Si-c, Si-h Contains Dnrm, Metal-c Or Metal-h Bond Or Organic Compound Containing Si Patents (Class 524/730)
  • Patent number: 6352780
    Abstract: The present invention relates to a polymeric coating composition for application onto glass substrates for anti-reflective properties. The coating is provided via chemical grafting that involves the use of monomers and/or prepolymers, catalyst, and graft initiator and when applied onto the surface of the glass substrate forms a polymeric film chemically bonded to the glass with excellent adhesion. This coating can reduce the reflectance of the coated glass surface to as close to zero as possible, thus maximizing transmittance and providing resistance to abrasion, water/chemical attack, and UV degradation.
    Type: Grant
    Filed: February 22, 2000
    Date of Patent: March 5, 2002
    Assignee: AFG Industries, Inc.
    Inventors: Mohan L. Sanduja, Carl Horowitz, Abraham Thomas, Paul Thottathil
  • Patent number: 6348557
    Abstract: The invention relates to crosslinkable materials based on organopolysiloxanes. Said materials are characterized in that in addition to organopolysiloxanes they contain at least one low-molecular organosilicon compound with 2 to 17 silicon atoms comprising units of the formula (I) R1aR2b(OR3)cSiO4−(a+b+c)/2, R1, R2, R3, a, b and c having the meaning given in claim 1 provided that low-molecular organosilicon compounds comprising units of the formula (I) where b is 0 have at least one unit of the formula (I) in which a is 0 or 1, and at least one unit of the formula (I) in which a is 3.
    Type: Grant
    Filed: December 23, 1998
    Date of Patent: February 19, 2002
    Assignee: Wacker-Chemie GmbH
    Inventors: Herbert Barthel, August Altenbuchner, Johann Schuster, Mario Heinemann, Lutz Eismann, Otto Rothenaicher
  • Patent number: 6329461
    Abstract: A method of producing silicone-containing aqueous coating compositions excellent in shelf stability of the emulsion and in weather resistance, stain resistance, water resistance and solvent resistance of coatings derived therefrom is provided. The method comprises subjecting an aqueous emulsion prepared in advance by emulsification in an aqueous medium containing a polyalkoxypolysiloxane (A), an unsaturated monomer (B) and an emulsifier (C) so as to attain an oil droplet diameter not more than 1,000 nm to polymerization in the presence of a polymerization initiator (D).
    Type: Grant
    Filed: August 3, 1999
    Date of Patent: December 11, 2001
    Assignee: Nippon Gohsei Kagaku Kogyo Kabushiki Kaisha
    Inventors: Mamoru Akiyama, Teruhiko Ogawa, Akio Kitagawa, Masayuki Kyogoku
  • Patent number: 6312818
    Abstract: A curable release coating composition is provided, comprising (a) a cationically curable functionalized polyorganosiloxane; (b) a photoinitiator; and (c) an adhesion promoter having the following formula (1): wherein R1 to R3 and R7 to R9 are independently alkyl, alkoxy, aryl, aryloxy or alkenyl hydrocarbon or halohydrocarbon groups having from 1 to 20 carbon atoms, R4 and R6 are are independently alkyl, aryl, or alkenyl hydrocarbon or halohydrocarbon groups having from 1 to 20 carbon atoms, and R5 is an alkyl, aryl, or alkenyl hydrocarbon or halohydrocarbon group having from 1 to 20 carbon atoms. Cured release coatings from theses compositions exhibit less rub off than other coatings, particularly on plastic substrates.
    Type: Grant
    Filed: December 22, 1999
    Date of Patent: November 6, 2001
    Assignee: General Electric Company
    Inventors: Slawomir Rubinsztajn, Melania I. Lapinski
  • Publication number: 20010034396
    Abstract: An acrylic resin composition comprises an organic silicon based compound that can be copolymerised with or mixed with acryl monomer or methacryl monomer in the acrylic resin. The acrylic resin composition may contain inorganic fine grains of which the hydroxyl group or the methyl group is bonded to their surface. A painted-film molded resin plate and a coating member for a solar cell panel use the above acrylic resin composition.
    Type: Application
    Filed: March 6, 2001
    Publication date: October 25, 2001
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Tomohiro Ito, Mikiya Shinohara, Takashi Seino, Kouichi Handa
  • Patent number: 6302835
    Abstract: A material for coating an imaging member comprising: a crosslinked poly(dialkylsiloxane), zirconium silicate and optional T-resin.
    Type: Grant
    Filed: December 1, 1999
    Date of Patent: October 16, 2001
    Assignee: NexPress Solutions LLC
    Inventors: Stephen V. Davis, Nataly Boulatnikov
  • Patent number: 6280517
    Abstract: The methods of forming a chemically adsorbed film by contacting a substrate with a solution mixture containing an alkoxysilane surface active agent, a non-aqueous solvent and a silanol-condensing catalyst to form a film covalently bonded to the substrate via siloxane bonds. These methods do not generate hydrochloric acid gas in forming the films and allow practical reaction rates.
    Type: Grant
    Filed: January 20, 2000
    Date of Patent: August 28, 2001
    Assignee: Matushita Electric Industrial Co. Ltd.
