Silicon And Carbon Bonded Directly To The Same Oxygen Patents (Class 556/457)
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Patent number: 6291697Abstract: The siloxane compounds represented by the following formula: SiOa(OH)b(OR1)c(OR2)d wherein 1.0≦a≦1.6, 0≦b<0.3, 0.2≦c≦2.0, 0≦d≦1.4, 2a+b+c+d=4, R1 is a methyl or ethyl group, and R2 is an organic group different from R1.Type: GrantFiled: November 9, 1998Date of Patent: September 18, 2001Assignee: Mitsubishi Chemical CorporationInventors: Seiichirou Tanaka, Hanako Kato, Takeshi Sawai, Kenji Oba, Hozumi Endo, Haruo Katsumata
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Patent number: 6271167Abstract: Disclosed are a catalyst for polymerizing olefins containing a solid catalyst component containing titanium, magnesium and halogen as essential components (component (A)); an organic aluminum compound (component (B)); and a silane compound (component (C)) represented by general formula (1) wherein R1 and R2 independently represent a straight, branched or cyclic saturated aliphatic hydrocarbon group or a silyl group, a method of preparing polyolefins using the catalyst as well as novel trimethoxysilane compounds represented by the general formula (1) in which R1 is a straight saturated aliphatic hydrocarbon group having 2 to 10 carbon atoms, and R2 represents a methyl group. Use of the catalyst enables efficient production of polyolefins having a low molecular weight (MFR>20 (g/10 minutes)), a broad molecular weight distribution (MLMFR/MFR>22) and a high stereoregularity when applied to polymerization of olefins having 3 or more carbon atoms.Type: GrantFiled: January 5, 2000Date of Patent: August 7, 2001Assignee: Japan Polyolefins Co., Ltd.Inventors: Masaki Fushimi, Toshio Fujita, Shintaro Inazawa
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Patent number: 6271331Abstract: The present invention relates to multifunctionalized alkoxy, the alkoxy functionality Y being introduced onto a suitable polyhydroorganosiloxane by a dehydrogenation/condensation reaction from the alcohol from which Y derives and then the functionality W by a hydrosilylation reaction from the olefinic compound form which W derives. The multifunctionalized alkoxy polyorganosiloxanes can be used as antiadhesion modulators in silicone compositions and as silica covering agents in silicone compositions containing fillers.Type: GrantFiled: December 3, 1999Date of Patent: August 7, 2001Inventors: Michel Gay, Philippe Jost, Michel Peignier, Christian Priou
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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: 6258969Abstract: A polyalkoxysiloxane of the following rational formula: SiOa(OR)b(OH)c wherein R is a C1-4 alkyl group, a=0.86 to 1.30, b=2.18 to 1.30, and c≦0.10.Type: GrantFiled: October 2, 1996Date of Patent: July 10, 2001Assignee: Mitsubishi Chemical CorporationInventors: Takeshi Sawai, Hanako Kato, Seiichiro Tanaka, Akihiro Takazawa, Haruo Katsumata, Hozumi Endo
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Patent number: 6255516Abstract: Fluoroalkyl organosilicon compounds are prepared by reacting fluoroolefins with organosilicon compounds that contain at least one H-Si group, in the presence of a Pt(0) complex catalyst. Further, fluoroalkylalkoxy organosilicon compounds are prepared by esterifying fluoroalkyl organosilicon compounds. The process proceeds uniformly under mild conditions with high yields and selectivities.Type: GrantFiled: December 9, 1998Date of Patent: July 3, 2001Assignee: Huels AktiengesellschaftInventors: Peter Jenkner, Albert-Johannes Frings, Michael Horn, Jaroslaw Monkiewicz, Burkhard Standke
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Patent number: 6248854Abstract: An epoxysiloxane condensate is modified by means of an in situ reaction with an organic compound, which is di-functional or multifunctional if warranted. By means of the disclosed method, the characteristics of epoxysiloxane condensates, epoxy resin mixtures, epoxy resin formulations and molded bodies manufactured therefrom can be varied easily and economically.Type: GrantFiled: January 26, 1999Date of Patent: June 19, 2001Assignee: Siemens AktiengesellschaftInventors: Klaus Höhn, Ernst Wipfelder
