Two Silicons Bonded Directly To The Same Oxygen Patents (Class 556/434)
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Patent number: 6849755Abstract: An organosilicon compound represented by the following general formula (1): wherein R1 is a hydrogen atom, a phenyl group or a halogenated phenyl group; R2 is a hydrogen atom or a methyl group; R3's are each a substituted or unsubstituted monovalent hydrocarbon group having 1 to 10 carbon atoms; X is a hydrolyzable group; Z1 is —R4—, —R4O— or —R4(CH3)2SiO—, where R4 is a substituted or unsubstituted divalent hydrocarbon group having 1 to 10 carbon atoms; Z2 is an oxygen atom or a substituted or unsubstituted divalent hydrocarbon group having 1 to 10 carbon atoms; and m is 0, 1 or 2 and n is 0, 1 or 2. When incorporated in silicone compositions, the organosilicon compound acts as a cross-linking agent having well-balanced photopolymerizability and condensation curability.Type: GrantFiled: October 26, 2001Date of Patent: February 1, 2005Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Toshiyuki Ozai, Hiroyasu Hara, Yoshifumi Inoue, Tomoyuki Goto
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Patent number: 6790451Abstract: A cosmetic material comprising as essential cosmetic constituents (A) a silicone-branched silicone compound and (B) a silicone-branched polyether-modified silicone compound.Type: GrantFiled: December 11, 2001Date of Patent: September 14, 2004Assignee: Shin-Etsu Chemical Co., Ltd.Inventor: Tetsuo Nakanishi
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Patent number: 6784306Abstract: Fluorinated organosilicon compounds having at least one fluorinated organic group and at least three SiH groups in a molecule are capable of hydrosilylation reaction with such compounds as vinyl group-bearing fluoro-polymers in a stable manner and fully compatible therewith.Type: GrantFiled: February 20, 2002Date of Patent: August 31, 2004Assignee: Shin-etsu Chemical Co., Ltd.Inventors: Kenichi Fukuda, Koichi Yamaguchi
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Patent number: 6784300Abstract: Disclosed is a holographic recording medium. The novel holographic recording mediums disclosed herein comprises: a) at least one polyfunctional epoxide monomer or oligomer which undergoes acid initiated cationic polymerization. Each epoxide in the monomer or oligomer is linked by group comprising a siloxane to a silicon atom and each monomer or oligomer has an epoxy equivalent weight of greater than about 300 grams/mole epoxide; b) a binder which is capable of supporting cationic polymerization; c) an acid generator capable of producing an acid upon exposure to actinic radiation; and optionally d) a sensitizer.Type: GrantFiled: August 28, 2001Date of Patent: August 31, 2004Assignee: Aprilis, Inc.Inventors: Erdem A. Cetin, Richard A. Minns, David A. Waldman
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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: 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: 6500976Abstract: Organosilicon compounds each having in a molecule (A) a perfluoroalkyl group of at least 3 carbon atoms which may be separated by an etheric oxygen atom, (B) a monovalent hydrocarbon group containing a carboxylic acid anhydride structure, and (C) a hydrosilyl (SiH) group are novel and added to thermosetting elastomer compositions as adhesion aids whereby the compositions are improved in adhesion to various materials including metals, alloys, plastics, and ceramics.Type: GrantFiled: October 5, 2001Date of Patent: December 31, 2002Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Takashi Matsuda, Mikio Shiono, Kenichi Fukuda
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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: 6307081Abstract: This invention relates to a macromonomer and a method for its preparation. The macromonomer has one or more silicon-bonded hydrogen atoms at one molecular chain terminal, and one or more aliphatically unsaturated silicon-bonded organic groups at the other molecular chain terminal. This invention further relates to a method of forming a hyperbranched polymer by polymerizing the macromonomer with a group VIII metal catalyst. The hyperbranched polymers can be used as surfactants, gelling agents, drug delivery systems, and polymeric absorbents.Type: GrantFiled: November 10, 1999Date of Patent: October 23, 2001Assignee: Dow Corning Silicone Company, Ltd.Inventors: Kyosuke Takiuchi, Tadashi Okawa, Stephen Edward Cray, Aziz Muzafarow