    Inventor: Kazufumi Ogawa
  • Patent number: 6261690
    Abstract: The invention relates to homogeneously colored polyester particles having a mean particle size <50 &mgr;m and a monomodal particle size distribution with a span (=d90−d10/d50)≦2.5, which can be melted at temperatures <200° C. to form a continuous coating, to a process for their preparation and to their use for powder coatings. In a preferred embodiment the particles comprise units of formulae (1) and (2) —CO—X—CO  (1) —O—D—O—  (2) where X is a substituted or unsubstituted C6 to C14 aromatic radical or an alkylene, polymethylene, cycloalkane or dimethylene-cycloalkane group or a straight-chain or branched, saturated or unsaturated alkanediyl group and D is an alkylene, polymethylene, cycloalkane or dimethylene-cycloalkane group or a straight-chain or branched, saturated or unsaturated alkanediyl group.
    Type: Grant
    Filed: August 13, 1999
    Date of Patent: July 17, 2001
    Assignee: Aventis REsearch & Technology GmbH & Co. KG
    Inventors: Karsten Blatter, Peter Simon
  • Patent number: 6191247
    Abstract: A polysiloxane composition comprising (A) a polysiloxane having a group represented by the formula (I): ≡Si—OR  (I) wherein, R is a C1 to C18 substituted or unsubstituted monovalent hydrocarbon group or ether bond containing an organic group; and (B) at least 1 ppm of (a) a compound having an N, P, S, Sn, or As component or (b) an acetylene alcohol and a rubber composition containing the same. Specific polysiloxanes (A) contain both formula (I): ≡Si—OR as well as Si—H.
    Type: Grant
    Filed: April 4, 1997
    Date of Patent: February 20, 2001
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventors: Kazunori Ishikawa, Fumito Yatsuyanagi, Tetsuji Kawazura
  • Patent number: 6127503
    Abstract: An organic silicon compound having at least one phenyl skeleton, at least one nitrogen atom, and at least one SiH radical is added to an adhesive silicone composition comprising a diorganopolysiloxane containing at least two alkenyl radicals, an organohydrogenpolysiloxane containing at least two SiH radicals, and a platinum catalyst. The composition firmly adheres to organic resins, especially polyamide and polyimide resins, but not to metals.
    Type: Grant
    Filed: November 4, 1998
    Date of Patent: October 3, 2000
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Kazutoshi Fujioka, Hironao Fujiki
  • Patent number: 6124407
    Abstract: A silicone composition comprising (A) 100 parts by weight of a polydiorganosiloxane containing an average of at least two silicon-bonded alkenyl groups per molecule; (B) 75 to 150 parts by weight of an organopolysiloxane resin having a number-average molecular weight of from 2,000 to 5,000 and consisting essentially of R.sup.3.sub.2 R.sup.4 SiO.sub.1/2 units and SiO.sub.4/2 units wherein each R.sup.3 is independently selected from the group consisting of monovalent hydrocarbon and monovalent halogenated hydrocarbon groups free of aliphatic unsaturation, R.sup.4 is selected from the group consisting of R.sup.3 and alkenyl, the mole ratio of R.sup.3.sub.2 R.sup.4 SiO.sub.1/2 units to SiO.sub.4/2 units is from 0.6:1 to 1.1:1, and the resin contains an average of from 2.5 to 7.
    Type: Grant
    Filed: October 28, 1998
    Date of Patent: September 26, 2000
    Assignee: Dow Corning Corporation
    Inventors: Yeong Joo Lee, Michael Dean Livingston, Hongxi Zhang, Randall Gene Schmidt
  • Patent number: 6114436
    Abstract: The present invention relates to moisture-curable compositions containinga) 5 to 95%, based on the weight of components a) and b), of polyisocyanates having (cyclo)aliphatically-bound isocyanate groups andb) 5 to 95%, based on the weight of components a) and b), of compounds containing alkoxysilane groups and corresponding to the formula ##STR1## wherein X represents identical or different organic groups which are inert to isocyanate groups below 100.degree. C., provided that at least one of these groups is an alkoxy group andY represents a linear or branched alkylene radical containing 1 to 8 carbon atoms. The present invention also relates to coatings, adhesives or sealants prepared from these moisture-curable compositions.
    Type: Grant
    Filed: April 20, 1999
    Date of Patent: September 5, 2000
    Assignee: Bayer Corporation
    Inventor: Richard R. Roesler
  • Patent number: 6075115
    Abstract: The invention provides a process that can be used for producing a bis-glycolate ester of 5-sulfo isophthalate metal salt. The process comprises contacting a 5-sulfo isophthalate a metal salt or a dialkyl ester of 5-sulfo isophthalate metal salt, in the presence of a catalyst, with a glycol. The catalyst comprises (1) a titanium compound, a solubility promoter, a phosphorus source, and optionally a solvent, (2) a titanium compound, a complexing agent, a phosphorus source, and optionally a solvent, a sulfonic acid, or combinations thereof, or (3) combinations of (1) and (2). The solubility promoter can be selected from the group consisting of ortho silicates, ortho zirconates and combinations thereof. The phosphorus source is selected from the group consisting of a phosphonic acid, a phosphinic acid, a phosphine, and combinations of two or more thereof. The complexing agent can be selected from the group consisting of hydroxycarboxylic acids, aminocarboxylic acids, and combinations thereof.
