Silicon Reactamt Contains Only Carbon Atom, Only A Carbon Chain, Or Chain Of Carbon And Oxygen Atoms Only Between Two Silicon Atoms Patents (Class 528/35)
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Patent number: 6784259Abstract: A prepolymer, represented by the formula: wherein n is an average value grater than or equal to 0, Ar is an aromatic group, and each R10 is independently selected from the group consisting of alkyl, aryl, alkylaryl, haloalkyl, haloaryl and mixtures thereof and each R11 is independently selected from the group consisting of alkyl, aryl, alkylaryl, haloalkyl, haloaryl and mixtures thereof.Type: GrantFiled: February 12, 2003Date of Patent: August 31, 2004Assignee: The United States of America as represented by the Secretary of the NavyInventors: Teddy M. Keller, Craig Homrighausen
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Patent number: 6780498Abstract: A composition comprising a siloxane resin, a silicon compound substantially consisting of silicon, carbon and hydrogen, wherein the number ratio of carbon to silicon atoms forming an —X— bond (wherein X is (C)m (where m is an integer in the range of from 1 to 3), or a substituted or unsubstituted aromatic group with 9 or less carbon atoms) in the main chain of one molecule is in the range of from 2:1 to 12:1, and a solvent, is subjected to a heat treatment to form a low dielectric constant film. Accordingly, a low dielectric constant film having excellent resistance against chemicals and excellent moisture resistance is provided. A semiconductor integrated circuit having a fast response can be produced by using the film.Type: GrantFiled: October 26, 2001Date of Patent: August 24, 2004Assignee: Fujitsu LimitedInventors: Yoshihiro Nakata, Katsumi Suzuki, Iwao Sugiura, Ei Yano
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Patent number: 6780517Abstract: The adhesion of low k poly(arylene ether) dielectric coating compositions is effectively enhanced by a polycarbosilane promoter additive or primer. A coating composition is prepared by (a) providing a poly(arylene ether) composition; and (b) adding to said composition a small effective adhesion promoting amount of certain polycarbosilanes. The adhesion enhanced coating compositions are cured by heat treatment at temperatures in excess of 50° C. to form a polycarbosilane-modified poly(arylene ether) polymer composition having a low k dielectric constant for use in semiconductor devices.Type: GrantFiled: June 4, 2002Date of Patent: August 24, 2004Assignee: Honeywell International Inc.Inventors: Tian-An Chen, Anna M. George, Kreistler S. Y. Lau, Hui-Jung Wu
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Patent number: 6780471Abstract: A curable silicone resin composition comprises (A) an uncured silicone resin having units of the formula (R*)a(R)bSiO(4−a−b)/2, where each R* is a functional group capable of reacting with Si—OH and/or Si-alkoxy groups and each R is a nonfunctional monovalent hydrocarbon group, a+b is from 1.0 to 3.0 and each molecule of uncured silicone resin contains an average of at least two groups R*, and (B) a silanol or hydrolysable compound of the formula (I) where R′ represents a hydroxyl group or a hydrolysable group; each R″ represents hydrogen, a monovalent hydrocarbon which optionally is substituted, or a group within the above definition of R′; and Ar is a substantially nonflexible linkage including at least one para-arylene moiety, so that the groups (R′)2R″Si— are spatially separated.Type: GrantFiled: December 13, 2002Date of Patent: August 24, 2004Assignee: Dow Corning CorporationInventors: Pierre Chevalier, Iain A MacKinnon, Bizhong Zhu, Robert Jean-Pierre Corriu, Genevieve Marie-Louise Emile Cerveau, Bertrand Francois Dabiens
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Patent number: 6780516Abstract: An anti-fog coating composition comprises a silicone polymer or oligomer, a water dispersible polyurethane polymer or oligomer, and water. A process for forming an anti-fog film comprises applying the anti-fog coating composition to a substrate and coalescing the silicone and polyurethane compounds to form the film. In another embodiment, the process for forming the anti-fog film comprises applying the components of the anti-fog coating composition to a substrate and crosslinking the components to form the anti-fog film. The components generally include a polyol, an isocyanate, a catalyst, and a silicone polymer or oligomer.Type: GrantFiled: January 31, 2002Date of Patent: August 24, 2004Assignee: General Electric CompanyInventor: Mao Chen