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Patent number: 6274692Abstract: The invention relates to new, cross-linkable compounds containing (A1) linear organopolysiloxanes with aliphatically unsaturated hydrocarbon radicals, said organopolysiloxanes being of general formula (I) R1aR3-aSiO(R2SiO)c[R2Si—Y—SiR2O(R2SiO)c]dSiR3-bR1b, wherein R can be the same or different, and represents a monovalent, optionally halogenated hydrocarbon radical which is free of terminal aliphatic carbon—carbon multiple bonds, R1 represents a monovalent aliphatically unsaturated hydrocarbon radical, Y represents a bivalent organic radical which is free of terminal aliphatic carbon—carbon multiple bonds, a is 0 or 1, b is 0 or 1, and the sum of a+b per molecule is 1 or 2, c is a whole number to the value of 1 to 1000, d is 0 or a whole number to the value of 1 to 10, and optionally, (A2) MQ silicone resins which are soluble in (A1), on the condition that if MQ silicone resins (A2) are not used, the sum of a+b in the formula (I) is 1.3 to 1.Type: GrantFiled: September 30, 1999Date of Patent: August 14, 2001Assignee: Wacker-Chemie GmbHInventors: Christian Herzig, Oliver Zoellner, Friedrich Hockemeyer, Robert Banfic
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Patent number: 6268456Abstract: A sprayable coating composition that contains at least one soluble film-forming silicon-containing compound having, on average, more than one fuctionalized silicon group, a volatile organic carrier, a polymer microparticle component, and a catalyst; a substrate coated with the composition; a process for coating the substrate to provide a protective finish; the finish-protected substrate; certain oligomeric compounds and a process therefor.Type: GrantFiled: December 3, 1997Date of Patent: July 31, 2001Assignee: E. I. du Pont de Nemours and CompanyInventors: Basil V. Gregorovich, Isidor Hazan, Robert Rudolph Matheson, Lech Wilczek
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Patent number: 6265518Abstract: An organosilicon compound comprising one silicon-bonded hydrogen atom described by formula or by formula where each R1 and R1′ is an independently selected hydrocarbon radical free from aliphatic unsaturation comprising 1 to about 18 carbon atoms; each R2 is an independently selected hydrocarbon radical free from aliphatic unsaturation comprising 1 to about 18 carbon atoms; each X and X′ is independently selected from the group consisting of halogen, alkoxy, acyloxy, and ketoximo; t is 2 or 3; n is 0, 1, or 2; and each Z is independently selected from the group consisting of divalent hydrocarbon radicals free of aliphatic unsaturation comprising about 2 to 18 carbon atoms and a combination of divalent hydrocarbon radicals and siloxane segments. The organosilicon compounds comprising one silicon-bonded hydrogen atom of the present invention are useful as endcappers for polymers.Type: GrantFiled: December 8, 1999Date of Patent: July 24, 2001Assignee: Dow Corning CorporationInventors: Robert Harold Krahnke, Timothy B. Lueder, Richard Alan Palmer, Nick Evan Shephard
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Patent number: 6258914Abstract: Alkoxy silane oligomers which have a non-hydrolyzable carbon bridged bond to another silane functionality are taught herein, as well as their manufacture and utility.Type: GrantFiled: October 15, 1999Date of Patent: July 10, 2001Assignee: C. K. Witco CorporationInventors: Shiu-Chin Huang Su, Herbert E. Petty, Fredrick D. Osterholtz
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Patent number: 6248686Abstract: Organic/inorganic complex porous materials are disclosed having a main skeletal chain containing metal atoms, oxygen atoms, and organic groups. Preferably, the metal atoms, oxygen atoms and organic groups are bound by ionic bonds and/or covalent bonds, and the organic group is bound to at least two metal atoms in the main chain of the skeleton of the porous material. More preferably, 60% or more of the total pore volume in the porous material has a pore diameter in a range of ±40% of the pore diameter, as determined from the maximum peak in a pore size distribution curve. Alternatively, at least one peak is present at a diffraction angle that preferably corresponds to a d value of at least 1 nm in an x-ray diffraction pattern. Method of making such organic/inorganic complex materials are also disclosed.Type: GrantFiled: July 2, 1999Date of Patent: June 19, 2001Assignee: Kabushiki Kaisha Toyota Chuo KenkyushoInventors: Shinji Inagaki, Shiyou Guan, Yoshiaki Fukushima
