Material Contains An Alcohol, Alcoholate, Or Ether Compound Patents (Class 528/20)
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Patent number: 6805914Abstract: This invention relates to silicone coating composition comprising a solventless silicone coating composition and a liquid silicone mist suppressant composition obtained by a method comprising reacting a large excess of at least one organohydrogensilicon compound containing at least three silicon-bonded hydrogen groups with at least one compound containing at least two alkenyl groups in the presence of a platinum group metal-containing catalyst.Type: GrantFiled: November 26, 2002Date of Patent: October 19, 2004Assignee: Dow Corning CorporationInventors: Joseph Norbert Clark, Robert Alan Ekeland, Michael Sean Owens, Paul Cornelius Van Dort
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Patent number: 6780955Abstract: The present invention provides a process for preparing a mixture, which mixture includes catenate and cyclic siloxanes of formula I R3Si—O—(SiR2—O—)mSiR3 (I) and cyclic siloxanes of formula II wherein m is an integer from 0 to 40 and n is an integer from 2 to 40, wherein R2 and R3 are each independently an organic functional group selected from the group including alkyl, aryl, vinyl, and alkoxy groups, and wherein there is not more than one vinyl group or aryl group per silicon atom, said process including a controlled hydrolysis, condensation or cocondensation reaction of at least one monomeric silane in alcoholic solution in the presence of an acidic catalyst, which reaction includes contacting alcohol, water, and at least one chlorosilane component selected from the group including (i), (ii), (iii): (i) at least one arylchlorosilane; (ii) at least one admixture selected from the group including alkylchlorosilane and arylchlorosilane, arylchlorosiType: GrantFiled: January 23, 2003Date of Patent: August 24, 2004Assignee: Degussa AGInventors: Dieter Barfurth, Helmut Mack
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Patent number: 6777471Abstract: The invention concerns organopolysiloxane compositions obtainable by the following successive steps: step 1: reacting (i) at least a linear diorganopolysiloxane reagent A comprising a hydroxyl group at each chain end; (2i) and at least a hydroxyl organopolysiloxane resin B having a weight content of hydroxyl group ranging from 0.1 to 10%; (3i) with at least a polyalkoxysilane C; step 2: introducing in the medium of step 1 (6i) a mineral filler G based on amorphous silica and (7i) an efficient amount of a catalyst H consisting of at least one titanium organic derivative; step 3: the resulting mixture is subjected to devolatilization carried out at a pressure less than atmospheric pressure.Type: GrantFiled: August 7, 2001Date of Patent: August 17, 2004Assignee: Rhodia ChimieInventors: Bernard Dalbe, Sylvie Michiels
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Patent number: 6774202Abstract: Provided are polyorganosilsesquioxane and process for preparing the same. The polyorganosilsesquioxane is obtained by various methods including polymerization of an organosilanetriol as starting materials. The polyorganosilsesquioxane has convenience in handling and controlling the rate of polymerization, and structure of highly regular form, and be imparted high functionality and various characteristics as compared to a conventional polyorganosilsesquioxane.Type: GrantFiled: August 19, 2002Date of Patent: August 10, 2004Assignee: Intersilicone, Ltd.Inventor: Eung-Chan Lee
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Patent number: 6767982Abstract: A mixture of organoalkoxysiloxanes of formula I: wherein R and R″ are identical or different and are methyl, ethyl, vinyl, n-propyl, i-propyl, &ggr;-chloropropyl, n-butyl, i-butyl, n-pentyl, i-pentyl, n-hexyl, i-hexyl, n-heptyl, i-heptyl, n-octyl, i-octyl, hexadecyl, octadecyl or alkoxy, R′ represents methyl or ethyl, n and m are identical or different and each is 0 or an integer ranging from 1 to 20, on the condition that (n+m)≧2, is prepared by: reacting in a first stage the constituents of (i) an organotrichlorosilane or a mixture of organotrichlorosilanes or a mixture of at least one organotrichlorosilane and tetrachlorosilane, (ii) water and (iii) alcohol, combined in a molar ratio (i):(ii):(iii) of 1:(0.59 to 0.95):(0.5 to 100), at a temperature of 0 to 150° C.Type: GrantFiled: November 14, 2001Date of Patent: July 27, 2004Assignee: Degussa AGInventors: Burkhard Standke, Michael Horn
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Patent number: 6635353Abstract: A novel siloxane polymer having at least a portion of the following formula: wherein R13 is selected from hydrogen, lower alkyl group, benzyl, and phenyl group; R14 and R15 are independently alkylene groups of 1 to 6 carbon atoms, xylylene, and phenylene groups of 6 to 12 carbon atoms, and; m and n are integers independently selected from 1 through 6. These polymers are useful as abrasion resistant coatings, especially for ophthalmic lenses.Type: GrantFiled: June 18, 2001Date of Patent: October 21, 2003Assignee: Vision-Ease Lens, Inc.Inventor: Martin L. Hage