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Publication number: 20040152860Abstract: A positive resist composition includes (A) an alkali-soluble polysiloxane resin, (B) an acid generator composed of a compound which generates an acid upon irradiation of active light or radiant ray, and (C) a compound in which at least one hydrogen atom of phenolic hydroxyl group or carboxyl group is substituted with an acid-decomposable group. This positive resist composition is useful for processes using F2 excimer laser (157 nm), extreme-ultraviolet rays (EUV, vacuum ultraviolet rays; 13 nm) and other light sources having wavelengths equal to or shorter than that of KrF excimer laser, and has high definition and can form resist patterns with good sectional shapes. A base material carrying a layer of the positive resist composition is also useful.Type: ApplicationFiled: December 31, 2003Publication date: August 5, 2004Applicant: TOKYO OHKA KOGYO CO., LTD.Inventors: Toshiyuki Ogata, Koutaro Endo, Hiroshi Komano
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Patent number: 6767984Abstract: This invention provides a top coating composition which comprises a coating film-forming resin (I); as well as a silicate compound (II) besides a hydrolyzable silyl-containing resin (III) and/or a silicate-grafted resin (IV) resulting from graft polymerization of a silicate compound (II) onto a hydrolyzable silyl-containing resin (III).Type: GrantFiled: May 10, 2001Date of Patent: July 27, 2004Assignee: Nippon Paint Co., Ltd.Inventors: Teruzo Toui, Hisaki Tanabe, Nobuhisa Sudo, Satoshi Urano, Manabu Yoshioka
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Publication number: 20040127662Abstract: Acyclic diene metathesis (ADMET) has been utilized in the synthesis of carbosilane and carbosiloxane polymers bearing a latent reactive methoxy-functional group on each repeat unit. The polymerization results in a linear thermoplastic polymer. The latent reactive methoxy groups remain inert during polymerization; however, exposure to moisture triggers hydrolysis and the formation of a chemically cross-linked thermoset. The thermoset's properties can be modified by varying the ratio of carbosilane and carbosiloxane repeat units in the final material. Also, increasing cross-link density by using cross-linkable chain-end groups and increasing the run length of the soft phase, maximizing phase separation and elasticity, allows for the synthesis of elastic thermosets exhibiting good tensile strength. Adding a trifunctional ADMET active chain-end cross-linker to the system improved the mechanical behavior of the resulting polymer.Type: ApplicationFiled: November 21, 2003Publication date: July 1, 2004Inventors: Kenneth B. Wagener, John C. Sworen, Hector F. Zuluaga, Piotr Matloka
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Patent number: 6753398Abstract: A composition comprising (A) a saturated hydrocarbon polymer having a number average molecular weight in the range of 500-50,000 and bearing at least two hydrolyzable silyl groups at an end of the backbone and/or an end of a side chain per molecule, (B) an organic compound having at least one C═O group in a molecule, and (C) an organic compound having at least one NH2 group in a molecule, the C═O group and the NH2 group being reactive with each other, is improved in room temperature curing, especially in fast curing and deep curing.Type: GrantFiled: February 8, 2002Date of Patent: June 22, 2004Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Takafumi Sakamoto, Tsuneo Kimura
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Patent number: 6743834Abstract: Anionic electrodeposition coating compositions for forming matte films containing acrylic resin; alkoxysilyl group containing emulsified polymer produced by a multiple stage emulsion polymerization of unsaturated monomer in the presence of water and a emulsifier, wherein the unsaturated monomer containing alkoxysilyl group-containing unsaturated monomer is present in an amount of 5 to 40% by weight based on a total amount of all the unsaturated monomers used in the multiple stage emulsion polymerization; and crosslinking agent.Type: GrantFiled: October 10, 2001Date of Patent: June 1, 2004Assignee: Kansai Taint Co., Ltd.Inventors: Tetsuya Yokoyama, Kamikado Koji
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Patent number: 6743515Abstract: The invention relates to self-adhesive addition-crosslinking silicone compositions which comprises (A) diorganopolysiloxanes, (B) organohydrogenpolysiloxanes containing less than 20 SiH bonded hydrogen atoms and less than 12% aryl groups, (C) organosilicon compounds having epoxy groups and hydrolyzable groups and (D) a hydrosilylation catalyst. The compositions are transparent to translucent, exhibit good compositional comparability, and cure to form strongly adhesive elastomers with good physical properties.Type: GrantFiled: October 13, 2000Date of Patent: June 1, 2004Assignee: Wacker-Chemie GmbHInventors: Philipp Müller, Frank Achenbach, Georg Eberl