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Patent number: 6235864Abstract: Cross-linked polymers formed by ring-opening polymerization of a precursor monomer of the general formula R[CH2CH(Si(CH3)2)2O]2, where R is a phenyl group or an alkyl group having at least two carbon atoms. A cross-linked polymer is synthesized by mixing the monomer with a co-monomer of the general formula CH2CHR2(SiMe2)2O in the presence of an anionic base to form a cross-linked polymer of recurring units of the general formula R(Me2SiOCH2CHSiMe2)2[CH2CHR2(SiMe2)2O]n, where R2 is hydrogen, phenyl, ethyl, propyl or butyl. If the precursor monomer is a liquid, the polymer can be directly synthesized in the presence of an anionic base to a cross-linked polymer containing recurring units of the general formula R(Me2SiOCH2CHSiMe2)2. The polymers have approximately less than 1% porosity and are thermally stable at temperatures up to approximately 500° C.Type: GrantFiled: May 12, 1999Date of Patent: May 22, 2001Assignee: Sandia CorporationInventors: Douglas A. Loy, Kamyar Rahimian
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Patent number: 6184407Abstract: To provide a novel branched siloxane-silalkylene copolymer whose molecule contains a plural number of silicon-bonded hydrogen atoms or silicon-bonded alkoxy groups.Type: GrantFiled: May 24, 1999Date of Patent: February 6, 2001Assignee: Dow Corning Toray Silicone Co., Ltd.Inventors: Makoto Yoshitake, Satoshi Onodera
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Patent number: 6169156Abstract: A novel branched siloxane-silalkylene copolymer containing a plurality of silicon-bonded hydrogen atoms or silicon-bonded alkoxy groups in the molecule. The copolymers are used to improve properties, such as, mechanical strength, adhesiveness, and durability of the an product.Type: GrantFiled: August 26, 1998Date of Patent: January 2, 2001Assignee: Dow Corning Toray Silicone Co., Ltd.Inventor: Makoto Yoshitake
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Patent number: 6150488Abstract: Star- and comb-type branched organosilicon compounds containing .omega.-terminated organopolysiloxane branches are readily synthesized by the catalyzed or uncatalyzed reaction of an at least tris(organyloxy)-functional organosilicon compound with a predetermined amount of substantially linear minimally disilanol-functional organopolysiloxane. Well defined, non-resinous, liquid products of low viscosity may be obtained.Type: GrantFiled: December 30, 1998Date of Patent: November 21, 2000Assignee: Wacker Silicones CorporationInventor: Eugene R. Martin
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Patent number: 6140525Abstract: This invention relates to a macromonomer and a method for its preparation. The macromonomer has silicon-bonded hydrogen atoms at one molecular chain terminal, and aliphatically unsaturated silicon-bonded organic groups at the other molecular chain terminal. This invention further related to a method of forming a hyperbranched polymer by polymerizing the macromonomer with a group VIII metal catalyst. The hyperbranched polymers can be used as surfactants, gelling agents, drug delivery systems, and polymeric absorbents.Type: GrantFiled: December 21, 1998Date of Patent: October 31, 2000Assignees: Russian Academy of Sciences, Dow Corning Corporation, Dow Corning Toray Silicone Co.Inventors: Tadashi Okawa, Aziz Muzafarov, Stephen Cray
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Patent number: 6080829Abstract: Symmetric and asymmetric cyclic silalkylenesiloxane monomers and copolymers thereof are disclosed, as well as crosslinked and/or reinforced silalkylenesiloxane copolymers, medical devices containing such materials, and methods of preparation.Type: GrantFiled: June 24, 1998Date of Patent: June 27, 2000Assignee: Medtronic, Inc.Inventors: Mark A. Tapsak, Edward Di Domenico
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Patent number: 6013753Abstract: An organosilicon compound comprising one aliphatic unsaturation described by formula ##STR1## where each R.sup.1 is an independently selected hydrocarbon radical free from aliphatic unsaturation comprising 1 to about 18 carbon atoms; each R.sup.Type: GrantFiled: December 21, 1998Date of Patent: January 11, 2000Assignee: Dow Corning CorporationInventors: Robert Harold Krahnke, Timothy B. Lueder, Richard Alan Palmer, Nick Evan Shephard
