Material Contains A Heavy Metal Atom Patents (Class 528/19)
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Patent number: 9752013Abstract: The present invention relates to a tin-free composition comprising at least one silylated polymer and at least one tin-free polyhedral oligomeric metallo silsesquioxane. The present invention also relates to a process of curing a composition comprising a silylated polymer comprising the step of: contacting a silylated polymer with a tin-free polyhedral oligomeric metallo silsesquioxane.Type: GrantFiled: April 1, 2014Date of Patent: September 5, 2017Assignee: HUNTSMAN INTERNATIONAL LLCInventors: Christopher Phanopoulos, Servaas Holvoet, Fabrice Desesquelles, Alexander Rene Klein
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Patent number: 9233987Abstract: The present invention relates to a method for producing monosilane and tetraalkoxysilane comprising subjecting alkoxysilane represented by formula (1) HnSi(OR)4-n??(1) wherein R represents alkyl group having 1 to 6 carbon atoms and n represents an integer of from 1 to 3, to disproportionation reaction in a gaseous phase in the presence of an inorganic phosphate or a catalyst having a specific chemical structure based on a heteropolyacid salt structure. In the production method of the present invention, separation from the solvent can be carried out easily, the reaction proceeds quickly and the conversion rate of the starting materials is high.Type: GrantFiled: April 29, 2015Date of Patent: January 12, 2016Assignee: SHOWA DENKO K.K.Inventors: Hiromoto Ohno, Toshio Ohi, Haruaki Ito, Fanil Makhmutov
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Patent number: 9181402Abstract: A process is disclosed for preparing a resin-linear organosiloxane block copolymer. The resin-linear organosiloxanes block copolymers prepared by the disclosed process may provide optically solid compositions which may be considered as “reprocessable”.Type: GrantFiled: March 12, 2013Date of Patent: November 10, 2015Assignee: Dow Corning CorporationInventors: John Bernard Horstman, Steven Swier, Sheng Wang
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Patent number: 9175140Abstract: Curable compositions of “resin-linear” organosiloxane block copolymers comprising a metal ligand complex are disclosed. The addition of a metal ligand complex to compositions of certain resin-linear organosiloxane block copolymers results in curable compositions having faster cure rates, and improved mechanical strength and/or thermal stability over similar compositions without the metal ligand complex.Type: GrantFiled: March 14, 2013Date of Patent: November 3, 2015Assignee: Dow Corning CorporationInventor: Steven Swier
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Patent number: 9076934Abstract: A process is disclosed for preparing a resin-linear organosiloxane block copolymer by reacting a linear organosiloxane and an organosiloxane resin to form a resin-linear organosiloxane block copolymer. The resulting resin-linear organosiloxane block copolymer is then crosslinked to increase the average molecular weight of the resin-linear organosiloxane block copolymer. The resin-linear organosiloxanes block copolymers prepared by the disclosed process may provide solid, optically clear compositions which may be considered as “reprocessable.Type: GrantFiled: March 12, 2013Date of Patent: July 7, 2015Assignee: Dow Corning CorporationInventors: John Bernard Horstman, Steven Swier
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Patent number: 8937141Abstract: The present invention provides curable compositions comprising non-Sn organo-metal catalysts that accelerate the condensation curing of moisture curable silicones/non-silicones. In particular, the present invention provides Mn(III) complexes that are particularly suitable as replacements for organotin for sealant and RTV formulations. The Mn(III) complexes are comparable or superior to organotin such as DBTDL, superior to Mn(II) compounds, and exhibit certain behavior in the presence of components that allow for tuning or adjusting the cure characteristics of the present compositions and provide good adhesion and storage stability.Type: GrantFiled: September 8, 2011Date of Patent: January 20, 2015Assignee: Momentive Performance Materials Inc.Inventors: Sumi, Edward J. Nesakumar, Anantharaman Dhanabalan, Shahid Murtuza, Shayne J. Landon