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Patent number: 6730453Abstract: The invention provides a high molecular weight silicone compound comprising recurring units of formula (1) and having a weight average molecular weight of 1,000-50,000. Some or all of the hydrogen atoms of carboxyl groups or carboxyl and hydroxyl groups in the silicone compound may be replaced by acid labile groups. Z is a di- to hexavalent, non-aromatic, monocyclic or polycyclic hydrocarbon or bridged cyclic hydrocarbon group; Z is a di- to hexavalent, normal or branched hydrocarbon group or non-aromatic, monocyclic or polycyclic hydrocarbon or bridged cyclic hydrocarbon group; x, y and z are integers of 1-5 corresponding to the valence of Z and Z′; R1 is —OCHR—R′—OH or —NHCHR—R′—OH; R2 is alkyl or alkenyl or a monovalent, non-aromatic, polycyclic hydrocarbon or bridged cyclic hydrocarbon group; p1, p2, p3 and p4 are 0 or positive numbers.Type: GrantFiled: June 25, 2001Date of Patent: May 4, 2004Assignee: Shin Etsu Chemical Co., Ltd.Inventors: Mutsuo Nakashima, Ichiro Kaneko, Toshinobu Ishihara, Junji Tsuchiya, Jun Hatakeyama, Shigehiro Nagura
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Patent number: 6730749Abstract: The invention relates to novel siloxane block copolymers of the general average formula having linked, different siloxane blocks and their use as surface-active agents, in particular as additives in the preparation of polyurethane foams.Type: GrantFiled: April 12, 2000Date of Patent: May 4, 2004Assignee: Goldschmidt AGInventors: Georg Burkhart, Rolf-Dieter Langenhagen, Andreas Weier
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Patent number: 6703120Abstract: The present invention provides silicone-based adhesives, preferably pressure sensitive adhesives, adhesive articles, and methods. Preferably, the articles are cover tapes for analytical receptacles, such as microtiter plates, microfluidic devices, and continuous multi-reservoir carriers, or other analytical receptacles or biosensors, for example. Typically, such analytical receptacles are used in bioanalytical applications and are designed for containing solids and fluids, including liquids, gases, powders, and gels, which may include biological samples or organic solvents, for example.Type: GrantFiled: April 11, 2002Date of Patent: March 9, 2004Assignee: 3M Innovative Properties CompanyInventors: John H. Ko, Kurt C. Melancon, Anita L. Schulz
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Patent number: 6664323Abstract: A curable resin composition comprising an oxyalkylene base copolymer having at least one silicone atom containing group to the silicone atom of which a hydroxyl group and/or hydrolyzable group is attached and which is cross-linked through formation of a siloxane bond.Type: GrantFiled: January 31, 2002Date of Patent: December 16, 2003Assignee: General Electric CompanyInventor: Gary M. Lucas
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Patent number: 6660822Abstract: The present invention provides a method for forming insulating film between interconnect layers in microelectronic devices, said method comprising the steps of: preparing siloxane-based resins by hydrolyzing and polycondensing the compound represented by the following formula (1), with or without the compound represented by the following formula (2), in an organic solvent in the presence of a catalyst and water; coating a silicon substrate with the siloxane-based resins dissolved in an organic solvent; and heat-curing the resulting coating film: RSiX1X2X3 [2] in which, R is hydrogen atom, C1˜C3 alkyl group, C3˜C10 cycloalkyl group, or C6˜C15 aryl group; X1, X2 and X3 are independently C1˜C3 alkyl group, C1˜C10 alkoxy group, or halogen atom; n is an integer ranging from 3 to 8; and m is an integer ranging from 1 to 10.Type: GrantFiled: July 2, 2001Date of Patent: December 9, 2003Assignee: Samsung Electronics Co., Ltd.Inventors: Yi Yeol Lyu, Jin Heong Yim, Sang Kook Mah, Eun Ju Nah, Il Sun Hwang, Hyun Dam Jeong, Jin Gyu Lee
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Patent number: 6649016Abstract: This invention relates to silane functional adhesive composition and to a method of bonding a window to a painted substrate using the adhesive without the need for a primer for the painted substrate. In one embodiment, the invention is a method of bonding glass to a painted substrate, such as a window in a vehicle. The process comprises applying to the glass or the unprimed painted substrate an adhesive as described herein; contacting the glass with the unprimed painted substrate wherein the adhesive is located between the window and the substrate; and allowing the adhesive to cure.Type: GrantFiled: March 4, 2002Date of Patent: November 18, 2003Assignee: Dow Global Technologies Inc.Inventors: Ziyan Wu, Daniel P. Heberer