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Patent number: 6011167Abstract: Polyorganosiloxazane is provided which is capable of being converted into a ceramic material having low dielectric constant. The polymer according to the present invention is characterized by comprising the main repeating units of --(RSiN.sub.3)--, --(RSiN.sub.2 O)--, --(RSiNO.sub.2)-- and --(RSiO.sub.3)--, wherein, R represents an alkyl, alkenyl, cycloalkyl, aryl, alkylamino or alkylsilyl group, and by having a number-average molecular weight ranging from 300 to 100,000. The polyorganosiloxazane of the present invention has superior thermal resistance, and a ceramic material obtainable by firing the same at a predetermined temperature shows very low specific dielectric constant of 2.7 or less, making it useful particularly as a material in electronics.Type: GrantFiled: August 26, 1998Date of Patent: January 4, 2000Assignee: Tonen CorporationInventors: Yuuji Tashiro, Osamu Funayama
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Patent number: 6005131Abstract: The present invention relates to novel multi-functional, cyclic organosiloxanes, to a process for the production thereof and to the use thereof.Type: GrantFiled: September 4, 1997Date of Patent: December 21, 1999Assignee: Bayer AktiengesellschaftInventors: Jorg-Dietrich Jentsch, Michael Mager, Markus Mechtel
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Patent number: 5955542Abstract: Novel methods and compositions for improving the flame retardant capabilities of aromatic-based polymers like polycarbonate are disclosed. Other important polymer properties are substantially maintained, such as transparency. One aspect of the invention is directed to a flame retardance additive which comprises a copolymer of an aryl-containing silicone compound and a diorganic polysiloxane compound. In some preferred embodiments, the aryl-containing silicone compound is triphenyl- or diphenyl-based. This invention is also directed to new polymer compositions, which comprise an aromatic-based polymer and the flame retardance additive described above. The polymer compositions can be molded into a variety of articles which have a very useful combination of properties.Type: GrantFiled: March 3, 1997Date of Patent: September 21, 1999Assignee: General Electric CompanyInventors: Gary Charles Davis, Larry Neil Lewis
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Patent number: 5929187Abstract: A novel branched siloxane-silalkylene copolymer containing a plurality of silicon-bonded hydrogen atoms or silicon-bonded alkoxy groups in the molecule. The copolymers are used to improve properties, such as, mechanical strength, adhesiveness, and durability of an end product.Type: GrantFiled: February 23, 1998Date of Patent: July 27, 1999Assignee: Dow Corning Toray Silicone Co., Ltd.Inventor: Makoto Yoshitake
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Patent number: 5882387Abstract: The present invention relates to a wipe-on polish composition which contains no wax or abrasive components. The polish requires minimal effort to wipe out to a thin, glossy, streak-free, hydrophobic film. The polish is comprised of an emulsion that contains an organopolysiloxane and a volatile diluent.Type: GrantFiled: August 6, 1997Date of Patent: March 16, 1999Assignee: Wacker Silicones CorporationInventors: Eugene R. Martin, Michael D. Lowery
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Patent number: 5869724Abstract: The present invention provides asymmetric bidentate silane reagents from modifying the surface of liquid chromatography supports, the supports and methods of making and using the same. When bonded to the surface of a support material, the resulting modified support material provides improved properties, such as better separations and more stable support materials, especially when used in liquid chromatography. These bidentate silanes have the general structure: R.sub.1 SiMe(NMe.sub.2)--(CH.sub.2).sub.n --SiMeR.sub.2 (NMe.sub.2). R.sub.1 is an alkyl group having from 1 to 30 carbon atoms, and R.sub.2 is an alkyl group having from 8 to 18 carbon atoms. R.sub.1 is a different alkyl group than R.sub.2. Me is a methyl group, and n has a value 2 or 3. In certain embodiments, R.sub.2 includes at least one functional group. When reacted with a silica surface, the resulting modified surface has a structure: PSiO--?R.sub.1 SiMe--(CH.sub.2).sub.n --SiMeR!--OSiP. PSiO is a surface reacted silica.Type: GrantFiled: June 20, 1997Date of Patent: February 9, 1999Assignee: Hewlett-Packard CompanyInventors: Joseph J. Kirkland, John B. Adams, Jr.