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Patent number: 6218499Abstract: A curable composition comprising (A) a fluorinated organic silicon compound of the formula: Z—R1—Rf—R1—Z wherein Rf is a divalent fluorinated polyether group, R1 is a divalent hydrocarbon group, and Z is a silyl or siloxane group terminated with OH, (B) an organic silicon compound as a crosslinking agent, and (C) a condensation accelerator is curable to depth at room temperature even in the absence of moisture.Type: GrantFiled: February 23, 1999Date of Patent: April 17, 2001Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Yasuo Tarumi, Shinichi Sato, Noriyuki Koike, Takashi Matsuda, Masatoshi Arai
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Patent number: 6197989Abstract: A fluorine-containing organic silicon compound represented by the following formula 1, which is useful as various industrial base materials required to have performances such as water and oil repellency, anti-fouling properties or release properties and as raw materials therefor.Type: GrantFiled: March 17, 1999Date of Patent: March 6, 2001Assignees: Asahi Glass Company Ltd., OSi Specialties, Inc.Inventors: Yutaka Furukawa, Mami Kotera, Seisaku Kumai, Robert E. Ruckle, Jr., Gerald J. Murphy
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Patent number: 6140444Abstract: The invention relates to a catalyst system for reacting a silanol group with an alkoxysilane containing a polymerizable ethylenically unsaturated group. The catalyst system includes an organo-lithium reagent and a hydroxylamine. The catalyst system, permits reaction of the silanol group with alkoxysilanes containing rapidly polymerizable ethylenically unsaturated groups, such as an acryloxyalkyl group, for instance an acryloxypropyl group.Type: GrantFiled: January 19, 1999Date of Patent: October 31, 2000Assignee: Loctite CorporationInventors: Michael P. Levandoski, Hsien-Kun Chu
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Patent number: 6017849Abstract: The present invention generally relates to the regulation of plant physiology, in particular to methods for inhibiting the ethylene response in plants or plant products, and has three embodiments. The first embodiment relates to methods of minimizing impurities capable of reversibly binding to plant ethylene receptor sites during the synthesis of cyclopropene and its derivatives such as methylcyclopropene, thereby avoiding the negative effects these impurities have on plants treated with cyclopropene and its derivatives. The second embodiment relates to complexes formed from molecular encapsulation agents such as cyclodextrin, and cyclopropene and its derivatives such as methylcyclopropene, in addition to cyclopentadiene and diazocyclopentadiene and their derivatives, thereby providing a convenient means for storing and transporting these compounds capable of inhibiting the ethylene response in plants, which are reactive gases and highly unstable because of oxidation and other potential reactions.Type: GrantFiled: August 20, 1998Date of Patent: January 25, 2000Assignee: Biotechnologies for Horticulture, Inc.Inventors: James Daly, Bob Kourelis
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Patent number: 6001140Abstract: The present invention relates to diesel fuel and lubrication oil defoaming agents, and crude oil demulsifiers, as well as methods for using same. In particular, the defoaming agents and demulsifiers are comprised of copolymers which have structures constituting a backbone of polysiloxane onto which is grafted an organic group. These structures comprise a polymer of the formula MD.sub.x D'.sub.y D".sub.z M, where M is O.sub.0.5 Si(CH.sub.3).sub.3, D is a OSi(CH.sub.3).sub.2, D' is OSi(CH.sub.3)R, D" is OSi(CH.sub.3)R', R is a polyhydric C.sub.6 -C.sub.28 organic group, R' is a phenol derivative or a long chain aliphatic group or polyethers, z is between 0 and 80, x+y+z is between 10-200, x/z is .gtoreq.1, and x/(y+z) is between about 1 and about 5, or formula M'D.sub.a M' where M' is O.sub.0.5 Si(CH.sub.3).sub.2 R, a is between 4-10, and R and D are the same as defined above.Type: GrantFiled: April 3, 1997Date of Patent: December 14, 1999Assignee: Witco CorporationInventors: Wojciech Grabowski, Rolf Haubrichs
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Patent number: 5998651Abstract: A method for forming alkyl silicate easily at low costs. The method comprises a reaction step of mixing and reacting an aqueous solution of sodium silicate, and a solution of alcohol or alkyl halide in a water-insoluble organic solvent, in the presence of a catalyst; and an isolating step of separating an organic layer from the reactive mixed solution and isolating a reaction product from the organic layer.Type: GrantFiled: March 12, 1999Date of Patent: December 7, 1999Assignee: Hiroshi OkamotoInventors: Hiroshi Okamoto, Shin-ichi Inoue