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Patent number: 6646048Abstract: A primer composition comprising: (A) 100 parts by weight of a reactive acrylic resin comprising a main chain composed of a copolymer of two types of alkylmethacrylates having different number of carbon atoms and a side chain having a group with a hydroxyl group and at least one aromatic ring; (B) 100 to 500 parts by weight of a silane compound obtained by reaction of an aminosilane having two amino groups with dialkoxyepoxysilane and trialkoxyepoxysilane at a predetermined ratio; (C) 10 to 300 parts by weight of an epoxy resin of bisphenol A type having an epoxy equivalent of 1,000 to 2,000 g/eq.; and (D) 100 to 500 parts by weigh of carbon black is provided. The composition is excellent in storage stability and can retain excellent adhesion during the time from the coating of the primer until the coating of a sealant and further is excellent in weatherability.Type: GrantFiled: September 28, 2001Date of Patent: November 11, 2003Assignee: The Yokohama Rubber Co., Ltd.Inventors: Hideyuki Matsuda, Akihiro Miyata, Kazunori Ishikawa
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Patent number: 6646090Abstract: Condensation curable poly(fluoroorgano)siloxane-poly(silarylene)siloxane block copolymer compositions having a glass transition temperature not exceeding about −54° C. and excellent solvent resistance have been found useful as sealants. Polyalkoxysilylorgano compounds, such as 1,4-bis[trimethoxysilyl(ethyl)]benzene have been found to be effective as cross-linkers.Type: GrantFiled: July 22, 2002Date of Patent: November 11, 2003Assignee: General Electric CompanyInventors: Navjot Singh, John Thomas Leman, John M. Whitney, Herman Otto Krabbenhoft
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Patent number: 6617040Abstract: The present invention provides a device for selective molecular recognition, the device comprising a sensing portion, wherein said sensing portion includes a substrate having coated thereon a layer comprising a dendrimeric compound having: (1) a core portion; (2) at least one unsaturated arms extending radially from the core portion; and (3) at least one halogen substituted alcohol substituted at the terminus, the interior, or both of each; The device is used to detect the molecules of a hydrogen bond accepting vapor such as organophosphorus or nitroaromatic species.Type: GrantFiled: January 16, 2002Date of Patent: September 9, 2003Assignee: The United States of America as represented by the Secretary of the NavyInventors: Eric Houser, Robert McGill
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Patent number: 6613441Abstract: The present invention relates to mixtures prepared from (A) at least one linear, branched, or cyclic monomeric organosilane having at least two silicon atoms with hydrolyzable and/or condensation-crosslinking groups in which the silicon atoms are bonded to one another through at least one carbon atom in a linking unit, and (B) at least one boron- and/or aluminum-containing compound having the formula (I) RxM(OR′)3-x (I) wherein M is Al or B, x is 0, 1, or 2, R is C1-C6-alkyl, C6-C12-aryl, or (O)1/2, with the proviso that if R is (O)1/2, then the compound of the formula (I) is a chain when x is 1 and a cyclic or cage-form compound when x is 2, and each R′ is independently H, C1-C10-alkyl, or C6-C12-aryl. The invention further relates to hybrid materials prepared from such mixtures and to coatings produced therefrom.Type: GrantFiled: October 23, 2001Date of Patent: September 2, 2003Assignee: Bayer AktiengesellschaftInventors: Michael Mager, Steffen Hofacker
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Patent number: 6613834Abstract: A low dielectric film forming material contains siloxane resin and polycarbosilane dissolved in solvent. By using this solution, a low dielectric film is formed which contains siloxane resin and polycarbosilane bonded to the siloxane resin. Material of a low dielectric film is provided which is suitable for inter-level insulating film material. A semiconductor device is also provided which has a low dielectric constant film and high reliability.Type: GrantFiled: March 5, 2001Date of Patent: September 2, 2003Assignee: Fujitsu LimitedInventors: Yoshihiro Nakata, Shun-ichi Fukuyama, Katsumi Suzuki, Ei Yano, Tamotsu Owada, Iwao Sugiura
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Patent number: 6613860Abstract: The present invention provides composition for treating a substrate comprising a homogeneous mixture of: (a) a fluorinated polyether silane of the formula: Rf1—[—Q—SiY3−xR1x]y (I) wherein Rf1 represents a monovalent or divalent polyfluoropolyether group, Q represents an organic divalent linking group, R1 represents a C1-C4 alkyl group, Y represents a hydrolysable group; x is 0 or 1 and y is 1 or 2; (b) an organic or an inorganic acid; (c) water; and (d) an organic solvent. The invention further provides a method of making such a composition and the use thereof to treat substrates to render them oil and water repellent.Type: GrantFiled: October 12, 2000Date of Patent: September 2, 2003Assignee: 3M Innovative Properties CompanyInventors: Rudolf J. Dams, Franceska M. Fieuws, Steven J. Martin, Michael S. Terrazas, Mark J. Pellerite