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Patent number: 6605683Abstract: A process for producing a solution of a silicone oligomer which comprises adding to an alkoxysilane, as a self-catalyst, a solution comprising a silicon compound which is soluble in hydrophilic solvents and has an average structural unit represented by R1nSiOx/2(OH)y(OR2)z, wherein R1 represents an alkyl group having 1 to 3 carbon atoms, vinyl group or phenyl group, a plurality of R1 may represent a same group or different groups, R2 represents an alkyl group having 1 to 3 carbon atoms, a plurality of R2 may represent a same group or different groups and n, x, y and z represent numbers satisfying relations: 0≦n<3, 0<x<4, y>0, z≧0 and y+z=4−n−x, and hydrolyzing and polycondensing the alkoxysilane; and a film of an organopolysiloxane formed from the solution of a silicone oligomer.Type: GrantFiled: August 7, 2001Date of Patent: August 12, 2003Assignee: Nihon Yamamura Glass Co., LTDInventor: Zuyi Zhang
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Patent number: 6586535Abstract: This invention relates to silicone coating composition comprising a solventless silicone coating composition and a liquid silicone mist suppressant composition obtained by a method comprising reacting at least one organohydrogensilicon compound containing at least two silicon-bonded hydrogen groups with a large excess of at least one organoalkenylsiloxane containing at least three silicon-bonded alkenyl groups in the presence of a platinum group metal-containing catalyst.Type: GrantFiled: June 22, 2000Date of Patent: July 1, 2003Assignee: Dow Corning CorporationInventors: Joseph Norbert Clark, Paul Cornelius Van Dort
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Patent number: 6573355Abstract: The invention discloses a method for the preparation of an organopolysiloxane having a branched molecular structure which comprises the steps of: (A) Mixing (A1) an organopolysiloxane represented by the average unit formula [R13SiO½]m[R1SiO{fraction (3/2)}]n[R1(R2O)SiO]q, in which R1 is a monovalent hydrocarbon group, R2 is a hydrogen atom, methyl group or ethyl group and the subscripts m, n and q are each 0 or a positive number with the proviso that (n+q)/m is from 0.6 to 1.5 and q/(m+n) is 0 or a positive number not exceeding 0.Type: GrantFiled: July 11, 2001Date of Patent: June 3, 2003Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Shinji Irifune, Masahiko Ogawa
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Publication number: 20030049193Abstract: The present invention provides a thermal stable low elastic modulus material, which has high thermal stability, is little in change in dynamic characteristics such as coefficient of thermal expansion and elastic modulus within a temperature of −50° C. to 300° C., has an elastic modulus at room temperature of 2-0.01 GPa and is high in reliability of electric insulation regardless of a temperature fluctuation, and provides a semiconductor device using the same.Type: ApplicationFiled: March 15, 2002Publication date: March 13, 2003Inventors: Yuichi Satsu, Morimichi Umino, Takumi Ueno, Akio Takahashi, Akira Nagai, Toshiya Satoh, Shinji Yamada, Kazuhiro Suzuki
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Patent number: 6525130Abstract: A process for producing a polymerized silicone fluid comprises the steps of charging to a reaction vessel a hydroxy-terminated silicone fluid, an ethoxy-or methoxy-terminated functional silane, a basic catalyst, and a surfactant package having a cloud point of between 2 to 20° C. below the reaction temperature needed to react the functional silane with the hydroxy-terminated silicone fluid; heating the contents of the reaction vessel to a temperature that is about 2 to about 20° C. above the cloud point of the surfactant package to copolymerize the silicone fluid and functional silane; terminating the copolymerization reaction; and diluting the product with water to form an emulsion.Type: GrantFiled: September 24, 2001Date of Patent: February 25, 2003Assignee: Omnova Solutions Inc.Inventor: Robert C. Flowers
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Patent number: 6511753Abstract: In a process for producing a product coated with a water repellent film which comprises applying on a base substrate a coating liquid containing a silicon alkoxide, a fluoroalkyl group-containing silane compound and an acid dissolved in a solvent and drying; the process for producing a product coated with a water repellent film being characterized in that said coating liquid contains: said silicon alkoxide or a hydrolysate thereof is present at a concentration equivalent to 0.01 to 2% by weight of silica formed by hydrolysis of the silicon alkoxide, said fluoroalkyl group-containing silane compound is present at a concentration equivalent to 0.00001 to 0.15% by weight of silica formed by hydrolysis of the fluoroalkyl group-containing silane compound, 0.003-3 normality of said acid, and 0-20% by weight of water. The invention further provides water repellent products having a good rolling properly of water drops, a high scratching resistance and a high weatherability prepared by the process of the invention.Type: GrantFiled: December 1, 2000Date of Patent: January 28, 2003Assignee: Nippon Sheet Glass Co., Ltd.Inventors: Toyoyuki Teranishi, Kazutaka Kamitani, Takashi Sunada