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Publication number: 20150011722Abstract: Embodiments of the invention provide for methods of producing a composition comprising a crosslinkable silane-terminated polymer having at least one crosslinkable silyl group in each molecule. The method comprises providing a polymer having at least one unsaturated group and at least one alcoholic hydroxyl group in each molecule, adding to the polymer a compound having a hydrogen-silicon bond and a crosslinkable silyl group in each molecule and a hydrosilylation catalyst to thereby carry out a hydrosilylation reaction to form a composition comprising hydrosilylated polyoxyalkylene polymers, reacting the hydrosilylated polyoxyalkylene polymers with at least one isocyanate in the presence of a first tin-free catalyst to form an isocyanate reacted hydrosilylated polymer, and optionally reacting the isocyanate reacted hydrosilylated polymer with a polyol having a nominal functionality of at least 2 to form a polyol reacted crosslinkable silane-terminated polymer.Type: ApplicationFiled: September 25, 2014Publication date: January 8, 2015Inventors: Kamesh R. Vyakaranam, Ling Zhang, William A. Koonce, Juan Carlos Medina, Ganesh Kailasam, Rajat Duggal, Nathan Wilmot
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Patent number: 8921437Abstract: Prepolymers having more than one alkoxysilyl function per chain end reactive towards epoxide groups as a constituent of curable compositions, and their use for producing adhesive-bonding and coating compositions, which may also be foamable, and also polymeric materials produced therefrom.Type: GrantFiled: September 17, 2009Date of Patent: December 30, 2014Assignee: Evonik Goldschmidt GmbHInventors: Wilfried Knott, Frank Schubert, Martin Glos, Carsten Schiller, Matthias Naumann
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Patent number: 8921505Abstract: The present invention relates to a method for preparing poly(organic oxidized silicon) particles having UV-absorbing groups, including reacting an organoalkoxysilane precursor having a UV-absorbing group selected from a group consisting of organotrialkoxysilane, diorganoalkoxysilane and a mixture thereof, in the presence of a base, with a silane compound selected from a group consisting of tetraalkoxysilane, alkyltrialkoxysilane, tetraalkoxysilane, aryltrialkoxysilane, dialkyldialkoxysilane, diaryldialkoxysilane, arylalkyldialkoxysilane and a mixture thereof, serving as a crosslinking regulator and UV stability enhancer, so as to prepare poly(organic oxidized silicon) particles selected from a group consisting of polysilsesquioxane, silsesquioxane-siloxane copolymer, silsesquioxane-silica copolymer, silsesquioxane-siloxane-silica copolymer and silsesquioxane-siloxane copolymer, having UV-absorbing groups.Type: GrantFiled: July 15, 2011Date of Patent: December 30, 2014Assignee: Nano and Micro Technologies Co., Ltd.Inventors: Young Baek Kim, Goo Jin Jeong, In Whan Kim
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Patent number: 8900654Abstract: Compositions and methods for controlled polymerization and/or oligomerization of silane (and optionally cyclosilane) compounds, including those of the general formulae SinH2n and SinH2n+2, as well as halosilanes and arylsilanes, to produce soluble polysilanes, polygermanes and/or polysilagermanes having low levels of carbon and metal contaminants, high molecular weights, low volatility, high purity, high solubility and/or high viscosity. The polysilanes, polygermanes and/or polysilagermanes are useful as a precursor to silicon- and/or germanium-containing conductor, semiconductor and dielectric films.Type: GrantFiled: July 29, 2011Date of Patent: December 2, 2014Assignee: Thin Film Electronics, Inc.Inventors: Klaus Kunze, Gregory Nyce, Wenzhuo Guo
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Publication number: 20140329267Abstract: It is provided a self-healing polymer network comprising transition metal thiolates, particularly thiolates of a transition metal that is able to self-assemble by metallophilic attractions, and more particularly Au(1), Ag(1), Cu(1) thiolates, or a mixture thereof, and, optionally, disulfide bonds, thiol and other thiolate groups. It is also provided several processes for the preparation of the self-healing polymer networks of the invention, as well as uses thereof.Type: ApplicationFiled: November 27, 2012Publication date: November 6, 2014Inventors: Ibón Odriozola, Pablo Casuso, Natividad Díaz, Iraida Loinaz, Germán Cabañero, Hans-jürgen Grande
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Publication number: 20140316059Abstract: The present invention provides curable compositions comprising non-Sn organo-metal catalysts that accelerate the condensation curing of moisture curable silicones/non-silicones. In particular, the present invention provides La(III) complexes that are particularly suitable as replacements for organotin for sealant and RTV formulations. The La(III) complexes are comparable to organotin such as DBTDL and exhibit certain behavior in the presence of components that allow for tuning or adjusting the cure characteristics of the present compositions and provide good adhesion and storage stability.Type: ApplicationFiled: December 7, 2012Publication date: October 23, 2014Inventors: Sumi Dinkar, Anantharaman Dhanabalan