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Patent number: 5932757Abstract: A mixture of oligomers of alkylalkoxysilanes condensed in the chain and/or cyclic form, said mixture of oligomers containing less than 2% by weight of free alcohols and the condensed alkoxysilanes satisfying formula I: ##STR1## wherein R is an alkyl group having 3 to 18 carbon atoms, and each R' is a member (i) selected from the group consisting of methyl, ethyl or hydrogen, or is (ii) methyl or hydrogen, or is (iii) ethyl or hydrogen, the degree of oligomerization being in the range 2.ltoreq.x.ltoreq.20 and the quotient of the molar ratio ?Si/alkoxy group!.gtoreq.1; and/orsatisfying formula II: ##STR2## in which R is an alkyl group having 3 to 18 carbon atoms, and each R' is a member (i) selected from the group consisting of methyl, ethyl or hydrogen, or is (ii) methyl or hydrogen or is (iii) ethyl or hydrogen, the degree of oligomerization being x.gtoreq.3 and the quotient of the molar ratio ?Si/alkoxy group!.gtoreq.1.Type: GrantFiled: June 17, 1997Date of Patent: August 3, 1999Assignee: Huls AktiengesellschaftInventors: Burkhard Standke, Roland Edelmann, Albert Frings, Michael Horn, Peter Jenkner, Ralf Laven, Jaroslaw Monkiewicz, Lothar Elfenthal, Hans-Hermann Luginsland
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Patent number: 5928723Abstract: A process for producing surface modified metal oxide and/or organo-metal oxide compositions comprising esterifying at least a portion of the metal oxide and/or organo-metal oxide composition through contact with at least one esterification agent and at least one catalyst wherein the esterification agent and the catalyst are in the liquid phase. The process may be utilized to produce hydrophobic metal oxide and/or organo-metal oxide compositions at ambient temperature and/or ambient pressure conditions.Type: GrantFiled: April 9, 1997Date of Patent: July 27, 1999Assignee: Cabot CorporationInventors: Kenneth C. Koehlert, Douglas M. Smith, William C. Ackerman, Stephen Wallace, David J. Kaul
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Patent number: 5874602Abstract: A process for preparing a compound having the formula ##STR1## is disclosed, said process comprising hydrolyzing an organosilicon compound of the formula ##STR2## wherein X is a radically polymerizable group-functional organic group, R.sup.1 is independently selected from monovalent hydrocarbon groups that are free of aliphatic unsaturation, R.sup.2 is independently selected from the group consisting of hydrogen and a monovalent hydrocarbon group and m is an integer having a value of 1 to 3.Type: GrantFiled: March 27, 1998Date of Patent: February 23, 1999Assignee: Dow Corning Toray Silicone Co., Ltd.Inventors: Ryuko Manzouji, Tadashi Okawa
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Patent number: 5869728Abstract: Fluoroalkyl organosilicon compounds are prepared by reacting fluoroolefins with organosilicon compounds that contain at least one H--Si group, in the presence of a Pt(0) complex catalyst. Further, fluoroalkylalkoxy organosilicon compounds are prepared by esterifying fluoroalkyl organosilicon compounds. The process proceeds uniformly under mild conditions with high yields and selectivities.Type: GrantFiled: October 21, 1997Date of Patent: February 9, 1999Assignee: Huels AktiengesellschaftInventors: Peter Jenker, Albert-Johannes Frings, Michael Horn, Jaroslaw Monkiewicz, Burkhard Standke
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Patent number: 5861467Abstract: The present invention relates to radiation curable silicone vinyl ethers and methods for preparing silicone vinyl ethers. More particularly, the present invention relates compositions containing vinyl ether functional silicones and to the preparation and use of silicone vinyl ethers which are curable by addition of photocleavable acids and exposure to ultraviolet or electron beam radiation.Type: GrantFiled: May 18, 1993Date of Patent: January 19, 1999Assignee: Dow Corning CorporationInventors: Valerie Joy Bujanowski, Shedric Oneal Glover, Susan Victoria Perz, Maris Jazeps Ziemelis, Gary Rex Homan, Michael Ward Skinner