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Patent number: 6489407Abstract: This invention relates to silicone coating composition comprising a solventless silicone coating composition and a liquid silicone mist suppressant composition obtained by a method comprising reacting a large excess of at least one organohydrogensilicon compound containing at least three silicon-bonded hydrogen groups with at least one compound containing at least two alkenyl groups in the presence of a platinum group metal-containing catalyst.Type: GrantFiled: June 22, 2000Date of Patent: December 3, 2002Assignee: Dow Corning CorporationInventors: Joseph Norbert Clark, Robert Alan Ekeland, Michael Sean Owens, Paul Cornelius Van Dort
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Patent number: 6476174Abstract: A process for preparing silica-based organic-inorganic hybrid resin using sol-gel process. Phenol is used as catalyst to reduce the gel time of the sol-gel process and cyclosiloxane is used as modifier to increase the toughness of the resultant inorganic-organic hybrid resin.Type: GrantFiled: June 15, 2001Date of Patent: November 5, 2002Assignee: Industrial Technology Research InstituteInventors: Ming-Shi Lee, Chin-I Lin, Chao-Kang Chang, Ching-Jiuh Kang, Kuei-Lan Peng
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Publication number: 20020120060Abstract: The method consists in hydrolysing an initial volume Vsi of a precursor material comprising at least one polyalkoxysilane with a quantity of water such that 1 x ⁢ ⁢ H 2 ⁢ O x ⁢ Si ≥ 10Type: ApplicationFiled: June 15, 2001Publication date: August 29, 2002Applicant: Essilor International Compagnie Generale D'OptiqueInventors: John Biteau, Jean-Pierre Boilot, Frederic Chaput
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Patent number: 6406793Abstract: A silicone pressure sensitive adhesive composition utilizing addition reaction between alkenyl groups of alkenyl group-containing diorganopolysiloxanes and SiH groups of organohydrogenpolysiloxanes, which comprises (A) diorganopolysiloxanes containing alkenyl groups the number of which is on average at least two a molecule, (B) an organopolysiloxane comprising R23SiOC.5 units, wherein R2 is an unsubstituted or substituted 1-10C monovalent hydrocarbon group, and SiO2 units in a R23SiOC.5/SiO2 ratio of from 0.6 to 1.Type: GrantFiled: September 22, 2000Date of Patent: June 18, 2002Assignee: Shin-Etsu Chemical Co., Ltd.Inventor: Shunji Aoki
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Patent number: 6403749Abstract: An organoxy-terminated organopolysiloxane of the general formula (A): wherein R is a monovalent hydrocarbon group, R1 is a monovalent hydrocarbon group of 1-18 carbon atoms, and R2 is an organic group of 1-18 carbon atoms, and “a” is an integer of 0, 1 or 2, is prepared by reacting an organopolysiloxane of the formula: HO(R2SiO)nH having a viscosity of 10-100,000 centistokes at 25° C. with an organoxysilane of the formula: (R2O)4-a—Si—(R1)a or a partial hydrolyzate thereof in the presence of a tetraalkoxytitanium.Type: GrantFiled: November 17, 2000Date of Patent: June 11, 2002Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Masatoshi Miyake, Chinami Matsui, Kenichi Kimura, Hironao Fujiki
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Patent number: 6376634Abstract: A composition for film formation which is useful as an interlayer insulating film material in the production of semiconductor devices and the like, and gives a coating film having excellent uniformity, low dielectric constant, low leakage current and excellent storage stability; and a material for insulating film formation using the composition. The composition comprises (A) a product of hydrolysis and condensation obtained by hydrolyzing and condensing at least one compound selected from the group consisting of (A-1) compounds represented by the formula (1): R1aSi(OR2)4−a, and (A-2) compounds represented by the formula (2): R3b(R4O)3−bSi—(R7)d—Si(OR5)3−cR6c; and (B) a compound represented by the formula (3): R8O (CHCH3CH2O)eR9.Type: GrantFiled: June 2, 2000Date of Patent: April 23, 2002Assignee: JSR CorporationInventors: Michinori Nishikawa, Kinji Yamada, Mayumi Kakuta, Yasutake Inoue, Masahiko Ebisawa, Satoko Hakamatsuka, Kentarou Tamaki
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Patent number: 6335412Abstract: The present invention provides a curable composition comprising a reactive silicon group-containing saturated hydrocarbon polymer which features a high curing rate and a high degree of adhesiveness to various adherends. This invention is relates to a curable composition which comprises (A) a saturated hydrocarbon polymer having at least one silicon-containing group containing a hydroxyl or hydrolyzable group bound to the silicon atom and capable of forming a siloxane bond, (B) a tetravalent tin compound, and (C) a silicon compound of the general formula (1) R1aSi(OR2)4-a (1) wherein R1 and R2 each independently represents a substituted or unsubstituted hydrocarbon group containing 1 to 20 carbon atoms; a represents any of 0, 1, 2 and 3.Type: GrantFiled: April 26, 2000Date of Patent: January 1, 2002Assignee: Kaneka CorporationInventors: Toshihiko Okamoto, Makoto Chiba, Junji Takase