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Patent number: 5747625Abstract: The present invention provides a novel silicate group-containing polyimide which is excellent in mechanical properties, heat resistance and electrical properties and has an excellent film forming ability. Further, the present invention provides a film-formable heat resistant material having an excellent solvent resistance, elasticity and adhesive property. The silicate group-containing polyimide has a repeated unit represented by the following Formula (1): ##STR1## wherein Ar.sub.1 represents a tetravalent organic group; R.sub.1 and R.sub.2 each are a single bond or represent an alkylene group having 1 to 4 carbon atoms or a phenylene group; R.sub.3 to R.sub.7, R.sub.9 and R.sub.10 each represent a hydrocarbon group having 1 to 6 carbon atoms; R.sub.8 represents an ethylene group or an alkylene group having 3 to 6 carbon atoms; m and n represent independently an integer of 1 to 10; and k represents an integer of 0 to 2.Type: GrantFiled: November 26, 1996Date of Patent: May 5, 1998Assignee: Nippon Steel Chemical Co., Ltd.Inventors: Nobuyuki Furukawa, Takeshi Fujiyama, Masatoshi Yuasa
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Patent number: 5726271Abstract: The present invention relates to a hydroxyphenyl-functional polyorganosiloxane compound having the formula ##STR1## wherein R is independently a monovalent hydrocarbon group free of aliphatic unsaturation, A is a substituted or unsubstituted hydroxyphenyl group, B is selected from the group consisting of alkyleneoxyalkylene groups having at least two carbon atoms and alkylene groups having at least 2 carbon atoms, m is zero or 1, and n is an integer from 0 to 400. The hydroxyphenyl-functional polyorganosiloxanes of this invention are useful as surfactants or as additives for organic polymers.Type: GrantFiled: November 25, 1996Date of Patent: March 10, 1998Assignee: Dow Corning Toray Silicone, Ltd.Inventors: Haruhiko Furukawa, Yoshitsugu Morita, Tadashi Okawa, Hiroshi Ueki
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Patent number: 5710302Abstract: Monomeric units useful in reducing the modulus of hydrogels are disclosed. Silicone hydrogels including the subject monomeric units are especially useful in the formation of biomedical articles such as silicone hydrogel contact lenses. ##STR1## wherein: A is an activated unsaturated group;R and D independently are alkyl, alkylene or haloalkyl groups having 1 to 10 carbon atoms wherein said carbon atoms may include ether linkages therebetween;R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are independently selected from: alkyl or haloalkyl groups wherein ether linkages may be included between carbon atoms; siloxane groups; and carbocyclic ring groups having from 6 to 18 carbon atoms;m is an integer from 1 to 500; n is an integer from 1 to 20; x and y are 0 or 1;z is 1 or 2; and x+y+z=3;so long as at least one of R.sub.1 or R.sub.2 is an alkyl group having from 1 to 10 carbon atoms.Type: GrantFiled: November 12, 1996Date of Patent: January 20, 1998Assignee: Bausch & Lomb IncorporatedInventors: Jay F. Kunzler, Richard M. Ozark
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Patent number: 5679818Abstract: The present invention is a compound having the formula:R.sup.1 --Ac.sup.1 --Ar.sup.1 --M--Ar.sup.2 --Ac.sup.2 --R.sup.2where R.sup.1 and R.sup.2 are independently selected from the group consing of hydrogen, unsubstituted alkyl groups, substituted alkyl groups, unsubstituted aryl groups, and substituted aryl groups, where Ac.sup.1 and Ac.sup.2 are independently selected alkynyl groups having at least 1 carbon-carbon triple bond, where Ar.sup.1 and Ar.sup.2 are independently selected substituted or unsubstituted aromatic diradicals, and where M has the structure ##STR1## where m is a positive integer, wherein x, p, y, r, n, and z are independently selected integers, where z.noteq.0 when n.noteq.0, and where R.sup.3 through R.sup.14 are independently selected from the group consisting of hydrogen, unsubstituted alkyl groups, substituted alkyl groups, unsubstituted aryl groups, and substituted aryl groups.Type: GrantFiled: July 26, 1996Date of Patent: October 21, 1997Assignee: The United States of America as represented by the Secretary of the NavyInventors: Daniel Bucca, Teddy M. Keller
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Patent number: 5581008Abstract: The present invention relates to branched silicon-bonded hydrogen endblocked organosilicon compounds containing silalkylene groups and to a method for the preparation of such compounds. The organosilicon compounds of this invention are soluble in certain organic solvents and can be prepared such that they have a very high weight average molecular weight.Type: GrantFiled: July 21, 1995Date of Patent: December 3, 1996Assignee: Dow Corning Toray Silicone Co., Ltd.Inventor: Hideki Kobayashi