    Type: Grant
    Filed: October 19, 1999
    Date of Patent: June 13, 2000
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Donald Edward Putzig, William G Peet
  • Patent number: 6069226
    Abstract: Polytetramethylene ether glycol diester of the formula ##STR1## wherein R and R.sup.1 are identical or different and are alkyl radicals having 1-4 carbon atoms, and n is an integer from 2 to 200, are prepared by polymerizing tetrahydrofuran in the presence ofi) an acid-activated polymerization catalyst selected from synthetic amorphous aluminum silicates, zeolite and kaolin, which has been calcined at from 350.degree. to 700.degree. C. before use,ii) a carboxylic anhydride, andiii) from 1 to 10% by weight, based on the weight of the polymerization catalyst, of a metal from the 8th group of the Periodic Table of the Elements as a hydrogenation catalyst.
    Type: Grant
    Filed: October 21, 1997
    Date of Patent: May 30, 2000
    Assignee: BASF Aktiengesellschaft
    Inventor: Monika Muller
  • Patent number: 6054546
    Abstract: Provided is a solvent-free two-liquid type normal temperature curable liquid polymeric composition which comprises (I) as a first liquid, a liquid composition comprising (A) an organosiloxane component comprised of (a) one or more liquid organopolysiloxanes of the general formula: ##STR1## wherein R.sup.1 stands for a hydrogen atom, an alkyl group with 1-5 carbon atoms or an acyl group; R.sup.2 to R.sup.6 are the same or different and each stands for a hydrogen atom, --OR.sup.1 or a univalent hydrocarbon group; and n for an integer of 1-15, (b) a crosslinking agent comprising one or more organometallic compounds of the general formula:R.sup.7.sub.p M.(OR.sup.1).sub.3-porR.sup.7.sub.m Q.(OR.sup.1).sub.4-mwherein M stands for aluminum or boron element; Q for silicon, titanium or zirconium element; R.sup.1 for a hydrogen atom, an alkyl group with 1-5 carbon atoms, an acyl group or an oxime group; R.sup.7 for a hydrogen atom, --OR.sup.
    Type: Grant
    Filed: February 3, 1998
    Date of Patent: April 25, 2000
    Assignee: Suzuki Sangyo Co., Ltd.
    Inventors: Tomio Suzuki, Kimie Watanabe
  • Patent number: 6051729
    Abstract: A process for preparing organosilazane and ammonium chloride, by reaction of an organochlorosilane with ammonia in the presence of organosilazane as solvent, wherein ammonium chloride is removed from the resulting organosilazane and ammonium chloride-containing mixture, the improvement comprising adding an antiblocking agent to the mixture before removal, or to the ammonium chloride after its removal, such that a non-blocking, reusable ammonium chloride product is obtained.
    Type: Grant
    Filed: October 23, 1998
    Date of Patent: April 18, 2000
    Assignee: Wacker-Chemie GmbH
    Inventors: Richard Weidner, Walter Benischke, Gunther Uhlendorf
  • Patent number: 6040378
    Abstract: The present invention relates to a polymeric coating composition for application onto glass substrates for anti-reflective properties. The coating is provided via chemical grafting that involves the use of monomers and/or prepolymers, catalyst, and graft initiator and when applied onto the surface of the glass substrate forms a polymeric film chemically bonded to the glass with excellent adhesion. This coating can reduce the reflectance of the coated glass surface to as close to zero as possible, thus maximizing transmittance and providing resistance to abrasion, water/chemical attack, and UV degradation.
    Type: Grant
    Filed: May 15, 1998
    Date of Patent: March 21, 2000
    Assignee: AFG Industries, Inc.
    Inventors: Mohan L. Sanduja, Carl Horowitz, Abraham Thomas, Paul Thottathil
  • Patent number: 6037055
    Abstract: New copolyester composition that provides excellent filament spinning and mill/yarn processing of staple fiber into fabrics having combination of excellent pilling performance as well as aesthetics and tactility ("hand"). Preferred fibers have non-round cross-sections, especially multi-grooved and scalloped-oval cross-sections that provide fabrics having outstanding comfort qualities of moisture-management, dryness and comfort, as well as minimal pilling.
    Type: Grant
    Filed: September 8, 1998
    Date of Patent: March 14, 2000
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Arun Pal Aneja, Frederick Karl Mallon, Adrian Charles Snyder
  • Patent number: 6034171
    Abstract: A moisture curable composition comprises a mixture and/or a reaction product of a polymeric material having not less than two groups bonded to silicon which are hydroxyl or hydrolyzable groups, an alkoxysilane curative, an adhesion promoter and catalyst material for catalyzing the condensation reaction between the polymeric material and the alkoxysilane curative. The adhesion promoter comprises a silicone-organic copolymer consisting of units (I) according to the general formula R.sub.a R'SiO.sub.(4-a)/2 and units (II) according to the general formula R.sub.b R'SiO.sub.(3-b)/2 where R represents a monovalent hydrocarbon group and R' represents an oxyalkylene chain R.sup.6 (C.sub.2 H.sub.4 O).sub.x (C.sub.3 H.sub.6 O).sub.y Z in which R.sup.6 represents a hydrocarbon linkage to a silicon atom, Z represents H or a carboxylic acid residue.
    Type: Grant
    Filed: July 27, 1998
    Date of Patent: March 7, 2000
    Assignee: Dow Corning S.A.