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Patent number: 6329490Abstract: Disclosed are polyhedral organosilicon compounds which are possible to be polymerized and can form a film excellent in adhesiveness to a substrate, having a high hardness, a high transparency and having water and oil repellency, and comprise organofluoro groups or both of organofluoro groups and reactive functional groups, the compounds being soluble in an organic solvent and stable. Organosilicon compounds which have perfluoroalkyl groups or both perfluoroalkyl groups and reactive functional groups and which have a polyhedral structure have the following formulas of (I), (II) and (III): [Rf1—X1—(CH2)a—SiO1.5]m (I) [Rf1—X1—(CH2)a—SiO1.5]m[Rf2—(X2)c—(CH2)b—SiO1.5]n (II) [Rf1—X1—(CH2)a—SiO1.5]m[R—(X2)c—(CH2)b—SiO1.Type: GrantFiled: March 31, 2000Date of Patent: December 11, 2001Assignees: Mitsubishi Materials Corporation, Dai Nippon Toryo Co., Ltd.Inventors: Yukiya Yamashita, Kenji Hayashi, Masaoki Ishihara
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Patent number: 6306502Abstract: A coating composition forming a abrasion resistant coating comprising (A) an ultraviolet-curable silicone prepared by chemically modifying particulate colloidal silica with a specific silane compound, (B) a monomer mixture comprising a (meth)acrylate having a specific isocyanate skeleton and a urethane poly(meth)acrylate having an alicyclic skeleton, and (C) a photo-polymerization initiator. By using a urethane poly(meth)acrylate having an alicyclic skeleton as part of the component (B) and the component (A) having an enhanced reactivity of chemical modification, the compatibility of the component (A) with the component (B) is improved to give a cured coating with excellent wear resistance, weather resistance and durability.Type: GrantFiled: March 19, 1998Date of Patent: October 23, 2001Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Hiroshi Fukushima, Misao Tamura, Osamu Takemoto, Katsumi Yonekura
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Patent number: 6277941Abstract: An organopolysiloxane composition comprising (1) 100 parts by weight of an organopolysiloxane having at least two unsaturated groups per molecule, (2) 0.1-30 parts by weight of a liquid organohydrogenpolysiloxane having at least two hydrogen atoms attached directly to silicon atoms (≡Si—H bonds) per molecule, (3) 0.1-6.0 parts by weight of an addition reaction control agent prepared by mixing (a) an acetylene alcohol and (b) a silylated acetylene alcohol in a (b)/(a) ratio ranging from greater than 5 to no greater than 100 on a weight basis, and (4) a catalytic amount of a platinum metal catalyst.Type: GrantFiled: November 24, 1999Date of Patent: August 21, 2001Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Shinji Irifune, Kouichi Nakazato, Kenichi Isobe
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Patent number: 6265598Abstract: A hydrolyzable group end-blocked organopolysiloxane is prepared by reacting (A) an organopolysiloxane having a silanol group at each end of its molecular chain with (B) an organosilicon compound having hydrolyzable groups or a partial hydrolyzate thereof in the presence of (C) a condensation catalyst. Use is made of a vibratory mixer comprising a conduit through which a fluid flows in an axial direction and an agitating element disposed in the conduit for reciprocal motion in the flow direction. A reactant mixture of necessary components is introduced into the conduit where the components are vibro-agitated by the agitating element while reaction takes place.Type: GrantFiled: October 13, 2000Date of Patent: July 24, 2001Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Kenichi Kimura, Masatoshi Miyake, Nobuhiko Kodana
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Patent number: 6251486Abstract: An improved siloxane-based composition for use as a low &kgr; dielectric material in integrated circuit applications is provided, the composition exhibiting desirable thermal mechanical stability compared to conventional siloxane-based low-&kgr; compositions. Specifically, the invention provides a modified methylsilsesquioxane composition suitable for higher temperature applications than a composition formed from only methylsilsesquioxane. The modified oligomer is characterized by the pendant group ratio A:B:C, where A represents the percentage of pendant groups that are methyl and is about 13 to about 67, B represents the percentage of pendant groups that are dimethyl and is greater than 0 to about 33, and C represents the percentage of pendant groups that are phenyl and is greater than 0 to about 67. The presence of dimethyl and phenyl pendant groups provides a molecular structure that has improved crack-resistance compared to an all-methyl silsesquioxane.Type: GrantFiled: July 11, 1999Date of Patent: June 26, 2001Assignee: Agere Systems Guardian Corp.Inventors: Edwin Arthur Chandross, Valerie Jeanne Kuck
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Patent number: 6235861Abstract: An addition-curing organopolysiloxane composition which has excellent shelf stability around room temperature, rapidly cures by moderate ultraviolet irradiation or heating, and is suitable for use as the one solution type. A reaction inhibitor is added to the composition comprising an alkenylated organopolysiloxane, an organohydrogenpolysiloxane, and a platinum catalyst. The inhibitor is a thiophene compound, an isocyanide compound, a cyclic thioether compound, a cyclic azo ether compound, an imino compound, or a polymer which has, in the molecule, functional groups each containing one or more sulfur, nitrogen, or phosphorus atoms and has an average molecular weight of 1,000 to 200,000, and which is capable of forming a complex with a platinum atom.Type: GrantFiled: June 16, 1999Date of Patent: May 22, 2001Assignee: Three BondInventor: Katsuhiko Kishi