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Patent number: 5567833Abstract: A curable composition which comprises(C) a non-polymeric organic curing agent having at least two hydrosilyl groups in a molecule,(D) an organic polymer having at least one alkenyl group in a molecule, and(E) a hydrosilylation catalysthas rapid curability and good depth curability, and gives a homogeneous cured material having good mechanical properties.Type: GrantFiled: September 26, 1994Date of Patent: October 22, 1996Assignee: Kanegafuchi Chemical Industry Co., Ltd.Inventors: Takahisa Iwahara, Makoto Chiba, Tomoko Takahara, Kazuya Yonezawa
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Patent number: 5557000Abstract: The goal of this invention is to offer a silicone oil for low temperature use which possesses a superior fluidity even at low temperature, along with a small viscosity change with temperature. Disclosed is a silicone oil for low temperature mechanical use which contains siloxanes having siloxy alkyl groups of formulae (1) and (2) below, as main components: ##STR1## wherein R is at least one organic group selected from the group consisting of: alkyl groups, aryl groups, aralkyl groups, and halogenated alkyl groups, the sum of subscripts l+m+n is at least 2 and m+n is at least 1 and R.sub.1 is a monovalent siloxy alkyl group expressed by formula (3): ##STR2## wherein a is an integer of at least 2 and b is also an integer of at least 0.Type: GrantFiled: November 25, 1994Date of Patent: September 17, 1996Assignee: Shin-Etsu Chemical Co., Ltd.Inventor: Masahiko Minemura
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Patent number: 5548051Abstract: Single component inorganic/organic network materials incorporating the physical properties of glasses with the flexibility of organic materials of empirical formula X(SiO.sub.1.5).sub.n wherein X is one or more flexible organic linkages and n is greater than or equal to 2, as well as precursors thereof, are disclosed.Type: GrantFiled: August 7, 1995Date of Patent: August 20, 1996Assignee: E. I Du Pont de Nemours and CompanyInventors: Michael J. Michalczyk, Kenneth G. Sharp
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Patent number: 5531813Abstract: A polyorgano amino functional oil release agent having at least 85% monoamino functionality per active molecule to interacts with the thermally stable FRM hydrofluoroelastomer surface of a fuser member of an electrostatographic apparatus to provide an interfacial barrier layer to the toner and a low surface energy film to release the toner from the surface is introduced herein.Type: GrantFiled: September 29, 1994Date of Patent: July 2, 1996Assignee: Xerox CorporationInventors: Arnold W. Henry, Donald A. Seanor, George J. Heeks, Clifford O. Eddy, Che C. Chow, Santokh S. Badesha, Samuel Kaplan, David H. Pan
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Patent number: 5516361Abstract: A fusing system, method of fusing with a fuser member having a thermally stable FKM hydrofluoroelastomer surface for fusing thermoplastic resin toners to a substrate in an electrostatographic printing apparatus has a polyorgano T-type amino functional oil release agent, the oil having predominantly monoamino functionality per active molecule to interact with the hydrofluoroelastomer surface to provide a substantially uniform interfacial barrier layer to the toner and a low surface energy film to release the toner from the surface.Type: GrantFiled: October 17, 1994Date of Patent: May 14, 1996Assignee: Xerox CorporationInventors: Che C. Chow, Alvin D. Kromm, Jr.
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Patent number: 5486565Abstract: The present invention relates to organosiloxane compositions that are reaction products of 1) a silane containing at least 3 hydrolyzable groups per molecule, 2) a monohydric or polyhydric alcohol containing at least one organofunctional group and 3) a polyhydric alcohol containing no organofunctional groups or ethylenic unsaturation, wherein said reaction products contain at least two silicon atoms. The organosiloxane compositions are particularly useful as adhesion promoting additives for curable organosiloxane compositions, particularly those that cure by a platinum group metal-catalyzed hydrosilation reaction.Type: GrantFiled: December 2, 1994Date of Patent: January 23, 1996Assignee: Dow Corning CorporationInventors: Theresa E. Gentle, Michael A. Lutz