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Patent number: 8859709Abstract: A mixture of at least two polyhedral oligomeric silsesquioxane (POSS) compounds is formed in the presence of rhenium on cerium(IV) oxide. The POSS compounds are formed utilizing a method that includes the step of combining (a) a trihalosilane, (b) hydrogen gas, and (c) the rhenium on cerium(IV) oxide, in a reactor at a temperature of from 250° C. to 600° C. to form the mixture. The trihalosilane has the formula RSiX3 wherein R is an alkyl group having from 1 to 4 carbon atoms, an aryl group, and wherein X is a halo atom. This method allows for the efficient, predictable, and accurate production of the POSS compounds with a minimized need for use of expensive separation techniques. In addition, this method produces the POSS compounds in commercially useful quantities as major reaction products thereby avoiding the need to run multiple reactions.Type: GrantFiled: December 22, 2011Date of Patent: October 14, 2014Assignee: Dow Corning CorporationInventors: Dimitris Katsoulis, Robert Thomas Larsen
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Patent number: 8852844Abstract: There is disclosed a thermosetting composition for forming a silicon-containing film to form a silicon-containing film formed in a multilayer resist process used in lithography, including at least (A) a silicon-containing compound obtained by hydrolyzing and condensing a hydrolyzable silicon compound using an acid as a catalyst, (B) a thermal crosslinking accelerator (C) a monovalent or bivalent or more organic acid having 1 to 30 carbon atoms, (D) trivalent or more alcohol and (E) an organic solvent. There can be provided a composition for a silicon-containing film which can form a good pattern in a photoresist film, can form a silicon-containing film for an etching mask having a good dry etching resistance, can give a good storage stability and can be delaminated with a solution used in a delamination process in a multilayer resist process used for lithography, a substrate on which the silicon-containing film is formed, and further a method for forming a pattern.Type: GrantFiled: August 10, 2009Date of Patent: October 7, 2014Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Tsutomu Ogihara, Takafumi Ueda, Toshiharu Yano
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Publication number: 20140288259Abstract: The present invention relates to a surface-modified ultraviolet blocking powder obtained by reacting an ultraviolet blocking powder including a chloroacetyl group, a phospholipid monomer including an unsaturated bonding, and a catalyst inducing the reaction of the chloroacetyl group and the unsaturated bonding. According to the surface-modified ultraviolet blocking powder of the present invention, the surface may be modified using an effective method, and through chemical bonding (covalent bonding) and as a result of surface modification, the stability of the powder is high. In addition, since the surface modification is performed by using a biocompatible component, the ultraviolet blocking composition including the surface-modified ultraviolet blocking powder may provide ultraviolet blocking properties and biocompatibility at the same time.Type: ApplicationFiled: May 30, 2014Publication date: September 25, 2014Applicant: KCI CO., LTD.Inventors: Won Woo YU, Jung Ho PARK
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Publication number: 20140221593Abstract: A composition is capable of curing via condensation reaction. The composition uses a new condensation reaction catalyst. The new condensation reaction catalyst is used to replace conventional tin catalysts. The composition can react to form a gum, gel, rubber, or resin.Type: ApplicationFiled: July 19, 2012Publication date: August 7, 2014Applicant: Dow Corning CorporationInventors: Kurt Bradstadt, Simon Cook, Gary Diamond, Keith Hall, Loren Lower, Avril Surgenor, Richard Taylor, James Tonge
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Publication number: 20140171547Abstract: A composition is capable of curing via condensation reaction. The composition uses a new condensation reaction catalyst. The new condensation reaction catalyst is used to replace conventional tin catalysts. The composition can react to form a gum, gel, rubber, or resin.Type: ApplicationFiled: August 16, 2012Publication date: June 19, 2014Inventors: Kurt Brandstadt, Simon Cook, Gary Diamond, Keith Hall, Loren Lower, Avril Surgenor, Richard Taylor, James Tonge, Ming-Shin Tzou
