Patents Represented by Attorney, Agent or Law Firm Kenneth S. Wheelock
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Patent number: 7902314Abstract: Disclosed herein is a composition comprising a structure (M1)a(ME)b(D1)c(D2)d(T)e(Q)f, wherein M1=R1R2R3SiO1/2; ME=R4R5RESiO1/2; D1=R6R7SiO2/2; D2=R8R9SiO2/2; T=R10SiO3/2; and Q=SiO4/2; wherein each RE is independently a monovalent hydrocarbon radical containing an epoxy group; R9 comprises a structure -L1-Si(R11)g(OR12)3-g or L2(D3)h(M2)i-L3-Si(R13)g?(OR14)3-g?, wherein L1, L2, and L3 are independently divalent linking groups; g and g? independently have a value from 0 to 2; M2=R15R16R17SiO1/2; D3=R18R19SiO2/2; wherein R1, R2, R3, R4, R5, R6, R7, R8, R10, R11, R12, R13, R14, R15, R16, R17, R18, and R19 are independently monovalent hydrocarbon radicals; wherein a, b, c, d, e, f, h, and i are stoichiometric subscripts that are zero or positive subject to the following limitations: b has a value of 2; d is greater than or equal to 1; when (a+c+e+f) is equal to zero, (b+d) is greater than or equal to 3; and when i=0, h is at least 1.Type: GrantFiled: March 5, 2010Date of Patent: March 8, 2011Assignee: Momentive Performance Materials Inc.Inventors: Joseph Edward Nesakumar, Ganesh Kannan, Vikram Kumar, Hariharan Ramalingam, Mark D. Leatherman, Suresh K. Rajaraman
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Patent number: 7851581Abstract: A film forming composition with spreading properties derived from an aqueous emulsion comprising (I) colloidal silica core/silicone shell particles consisting of (a) 90 wt % to 10 wt % cores of colloidal silica and (b) 10 wt % to 90 wt % shells of polyorganosiloxane; (II) a polyalkyleneoxide modified trisiloxane; (III) an emulsifier package consisting of at least one anionic surfactant, and (IV) the salt of an acidic polymerization catalyst. The composition may include optional ingredients useful in Personal Care, Hair Care, Skin Care, Agricultural, and Home Care applications.Type: GrantFiled: August 17, 2007Date of Patent: December 14, 2010Assignee: Momentive Performance Materials Inc.Inventors: Anna M. Czech, Benjamin Falk, John Nicholson, George A. Policello, Jo Anne Tully
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Patent number: 7833541Abstract: The cosmetic compositions of the present invention comprise silicone copolymers, terpolymers and higher order polymers that comprise 1) polyether substituted structural units and 2) epoxy or oxirane structural units that are reacted with acrylate species to produce cross linked silicones comprising polyether substituted structural units and acrylate cross links. The cross linked polymers of the present invention are self-emulsifying and may be either water swellable or oil swellable.Type: GrantFiled: April 30, 2007Date of Patent: November 16, 2010Assignee: Momentive Performance Materials Inc.Inventors: Ning Lu, Anna Maria Czech, Pat Hoontrakul, John Nicholson, Roy Rojas-Wahl
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Patent number: 7687574Abstract: The compositions of the present invention comprise silicone copolymers, terpolymers and higher order polymers that comprise 1) polyether substituted structural units and 2) epoxy or oxirane structural units that are reacted with acrylate species to produce cross linked silicones comprising polyether substituted structural units and acrylate cross links. The cross linked polymers of the present invention are self-emulsifying and may be either water swellable or oil swellable.Type: GrantFiled: April 30, 2007Date of Patent: March 30, 2010Assignee: Momentive Performance Materials Inc.Inventors: Ning Lu, Anna Maria Czech, Pat Hoontrakul, John Nicholson, Roy Rojas-Wahl
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Patent number: 7601680Abstract: A composition having a first hydrophobic moiety linked to a spacer, which is linked to a second hydrophobic moiety to form a Gemini surfactant is provided. Each hydrophobic moiety of the foregoing composition may include silicon. A method for linking a first hydrophobic moiety to a second hydrophobic moiety using a spacer to form a Gemini surfactant is provided. A pesticide having an active ingredient and a composition having a first hydrophobic moiety linked to a spacer, which is linked to a second hydrophobic moiety to form a Gemini surfactant is also provided.Type: GrantFiled: December 13, 2005Date of Patent: October 13, 2009Assignee: Momentive Performance MaterialsInventors: Dong Wang, Wenqing Peng
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Patent number: 7579495Abstract: Cyclic siloxanes that contain releasable active ingredients are described. The active ingredient can be an alcohol or enolizable carbonyl-containing compound such as a ketone, aldehyde, or ester. The product siloxanes are useful in a variety of personal and household care products where slow or controlled release of active ingredient is desired. A preferred embodiment utilizes substituents that when released as active ingredients are fragrant.Type: GrantFiled: December 19, 2003Date of Patent: August 25, 2009Assignee: Momentive Performance Materials Inc.Inventors: Robert J. Perry, Mark D. Leatherman, Shahid Murtuza