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Patent number: 6607833Abstract: The present invention provides for an etch and mar resistant low VOC clear coating composition most suitable for use as a top clear coat in multi-layered OEM or refinish automative coatings. The coating composition includes isocyanate, silane and melamine components. The isocyanate component includes an aliphatic polyisocyanate. The composition may be formulated as a two-pack or one-pack coating composition, wherein the isocyanante functionalities are blocked with a blocker such as a mono-alcohol.Type: GrantFiled: August 8, 2001Date of Patent: August 19, 2003Assignee: E. I. du Pont de Nemours and CompanyInventors: Peter William Uhlianuk, Ding-Yu Chung, Isidor Hazan
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Patent number: 6602964Abstract: Disclosed herein is a composition comprising: A) a moisture curable polymer selected from the group consisting of silylated polyurethanes, silylated polyethers, and mixtures thereof, and B) a silicone oligomer of the formula: [R3SiO1/2]m[O1/2Si(R)2O1/2]n[SiO3/2R]o[SiO4/2]p (I) wherein: each R is independently selected from the group consisting of B, R1, —OR2, R3, and R4; B is an organosilyl functional group bridged to the Si atom of the siloxane oligomer backbone by a Si—C bond; each R1 is independently a saturated or aromatic hydrocarbon group of 1 to 16 carbon atoms; each R2 is independently a group as defined for R1 or an acyl group; each R3 is independently a monovalent organic group containing an aliphatic unsaturated hydrocarbon group; each R4 is a monovalent organic group linked to the Si atom of the siloxane oligomer backbone by a Si—C bond that does not include an aliphatic unsaturated hydrocarbon group and that has thereType: GrantFiled: February 4, 2002Date of Patent: August 5, 2003Assignee: Crompton CorporationInventors: Misty Huang, Richard E. Handel, Herbert Petty
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Patent number: 6599635Abstract: The present invention relates to inorganic coating compositions based on cyclic carbosiloxanes, inorganic polycondensates and &agr;,&ohgr;-functional linear oligosiloxanes, and also to a process for production thereof and to the use thereof and to a non-stick layer so obtained.Type: GrantFiled: February 19, 2002Date of Patent: July 29, 2003Assignee: Bayer AktiengesellschaftInventors: Markus Mechtel, Wolfgang Pütz, Lutz Schmalstieg, Holger Mundstock, Michael Sonntag
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Patent number: 6596833Abstract: The present invention provides carbosilanes represented by the following general formula (1), polycarbosilanes synthesized therefrom by the polymerization reaction using an organic typical metal compound as an initiator, and the processes for producing the same. wherein M represents an Sn, Ge or Pb atom; A represents an aliphatic group having 2-10 carbon atoms, a carbocyclic group or a heterocyclic group containing one or more atoms selected from silicon, oxygen, nitrogen and sulfur atoms, both groups having 6-30 carbon atoms; R1, R2, R3, R6, R7 and R8 each independently represent an alkyl group having 1-20 carbon atoms, an alkenyl or alkynyl group having 2-20 carbon atoms, or an aryl group having 6-20 carbon atoms; R4, R5, R9 and R10 each independently represent an alkyl group having 1-20 carbon atoms, an alkenyl or alkynyl group having 2-20 carbon atoms, an alkenylalkyl or alkynylalkyl group having 3-20 carbon atoms, or an aryl group having 6-20 carbon atoms.Type: GrantFiled: March 9, 2001Date of Patent: July 22, 2003Assignee: Chisso CorporationInventor: Kazutoshi Ikenaga
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Publication number: 20030130466Abstract: Condensation curable poly(fluoroorgano)siloxane-poly(silarylene)siloxane block copolymer compositions having a glass transition temperature not exceeding about −54° C. and excellent solvent resistance have been found useful as sealants. Polyalkoxysilylorgano compounds, such as 1,4-bis[trimethoxysilyl(ethyl)]benzene have been found to be effective as cross-linkers.Type: ApplicationFiled: July 23, 2002Publication date: July 10, 2003Inventors: Navjot Singh, John Thomas Leman, John M. Whitney, Herman Otto Krabbenhoft
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Patent number: 6579955Abstract: A linear polymer has repeating units represented by the formula wherein (a) n is an integer greater than or equal to 0, (b) x is an integer greater than or equal to 1, and represents an unconjugated acetylenic group when x is equal to 1 or conjugated acetylenic groups when x is greater than 1; (c) Ar is an aromatic group, and (c) R1, R2, R3, R4, R5, R6, R7 and R8 are independently selected from the group consisting of alkyl, aryl, alkylaryl, haloalkyl, haloaryl and mixtures thereof. The linear polymer may be thermally cured to form a crosslinked polymer.Type: GrantFiled: January 16, 2002Date of Patent: June 17, 2003Assignee: The United States of America as represented by the Secretary of the NavyInventors: Teddy M. Keller, Craig Homrighausen