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Patent number: 5856546Abstract: A method for the preparation of potassium silanolates comprising reacting a mixture comprising solid potassium hydroxide and a polyorganosiloxane described by formula R.sup.1 R.sup.1 R.sup.2.sub.2 SiO(R.sup.2.sub.2 SiO).sub.m R.sup.3 or (R.sup.2.sub.2 SiO).sub.n, where m is an integer from 1 to about 1000, n is an integer from 3 to about 20, R.sup.1 a hydroxyl group or an alkoxy group comprising from 1 to about 8 carbon atoms and R.sup.2 is a hydrogen atom or an independently selected substituted or unsubstituted monovalent hydrocarbon group comprising from 1 to about 8 carbon atoms R.sup.3 is a hydrogen atom or an alkyl group comprising from 1 to 8 carbon atoms in the presence of an organic solvent which forms an azeotrope with water at a temperature within a range of about 90.degree. C. to 150.degree. C. thereby forming a potassium silanolate.Type: GrantFiled: December 12, 1997Date of Patent: January 5, 1999Assignee: Dow Corning CorporationInventors: Daniel Graiver, Arnold Wade Lomas, Edward Thomas Rasmussen, Jr., Kelly James Wall
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Patent number: 5824761Abstract: The present invention relates to radiation curable silicone vinyl ethers and methods for preparing silicone vinyl ethers. More particularly, the present invention relates compositions containing vinyl ether functional silicones and to the preparation and use of silicone vinyl ethers which are curable by addition of photocleavable acids and exposure to ultraviolet or electron beam radiation.Type: GrantFiled: January 16, 1997Date of Patent: October 20, 1998Assignee: Dow Corning CorporationInventors: Valerie Joy Bujanowski, Shedric Oneal Glover, Susan Victoria Perz, Maris Jazeps Ziemelis, Gary Rex Homan, Michael Ward Skinner
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Patent number: 5605997Abstract: A process of producing an organopolysiloxane, comprising hydrolyzing and condensing an alkoxysilane having the formula:R.sub.m Si(OR.sup.1).sub.4-mwherein R is a monovalent hydrocarbon group, R.sup.1 is an alkyl group and m is an integer of 0 to 3, or a partial hydrolysis-condensation product thereof, in the presence of a fluorine compound selected from the group consisting of fluoride salt compounds and fluorine-containing silicon compounds having at least one Si-F bond in its molecule. The organopolysiloxane obtained contains little silanol groups and has a narrow molecular weight distribution. Therefore, curable silicone resin compositions containing the organopolysiloxane as a raw material have good shelf stability, drying characteristics and curability, and are free of fear of catching fire or contamination of surroundings. An organopolysiloxane having a variety of functional groups can be readily produced.Type: GrantFiled: October 5, 1995Date of Patent: February 25, 1997Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Kenji Yamamoto, Masaaki Yamaya
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Patent number: 5563230Abstract: A chiral smectic liquid crystalline polymer having the following formula is disclosed: ##STR1## wherein m is an integer of about 40-80; n is an integer of about 1-12;R is ethylene or trimethylene;R' is methylene or oxyethylene;Ar is phenylene, chlorophenylene or ##STR2## wherein x is chlorine or hydrogen; and Ar' is phenylene or phenylenecarbonyl.Type: GrantFiled: September 9, 1994Date of Patent: October 8, 1996Assignee: National Science CouncilInventors: Chain-Shu Hsu, Jhy-Horung Lin, Li-Jen Shih, Ging-Ho Hsiue
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Patent number: 5563231Abstract: This invention relates to water-dispersible compounds that are useful as lubricants for textile wet processing having formula (I): ##STR1## wherein R is C.sub.1 -C.sub.10 alkylene;R.sup.1 is an m-functional group having the formula ##STR2## R.sup.2 and R.sup.3 are independently C.sub.1 -C.sub.10 alkyl or groups having the formula ##STR3## R.sup.4 is hydrogen, acyl, or trialkylsilyl; R.sup.5 and R.sup.6 are independently alkyl, alkoxy, --Z--(O--B).sub.s --OR.sup.4, or --Y--(O--A).sub.r --;R.sup.7 and R.sup.8 are independently alkyl, alkoxy, or --Z--(O--B).sub.s --OR.sup.4 ;X is hydrogen, (cyclo)alkyl, (cyclo)alkenyl, --NR.sup.c R.sup.d, --NR.sup.c R.sup.d R.sup.e+ Q.sup.-, --OR.sup.f, --SR.sup.g, --NH--CO--NH--R.sup.h, --O--CO--NH--R.sup.i, --NH--CO--O--R.sup.j, --CN, or halogen;A and B are independently alkylene;Y and Z are independently a direct bond or alkylene;m is from 1 to 20;r and s are independently from 0 to 20; andn and p are from 0 to 100 and the total (n+p) is from 10 to 100.Type: GrantFiled: June 6, 1995Date of Patent: October 8, 1996Assignee: Bayer CorporationInventors: Lloyd Barringer, Jr., Thomas P. Bellina, Brad A. Ziegler
