inventors: Ryuzo Mikami, Tadashi Okawa
  • Patent number: 5326818
    Abstract: Polymeric stabilizers with a polysiloxanic structure contain sterically hindered phenol groups and reactive groups capable of binding themselves to the polymeric structure to be stabilized. These polymeric stabilizers are particularly suitable for applications which require the non-extractability of additives due to solvents, fats or soaps.
    Type: Grant
    Filed: December 2, 1993
    Date of Patent: July 5, 1994
    Assignee: Eni Chem Synthesis S.p.A.
    Inventors: Luciano Pallini, Daniele Fabbri, Rossella Farris, Carlo Neri
  • Patent number: 5324807
    Abstract: A curable resin composition comprising (a) an acrylic, polyester, epoxy or polyol resin having a plurality of alkynyl groups, (b) an organohydrogenpolysiloxane, and (c) an amount of platinum catalyst effective to catalyze the crosslink reaction between (a) and (b). The composition is useful for coating and molding purposes and gives a cured product having excellent acid resistance, water resistance and other properties.
    Type: Grant
    Filed: September 28, 1992
    Date of Patent: June 28, 1994
    Assignees: Shin-Etsu Chemical Co., Ltd., Nippon Paint Co., Ltd.
    Inventors: Mitsuo Yamada, Hiroharu Ohsugi, Mitsuhiro Takarada, Yuji Yoshikawa
  • Patent number: 5321082
    Abstract: A curable resin composition containing (a) a polymer having a plurality of alkenyl groups, (b) an organohydrogenpolysiloxane having a plurality of hydrosilyl groups, (c) a polymer having a plurality of alkynyl groups, and (d) a hydrosilylation catalyst is disclosed. The composition is stable at room temperature but curable at an elevated temperature.
    Type: Grant
    Filed: April 14, 1993
    Date of Patent: June 14, 1994
    Assignee: Nippon Paint Company, Ltd.
    Inventors: Hiroharu Ohsugi, Yoshio Eguchi
  • Patent number: 5318853
    Abstract: This invention relates to multiple glass/plastic laminates for ballistic resistant and security applications. The laminates typically comprise a glass lite and a plastic sheet, such as polycarbonate, bonded with an adhesive based on a novel solvent free thermosetting alkyd resin. Subsequent layers can be polycarbonate sheets and/or acrylic sheets and glass lites with the adhesive layer separating the lites and sheets.The resin developed specifically for this application is an unsaturated polyester designed to be highly flexible, tough, low exotherm and compatible with t-butyl styrene. This monomer is unique in that it does not etch acrylic or polycarbonate sheets.Further, this invention relates to a vertical liquid pour process which enables the rapid manufacture of bullet resistant glass/plastic laminates without the need for expensive ultra-violet or heat curing ovens. The adhesive cures at temperatures ranging from 60.degree. F. to 90.degree. F.
    Type: Grant
    Filed: July 22, 1992
    Date of Patent: June 7, 1994
    Assignee: Resikast Corporation
    Inventors: Charles E. Bayha, H. Arne Sudlow
  • Patent number: 5302669
    Abstract: A curable resin comprising units of at least one prepolymer selected from the group consisting of a prepolymer (C) and a prepolymer (F); the prepolymer (C) having the formula (I): ##STR1## and the prepolymer (F) having the formula (III): ##STR2## The curable resin has the excellent flexibility, solvent resistance and adhesion to organic materials and the properties thereof can be controlled accordingly to desire, in addition to the excellent curability at ordinary temperature, adhesion to inorganic materials and weatherability.
    Type: Grant
    Filed: September 21, 1992
    Date of Patent: April 12, 1994
    Assignee: Kanegafuchi Kagaku Kogyo Kabushiki Kaisha
    Inventors: Hisao Furukawa, Naotami Ando, Yasushi Kato
  • Patent number: 5296569
    Abstract: Complex microspheres consist of polysiloxane and vinyl polymers which are unistructurally mixed together and substantially free of covalent bonds therebetween. Polysiloxane and vinyl polymer are contained at ratio of 97/3.about.30/70 by weight, the average diameter of the complex microspheres is 0.05.about.30 .mu.m, the standard deviation of their particle size is 1.0.about.2.5, and the ratio between their major and minor axes is 1.0.about.1.2. Thermoplastic films containing such complex microspheres at a specified rate have improved lubricity and anti-blocking properties.
    Type: Grant
    Filed: April 12, 1993
    Date of Patent: March 22, 1994
    Assignee: Takemoto Yushi Kabushiki Kaisha
    Inventors: Ippei Noda, Masanobu Abe, Fumitoshi Sugiura
  • Patent number: 5283296
    Abstract: Modified polymers based on a graft polyester comprising:a backbone derived from a water-dispersible sulphonated polyesterand grafts consisting of copolymer units derived from at least one vinyl monomer and at least one ethylenically unsaturated organopolysiloxane soluble in the said vinyl monomer or monomers.They are prepared by:preemulsion, in water, of a solution of an organopolysiloxane in one or more vinyl monomersfollowed by addition of the emulsion obtained to an aqueous solution of a water-dispersible sulphonated polyester and polymerization in the presence of a water-soluble or water-dispersible initiator.They can be used as coating agents.
    Type: Grant
    Filed: December 27, 1990
    Date of Patent: February 1, 1994
    Assignee: Rhone-Poulenc Chimie
    Inventors: Edith Canivenc, Jean-Francois Fiard, Etienne Fleury
  • Patent number: 5283542
    Abstract: A composition of matter is provided which comprises low-shrinkage, wet-type unsaturated polyester (B.M.C.) having high thermal conductivity, glass fibers, and a particulate aluminum nitride filler having high thermal conductivity. Also provided is an electrical component housing which possesses high thermal conductivity and heat dissipation properties including a body of a low-shrinkage, wet-type unsaturated polyester (B.M.C.) composition having high thermal conductivity.