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Patent number: 6228921Abstract: A process is disclosed for the production of compounds based on hydrolyzable silanes containing epoxy groups. The process involves adding one of the following substances to a pre-hydrolyzed silicon compound A with at least one hydrolytically non-separable group which includes an epoxy ring: i) a particulate substance B which can be selected from oxides, oxyhydrates, nitrides or carbides of Si, Al and B, and of transition metals, the particle size being 1-100 nm; ii) a surface-active agent, preferably non-ionic; iii) an aromatic polyol with an average molecular weight not exceeding 1000. The compounds obtained through this process can be used to produce coatings and molded bodies with a range of properties, in particular high scratch resistance, lasting hydrophilic characteristics, corrosion resistance, good adhesion and transparency.Type: GrantFiled: October 28, 1999Date of Patent: May 8, 2001Assignee: Institut für Neue Materialien Gemeinnützige GmbHInventors: Reiner Kasemann, Helmut Schmidt, Ertugrul Arpac, Volker Gerhard, Elisabeth Geiter, Georg Wagner
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Patent number: 6201093Abstract: Water-soluble, i.e. easily dispersible, amino-functional polyorganosiloxanes obtained by radical polymerization of vinyl compounds containing amino or ammonium groups onto polyorganosiloxanes which contain at least one mercapto group. They are suitable as textile finishing aids, surfactants and emulsifiers.Type: GrantFiled: January 20, 1999Date of Patent: March 13, 2001Assignee: Huels AktiengesellschaftInventors: Michael Messner, Holger Rautschek
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Patent number: 6187834Abstract: This invention relates to a radiation curable silicone coating composition comprising an alkoxylated resin-polymer organosilicone network containing radiation curable functionality and a cationic photoinitiator. The radiation curable silicone compositions of this invention are useful as fast curing low and high release coating compositions which are especially suitable for release of pressure sensitive adhesives.Type: GrantFiled: September 8, 1999Date of Patent: February 13, 2001Assignee: Dow Corning CorporationInventors: Leroy Elton Thayer, James Steven Tonge, Gary Allen Vincent
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Patent number: 6140446Abstract: A hydrosilylation catalyst is provided wherein a platinum catalyst is enclosed in a heat-fusible compound having a melting point of 40-200.degree. C. and containing an aliphatic unsaturated bond, carbonyl, carboxyl or thioether radical in a molecule. The catalyst is blended in organo-polysiloxane to form a silicone composition having both shelf stability and fast-curing capability.Type: GrantFiled: November 5, 1998Date of Patent: October 31, 2000Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Hironao Fujiki, Kei Miyoshi, Hironobu Muramatsu
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Patent number: 6124490Abstract: Ionically cross-linked silicone polymers of a thickened gel-like consistency are made by reacting a diamino containing polysiloxane with an acid containing reactant selected from itaconic acid or the ester derivative thereof; substituted or unsubstituted cyclic and ankydride; substituted or unsubstituted conjugated olefinic acid or mixtures of the same at an elevated temperature in the presence of a low molecular weight silicone oil or other solvent until an ionically cross-linked zwitterionic siloxane polymer of a gel-like consistency is formed.Type: GrantFiled: October 26, 1999Date of Patent: September 26, 2000Assignee: Mona Industries, Inc.Inventors: John L. Gormley, Abe Berger, Dennis L. Fost
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Patent number: 6113815Abstract: The composition formed by mixing an organosilane with an ether. Water-stabilized organosilane compounds. A water stable composition made from the ether and organosilane composition and water. A method of treating a substrate by mixing or contacting the substrate with the product, compound, or composition of this invention for a period of time sufficient for treatment of the substrate. A treated substrate having adhered thereto the product, compound, or composition of this invention. A method of dyeing and treating a substrate. A method of antimicrobially treating a food article. A method of antimicrobially coating a fluid container. A method of antimicrobially coating a latex medical article.Type: GrantFiled: July 16, 1998Date of Patent: September 5, 2000Assignee: Bioshield Technologies, Inc.Inventors: Jacques E. Elfersy, Joachim Berkner, Timothy C. Moses