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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: 5521238Abstract: The present invention relates to an organopolysiloxane emulsion composition comprising a hydroxy or alkoxy-endblocked diorganopolysiloxane, an alkoxy-group containing organosilicon compound, surfactant, and water. The compositions of this invention are characterized by a lack of offensive odor, high productivity and good storage stability. The organopolysiloxane emulsions of this invention are useful as fiber treatment agents. The fibers treated with the organopolysiloxane emulsion of this invention exhibit good feel.Type: GrantFiled: December 22, 1994Date of Patent: May 28, 1996Assignee: Dow Corning Toray Silicone Co., Ltd.Inventors: Isao Ona, Masaru Ozaki, Toshio Saruyama, Masahiko Suzuki
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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: 5478546Abstract: An alkoxysilane is brought into a hydrolysis-polycondensation reaction using a fluoride salt, e.g. NaF, or a fluorine-containing silicon compound having an Si--F bond in its molecule, e.g. FSi(OCH.sub.3).sub.3, as a catalyst, to produce a powder of a silicon compound such as silica. The process reduces markedly the period of time required for the hydrolysis-polycondensation reaction and yields a porous silicon compound powder with low bulk specific gravity. The catalyst is excellent in handleability and safety.Type: GrantFiled: March 11, 1994Date of Patent: December 26, 1995Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Kazuyuki Matsumura, Masaaki Yamaya
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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: 5412055Abstract: Disclosed are organosilicon crosslinked polymers and crosslinkable prepolymers that are the reaction product of (a) a cyclic polysiloxane in which each silicon atom is substituted with (i) a saturated, substituted or unsubstituted alkyl or alkoxy group or a substituded or unsubstituted aryl or aryloxy group, and (ii) a substituted or unsubstituted hydrocarbon group having at least one carbon-carbon double bond that is reactive in hydrosilation, (b) at least one organosilicon compound having at least two .tbd.SiH groups, and optionally (c) a hydrocarbon polyene having at least two nonaromatic carbon-carbon double bonds that are reactive in hydrosilation. A process for preparing the polymers and prepolymers and for preparing the cyclic polysiloxanes is also disclosed.Type: GrantFiled: April 18, 1994Date of Patent: May 2, 1995Assignee: Hercules IncoporatedInventor: De-Kai Loo
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Patent number: 5386048Abstract: The invention provides silicon substituted fullerene compounds. The compounds can form polymers or wrapped fullerenes. The compounds may be made by reacting an organo-silicon compound with a fullerene in the presence of a catalyst by a hydrosilylation reaction.Type: GrantFiled: November 24, 1993Date of Patent: January 31, 1995Assignee: Wisconsin Alumni Research FoundationInventors: Robert C. West, Kunio Oka
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Patent number: 5376715Abstract: The invention relates to silicon compounds, to mixtures thereof in aromatic polycarbonates and aromatic polyester carbonates and to their use as heat stabilizers in aromatic polycarbonates and aromatic polyester carbonates.Type: GrantFiled: January 18, 1994Date of Patent: December 27, 1994Assignees: Bayer Aktiengesellschaft, Miles Inc.Inventors: Gerhard Fennhoff, Jurgen Kirsch, Karsten-Josef Idel, Klaus Kircher, Charles Lundy
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Patent number: 5357018Abstract: Polysiloxane-polyoxyaikylene block copolymers, which are intended for the production of polyurethane foams, are prepared. The foams obtained have an improved, finer cell structure and the collapse of the foams is reduced. It is essential for the invention that a mixture of polyoxyalkylene groups is present in the polysiloxane-polyoxyalkylene block copolymers. Further particulars are laid down for selecting the different polyoxyalkylene groups with regard to the respective molecular weights and the ratio of polyoxyalkylene groups to one another.Type: GrantFiled: December 29, 1993Date of Patent: October 18, 1994Assignee: Th. Goldschmidt AGInventors: Georg Burkhart, Rolf-Dieter Langenhagen, Andreas Weier, Volker Zellmer