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Patent number: 6566443Abstract: A nonsagging and extrudable room temperature curable silicone rubber composition with excellent adherence to a variety of substrates comprising (A) diorganopolysiloxane having silicon-bonded alkoxy in molecular chain terminal position, (B) surface-hydrophobicized dry method silica, (C) non-surface-hydrophobicized dry method silica, (D) alkoxysilane, (E) an organotitanium compound, and (F) light stabilizer and/or UV absorber.Type: GrantFiled: December 18, 2001Date of Patent: May 20, 2003Assignee: Dow Corning Toray Silicone Co., Ltd.Inventors: Hirotoki Morimoto, Kazutoshi Okabe, Hiroshi Adachi
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Patent number: 6548629Abstract: The cross-linked hydrosilylation reaction product of an alkenyl functional silicone compound, a silylhydride functional silicone compound, and one or more allyl started, hydrogen, alkyl, aryl or acyl terminated polyether compounds exhibits stability, compatibility with polar organic solvents and is useful as a component in personal care compositions.Type: GrantFiled: October 5, 2001Date of Patent: April 15, 2003Assignee: General Electric CompanyInventors: John A. Kilgour, Atchara Chaiyawat, An-Li Kuo, Donald E. Firstenberg
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Patent number: 6545085Abstract: The cross-linked hydrosilylation reaction product of an alkenyl functional silicone compound, a silylhydride functional silicone compound, and one or more allyl started, hydrogen, alkyl, aryl or acyl terminated polyether compounds exhibits stability, compatibility with polar organic solvents and is useful as a component in personal care compositions.Type: GrantFiled: October 5, 2001Date of Patent: April 8, 2003Assignee: General Electric CompanyInventors: John A. Kilgour, Atchara Chaiyawat, An-Li Kuo, Donald E. Firstenberg
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Patent number: 6545116Abstract: A flame retardant for thermoplastic resins comprising polyorganosiloxane crosslinked particles having a toluene-insoluble matter content of at least 50% by weight and an average particle size of 0.01 to 2,000 &mgr;m, which provides flame retardant resin compositions of low environmental load generating no harmful gas at the time of burning and having an excellent impact resistance by the incorporation thereof into thermoplastic resins.Type: GrantFiled: September 15, 2000Date of Patent: April 8, 2003Assignee: Kaneka CorporationInventors: Nobuo Miyatake, Kazunori Takikawa, Daisuke Nakamori, Shigeki Hamaguchi
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Patent number: 6534587Abstract: Symmetric and asymmetric cyclic silalkylenesiloxane monomers and copolymers thereof, as well as crosslinked and/or reinforced silalkylenesiloxane copolymers, medical devices containing such materials, and methods of preparation.Type: GrantFiled: May 9, 2000Date of Patent: March 18, 2003Assignee: Medtronic, IncInventors: Mark A. Tapsak, Edward Di Domenico
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Patent number: 6521774Abstract: A novel organosilicon compound obtained by introducing an alkylene group or analogue instead of the oxygen atom in an Si—O—Si linkage is capable of hydrosilylation reaction with another compound having a vinyl group to form a hydrosilylated derivative which is less prone to decomposition under acidic or basic conditions.Type: GrantFiled: April 25, 2001Date of Patent: February 18, 2003Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Noriyuki Koike, Koichi Yamaguchi, Yasunori Sakano
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Patent number: 6515043Abstract: An oligomer of the formula: [R3SiO½]m[O½Si(R2)O½]n[SiO{fraction (3/2)}R]o[SiO{fraction (4/2)}]p (I) wherein each R is selected individually from the group consisting of R1, —OR2 and —OR3; each R1 is independently a substituted or unsubstituted hydrocarbon group; each R2 is a C1-C6 alkyl group or an acyl group; and each R3 is a independently an alkyl or alkenyl group having at least 8 carbon atoms; with the provisos that if R3 is alkenyl, there is no unsaturation within two carbon atoms adjacent to the oxygen atom of the —OR3 group; at least one R group is —OR3; at least one quarter of all R groups are —OR2 or —OR3; m=2 to 20; n=0 to 50; o=0 to 20; and p=0 to 10. The oligomer is a useful component of in insulation formulations for wire and cable used in underground locations.Type: GrantFiled: March 20, 2001Date of Patent: February 4, 2003Assignee: Crompton CorporationInventors: Herbert B. Petty, Robert Pickwell