    Type: Grant
    Filed: July 2, 1992
    Date of Patent: February 1, 1994
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Haruyuki Ochiai, Sadatoshi Murakami, Setsuo Hosogai
  • Patent number: 5280098
    Abstract: There is disclosed a method for forming a solid, epoxy-functional silicone resin by hydrolyzing and condensing a mixture of at least one organoalkoxysilane and a beta-(3,4-epoxycyclohexyl)-functional trialkoxysilane in the presence of an organotitanate catalyst. The silicone resins prepared according to the instant method find utility in the formulation of powder coatings, either alone or in combination with organic resins.
    Type: Grant
    Filed: September 30, 1992
    Date of Patent: January 18, 1994
    Assignee: Dow Corning Corporation
    Inventors: Gerald L. Witucki, Harold L. Vincent
  • Patent number: 5276108
    Abstract: A curable resin comprising units of at least one prepolymer selected from the group consisting of a prepolymer (C) and a prepolymer (F); the prepolymer (C) having the formula (I): ##STR1## and the prepolymer (F) having the formula (III): ##STR2## The curable resin has the excellent flexibility, solvent resistance and adhesion to organic materials and the properties thereof can be controlled accordingly to desire, in addition to the excellent curability at ordinary temperature, adhesion to inorganic materials and weatherability.
    Type: Grant
    Filed: September 18, 1992
    Date of Patent: January 4, 1994
    Assignee: Kanegafuchi Kagaku Kogyo Kabushiki Kaisha
    Inventors: Hisao Furukawa, Naotami Ando, Yasushi Kato
  • Patent number: 5268414
    Abstract: A liquid-crystal polyester resin composition comprises a melt-processable polyester which can form an anisotropic molten phase by heating (liquid-crystal polyester) and a silicone rubber.
    Type: Grant
    Filed: November 8, 1991
    Date of Patent: December 7, 1993
    Assignee: Polyplastics Co., Ltd.
    Inventors: Mikio Nakai, Takayuki Ishikawa
  • Patent number: 5260401
    Abstract: The invention discloses novel fluorine containing polyester compounds. Compounds of the invention by virtue of (a) the silicone containing polyester group, (b) the fluorine containing terminal groups and (c) the polyoxyalkylene containing dimethicone copolyol group are extremely efficient lubricating materials when applied to a variety of surfaces and are water dispersible or water soluble depending upon the specific molecule. These materials have a water soluble portion in the silicone backbone which allows for the preparation of water dispersible and water soluble fluorine containing compounds useful in personal care applications as conditioners and softeners. The compounds of the present invention are prepared from terminal silicone containing dimethicone copolyols. This results in substantially linear polymers which form non-occlusive, hydrophobic films which are useful in barrier creams, automotive waxes and other lubricating compositions.
    Type: Grant
    Filed: May 3, 1993
    Date of Patent: November 9, 1993
    Assignee: Siltech Inc.
    Inventor: Anthony J. O'Lenick, Jr.
  • Patent number: 5254606
    Abstract: A graft type silicone-modified polyester forms a base for a surface-protective agent which has excellent water-repellency properties as well as retention of said properties after exposure to the environment.
    Type: Grant
    Filed: September 12, 1991
    Date of Patent: October 19, 1993
    Assignee: Dow Corning Toray Silicone Co., Ltd.
    Inventors: Ryuzo Mikami, Tadashi Okawa
  • Patent number: 5250615
    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: June 10, 1992
    Date of Patent: October 5, 1993
    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: 5250621
    Abstract: Interpolymers of aromatic polyesters and cross-linked (or partially cross-linked) rubbers and a process for their production in which a mixture of a cross-linked rubber in latex form containing reactive groups and an aqueous solution of an alkali metal or alkaline earth metal diphenolate is reacted with a solution of a dicarboxylic acid halide and/or a carbonyl halide in a water-immiscible solvent so that an aromatic polyester forms at the water/organic solvent phase boundary, which polyester goes over into the organic phase and the rubber at the same time also goes into the organic phase. The interpolymer of rubber and organic polyester thus formed is suitable for the production of moulded articles of all kinds by the methods of thermoplastic shaping such as extrusion and injection moulding.
    Type: Grant
    Filed: June 17, 1991
    Date of Patent: October 5, 1993
    Assignee: Bayer Aktiengesellschaft
    Inventors: Holger Lutjens, Uwe Westeppe, Leo Morbitzer, Karl-Erwin Piejko, Christian Lindner
  • Patent number: 5242978
    Abstract: The present invention is directed to a novel composition and the use thereof in various coating applications. The composition broadly comprises:a) an organic compound containing a primary amino group and an alkoxysilane group, andb) a plastic precursor containing at least two acetoacetate and/or acetoacetamide groups per molecule.
    Type: Grant
    Filed: October 15, 1991
    Date of Patent: September 7, 1993
    Assignee: Bayer Aktiengesellschaft
    Inventors: Walter Schafer, Hanns-Peter Muller, Michael Sonntag
  • Patent number: H1275
    Abstract: Polyester filaments of 0.5-2 denier per filament from ethylene terephthalate polymers modified both by polyethylene oxide and by tetraethyl silicate to give polymers of commercial spinning viscosities, and textile fibers and fabrics having greatly improved dye rates, good color stability to standard lightfastness and wash cycles and good pilling, when compared to unmodified polyester and polyester/cotton blend fabrics.
    Type: Grant
    Filed: September 30, 1991
    Date of Patent: January 4, 1994
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Patrick J. Duncan