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Patent number: 5350538Abstract: This invention provides a high polymer having the following repeating unit (I), a diene compound which is represented by the following formula (II) and is a raw material of the high polymer: ##STR1## and a ferroelectric liquid-crystalline composition containing the high polymer and a low molecular weight smectic liquid-crystalline compound. The ferroelectric liquid-crystalline composition is easy to orient and exhibits a fast response against applied electric field.Type: GrantFiled: July 2, 1993Date of Patent: September 27, 1994Assignee: Idemitsu Kosan Co., Ltd.Inventors: Fumio Moriwaki, Hiroyuki Endo, Satoshi Hachiya
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Patent number: 5346968Abstract: Oligosiloxanes of the formula I ##STR1## where R.sup.1 is a C.sub.1 -C.sub.4 -alkyl andn is from 2 to 50,are chiefly used for fabricating fiber-reinforced composite and ceramic materials.Type: GrantFiled: December 1, 1993Date of Patent: September 13, 1994Assignee: BASF AktiengesellschaftInventor: Karl-Heinz Haas
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Patent number: 5319121Abstract: A method is provided for preparing preceramic polymers and and silicious ceramic materials which derive therefrom. The preceramic polymers are polysiloxanes which are synthesized by catalytically activating Si--H bonds in a hydridosiloxane starting material and replacing the activated hydrogen atoms with non-hydrogen substituents. These preceramic polysiloxanes are pyrolyzed in a selected atmosphere to give the desired ceramic product. Ceramic products which may be prepared by this technique include silica, silicon oxynitride, silicon carbide, and metal silicates.Type: GrantFiled: July 2, 1992Date of Patent: June 7, 1994Assignee: SRI InternationalInventor: Yigal Blum
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Patent number: 5310842Abstract: The invention provides a higher alkoxy-substituted organopolysiloxane having, in a molecule, at least one alkoxy group of 4 to 30 carbon atoms bonded to the silicon atom excepting those at the molecular chain ends and still having a high degree of polymerization of at least 15. Such an organopolysiloxane, not known in the prior art, can be prepared by the dehydrogenation condensation reaction between an organohydrogenpolysiloxane and a higher aliphatic alcohol in the presence of a catalyst system consisting of a platinum compound and an organic acid such as acetic and citric acids. The higher alkoxy-substituted organopolysiloxane is useful as an additive in toiletry and cosmetic preparations by virtue of the good compatibility with other ingredients therein and high resistance against hydrolysis.Type: GrantFiled: April 14, 1993Date of Patent: May 10, 1994Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Shoji Ichinohe, Syuichi Arai
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Patent number: 5288891Abstract: A fluoroalkyl group-containing organosilicon oligomer is represented by the following formula (I) or (IV) of: ##STR1## wherein R, R.sub.1, R.sub.2, X and Y each are the same or different groups and stand for an alkyl, alkoxy or alkylcarbonyloxy group having 1 to 10 carbon atoms, n represents an integer of 1 to 3, m.sub.1 and m.sub.3 represent an integer of 1 to 10, m.sub.2 represents an integer of 0 to 10, m.sub.4 represents an integer of 1 to 5 and R.sub.F represents --CF.sub.2).sub.n.sbsb.1 A or ##STR2## where A stands for a hydrogen atom, a fluorine atom or a chlorine atom, n.sub.1 represents an integer of 1 to 10 and n.sub.2 represents an integer of 0 to 8. A surface treating agent contains the oligomer defined by the formula (I) or (IV).Type: GrantFiled: November 14, 1991Date of Patent: February 22, 1994Assignee: Nippon Oil and Fats Co. Ltd.Inventors: Hideo Sawada, Motohiro Mitani, Masaharu Nakayama, Takeo Matsumoto
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Patent number: 5270423Abstract: Organosilicon compounds with a siloxane portion and groups of the general formula --OR'OCH.dbd.CHR'' (i) linked via an Si--O--C bond, wherein R' is a divalent hydrocarbon radical or a group --R.degree.--(OR.degree.).sub.n --, wherein R.degree. is alkylene and n is from 1 to 12, R'' is H or alkyl are useful in radiation curable compositions, in which they are mixed with an initiator. The compositions are particularly useful in UV radiation curable relase coatings.Type: GrantFiled: November 13, 1992Date of Patent: December 14, 1993Assignee: Dow Corning LimitedInventors: Scott S. D. Brown, Peter C. Hupfield, Peter Y. K. Lo, Richard G. Taylor