    Inventor: Patrick Leempoel
  • Patent number: 6020409
    Abstract: Polyorganosiloxane gels are prepared using compositions curable by a platinum catalyzed hydrosilation reaction that are characterized by the presence of a non-functional silicone fluid. The gel may contain additional components and may also be formulated into a multi-part system.
    Type: Grant
    Filed: September 19, 1997
    Date of Patent: February 1, 2000
    Assignee: Dow Corning Corporation
    Inventors: Khristopher Edward Alvarez, Roger Allen Frazer, Myron Timothy Maxson, Ann Walstrom Norris, Michael Raymond Strong, Beth Ann Witucki, Shizhong Zhang
  • Patent number: 6013711
    Abstract: The instant invention provides a method for improving the miscibility of the lower molecular weight unsaturated siloxane-polyether copolymers with the .alpha., .omega.-divinylpolysiloxanes without loss of storage stability, or delay of cure at the vulcanization temperature, or loss of permanent hydrophilicity or other desirable features of the cured polysiloxane. The compositions of the present invention comprise one or more .alpha., .omega.-divinylpolysiloxanes, unsaturated polysiloxane-polyether copolymers having from 2 to 5 silicon atoms per molecule which are preferably trisiloxanes, and a compatibilizing additive. The permanently hydrophilic, rapidly wettable polysiloxane compositions yield static water contact angles <50.degree. dynamic advancing contact angles of less than about 100.
    Type: Grant
    Filed: June 9, 1998
    Date of Patent: January 11, 2000
    Assignee: CK Witco Corporation
    Inventors: Kenrick M. Lewis, Hua Yu
  • Patent number: 6010757
    Abstract: The present invention provides a surface coating composition including: an organometallic comound (I) and/or a hydrolytic condensation product thereof: an organic compound (II) having a primary and/or secondary amino group in its molecule; and a compound (III) having a functional group reactable with the amino group in its molecule. The surface coating composition is capable of forming a coating layer which exhibits excellent gas barrier properties, transparency, and flexibility. A resin molding formed with the coating layer is preferably used as a wrapping material and a substrate for liquid crystal display device.
    Type: Grant
    Filed: September 29, 1997
    Date of Patent: January 4, 2000
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Tetsuya Yamamoto, Akio Naka, Yukiko Nishio
  • Patent number: 6005048
    Abstract: The organopolysiloxane compositions are prepared by mixing(1) organopolysiloxanes which contain on average at least 2 aliphatic carbon-carbon multiple bonds per molecule,(2) prehydrophobized oxidic reinforcing fillers having a carbon content, obtained by the hydrophobizing, of at least 0.5% by weight and(3) compounds which are chosen from(3a) silanol compounds of the formulaR--[SiR.sub.2 --O--].sub.a H (I)in whichR is identical or different monovalent, C.sub.1 - to C.sub.10 -hydrocarbon radicals which are free from aliphatic carbon-carbon multiple bonds anda has values from 1 to 10, and(3b) saturated C.sub.1 - to C.sub.18 -alkanols.
    Type: Grant
    Filed: November 1, 1996
    Date of Patent: December 21, 1999
    Assignee: Wacker-Chemie GmbH
    Inventors: Johann Schuster, Horst Muller, Johann Mersch, Heinrich Glocklhofer, Anton Maier
  • Patent number: 6004679
    Abstract: A multilayer laminate having improved peel strength and containing a first and third layer comprising various plastic, metal, or glass materials, and a second layer containing an addition-curable silicone composition curable to form an adhesive having good physical properties and improved peel adhesion properties, the second layer comprising (A) a vinyl-containing polydiorganosiloxane composition, (B) a hydrogen-terminated polysiloxane, preferably in an amount sufficient to provide an adhesion-promoting molar ratio of silicon-bonded hydrogen atoms in (B) to olefinically unsaturated radicals in (A); (C) a catalytic amount of a platinum-containing hydrosilation catalyst; (D) an effective amount of an adhesion promoter selected from the group consisting of (i) bis[3-(trimethoxysilyl)alkyl]-fumarates; (ii) bis[3-(trimethoxysilyl)alkyl]maleates; (iii) allyl-[3-(trimethoxysilyl)alkyl]maleates; (iv) allyl-[3-(trimethoxysilyl)alkyl]fumarates; and (v) N-[3-(trimethoxysilyl) alkyl]maleimides, wherein R.sup.2, R.sup.
    Type: Grant
    Filed: March 14, 1991
    Date of Patent: December 21, 1999
    Assignee: General Electric Company
    Inventors: Tyrone Duncan Mitchell, Stuart Robert Kerr, III, Mark Wayne Davis
  • Patent number: 5998541
    Abstract: Finishing agents comprise the combination of an alkoxysilane surface active agent, a silanol condensing catalyst, and a nonaqueous liquid or solid medium, or the combination of an alkoxysilane surface active agent, an acid catalyst and a liquid or solid medium. In the latter embodiment, it is preferred that at least one of the alkoxysilane surface active agent and the acid catalyst be microencapsuled. The finishing agent permits formation of chemically adsorbed protecting films. Such protecting films are used for substrates of such equipments as electronics products, electric domestic products, automobiles, industrial equipments, mirrors, lenses for glasses and the like. The protecting films have a durability and heat, weather and abrasion resistance, and also water and oil repellent properties.