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Publication number: 20140107309Abstract: One object of the present invention is to provide a method for preparing a polyorganosiloxane without using any catalyst having corrosivity and toxicity such as an alkaline earth metal catalyst in a condensation reaction of at least one organic silicon compound having a silanol group and/or an alkoxy silyl group. The present invention is a method for preparing a polyorganosiloxane, wherein the method includes a step of condensation reacting at least one organic silicon compound having at least one —OX group bonding to a silicon atom in the molecule, wherein X is a hydrogen atom, an alkyl group having 1 to 10 carbon atoms or an alkoxyalkyl group having 2 to 10 carbon atoms, in the presence of a catalyst, wherein the catalyst is at least one selected from the group having hydroxides or oxides of elements in Groups 3-15 of the periodic table.Type: ApplicationFiled: October 3, 2013Publication date: April 17, 2014Applicant: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Takayuki KUSUNOKI, Yuusuke TAKAMIZAWA, Tsutomu KASHIWAGI
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Patent number: 8669583Abstract: A heat-curable silicone resin composition for sealing optical semiconductors including: component (A): 100 parts by mass of a silicon compound expressed by Formula (1) below; and component (B): from 0.001 to 10 parts by mass of a condensation catalyst. (R1SiO3/2)a((R2)2SiO2/2)b((R3)3SiO1/2)c(SiO4/2)d(XO1/2)e??(1) In this formula, R1, R2, and R3 are identical or differing monovalent organic groups, “X” is a hydrogen atom or a monovalent organic group, “a” is a positive number, “b” is 0 or a positive number, “c” is 0 or a positive number, “d” is 0 or a positive number, and “e” is 0 or a positive number; however “a” to “e” satisfy the following conditions: b/a is a number from 0 to 10, c/a is a number from 0 to 0.5, d/(a+b+c+d) is a number from 0 to 0.3, and e/(a+b+c+d) is a number from 0.01 to 1.5.Type: GrantFiled: February 22, 2012Date of Patent: March 11, 2014Assignee: The Yokohama Rubber Co., Ltd.Inventors: Takeaki Saiki, Yoshihito Takei
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Patent number: 8623985Abstract: A silicone composition is described that includes components having SiH/SiOH groupings and that can be polymerized/cross-linked by a dehydrogenative condensation reaction in the presence of a zinc catalyst and requiring a low activation temperature.Type: GrantFiled: June 15, 2010Date of Patent: January 7, 2014Assignee: Bluestar Silicones France SASInventor: Christian Maliverney
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Patent number: 8603588Abstract: Disclosed is a composition comprising a hydrolysate of an alkoxysilane compound, a hydrolysate of a siloxane compound represented by Formula (1), a surfactant, and an element having an electronegativity of 2.5 or less. In Formula (1), RA and RB independently represent a hydrogen atom, a phenyl group, —CaH2a+1, —(CH2)b(CF2)cCF3 or —CdH2d?1, RA and RB are not both hydrogen atoms simultaneously, RC and RD independently represent a single bond that links a silicon atom and an oxygen atom to form a cyclic siloxane structure, or each independently represent a hydrogen atom, a phenyl group, —CaH2a+1, —(CH2)b(CF2)cCF3, or —CdH2d?1, a represents an integer of 1 to 6, b represents an integer of 0 to 4, c represents an integer of 0 to 10, d represents an integer of 2 to 4, and n represents an integer of 3 or greater.Type: GrantFiled: March 30, 2009Date of Patent: December 10, 2013Assignee: Mitsui Chemicals, Inc.Inventors: Kazuo Kohmura, Hirofumi Tanaka
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Patent number: 8470900Abstract: The present invention relates to a porous polymer and a synthetic method thereof. The porous polymer has the following general formula: wherein, the positions marked with the numeral 1-10 are C, CH, N, or CH with its H being substituted by methyl, ethyl, amido, carboxyl, methoxyl, hydroxyl, or ester group; the positions marked with letter a or b are C, N+, or B?.Type: GrantFiled: October 15, 2012Date of Patent: June 25, 2013Assignee: Shen Zhen Poremat Technology Co. Ltd.Inventors: Shilun Qiu, Guangshan Zhu, Teng Ben
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Patent number: 8377634Abstract: This invention relates to acrylic functional resin compositions. More particularly, this invention relates to Poly [organ-co-(meth)acryloxyorgano]silsequioxane resins that are curable upon exposure to ultraviolet radiation with photo initiator or upon heating with or without a free radical generator. The resin compositions have high storage stability at room temperature and produces films that are useful as planarization layer, interlayer dielectric, passivation layer, gas permeable layer, negative photoresist, antireflective coating, conformal coating and IC packaging.Type: GrantFiled: June 3, 2005Date of Patent: February 19, 2013Assignee: Dow Corning CorporationInventors: John Dean Albaugh, Gregory Scott Becker, Sina Maghsoodi, Eric Scott Moyer, Sheng Wang, Craig Rollin Yeakle