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Patent number: 5484868Abstract: An organic silicon alternating copolymer which resistant to chain scission by acid or alkali is disclosed, said copolymer comprising repeat units having the formula ##STR1## wherein R represents a monovalent hydrocarbon group having 1 to 10 carbon atoms and containing no aliphatic unsaturation, R.sup.1 represents a fluorine atom-containing monovalent organic group having 4 to 10 carbon atoms and containing at least two groups of the formula -CF.sub.2 -, R.sup.2 represents an alkylene group having 2 to 10 carbon atoms and said copolymer has a degree of polymerization of 1 to 10,000.Type: GrantFiled: January 26, 1995Date of Patent: January 16, 1996Assignee: Dow Corning Toray Silicone Co., Ltd.Inventor: Hideki Kobayashi
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Patent number: 5484950Abstract: A process for the selective monoadditon of an olefin or acetylene to a siloxane which contains two reactive Si--H bonds to produce a product in which only one of the two Si--H functions has added across the olefin or acetylene is disclosed. A process for making unsymmetrical siloxanes from symmetrical dihydrosiloxanes and products of both of these processes are also disclosed. Products are represented by the formula I in which R.sup.1 and R.sup.Type: GrantFiled: December 21, 1992Date of Patent: January 16, 1996Assignee: Polyset Company, Inc.Inventor: James V. Crivello
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Patent number: 5451339Abstract: The present invention is to provide a liquid crystal monomeric compound where a liquid crystal phase readily appears, which is excellent in alignment control, film-formability, durability, heat-stability and compatibility, and is able to be applied to electro-optical liquid crystal elements and recording elements; and a side-chain liquid crystal polymer compound modified with such a monomeric compound.The liquid crystal monomeric compound is represented by the following formula:CH.sub.2 .dbd.CH--(CH.sub.2).sub.m --R [1]wherein m is an integer of 2 to 20 and R is a group selected from the group consisting of ##STR1## wherein p is 1 or 2, Rf is CF.sub.3 or CF.sub.2 F.sub.5, R.sup.1 is an alkyl group having 3-18 carbon atoms, * means an optically active carbon atom, (A) and (B) each is a group independently selected from the group consisting of ##STR2## which may be substituted with one or more halogen atoms, and X is --O--, --COO--or a direct linkage, and ##STR3## wherein p, Rf, R.sup.Type: GrantFiled: May 19, 1993Date of Patent: September 19, 1995Assignee: Showa Shell Sekiyu Kabushiki KaishaInventors: Yoshiichi Suzuki, Yoshio Imai, Masaaki Kakimoto
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Patent number: 5442083Abstract: There is disclosed a method for the preparation of an organosilicon polymer having the structure ##STR1## wherein each R.sup.1 is a monovalent hydrocarbon group, R.sup.2 is an alkylene group, R.sup.3 is selected from hydrogen, an alkenyl group or a hydroxyl group, m is zero or greater and n is 1 or more, said method comprising:reacting(A) diorganosiloxane having the general formula ##STR2## (B) an unsaturated aliphatic hydrocarbon having 3 to 10 carbon atoms that contains 2 carbon-carbon double bonds and an unsaturated aliphatic hydrocarbon having 2 to 10 carbon atoms that contains 1 carbon-carbon triple bond, said reaction taking place in the presence of(C) a hydrosilylation-reaction catalyst.Type: GrantFiled: August 24, 1994Date of Patent: August 15, 1995Assignee: Dow Corning Toray Silicone Company, Ltd.Inventor: Hideki Kobayashi
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Patent number: 5437817Abstract: Liquid crystalline organopolysiloxane is provided having the general formula:R.sub.a (A).sub.b (B).sub.c SiO.sub.(4-a-b-c)/2wherein R is independently selected from the group consisting of a hydrogen atom, hydrocarbon group having i to 4 carbon atoms, and phenyl group, A is a group of the formula: ##STR1## wherein m, n, and x are integers in the range: m.gtoreq.3, n.gtoreq.2, 5.ltoreq.m+nx.ltoreq.15, x=1 or 2, B is an organic chromophore group having an absorption peak in the visible spectrum, a, b, and c are numbers in the range: 1.ltoreq.a<2, 0<b+c.ltoreq.1, 0.45.ltoreq.b(b+c).ltoreq.0.95, and 1<a+b+c.ltoreq.3. This organopolysiloxane as a high molecular weight liquid crystal is combined with a low molecular weight liquid crystal to form a liquid crystal composition.Type: GrantFiled: November 27, 1991Date of Patent: August 1, 1995Assignees: Shin-Etsu Chemical Company, Limited, Toyota Jidosha Kabushiki KaishaInventors: Takashi Kondou, Masaaki Yamaya, Hiroshi Yoshioka, Yasuhiro Ohtsuka, Kazuo Tojima, Yasufumi Shibata, Naomi Ohkuwa, Shinobu Okayama