    Type: Grant
    Filed: June 11, 1996
    Date of Patent: December 7, 1999
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventor: Kazufumi Ogawa
  • Patent number: 5994455
    Abstract: A process for the preparation of polyoxymethylene copolymers, wherein 1,3,5-trioxane is polymerized with generally known comonomers in the presence of a strong protonic acid initiator and in the presence of a formaldehyde dialkyl acetal, and wherein the initiator is dissolved in the formaldehyde dialkyl acetal before admixing to the trioxane and the comonomers.
    Type: Grant
    Filed: September 8, 1998
    Date of Patent: November 30, 1999
    Assignee: Ticonna GmbH
    Inventors: Karl-Friedrich Muck, Horst Roschert, Robert M. Gronner, Satyajit Verma, Michael G. Yearwood
  • Patent number: 5990185
    Abstract: A preformed stabilizer composition based on a precursor stabilizer obtainable by reacting a silicon atom containing compound of formula R.sub.n SiX.sub.4-n or R.sub.n Si((--OSi(R.sup.1).sub.2).sub.p X).sub.4-n wherein the R groups are independently saturated or unsaturated hydrocarbyl groups, at least one R group being an olefinically unsaturated hydrocarbyl group; R.sup.1 is a hydrocarbyl group, X is a C.sub.1 to C.sub.10 alkoxy group, n is an integer from 1 to 3 and p is an integer greater than zero, with a polyether polyol having an average molecular weight in excess of 400 and a hydroxyl number in the range 20 to 280 is used to manufacture polymer polyol compositions having a combination of (a) high polymer content, from 30 weight percent to 60 weight percent, (b) lower viscosities, typically less than 9,000 centipose, (c) product stability such that 100% passes through a 150 mesh screen, and (d) up to 100% of the polymer solids content passes through a 700 mesh screen.
    Type: Grant
    Filed: March 19, 1998
    Date of Patent: November 23, 1999
    Assignee: The Dow Chemical Company
    Inventor: Graeme Douglas Fogg
  • Patent number: 5990231
    Abstract: A one-component room temperature vulcanizable silicone rubber composition comprising (A) silanol end-terminated polyorganosiloxane base polymer, (B) organotriacyloxysilane cross-linker, (C) polysiloxane-polyether copolymer rheology modifier, and (D) particulate silica. The rheology modifying agent is particularly useful for adjusting the viscosity and plateau stress of the silicone rubber compositions.
    Type: Grant
    Filed: December 23, 1998
    Date of Patent: November 23, 1999
    Assignee: Dow Corning Corporation
    Inventors: Jon Vierling DeGroot, Jr., Carl Allen Fairbank
  • Patent number: 5973061
    Abstract: Aqueous silicone dispersions crosslinkable into elastomeric state by elimination of water therefrom, well adapted for the production of elastomer seals, e.g., for the building industry, include:(A) 100 parts by weight of an oil-in-water emulsion of an .alpha.,.omega.-(dihydroxy)polydiorganosiloxane stabilized with at least one anionic or nonionic surface-active agent, or mixture thereof;(B) 1 to 100 parts by weight of an hydroxylated silicone resin containing, per molecule, at least two different recurring structural units selected from among those of the formulae: R.sub.3 SiO.sub.0.5, R.sub.2 SiO, RSiO.sub.1.5 and SiO.sub.2, wherein the radicals R, which may be identical or different, are vinyl, phenyl or 3,3,3-trifluoropropyl radicals, or linear or branched chain alkyl radicals containing from 1 to 6 carbon atoms, said resin having a hydroxyl group weight content of from 0.1% to 10%;(C) 0 to 250 parts by weight of a nonsiliceous inorganic filler;(D) 0.
    Type: Grant
    Filed: February 28, 1991
    Date of Patent: October 26, 1999
    Assignee: Rhone-Poulenc Chimie
    Inventors: Michel Feder, Jean Ulrich
  • Patent number: 5962559
    Abstract: One-part alkoxy curing room temperature vulcanizable silicone compositions comprising the bi-functional compounds containing the 1-sila-azacyclopentane structure wherein the compounds function as alcohol scavengers in one-part alkoxy curing room temperature vulcanizable silicone compositions and the alcohol reaction products of these compounds function as adhesion promoters in such room temperature vulcanizable compositions.
    Type: Grant
    Filed: September 30, 1997
    Date of Patent: October 5, 1999
    Assignee: General Electric Company
    Inventors: Gary M. Lucas, Slawomier Rubinsztajn, Brian P. Bayly
  • Patent number: 5939478
    Abstract: The viscosity of a solvent is modified by thickening the solvent with a silicone latex. A silicone latex having a plurality of crosslinked polysiloxane particles is first prepared by mixing the siloxane polymer, a surfactant, and water; emulsifying the mixture to a gel phase; diluting the emulsion with water; adding a cure package (i.e., a catalyst, a crosslinker, or both, or a self catalytic crosslinker); and then without removing the water from the latex and after the particles of siloxane polymer in the latex have been cured, mixing the latex and solvent to thicken the solvent, forming viscous liquids, gels, and pastes. Water in the latex thickened solvent composition can be stabilized by adding a silicone polyether during mixing of the latex and the solvent.