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Publication number: 20130005882Abstract: An odorless curable composition containing a hydrolyzable silyl group-containing urethane compound with good storage stability is provided. A curable composition comprising 100 parts by mass of a polymer (P) obtained by a urethane-forming reaction of a polymer (pP) having a polyoxyalkylene chain and hydroxyl groups and a compound (U) represented by the following formula (I): Si(X1)m(R1)3-m-Q-NCO ??(I) (wherein Q is a C2-20 bivalent linear hydrocarbon group, X1 is a C1-6 alkoxy group, R1 is a C1-6 alkyl group, and m is an integer of from 1 to 3) in the presence of a urethane-forming catalyst and from 0.0001 to 0.1 part by mass of an inorganic acid or an organic acid having an active hydrogen bonded to an oxygen atom.Type: ApplicationFiled: September 12, 2012Publication date: January 3, 2013Applicant: Asahi Glass Company, LimitedInventors: Yoshitaka SUNAYAMA, Yuki HATANAKA, Hideaki TANAKA
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Patent number: 8309664Abstract: Process for the preferential alkoxylation of silicone-polyether copolymers either alone or in compositions thereof containing, for example, excess polyether by use of double metal cyanide catalysts.Type: GrantFiled: October 26, 2009Date of Patent: November 13, 2012Assignee: Evonik Goldschmidt GmbHInventors: Wilfried Knott, Frank Schubert, Frauke Henning
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RTV-organopolysiloxane compositions and novel organopolysiloxane polycondensation catalysts therefor
Patent number: 8278407Abstract: RTV-organopolysiloxane compositions are crosslinkable by polycondensation and are devoid of alkyltin-based catalysts; novel organopolysiloxane polycondensation catalysts are useful therefor.Type: GrantFiled: November 18, 2008Date of Patent: October 2, 2012Assignee: Bluestar Silicones France SASInventors: Christian Maliverney, Delphine Blanc, Rachid Ferhat -
Patent number: 8258332Abstract: A method for preparing a functionalized polymer, the method comprising the steps of preparing a reactive polymer, and reacting the reactive polymer with a halosilane compound containing an amino group.Type: GrantFiled: June 18, 2008Date of Patent: September 4, 2012Assignee: Bridgestone CorporationInventors: Terrence E. Hogan, Steven Luo, Yoichi Ozawa, Junko Matsushita, Ryuji Nakagawa, Eiju Suzuki, Ken Tanaka
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Publication number: 20120211797Abstract: A heat-curable silicone resin composition for sealing optical semiconductors including: component (A): 100 parts by mass of a silicon compound expressed by Formula (1) below; and component (B): from 0.001 to 10 parts by mass of a condensation catalyst. (R1SiO3/2)a((R2)2SiO2/2)b((R3)3SiO1/2)c(SiO4/2)d(XO1/2)e??(1) In this formula, R1, R2, and R3 are identical or differing monovalent organic groups, “X” is a hydrogen atom or a monovalent organic group, “a” is a positive number, “b” is 0 or a positive number, “c” is 0 or a positive number, “d” is 0 or a positive number, and “e” is 0 or a positive number; however “a” to “e” satisfy the following conditions: b/a is a number from 0 to 10, c/a is a number from 0 to 0.5, d/(a+b+c+d) is a number from 0 to 0.3, and e/(a+b+c+d) is a number from 0.01 to 1.5.Type: ApplicationFiled: February 22, 2012Publication date: August 23, 2012Applicant: The Yokohama Rubber Co., LTD.Inventors: Takeaki Saiki, Yoshihito Takei
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Patent number: 8242226Abstract: The present invention relates to an organopolysiloxane composition that can be vulcanized at room temperature into an elastomer that is crosslinked by polycondensation and that does not contain alkyltin-based catalysts and also to novel organopolysiloxane polycondensation catalysts.Type: GrantFiled: November 18, 2008Date of Patent: August 14, 2012Assignee: Bluestar Silicones France S.A.S.Inventors: Christian Maliverney, Laurent Saint-Jalmes
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Patent number: 8236915Abstract: Disclosed herein are manganese, iron, cobalt, or nickel complexes containing terdentate pyridine diimine ligands and their use as efficient and selective hydrosilylation catalysts.Type: GrantFiled: July 8, 2010Date of Patent: August 7, 2012Assignees: Momentive Performance Materials Inc., Cornell UniversityInventors: Johannes G. P. Delis, Susan A. Nye, Kenrick M. Lewis, Keith J. Weller, Paul J. Chirik, Aaron M. Tondreau, Sarah Kathleen Russell