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Patent number: 5233071Abstract: Alpha-fluorinated olefins are hydrosilated using selected cobalt compounds as catalysts. The products are useful in coatings, and as chemical intermediates, elastomers, and caulks.Type: GrantFiled: March 17, 1992Date of Patent: August 3, 1993Assignee: E. I. Du Pont de Nemours and CompanyInventor: Lech Wilczek
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Patent number: 5233067Abstract: A method for metallizing a polymeric substrate is disclosed. The method includes contacting a surface of an etched polymeric substrate with a silane coupling agent and depositing a metallic layer over the surface. The silane coupling agent forms a chemical linkage between the substrate and the metallic layer. A coupling agent composition and a metallized polymeric substrate are also described.Type: GrantFiled: May 8, 1990Date of Patent: August 3, 1993Assignee: Rogers CorporationInventors: Gwo Swei, Kenneth W. Kristal
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Patent number: 5223636Abstract: A partially alkoxylated polysiloxane is prepared by using a reactor kettle equipped with a reaction column and a reflux condenser, charging the kettle with a lower alkoxysilane where the kettle liquid is kept boiling, continuously feeding a halogenated lower alkylsilane into the kettle through the column top and continuously feeding a mixture of water and a monohydric alcohol into the kettle in controlled rates, completely alkoxylating the halogenosilane with the alcohol within the column to continuously yield an alkoxysilane, hydrolyzing the alkoxysilane, with the hydrogen halide by-produced during alkoxylation acting as a catalyst, and withdrawing a partially alkoxylated polysiloxane containing less than 5% by weight of the alcohol from the kettle.Type: GrantFiled: January 17, 1992Date of Patent: June 29, 1993Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Takeo Koshimura, Mikio Endo, Toshinobu Ishihara
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Patent number: 5183914Abstract: The present invention relates to a novel method of preparing alkoxysilanes and oligomeric alkoxysiloxanes. The method comprises reacting a metal silicate with an acid selected from the group consisting of sulfurous acid and acids with a pKa greater than about 2.5 in the presence of an alcohol. The resultant product is then reacted with an alcohol to form the alkoxysilane or oligomeric alkoxysiloxane, depending on the starting silicate. This method is particularly valuable since the reaction conditions are mild and the reactants are readily available.Type: GrantFiled: April 29, 1991Date of Patent: February 2, 1993Assignees: Dow Corning Corporation, Case Western Reserve UniversityInventors: Li-Tain Yeh, Malcolm E. Kenney, Gary N. Bokerman, John P. Cannady, Ollie W. Marko
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Patent number: 5166384Abstract: In a trimethoxysilane preparation from silicon metal and methanol which preparation uses a solvent, a method for removing a siloxane dissolved in the solvent, which method comprises contacting the solvent with a boron-oxygen compound, and optionally an alkali metal alkoxide such as sodium methoxide.Type: GrantFiled: April 7, 1992Date of Patent: November 24, 1992Assignee: Union Carbide Chemicals & Plastics Technology CorporationInventors: Donald L. Bailey, Thomas E. Childress, Robert L. Ocheltree, James S. Ritscher
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Patent number: 5158702Abstract: The present invention relates to compounds of the formula ##STR1## in which Z is a radical bonded to the benzene ring in the 2-, 3-, 5- or 6-position, namely 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 ](CH.sub.2).sub.y R""-- (9),in whichY is an integer from 4 to 18,R''' is as 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 radical of the formula --(E).sub.z -- which is optionally bonded to the carboxy group via a phenylene or biphenylene radical, whereE is a divalent radical of the formula --O-- or --Si(R*).sub.2 --, andZ is the number 0 or 1, and the radicalR' is a halogen atom, a cyano radical, a cholesteryl radical, a radical as defined for R* or of the formula --C.sub.6 H.sub.4 --R**, andR** may have any meaning of R*, with the exception of an n-octyloxy or an n-decyloxy radical,and the preparation and use thereof.Type: GrantFiled: June 22, 1990Date of Patent: October 27, 1992Assignee: Consortium fur Elektrochemische Industrie GmbHInventors: Wolfgang Haas, Norman Haberle, Rainer Winkler, Franz-Heinrich Kreuzer