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Patent number: 6107505Abstract: The present invention discloses a process for producing a polyorganosiloxane, which comprises adding an organochlorosilane to a uniform mixture comprising water and at least one kind of alcohol, to subject the organochlorosilane to a hydrolysis and condensation reaction. The organochlorosilane is preferably one represented by the following formula (1):R.sup.1 --Si(Cl).sub.3 (1)wherein R.sup.1 is a C.sub.1-30 straight chain saturated or unsaturated hydrocarbon group, a C.sub.1-30 branched chain saturated or unsaturated hydrocarbon group, a phenyl group, a cyclohexyl group, a C.sub.3-15 halogenated hydrocarbon group, an acryloxypropyl group or a methacryloxypropyl group.Type: GrantFiled: December 2, 1998Date of Patent: August 22, 2000Assignee: Chisso CorporationInventors: Kazuhiro Yoshida, Koichi Ayama, Nobumasa Ootake
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Patent number: 6075109Abstract: A method of forming a granular siloxane gel having reduced chloride content. The method comprises contacting a chlorosilicon mixture with an aqueous medium at a temperature within a range of about 50.degree. C. to 180.degree. C. to form a granular siloxane gel, and washing the granular siloxane gel with an aqueous solution comprising a surfactant having a HLB number within a range of about 1 to 28.Type: GrantFiled: December 17, 1998Date of Patent: June 13, 2000Assignee: Dow Corning CorporationInventors: Stuart Michael Bolland, Ollie William Marko
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Solvent-free two-liquid type normal temperature curable liquid polymer composition and a use thereof
Patent number: 6054546Abstract: 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: GrantFiled: February 3, 1998Date of Patent: April 25, 2000Assignee: Suzuki Sangyo Co., Ltd.Inventors: Tomio Suzuki, Kimie Watanabe -
Patent number: 6040369Abstract: A medical electrical lead and a reinforced silicone elastomer used therein. The silicone elastomer used therein is preferably made from a novel silica reinforced polysiloxane material, which after vulcanization by cross-linking exhibits improved mechanical properties. The medical electrical lead features a an electrode at a distal end thereof, a connector at a proximal end thereof and an elongated electrical conductor extending between the electrode and the connector, the conductor in electrical contact with the electrode at a distal end and in electrical contact with the connector at a proximal end, the conductor comprised of a plurality of wires or wire bundles wound in a multifilar coil configuration.Type: GrantFiled: June 2, 1999Date of Patent: March 21, 2000Assignee: Medtronic, Inc.Inventors: Mark J. Paulsen, Jennifer P. Miller, Michael J. Ebert
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Patent number: 6001214Abstract: In one aspect, this invention is a polyurethane sealant composition comprising (1) a urethane prepolymer having an isocyanate functionality of at least about 2.0 and a weight average molecular weight of at least about 2,000; and (2) a catalytic amount of (a) a substantially active hydrogen free glycol acid salt of a tertiary amine and an organo metallic compound, (b) a mixture of a substantially active hydrogen free glycol acid salt of a tertiary amine and an organo metallic compound and a second organometallic compound, or (c) a mixture of an organometallic compound with dimorpholinodialkyl ether or an dialkylmorpholinodialkyl ether.Type: GrantFiled: August 6, 1998Date of Patent: December 14, 1999Assignee: Essex Specialty Products, Inc.Inventors: Harry W. Hsieh, Syed Z. Mahdi
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Patent number: 5990188Abstract: The present invention provides the discovery of an improved radiation curable coating composition comprising at least one acrylic monomer, a photoinitiator, and an ultraviolet light absorber selected from triazine or a dibenzoyl resorcinol derivative or a mixture thereof, the dibenzoyl resorcinol derivative having the formula ##STR1## where Ar and Ar' are independently substituted or unsubstituted monocyclic or polycyclic aryl groups and R' is H or a linear or branched alkyl chain having less than about 10 carbons bearing a --Si(OR.sup.2).sub.3, where R.sup.2 is a C.sub.1 to C.sub.6 alkyl group.Type: GrantFiled: August 15, 1996Date of Patent: November 23, 1999Assignee: General Electric CompanyInventors: Gautam Ambalal Patel, James Edward Pickett, Gregory Ronald Gillette, George Frederic Medford
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Patent number: 5945497Abstract: A process for treating a plurality of by-product streams containing chlorosilicon compounds. The process comprises the steps of determining the average SiCl functionality of a plurality of by-product streams comprising chlorosilicon compounds, blending at least two of the by-product streams to form a blended by-product stream having an average SiCl functionality greater than or equal to 2.8, adding to the blended by-product stream a surfactant having a HLB number within range of about 3 to 28, and contacting the blended by-product stream with an aqueous medium at a temperature within a range of about 50.degree. C. to 120.degree. C. to form a granular siloxane gel.Type: GrantFiled: December 22, 1997Date of Patent: August 31, 1999Assignee: Dow Corning CorporationInventors: Ollie William Marko, Denise Lynne McClure