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Patent number: 8232362Abstract: The present invention relates to a process for preparing silylated isocyanato-terminated polyurethane prepolymer which have increased stability toward atmospheric moisture, in the presence of at least one catalyst selected from the group consisting of bismuth and zinc compounds.Type: GrantFiled: September 15, 2005Date of Patent: July 31, 2012Assignee: Momentive Performance Materials Inc.Inventors: Yurun Yang, Misty Huang
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Publication number: 20120165421Abstract: A silicone composition is described that includes components having SiH/SiOH groupings and that can be polymerized/cross-linked by a dehydrogenative condensation reaction in the presence of a zinc catalyst and requiring a low activation temperature.Type: ApplicationFiled: June 15, 2010Publication date: June 28, 2012Applicant: BLUESTAR SILICONES FRANCEInventor: Christian Maliverney
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Patent number: 8183335Abstract: The present invention relates to an organopolysiloxane composition that can be vulcanized at room temperature into an elastomer that is crosslinked by polycondensation and that does not contain alkyltin-based catalysts and also to novel organopolysiloxane polycondensation catalysts.Type: GrantFiled: December 18, 2008Date of Patent: May 22, 2012Assignee: Bluestar Silicones France SASInventors: Christian Maliverney, Laurent Saint-Jalmes
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Patent number: 8143359Abstract: The purpose of the present invention is to provide an organic silicon compound which has a vinyl group more reactive than those of the conventional organic silicon compounds and can be bonded with another compound. The present organic silicon compound is represented by the following formula (1), wherein R1 is, independently of each other, a vinyl group or an alkyl group having 1 to 4 carbon atoms, R2 is an alkylene group having 3 to 6 carbon atoms, and R3 is, independently of each other, a hydrogen atom or an alkyl group having 1 to 4 carbon atoms and optionally substituted with one or more fluorine atoms.Type: GrantFiled: November 18, 2009Date of Patent: March 27, 2012Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Noriyuki Koike, Takashi Matsuda, Hirofumi Kishita
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Publication number: 20120010302Abstract: The invention relates to new types of polyester-polysiloxane block copolymers, to processes for their preparation and to their use.Type: ApplicationFiled: July 7, 2011Publication date: January 12, 2012Applicant: Evonik Goldschmidt GmbHInventors: Christian HARTUNG, Michael Ferenz, Wilfried Knott, Helmut Ritter, Michael Fiedel
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Publication number: 20110301254Abstract: The invention provides a process for preparing organically modified siloxanes by catalysed reaction of siloxanes having at least one SiH group with a compound having a double bond.Type: ApplicationFiled: June 6, 2011Publication date: December 8, 2011Applicant: Evonik Goldschmidt GmbHInventors: Wilfried Knott, Klaus-Dieter Klein
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Patent number: 8058351Abstract: A process for producing low molecular weight polymers, the process comprising partially hydrogenating an unsaturated polymer to form a partially hydrogenated polymer, and reacting the partially hydrogenated polymer with an acyclic alkene in the presence of a metathesis catalyst.Type: GrantFiled: May 19, 2006Date of Patent: November 15, 2011Assignee: Bridgestone CorporationInventors: James Pawlow, James Hall, Jason Poulton
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Patent number: 8039570Abstract: A solvent-free silicone composition for release paper, comprising a mixture prepared by i) subjecting the organopolysiloxane (I) which is composed of R13SiO1/2 units, SiO4/2 units and (HO)SiO3/2 units, and has an OH group content of from 0.02 to 0.1 mol/100 g, to a partial condensation reaction in an organic solvent in the presence of an alkaline catalyst and the organopolysiloxane (II) represented by the following formula (2), and ii) removing the organic solvent, said mixture having an OH group content of less than 0.02 mol/100 g. The composition forms a tight-release layer stable with time.Type: GrantFiled: October 13, 2006Date of Patent: October 18, 2011Assignee: Shin-Etsu Chemical Co., Ltd.Inventor: Shinji Irifune