    Type: Grant
    Filed: November 13, 1997
    Date of Patent: August 17, 1999
    Assignee: Dow Corning Corporation
    Inventors: James Anderson Beck, Vicky Sue Cobb, Cassie Emelia Cuthbert, Eric Jude Joffre, Virginia Kay O'Neil, Burt Michael Wrolson
  • Patent number: 5910525
    Abstract: A silicone rubber composition that cures into a highly flame-retardant silicone rubber with excellent electrical insulation characteristics and that does so without sacrificing mechanical strength. The silicone rubber composition comprises:(A) polyorganosiloxane described by average formula R.sub.a SiO.sub.(4-a)/, where R denotes substituted and unsubstituted monovalent hydrocarbon groups and a is a number from 1.95 to 2.05 and having at least 2 silicon-bonded alkenyl groups in each molecule;(B) microparticulate silica;(C) the reaction mixture of(a) a platinum compound and(b) a compound containing a carbon-carbon double bond and a carbon-carbon triple bond;(D) curing agent, and optionally(E) a triazole compound.
    Type: Grant
    Filed: July 17, 1997
    Date of Patent: June 8, 1999
    Assignee: Dow Corning Toray Silicone Co., Ltd.
    Inventors: Takao Matsushita, Osamu Takuman
  • Patent number: 5908592
    Abstract: A liquid silicone rubber base including (A) an alkenyl-containing organopolysiloxane, (B) a reinforcing silica filler, (C) a mixing assistant in the form of a silanol-containing compound, (E) an organohydrogen polysiloxane, (f) a platinum catalyst and optionally, (D) a wetting auxiliary catalyst is prepared by previously mixing 10-120 parts of component (A) with 1-35 parts of component (C) and 0-35 parts of component (D) to form a premix liquid, mixing the premix liquid with 100 parts of component (B) to form a premix power, and kneading the premix powder with the remainder of component (A). By adding a curing agent of organohydrogenpolysiloxane/platinum catalyst to the liquid silicone rubber base, there is obtained a liquid silicone rubber composition having improved fatigue endurance.
    Type: Grant
    Filed: November 6, 1997
    Date of Patent: June 1, 1999
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Kenichi Kimura, Takeo Yoshida, Manabu Narumi, Masaya Arakawa
  • Patent number: 5907013
    Abstract: The methods of forming a chemically adsorbed film by contacting a substrate with a solution mixture containing an alkoxysilane surface active agent, a non-aqueous solvent and a silanol-condensing catalyst to form a film covalently bonded to the substrate via siloxane bonds. These methods do not generate hydrochloric acid gas in forming the films and allow practical reaction rates.
    Type: Grant
    Filed: July 20, 1998
    Date of Patent: May 25, 1999
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventor: Kazufumi Ogawa
  • Patent number: 5877256
    Abstract: The instant invention pertains to a liquid silicone rubber coating composition for application to air bags that is comprised of (A) a diorganopolysiloxane having at least 2 alkenyl groups in each molecule, (B) an organopolysiloxane resin, (C) an inorganic filler, (D) an organohydrogenpolysiloxane having at least 2 silicon-bonded hydrogen atoms in each molecule, (E) a platinum group metal catalyst, and (F) an epoxy group-containing organosilicon compound. The liquid silicone rubber coating composition of the instant invention is capable of coating synthetic air bag fabrics without the use of a diluting solvent and at the same time that has an excellent adhesion to and infiltrability into synthetic air bag fabrics.
    Type: Grant
    Filed: January 22, 1993
    Date of Patent: March 2, 1999
    Assignee: Dow Corning Toray Silicone Co., Ltd.
    Inventors: Akito Nakamura, Yuichi Tsuji
  • Patent number: 5872203
    Abstract: A 100% solids polyurethane adhesive composition for bonding polymeric roofing materials to roof-deck substrates is provided which includes two components. The first component comprises a monomeric or polymeric diisocyanate, or a polyurethane prepolymer formed by the reaction of the monomeric or polymeric diisocyanate with a polyol. The second component comprises a polyol selected from the group consisting of a polyether or polyester polyol, an alkanolamine diol, a hydroxyl-terminated homopolymer of polybutadiene, and mixtures thereof. The first and second components are combined such that the ratio of isocyanate groups in the first component to the ratio of hydroxyl groups in the second component is from about 0.5:1 to 1.5:1.
    Type: Grant
    Filed: September 25, 1995
    Date of Patent: February 16, 1999
    Assignee: ADCO Products, Inc.
    Inventors: Wei-Jian Wen, Brian Jonathan Briddell, Kathleen Louise Lamb
  • 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: 5852095
    Abstract: Disclosed is an aqueous, silicone-modified acrylate polymer emulsion, which is an acrylate polymer emulsion produced by subjecting a monomer system (A) comprising an acrylate monomer selected from the group consisting of an acrylic ester, a methacrylic ester and a mixture thereof to emulsion polymerization in an aqueous medium in the presence of emulsifier (B) selected from the group consisting of a sulfonic acid group-containing ethylenically unsaturated monomer, a sulfonate group-containing ethylenically unsaturated monomer, and a mixture thereof, wherein the acrylate polymer emulsion is silicone-modified using a specific, silicone structure-containing modifier (C) during or after the emulsion polymerization.