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Patent number: 5914192Abstract: This invention relates to a silicone release coating composition comprising an organopolysiloxane having at least 2 alkenyl groups in each molecule, an organopolysiloxane having at least 3 silicon-bonded hydrogen atoms in each molecule, a carbon-carbon triple bond-functional alcohol having a boiling point at ambient pressure of at least 140.degree. C., an organosilicon compound having at least 3 carbon-carbon triple bond-functional hydrocarbon groups bonded across oxygen to silicon, and a platinum catalyst. The silicone release coating compositions of this invention have excellent bath stability, form a very stable thin film on applicator rolls, cure rapidly even at relatively low temperatures, have stable curing characteristics during the course of bath aging, and exhibit stable release values during the course of bath aging.Type: GrantFiled: November 24, 1997Date of Patent: June 22, 1999Assignee: Dow Corning Toray Silicone Co., Ltd.Inventors: Nobuo Kaiya, Taku Koyama, Atsushi Togashi
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Patent number: 5880245Abstract: The present invention provides a process for the preparation of a reactive silicon group-containing polymer. A novel process for the preparation of the polymer includes allowing an alkylene oxide to undergo ring opening polymerization with an organopolysiloxane compound having an active hydrogen-containing functional group with which the alkylene oxide is reactive as an initiator in the presence of a catalyst to synthesize a polymer of organopolysiloxane and polyoxyalkylene, and then introducing a reactive silicon group into the polymer.Type: GrantFiled: November 13, 1997Date of Patent: March 9, 1999Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Masayuki Fujita, Hiroshi Iwakiri, Fumio Kawakubo
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Patent number: 5852137Abstract: In one aspect, this invention is a polyurethane sealant composition comprising (1) a urethane prepolymer having an isocyanate functionality of at least about 2.0 and a weight average molecular weight of at least about 2,000; and (2) a catalytic amount of (a) a substantially active hydrogen free glycol acid salt of a tertiary amine and an organo metallic compound, (b) a mixture of a substantially active hydrogen free glycol acid salt of a tertiary amine and an organo metallic compound and a second organometallic compound, or (c) a mixture of an organometallic compound with dimorpholinodialkyl ether or an dialkylmorpholinodialkyl ether.Type: GrantFiled: January 29, 1997Date of Patent: December 22, 1998Assignee: Essex Specialty ProductsInventors: Harry W. Hsieh, Syed Z. Mahdi
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Patent number: 5789515Abstract: A colorant composition has the structure ABXYZ, whereA is an organic chromophore;B is an electrophilic reactive group covalently bonded to A directly or through a linking group;X is a nucleophilic linking group covalently bonding B and YY is a poly(oxyalkylene)-polysiloxane copolymer; andZ is a terminal group for Y.The colorant composition can be prepared from a reactive dye AB which is reacted with XYZ, a poly(oxyalkylene)-polysiloxane copolymer.Type: GrantFiled: March 13, 1997Date of Patent: August 4, 1998Assignee: Milliken Research CorporationInventor: John D. Bruhnke
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Patent number: 5783609Abstract: A process which comprises reacting a high molecular weight polyorganosiloxane or a composition containing the same with an alkoxysilane and/or a partially hydrolyzed condensate thereof at a temperature of lower than 300.degree. C. in the presence of an alcoholate compound and recovering the resulting organoalkoxysilane and, in addition thereto, at least one of a distillable polyorganosiloxane low molecular weight compound, a non-volatile liquid polyorganosiloxane and a silica; and a process which comprises reacting a high molecular weight polyorganosiloxane or a composition containing the same with an alcoholate compound at a temperature of 50.degree. to 150.degree. C. in an anhydrous state and recovering the resulting distillable polyorganosiloxane low molecular weight compound and, in addition thereto, at least one of an organoalkoxysilane and a non-volatile liquid polyorganosiloxane.Type: GrantFiled: June 27, 1996Date of Patent: July 21, 1998Assignees: Tama Chemicals Co., Ltd., Toshiba Silicone Co., Ltd.Inventors: Tsurahide Cho, Yoshiro Ohta, Toshitsura Cho, Tohru Yamashita, Nobuaki Ohkawa, Makoto Nishida
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Patent number: 5719249Abstract: The present invention provides a reactive silicon group-containing polymer containing at least one reactive silicon group per molecule, the main chain of the polymer being essentially a copolymer of organopolysiloxane and polyoxyalkylene, which causes no macro phase separation during storage and gives a hardened material having an excellent weathering resistance, little residual tack and excellent coating adhesivity. The present invention provides a process for the preparation of the foregoing reactive silicon group-containing polymer. A novel process for the preparation of the polymer as defined above is provided, which comprises allowing an alkylene oxide to undergo ring opening polymerization with an organopolysiloxane compound having an active hydrogen-containing functional group with which said alkylene oxide is reactive as an initiator in the presence of a catalyst to synthesize a polymer of organopolysiloxane and polyoxyalkylene, and then introducing a reactive silicon group into said polymer.Type: GrantFiled: June 27, 1996Date of Patent: February 17, 1998Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Masayuki Fujita, Hiroshi Iwakiri, Fumio Kawakubo