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Publication number: 20110028640Abstract: The invention relates to a method for producing cross-linkable formulations. In a first step of the method, at least one ?,?-difunctional organic polymer of formula (1) X-A-X (1) is converted into organyloxysilyl-terminated polymers P1, using organofunctional silanes of formula (2) Y—R—Si—(R1)m(—OR2)3m (2), in the presence of catalysts (A) selected from the group consisting of potassium, iron, indium, zinc, bismuth and copper compounds.Type: ApplicationFiled: October 18, 2010Publication date: February 3, 2011Applicant: Henkel AG & Co. KGaAInventors: Johann Klein, Sara Gonzalez, Lars Zander, Christiane Kunze, Thomas Bachon, Andreas Bolte, Martin Majolo, Thomas Tamcke
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RTV-ORGANOPOLYSILOXANE COMPOSITIONS AND NOVEL ORGANOPOLYSILOXANE POLYCONDENSATION CATALYSTS THEREFOR
Publication number: 20110021684Abstract: RTV-organopolysiloxane compositions are crosslinkable by polycondensation and are devoid of alkyltin-based catalysts; novel organopolysiloxane polycondensation catalysts are useful therefor.Type: ApplicationFiled: December 18, 2008Publication date: January 27, 2011Inventors: Christian Maliverney, Delphine Blanc, Rachid Ferhat -
Publication number: 20100317818Abstract: A method for preparing a functionalized polymer, the method comprising the steps of preparing a reactive polymer, and reacting the reactive polymer with a halosilane compound containing an amino group.Type: ApplicationFiled: June 18, 2008Publication date: December 16, 2010Inventors: Terrence Hogan, Steven Luo, Yoichi Ozawa, Junko Matsushita, Ryuji Nakagawa, Ken Tanaka, Eiju Susuki
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Patent number: 7838613Abstract: The invention relates to polyorganosiloxane monocomponent compounds (POS) which are stable when stored without humidity and crosslinking into elastomer in the presence of water. The inventive compounds comprise at least one type of crosslinkable linear polyorganosiloxane (POS), a mineral filler and a crosslinking catalyst of formula (I) which provides said compound with an excellent compromise between cross linking kinetics and a storage stability (i.e. more than 6 months).Type: GrantFiled: December 21, 2004Date of Patent: November 23, 2010Assignee: Rhodia ChimieInventors: Marc Chaussade, Nathalie Guennouni
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Patent number: 7825206Abstract: The invention provides a process for preparing SiOC-bonded polyorganosiloxanes by reacting, by processes known per se, hydroxyl-containing compounds with a stoichiometric excess of polyorganosiloxanes which contain —Si(H) units and are of the general formula (I) in the presence of one or more element compounds of main group III and/or of transition group 3 as a catalyst, wherein the reaction, on completion of conversion of the compounds containing hydroxyl groups, is continued until no further ?Si—H groups are detectable by gas volumetric means, and also the compounds prepared in this way and their use.Type: GrantFiled: December 14, 2007Date of Patent: November 2, 2010Assignee: Evonik Goldschmidt GmbHInventors: Thomas Neumann, Wilfried Knott
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Patent number: 7825205Abstract: The invention relates to a process for the preparation of SiOC-linked, linear polydimethylsiloxane-polyoxyalkylene block copolymers having (AB) repeat units, via reaction by methods known per se of polyetherdiols with a stoichiometric excess of ?,?-dihydropolydimethylsiloxanes, in the presence of one or more compounds of elements of main group 13 and/or of transition group 3 as catalyst, which comprises, after completed reaction of the alcohol component, continuing the reaction until no remaining ?Si(H) groups are detectable by a gas-volumetric method, and also to the compounds thus prepared, and to their use as surfactant additives for the production of polyurethane ether foams.Type: GrantFiled: December 14, 2007Date of Patent: November 2, 2010Assignee: Evonik Goldschmidt GmbHInventors: Wilfried Knott, Juergen Droese, Klaus Dieter Klein, Rüdiger Landers, Dagmar Windbiel
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Patent number: 7790813Abstract: The present invention relates to a series of crosslinked silicone polymers that by virtue of the nature of the dimol alcohol undecylenic acid ester based crosslinker, have unique solubility and properties. These include improved tolerance for oily materials and improved skin feel. These polymers find use in personal care applications like pigmented products. In the personal care arena, solid products that do not experience syneresis are important. Syneresis is a condition that exists in a solid product that causes a liquid that is incompatible to ooze out, which is cosmetically unacceptable.Type: GrantFiled: July 29, 2008Date of Patent: September 7, 2010Assignee: Siltech LLCInventors: Kevin Anthony O'Lenick, Anthony J. O'Lenick, Jr.