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Patent number: 5430082Abstract: An elastomer-forming silicone composition comprising (A) a vinyl-organopolysiloxane, (B) an organosilicon compound, (C) a noble metal catalyst and (D) an adhesion promoter characterised in that the adhesion promotor is the product of the mixture or reaction of (1) an organosiloxane compound having at least two trialkoxysilyl groups, (2) an unsaturated alcohol having at least one .alpha.,.beta.-unsaturated alkenyl group and has improved adhesion without the toxic disadvantages of the prior art.Type: GrantFiled: December 20, 1993Date of Patent: July 4, 1995Assignee: Dow Corning GmbHInventor: Peter O. Bentz
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Patent number: 5386049Abstract: Organic silicone compounds of this invention are expressed by the following general chemical formula: ##STR1## wherein R.sup.1 is a substituted or unsubstituted alkyl group with 1 to 4 carbon atoms, R.sup.2 is substituted or unsubstituted monovalent hydrocarbon group, X is either a hydrogen atom or a triorganosilyl group which is expressed by the following general chemical formula (2): ##STR2## wherein R.sup.3, R.sup.4 and R.sup.5 are a substituted or unsubstituted monovalent hydrocarbon group with 1 to 8 carbon atoms, each of which may be the same or different, p is an integer from 4 to 16, m is an integer from 0 to 1000, and n is an integer from 1 to 1000. The organic silicon compounds of this invention are extremely useful as raw material of rubber cured products with high strength and a superior transparency.Type: GrantFiled: February 17, 1993Date of Patent: January 31, 1995Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Hirofumi Kishita, Shinichi Sato, Kouichi Yamaguchi, Noriyuki Koike, Takashi Matsuda
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Patent number: 5359109Abstract: The present invention provides a class of surface-active siloxane compounds each having a single reactive alkoxysilane moiety. The siloxane compounds are linear or cyclic and are reactive to moisture and to compositions having hydroxyl-functionality.Type: GrantFiled: June 16, 1993Date of Patent: October 25, 1994Assignee: OSi Specialties, Inc.Inventors: James S. Ritscher, James D. Reedy, Kenneth W. Hartman
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Patent number: 5312946Abstract: Siloxane fluids containing novel siloxane polymers prepared from mixtures of disilanes, disiloxanes and silylmethylenes, and a method for recovering fully alkylated linear and cyclic siloxanes with disilane, disiloxane and silylmethylene bonds, such as from methylchlorosilane residue cleavage bottoms, are disclosed.Type: GrantFiled: April 13, 1992Date of Patent: May 17, 1994Assignee: General Electric CompanyInventors: Robert G. Stank, Luisito A. Tolentino, Alan Ritzer, Frank J. Traver
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Patent number: 5310846Abstract: A fluorine-containing silicone rubber composition comprising (A) a fluorocarbonsiloxane having the following general formula (1): ##STR1## wherein a to d is a positive integer, R.sup.1 and R.sup.2 are a monovalent hydrocarbon group free of aliphatic unsaturated groups, R.sup.3 is a monovalent hydrocarbon group containing an aliphatic unsaturated bond, Rf.sup.1 is a fluorine-containing alkylene polyether group, and (B) an organic peroxide. The composition is excellent in solvent resistance, chemical resistance and water and oil repellency, and can be molded by press molding and has been improved in respect of insufficient curing.Type: GrantFiled: March 24, 1993Date of Patent: May 10, 1994Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Hiroshi Inomata, Hirofumi Kishita, Shinichi Sato, Noriyuki Koike, Takashi Matsuda
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Patent number: RE35462Abstract: The present invention relates to compounds of the formula ##STR1## in which Z is a halogen atom, a cyano group or a hydroxyl group,n is 0, 1 or 2,R' is a radical of the formulaR"'--[Si(R*).sub.2 ].sub.x (CH.sub.2).sub.y R""-- (9),in whichx is the number 0 or 1,y is an integer from 1 to 18,R"'is a defined in the description,R* is identical or different, optionally substituted C.sub.1 - to C.sub.18 -hydrocarbon or hydrocarbonoxy radicals,R"" is a phenylene or biphenylene radical or a radical of the formula --E--, whereE is a divalent radical of the formula --O-- or --[Si(R*).sub.2 ].sub.z --, andz is the number 0 or 1,and the compounds contain at least one group of the formula --Si(R*).sub.2 -- per molecule, and the radicalR" is a cholesteryl radical, a radical as defined for R* or a radical of the formula --C.sub.6 H.sub.4 --R*,and the preparation and use thereof.Type: GrantFiled: February 7, 1994Date of Patent: February 25, 1997Assignee: Consortium fur elekochemische Ind. GmbHInventors: Wolfgang Haas, Norman Haberle, Rainer Winkler, Franz-Heinrich Kreuzer