    Type: Grant
    Filed: July 10, 1996
    Date of Patent: December 22, 1998
    Assignee: Asahi Kasei Kogyo Kabushiki Kaisha
    Inventors: Toyoaki Yamauchi, Yasuyuki Kamiyama
  • Patent number: 5840805
    Abstract: A highly storage-stable room-temperature-curable organopolysiloxane composition that cures to yield a product whose surface resists staining and that does not cause staining of the neighboring regions of the substrate in contact with said cured product. The organopolysiloxane composition is made from a polydiorganosiloxane, an imidazolinyl-functional organosiloxane, a filler, and a crosslinking compound which is a Si-bonded hydrolyzable group-containing organosilane or organosiloxane oligomer.
    Type: Grant
    Filed: October 25, 1995
    Date of Patent: November 24, 1998
    Assignee: Dow Corning Toray Silicone Co., Ltd.
    Inventors: Hisataka Nakashima, Shigeki Sugiyama
  • Patent number: 5827921
    Abstract: A novel silicone-based coating composition in the form of an aqueous emulsion is proposed which is capable of giving a rubber-like cured coating film of excellent mechanical strengths and flexibility on the surface of various substrate materials exhibiting high adhesive bonding thereto. The composition comprises:(a) water as the dispersion medium of the emulsion; and(b) a combination of the ingredients as the dispersed phase comprising:(A) 100 parts by weight of an organopolysiloxane having, in a molecule, at least two alkenyl groups bonded to the silicon atoms;(B) from 0.05 to 20 parts by weight of an organohydrogen polysiloxane having, in a molecule, at least two hydrogen atoms directly bonded to the silicon atoms;(C) from 1 to 100 parts by weight of a colloidal silica or a polyorganosilsesquioxane;(D) from 0.5 to 20 parts by weight of a reaction product of an amino group-containing organosilane compound and a carboxylic acid anhydride compound; and(E) from 0.
    Type: Grant
    Filed: November 27, 1996
    Date of Patent: October 27, 1998
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Yoshihito Osawa, Sachiko Nezu, Yoshinobu Takahashi, Satoshi Kuwata
  • Patent number: 5817740
    Abstract: New polyester composition for new polyester staple fiber that provides fabrics having a combination of excellent pilling performance, aesthetics and tactility ("hand"). Preferred fibers have non-round cross-sections that are retained, especially such non-round cross-sections having multi-grooved scalloped-oval cross-sections that provide fabrics having outstanding comfort qualities of moisture-management, dryness and comfort, along with minimal pilling.
    Type: Grant
    Filed: December 17, 1997
    Date of Patent: October 6, 1998
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Harvey Gene Anderson, Arun Pal Aneja, Robert Lee Edmundson, Adrian Charles Snyder
  • Patent number: 5814695
    Abstract: Condensation curable silicone mold making compositions containing an olefin or acetylene polymerization inhibitor have a longer useful life for making casts from curable resins comprising a polymerizable olefin relative to compositions where such a polymerization inhibitor is absent. Particularly preferred polymerization inhibitors are the esters of thiodipropionic acid and silicon polysulfides.
    Type: Grant
    Filed: January 21, 1997
    Date of Patent: September 29, 1998
    Assignee: General Electric Company
    Inventors: John J. Fitzgerald, Bruce C. Kuhl, Philip J. McDermott, Robert A. Smith
  • Patent number: 5811487
    Abstract: Low molecular weight siloxane fluids are thickened by silicone elastomers. The silicone elastomers are made by crosslinking reactions of .tbd.Si--H containing siloxanes and an unsaturated hydrocarbon such as an alpha, omega-diene, in the presence of a low molecular weight siloxane fluid. The .tbd.SiH siloxane is first partially reacted with a mono-alkenyl functionalized polyether. It is then crosslinked by the alpha, omega-diene, in the presence of the low molecular weight siloxane fluid. An elastomer, i.e. gel, with polyether groups is produced. The elastomer can be swollen with the low molecular weight siloxane fluid under shear force, to provide a uniform silicone paste. The silicone paste has excellent spreadability upon rubbing, and possesses unique rheological properties in being thixotropic and shear thinning. The silicone paste can be easily emulsified with water to form a stable uniform emulsion, without using a surfactant to allow normally immiscible materials to become intimately mixed.
    Type: Grant
    Filed: December 16, 1996
    Date of Patent: September 22, 1998
    Assignee: Dow Corning Corporation
    Inventors: William James Schulz, Jr., Shizhong Zhang
  • Patent number: 5807922
    Abstract: Novel organosilane derivatized long-chain compounds containing halosilane and hydroxysilane groups are disclosed and claimed. A process for the syntheses of these novel compositions is also disclosed, which involves simple one-pot hydrosilylation reaction of substituted halosilanes with substituted long-chain olefinic compounds, and subsequent hydrolysis to form surface active silanol derivatives. Preferred embodiments include organosilane derivatives of fatty acids derived from tung oil, high erucic acid rape seed oil, and linseed oil. These compositions feature high surface activity in forming stable organic/water emulsions of various difficultly emulsifiable materials as compared with conventional emulsifying agents. These compositions are useful as reactive-dispersants, defoamers, reactive-surfactants in emulsion polymerization, crosslinkers, film formers, gloss enhancers, anticorrosive additives, adhesion promoters and as general property enhancers in coatings, adhesives and inks.