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Patent number: 7750106Abstract: Compositions and methods for the in situ formation of hydrosilylation (addition) cross-linked organosiloxane films are disclosed. The disclosed films are long-lasting, flexible, transfer-resistant, and water-proof. The film-forming compositions generally comprise alkoxy-terminated organosiloxane polymers and a catalyst and are useful for formulating cosmetics and personal care products.Type: GrantFiled: December 21, 2005Date of Patent: July 6, 2010Assignee: Avon Products, Inc.Inventors: Tao Zheng, Derrick B. McKie, John C. Brahms, Prithwiraj Maitra
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Patent number: 7723443Abstract: The present invention relates to a series of crosslinked silicone polymers that by virtue of the nature of the crosslinking undecylenic acid ester based crosslinker, have unique solubility and properties. These include improved tolerance for oily materials and improved skin feel. These polymers find use in personal care applications like pigmented products. In the personal care arena, solid products that do not experience syneresis are important. Syneresis is a condition that exists in a solid product that causes a liquid that is incompatible to ooze out, which is cosmetically unacceptable.Type: GrantFiled: July 29, 2008Date of Patent: May 25, 2010Assignee: Siltech LLCInventors: Kevin Anthony O'Lenick, Anthony J. O'Lenick, Jr.
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Publication number: 20100041852Abstract: The present invention relates to the in situ silyl end group functionalization of polymer chains which have been prepared by means of atom transfer radical polymerization and the simultaneous removal of transition metals from polymer solutions.Type: ApplicationFiled: June 26, 2007Publication date: February 18, 2010Applicant: Evonik Roehm GmbHInventors: Sven Balk, Gerd Loehden
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Publication number: 20100025724Abstract: Disclosed is a resin composition for LED encapsulation including an organic oligosiloxane hybrid prepared by non-hydrolytic condensation of organoalkoxysilane. More particularly, the resin composition for LED encapsulation includes an organic oligosiloxane hybrid prepared by non-hydrolytic condensation of organoalkoxysilane with organosilanediol or non-hydrolytic condensation of a mixture containing organoalkoxysilane and metal alkoxide with organosilanediol. The prepared organic oligosilane hybrid has an inorganic network structure with a high degree of condensation and contains at least one organic group or organic functional group. In addition, an encapsulated LED fabricated using the above resin composition for LED encapsulation is provided.Type: ApplicationFiled: May 8, 2009Publication date: February 4, 2010Inventors: Byeong-Soo Bae, Seung-Cheol Yang
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Publication number: 20100029888Abstract: Multicomponent silicone compositions which can be crosslinked via the click reaction and which, after mixing of the individual components, harden to give an elastomeric material contain: at least one compound (A) or (B), at least one compound (B) or (C), and at least one Cu catalyst (D), where (A) is an organic compound or an organosilicon compound which possesses at least two moieties having terminal aliphatic carbon-carbon triple bonds having terminally bonded hydrogen; (B) is an organic compound or an organosilicon compound which possesses at least two moieties having terminal aliphatic carbon-carbon triple bonds having terminally bonded hydrogen and simultaneously at least two moieties having carbon-bonded azide groups; (C) is an organic compound or an organosilicon compound which possesses at least two moieties having carbon-bonded azide groups.Type: ApplicationFiled: July 28, 2009Publication date: February 4, 2010Applicant: WACKER CHEMIE AGInventors: Stefan Ritter, Friedrich Sieglhuber