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Patent number: 6512072Abstract: A formulation for depositing a film on a substrate comprising 5 to79.9 wt. % of an alkylene trialkoxy terminated polysiloxane; 0.01 to 5 wt. % of a catalyst; 20 to 94.99 to wt % of a volatile diluent, and, optionally, 0.01 to 5 wt. % of an alkoxysilane and 0.1 to 25 wt % of a filler. The formulations are especially valuable for forming films to be used in personal care or healthcare applications.Type: GrantFiled: June 12, 2000Date of Patent: January 28, 2003Assignee: Dow Corning CorporationInventors: David Clayton Gantner, Keith Alan LaChance, Bartley Dean Maxon, Katherine Lynn Ulman, Debra Jo Nagy Zellner
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Publication number: 20030009000Abstract: Condensation curable poly(fluoroorgano)siloxane-poly(silarylene)siloxane block copolymer compositions having a glass transition temperature not exceeding about −54° C. and excellent solvent resistance have been found useful as sealants. Polyalkoxysilylorgano compounds, such as 1,4-bis[trimethoxysilyl(ethyl)]benzene have been found to be effective as cross-linkers.Type: ApplicationFiled: July 22, 2002Publication date: January 9, 2003Inventors: Navjot Singh, John Thomas Leman, John M. Whitney, Herman Otto Krabbenhoft
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Patent number: 6492480Abstract: Disclosed is a method for the preparation of a linear polysilalkylenesiloxane from four- to seven-membered cyclic silalkylenesiloxane by subjecting the cyclic silalkylenesiloxane to ring opening polymerization by using as a catalyst a polynuclear ruthenium-carbonyl complex in which carbonyl groups are coordinated with three or four ruthenium atoms, in the presence of a silane compound having at least one Si—H bond.Type: GrantFiled: June 20, 2001Date of Patent: December 10, 2002Assignee: Japan Science and Technology CorporationInventors: Hideo Nagashima, Kouki Matsubara, Junichi Terasawa
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Patent number: 6451439Abstract: A primer composition showing good adhesion to the surface of a substrate, such as a glass substrate, and excellent in weather resistance and water resistance as well as a method of effecting adhesion is provided. The primer composition is characterized by comprising a saturated hydrocarbon polymer having at least one silicon-containing group which has hydroxyl or hydrolyzable group bound to the silicon atom and capable of crosslinking under formation of a siloxane bond.Type: GrantFiled: March 30, 2001Date of Patent: September 17, 2002Assignee: Kaneka CorporationInventors: Toshihiko Okamoto, Makoto Chiba, Junji Takase
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Patent number: 6451954Abstract: Condensation curable poly(fluoroorgano)siloxane-poly(silarylene)siloxane block copolymer compositions having a glass transition temperature not exceeding about −54° C. and excellent solvent resistance have been found useful as sealants. Polyalkoxysilylorgano compounds, such as 1,4-bis[trimethoxysilyl(ethyl)]benzene have been found to be effective as cross-linkers.Type: GrantFiled: July 27, 2000Date of Patent: September 17, 2002Assignee: General Electric CompanyInventors: Navjot Singh, John Thomas Leman, John M. Whitney, Herman Otto Krabbenhoft
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Patent number: 6444775Abstract: The present invention has its object to provide a curable composition showing a controlled initial curing rate and, hence, offering good workability by introducing a methyl group into the neighborhood of the reactive silicon group within an oligomer to indirectly lower the reactivity of the reactive silicon group within the oligomer.Type: GrantFiled: March 27, 2000Date of Patent: September 3, 2002Assignee: Kaneka CorporationInventors: Hideharu Jyono, Hidetoshi Odaka, Hiroshi Ito, Hiroshi Iwakiri
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Patent number: 6423772Abstract: The present invention provides to an organo-bridged ladderlike polysiloxane having the following formula: and a tube-like organosilicon polymer, complexes thereof and the method for producing the same.Type: GrantFiled: July 14, 2000Date of Patent: July 23, 2002Assignee: Institute of Chemistry, Chinese Academy of SciencesInventors: Rongben Zhang, Chunqing Liu, Ping Xie, Huadong Tang
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Patent number: 6420504Abstract: Radical-polymerizable organic group-containing branched siloxane-silalkylene copolymer represented by the general formula: {in the formula, Y is a radical-polymerizable organic group, R1 is 1-10 carbon alkyl or aryl, and X1 is a silyl-alkyl group represented by the following formula in the case when i=1: (in the formula, R1 is the same as aforesaid, R2 is 2-10 carbon alkylene, R3 is 1-10 carbon alkyl, and Xi+1 is a group selected from the group comprising a hydrogen atom, 1-10 carbon alkyl, aryl and the aforesaid silylalkyl group, i is an integer from 1 to 10, which indicates the generation number of the said silylalkyl group and ai is an integer from 0 to 3)}, silicone-containing organic polymer made by polymerizing the said copolymer and method for production thereof.Type: GrantFiled: August 9, 2000Date of Patent: July 16, 2002Assignee: Dow Corning Toray Silicone Co., Ltd.Inventors: Makoto Yoshitake, Haruhiko Furukawa, Yoshitsugu Morita