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Patent number: 5712325Abstract: A method is provided for making a radiation curable silicon containing polyacrylate hardcoat composition based on the use of a dispersion of colloidal silica in a C(3-5) branched aliphatic alcohol such as isopropyl alcohol. A reduction in the use of excess amounts of solvent along with avoiding gelation is achieved while allowing treatment of the colloidal silica dispersion with a alkoxysilylacrylate, followed by the employment of polyfunctional reactive acrylic monomer and stripping of the mixture.Type: GrantFiled: March 13, 1997Date of Patent: January 27, 1998Assignee: General Electric CompanyInventors: Larry Neil Lewis, Gautam Ambalal Patel, Gregory Ronald Gillette, George Fredric Medford
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Patent number: 5708046Abstract: The present invention relates to a curable silicone release coating composition comprising a mixture of an organopolysiloxane containing at least two alkenyl groups per compound, an organohydrogensilicon compound, inhibitors having a boiling point of up to 130.degree. C. at atmospheric pressure, inhibitors having a boiling point of at least 170.degree. C. at atmospheric pressure a platinum group metal-containing catalyst, and optionally a diluent. The silicone release coating compositions are stable when stored at room temperature, especially when the composition is used on a coating roll for the production of a thin films. The compositions of this invention also quickly form a cured film having good release properties for adhesive materials at a comparatively low temperatures.Type: GrantFiled: September 20, 1996Date of Patent: January 13, 1998Assignees: Dow Corning Corporation, Dow Corning Toray Silicone Co., Ltd.Inventors: John Darrell Jones, Michael Ward Skinner, Nobuo Kaiya, Atsushi Togashi, Takateru Yamada
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Patent number: 5703137Abstract: The present invention relates to initiators for the polymerization and/or crosslinking, cationically and under photochemical and/or thermal activation and/or activation by a beam of electrons, of monomers and/or polymers containing organofunctional groups.The said initiators are of the type comprising an onium salt of an element from groups 15 to 17 of the Periodic Table (Chem & Eng News, Vol 63, N5, 26, of 4 Feb. 1985) and they are characterized in that they contain at least one polymerization and/or crosslinking accelerator chosen from .alpha.-hydroxylated carboxylic acid esters such as, for example, lactic acid esters. Another subject of the invention is compositions based on at least one cationically crosslinkable polyorganosiloxane and on at least one initiator.Type: GrantFiled: March 14, 1996Date of Patent: December 30, 1997Assignee: Rhone-Poulenc ChimieInventors: Christian Priou, Stuart Kerr, III
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Patent number: 5696211Abstract: Release modifier composition useful in release coating compositions comprising a fluorosilicone compound having perfluoroalkyl groups and at least three silicon-bonded hydrogen atoms and a MQ resin having at least one alkenyl group.Release coating compositions comprising the release modifier compositions and a method for modifying the release force of release coating compositions is also claimed.Type: GrantFiled: December 16, 1996Date of Patent: December 9, 1997Assignee: Dow Corning CorporationInventors: Kyuha Chung, Simon Hurford, Bhukandas Parbhoo
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Patent number: 5691435Abstract: The present invention provides crosslinkable compositions comprising(A) an organosilicon compound having radicals containing aliphatic carbon-carbon multiple bonds,(B) an organosilicon compound having Si-bonded hydrogen atoms,(C) a catalyst which promotes the addition of Si-bonded hydrogen onto aliphatic multiple bond, and optionally(D) an agent which retards the addition of Si-bonded hydrogen onto aliphatic multiple bond at room temperatureand to the use of the crosslinkable compositions for producing coatings which repel tacky substances.The present invention also relates to organosilicon compounds having Si-bonded hydrogen atoms, and to a process for their preparation.Type: GrantFiled: January 14, 1997Date of Patent: November 25, 1997Assignee: Wacker-Chemie GmbHInventors: Christian Herzig, Bernward Deubzer, Martina Bloechl, Robert Banfic
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Patent number: 5629399Abstract: A room temperature curable organosiloxane composition, containing an alkenyl-containing polyorganosiloxane, an organohydrogensiloxane, a platinum catalyst, a methylvinylcyclosiloxane and an acetylenic alcohol, which exhibits a long working time and a fast cure time.Type: GrantFiled: March 5, 1996Date of Patent: May 13, 1997Assignee: Dow Corning CorporationInventors: Donnie R. Juen, Kent R. Larson, Myron T. Maxson, Lawrence J. Rapson