    Type: Grant
    Filed: October 30, 1996
    Date of Patent: September 15, 1998
    Assignee: University of Southern Mississippi
    Inventors: Shelby Freland Thames, Kamlesh Gopichand Panjnani, Rajan Hariharan
  • Patent number: 5770640
    Abstract: Finishing agents comprise the combination of an alkoxysilane surface active agent, a silanol condensing catalyst, and a nonaqueous liquid or solid medium, or the combination of an alkoxysilane surface active agent, an acid catalyst and a liquid or solid medium. In the latter embodiment, it is preferred that at least one of the alkoxysilane surface active agent and the acid catalyst be microencapsuled. The finishing agent permits formation of chemically adsorbed protecting films. Such protecting films are used for substrates of such equipments as electronics products, electric domestic products, automobiles, industrial equipment, mirrors, lenses for glasses and the like. The protecting films have a durability and heat, weather and abrasion resistance, and also water and oil repellent properties.
    Type: Grant
    Filed: January 2, 1997
    Date of Patent: June 23, 1998
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventor: Kazufumi Ogawa
  • Patent number: 5756562
    Abstract: A novel silicone system comprising a methoxy terminated silane or polysiloxane, an adhesion promoter and water, useful as a filler alone or in combination with other fillers is disclosed.
    Type: Grant
    Filed: August 21, 1996
    Date of Patent: May 26, 1998
    Assignee: General Electric Company
    Inventors: Michael Anthony Lucarelli, William John Raleigh
  • Patent number: 5738857
    Abstract: Cosmetic compositions which comprise waxy organosiloxanes, which are solid at room temperature, of the formulaR.sup.1 R.sub.2 Si--O--SiR.sub.2 R.sup.1 (I),in whichR can be identical or different and represents an alkyl radical having 1 to 4 carbon atoms andR.sup.1 can be identical or different and represents a linear alkyl radical having at least 16 carbon atoms,volatile organosiloxanes chosen from the group comprising hexamethyldisiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane and mixtures thereof, and optionally other substances.
    Type: Grant
    Filed: February 6, 1996
    Date of Patent: April 14, 1998
    Assignee: Wacker-Chemie GmbH
    Inventors: Johann Sejpka, Annemarie Huber
  • Patent number: 5723572
    Abstract: A process for the preparation of a linear alternating copolymer of carbon monoxide with ethene and another olefinically unsaturated compound (A) wherein a copolymer of which the molar ratio (r.sub.1) of the monomer units originating in the olefinically unsaturated compound A to the monomer units originating in ethene is in the range of from 1:100 to 1:3, is prepared by contacting the monomers in the presence of a liquid diluent with a catalyst composition which is based on(a) a source of a Group VIII metal, and(b) a bidentate ligand of the general formula R.sup.1 R.sup.2 M.sup.1 --R--M.sup.2 R.sup.3 R.sup.4 (I) wherein M.sup.1 and M.sup.2 independently represent a phosphorus, arsenic or antimony atom, R.sup.1, R.sup.2, R.sup.3 and R.sup.4 independently represent unsubstituted or substituted hydrocarbyl groups and R represents a bivalent bridging group which consists of three atoms in the bridge of which the middle atom is a carbon or silicon atom which carries two monovalent substituents R.sup.5 and R.sup.
    Type: Grant
    Filed: June 17, 1996
    Date of Patent: March 3, 1998
    Assignee: Shell Oil Company
    Inventors: Erwin Paulus Petrus Bleeker, Johannes Adrianus Maria Van Broekhoven, Maria Barbara Hendrica Crijnen-Beers Van
  • Patent number: 5708054
    Abstract: A two-part composition comprising a liquid composition (I) composed of the components (A), (C), and (E) described below and a liquid composition (II) composed of the components (A) (B), (C), and (D) described below, which yield upon mixing a curable liquid silicone composition comprising(A) an alkenyl-substituted poyorganopolysiloxane;(B) a hydrogen-substituted organopolysiloxane in an amount that provides 0.3 to 10 moles silicon-bonded hydrogen from component (B) per 1 mole alkenyl in component (A);(C) an inorganic filler that has a specific surface of 50 to 500 m.sup.2 /g;(D) an alkoxy-substituted organopolysiloxane; and(E) platinum catalyst in a quantity sufficient to cure the instant composition;wherein the curable silicone composition that results when liquid composition (I) and liquid composition (II) are mixed, is thixotropic and has a viscosity, immediately upon the mixing that is greater than the viscosity of liquid composition (II).
    Type: Grant
    Filed: October 28, 1996
    Date of Patent: January 13, 1998
    Assignee: Dow Corning Toray Silicone Co., Ltd.
    Inventors: Katsutoshi Mine, Takae Takeuchi, Kimio Yamakawa
  • Patent number: 5705561
    Abstract: A crosslinkable acrylic copolymer sealant composition has a stabilized viscosity in that the viscosity does not unduly increase nor does the material gel on storage for periods of time up to and including one year. The stabilized viscosity is unexpectedly achieved by adding moisture scavengers either before and/or during the polymerization of the various monomers. The sealant composition is suitable for use in high movement applications as well as to metal and glass substrates.
    Type: Grant
    Filed: June 17, 1996
    Date of Patent: January 6, 1998
    Assignee: Tremco Incorporated
    Inventors: Waldemar E. Kozakiewicz, David K. Potter, Steven A. Young