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Patent number: 6395826Abstract: The present invention relates to mixtures prepared from (A) at least one linear, branched, or cyclic monomeric organosilane having at least two silicon atoms with hydrolyzable and/or condensation-crosslinking groups in which the silicon atoms are bonded to one another through at least one carbon atom in a linking unit, and (B) at least one boron- and/or aluminum-containing compound having the formula (I) RxM(OR′)3−x (I) wherein M is Al or B, x is 0, 1, or 2, R is C1-C6-alkyl, C6-C12-aryl, or (O)½, with the proviso that if R is (O)½, then the compound of the formula (I) is a chain when x is 1 and a cyclic or cage-form compound when x is 2, and each R′ is independently H, C1-C10-alkyl, or C6-C12-aryl. The invention further relates to hybrid materials prepared from such mixtures and to coatings produced therefrom.Type: GrantFiled: March 24, 1999Date of Patent: May 28, 2002Assignee: Bayer AktiengesellschaftInventors: Michael Mager, Steffen Hofacker
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Patent number: 6395856Abstract: Oligomers of the formula: [R3SiO1/2]m[O1/2Si(R2)O1/2]n[SiO3/2R]o[SiO4/2]p (I) wherein each R is selected individually from the group consisting of B, R1, —OR2, R3 and R4; B is an organosilyl functional group bridged to the Si atom of the siloxane oligomer backbone by an Si—C bond; each R1 is independently a saturated aliphatic hydrocarbon group of 1 to 16 carbon atoms; each R2 is independently a group as defined for R1, an aromatic hydrocarbon group or an acyl group; each R3 is independently a monovalent organic radical containing an aliphatically unsaturated hydrocarbon group and each R4 is a monovalent organic radical linked to the Si atom of the siloxane oligomer backbone by an Si—C bond, which does not include an aliphatically unsaturated hydrocarbon group and which has thereon one or more members of the group selected from aromatic hydrocarbon, ether, ester, carbamate, thioether, polysulfide, blocked mercaptan, amide, epoxy, cyano anType: GrantFiled: December 2, 1999Date of Patent: May 28, 2002Assignee: Crompton CorporationInventors: Herbert E. Petty, Robert Pickwell, Frederick D. Osterholtz, Shiu-Chin Huang Su
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Patent number: 6376636Abstract: Modular, energy-dissipating material prevents failure of adhesives, fibers and composite and other structures. The modules comprise folded subunits or domains that unfold in a stepped fashion at forces below that necessary to break the backbone of the material and, with adhesive material, below that necessary to break the bonds that fasten the material to surfaces being glued.Type: GrantFiled: October 28, 1999Date of Patent: April 23, 2002Assignee: The Regents of the University of CaliforniaInventors: Paul K. Hansma, Johannes Kindt, Timothy J. Deming, Daniel E. Morse, Galen D. Stucky
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Patent number: 6368535Abstract: A condensation reaction curable silsesquioxane resin composition and methods for its preparation and cure are disclosed. By modifying the silsesquioxane resin with a silyl-terminated hydrocarbon, such as a silphenylene, the resulting silsesquioxane resin has improved strength and toughness without significant loss of modulus.Type: GrantFiled: August 6, 1999Date of Patent: April 9, 2002Assignee: Dow Corning CorporationInventors: Dimitris Elias Katsoulis, Bizhong Zhu
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Patent number: 6362289Abstract: A linear polymer has repeating units represented by the formula wherein (a) n is an integer greater than or equal to 0, (b) x is an integer greater than or equal to 1, and represents an unconjugated acetylenic group when x is equal to 1 or conjugated acetylenic groups when x is greater than 1; (c) Ar is an aromatic group, and (c) R1, R2, R3, R4, R5, R6, R7 and R8 are independently selected from the group consisting of alkyl, aryl, alkylaryl, haloalkyl, haloaryl and mixtures thereof. The linear polymer may be thermally cured to form a crosslinked polymer.Type: GrantFiled: July 25, 2000Date of Patent: March 26, 2002Assignee: The United States of America as represented by the Secretary of the NavyInventors: Teddy M. Keller, Craig Homrighausen
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Publication number: 20020028901Abstract: An improved biostable polyurethane-urea elastomeric composition derived from a silicon-containing diamine of formula (I).Type: ApplicationFiled: August 21, 2001Publication date: March 7, 2002Applicant: ELASTOMEDIC PTY LIMITEDInventors: Pathiraja A. Gunatillake, Simon John McCarthy, Raju Adhikari, Gordon Francis Meijs