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Patent number: 5153332Abstract: An organocyclosiloxane is disclosed which has both silicon-bonded alkoxy groups and organofunctional groups within each molecule. This cyclic siloxane finds utility as a coupling agent and has the general formula ##STR1## wherein R.sup.1 is independently selected from the group consisting of a monovalent hydrocarbon group having 1 to 8 carbon atoms and a monovalent halogen-substituted hydrocarbon group having 1 to 8 carbon atoms, R.sup.2 is selected from the group consisting of an alkoxy group and an alkoxysilylalkyl group, R.sup.3 is an organofunctional group selected from the group consisting of glycidoxyalkyl groups, methacryloxyalkyl groups, N-(trialkylsilyl)aminoalkyl groups, (hydroxyphenyl)alkyl groups, and haloalkyl groups and n and m each represent an integer having a value of 1 to 6 with the proviso that n+m is an integer with a value of 3 to 8.Type: GrantFiled: September 10, 1991Date of Patent: October 6, 1992Assignee: Dow Corning Toray Silicone Company, Ltd.Inventors: Hiroji Enami, Shoji Akamatsu
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Patent number: 5153293Abstract: An improved process is provided for the preparation of siloxane-oxyalkylene block copolymer surfactant compositions which utilize a hydrosilylation reaction with a monocarboxylate ester of an alkanediol as the reaction solvent. The reaction solvent need not be removed from the block copolymer, particularly when the block copolymer is used as a surfactant for polyurethane foam formulations. 2,2,4-trimethyl-1,3-pentanediol monoisobutyrate is the preferred reaction solvent.Type: GrantFiled: March 18, 1991Date of Patent: October 6, 1992Assignee: Dow Corning CorporationInventors: Michael G. Hales, William N. Fenton
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Patent number: 5128494Abstract: A method is provided for preparing preceramic polymers and silicious ceramic materials which derive therefrom. The preceramic polymers are polysiloxanes which are synthesized by catalytically activating Si-H bonds in a hydridosiloxane starting material and replacing the activated hydrogen atoms with non-hydrogen substituents. These preceramic polysiloxanes are pyrolyzed in a selected atmosphere to give the desired ceramic product. Ceramic products which may be prepared by this technique include silica, silicon oxynitride, silicon carbide, and metal silicates.Type: GrantFiled: April 21, 1989Date of Patent: July 7, 1992Assignee: SRI InternationalInventor: Yigal Blum
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Patent number: 5117029Abstract: Alkoxy-functional organopolysiloxanes can be prepared in high yields by reacting a hydroxy-containing organic silicon compound with an .alpha.-alkoxysilyl ester in the absence of a catalyst. The alkoxy-functional organopolysiloxanes are useful modifiers and surface treating agents a well as raw materials for silicone resins and rubbers.Type: GrantFiled: August 7, 1991Date of Patent: May 26, 1992Assignee: Shin-Etsu Chemical Co., Ltd.Inventor: Masatoshi Arai
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Patent number: 5113003Abstract: The silicon-containing phenoxy ethers are of the formula III: ##STR1## wherein R.sup.1 and R.sup.2 which may be the same or different are selected from H, --R.sup.3 --X, aliphatic hydrocarbyl having 1-6 carbon atoms or aryl, or substituted derivatives thereof, provided that not more than one of R.sup.1 and R.sup.2 is H;R.sup.3 is a divalent C.sub.1 -C.sub.30 aliphatic and/or aromatic hydrocarbyl group which may optionally be substituted, or interrupted, by a hetero atom;R.sup.4 and R.sup.5 which may be the same or different are H, ##STR2## or an ortho para directing activating group for aromatic electrophilic substitution, other than an amine;and X is a reactive functional group capable of undergoing an acid-catalyzed electrophilic aromatic substitution reaction with a phenol, for example an aldehyde group. They can be polymerized to produce silicone-modified polymers of the phenol-aldehyde type without the use of free aldehyde.Type: GrantFiled: March 20, 1991Date of Patent: May 12, 1992Assignee: Loctite (Ireland) LimitedInventors: John G. Woods, Pauline Coakley
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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