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Patent number: 7579476Abstract: The present invention is directed to a process for the catalytic oxidation of the thioether 5-methoxy-2-((4-methoxy-3,5-dimethyl-2-pyridinyl)methyl)methylthio)-1H-benzimidazole to its sulfoxide: 5-methoxy-2-((4-methoxy-3,5-dimethyl-2-pyridinyl)methyl)methylsulfinyl)-1H-benzimidazole comprising: reacting the thioether with: 1) a transition metal catalyst; and, 2) an oxygen source; wherein the thioether is oxidized to a sulfoxide and wherein one of either the R and S enantiomers is formed to an enantiomeric excess.Type: GrantFiled: May 15, 2006Date of Patent: August 25, 2009Assignee: Praktikatalyst Pharma, LLCInventors: Kenneth S. Wheelock, Louis A. Piccone
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Patent number: 7576170Abstract: Cyclic siloxanes that contain releasable active ingredients are described. The active ingredient can be an alcohol or enolizable carbonyl-containing compound such as a ketone, aldehyde, or ester. The product siloxanes are useful in a variety of personal and household care products where slow or controlled release of active ingredient is desired. A preferred embodiment utilizes substituents that when released as active ingredients are fragrant.Type: GrantFiled: December 19, 2003Date of Patent: August 18, 2009Assignee: Momentive Performance MaterialsInventors: Robert J. Perry, Mark D. Leatherman, Shahid Murtuza
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Patent number: 7507775Abstract: Disiloxane compounds of the formula MM? Where M comprises either branched allyl hydrocarbon substituents or silanyl substituents and M? comprises an alkylpolyalkyleneoxide substituent. The disiloxane compounds of the invention exhibit an enhanced resistance to hydrolysis outside a pH range ranging from 6 to 7.5, and are useful as surfactants.Type: GrantFiled: December 13, 2005Date of Patent: March 24, 2009Assignee: Momentive Performance Materials Inc.Inventors: Mark D. Leatherman, George A. Policello, Suresh K. Rajaraman
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Patent number: 7411007Abstract: A composition comprising the reaction products of MaMHbMEcDdDHeDEfTgTHhTEiQj where M=R1R2R3SiO1/2; MH=R4R5HSiO1/2; ME=R6R7RESiO1/2; D=R8R9SiO2/2; DH=R10HSiO2/2; DE=R11RESiO2/2; T=R12SiO3/2; TH=HSiO3/2; TE=RESiO3/2; and Q=SiO4/2; where R1, R2, R3, R8, R9 and R12 are independently monovalent hydrocarbon radicals having from one to sixty carbon atoms; R4, R5 and R10 are independently monovalent hydrocarbon radicals having from one to sixty carbon atoms or hydrogen; R6, R7, R11 are independently monovalent hydrocarbon radicals having from one to sixty carbon atoms or RE; each RE is independently a monovalent hydrocarbon radical containing one or more oxirane moieties having from one to sixty carbon atoms; the stoichiometric subscripts a, b, c, d, e, f, g, h, i, and j are either zero or positive subject to the following limitations: a+b+c>1; b+e+h>1; c+f+i>1; b+e+h>c+f+i. In a preferred embodiment the reaction product of the present invention is a polyether siloxane copolymer network.Type: GrantFiled: November 14, 2005Date of Patent: August 12, 2008Inventors: Michael Joseph O'Brien, Atchara Chaiyawat
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Patent number: 7388049Abstract: A composition comprising the reaction products of MaMHbMEcDdDHeDEfTgTHhTEiQj where M=R1R2R3SiO1/2; MH=R4R5H SiO1/2; ME=R6R7RESiO1/2; D=R8R9SiO2/2; DH=R10HSiO2/2; DE=R11RESiO2/2; T=R12SiO3/2; TH=HSiO3/2; TE=RESiO3/2; and Q=SiO4/2; where R1, R2, R3, R8, R9 and R12 are independently monovalent hydrocarbon radicals having from one to sixty carbon atoms; R4, R5 and R10 are independently monovalent hydrocarbon radicals having from one to sixty carbon atoms or hydrogen; R6, R7, R11 are independently monovalent hydrocarbon radicals having from one to sixty carbon atoms or RE; each RE is independently a monovalent hydrocarbon radical containing one or more oxirane moieties having from one to sixty carbon atoms; the stoichiometric subscripts a, b, c, d, e, f, g, h, i, and j are either zero or positive subject to the following limitations: a+b+c>1;b+e+h>1;c+f+i>1;b+e+h>c+f+i. In a preferred embodiment the reaction product of the present invention is a polyether siloxane copolymer network.Type: GrantFiled: October 28, 2005Date of Patent: June 17, 2008Assignee: Momentive Performance Materials Inc.Inventor: Michael Joseph O'Brien
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Patent number: 7381769Abstract: A composition comprising the reaction products of MaMHbMEcDdDHeDEfTgTHhTEiQj where M=R1R2R3SiO1/2; MH=R4R5HSiO1/2; ME=R6R7RESiO1/2; D=R8R9SiO2/2; DH=R10HSiO2/2; DE=R11RESiO2/2; T=R12SiO3/2; TH=HSiO3/2; TE=RESiO3/2; and Q=SiO4/2; where R1, R2, R3, R8, R9 and R12 are independently monovalent hydrocarbon radicals having from one to sixty carbon atoms; R4, R5 and R10 are independently monovalent hydrocarbon radicals having from one to sixty carbon atoms or hydrogen; R6, R7, R11 are independently monovalent hydrocarbon radicals having from one to sixty carbon atoms or RE; each RE is independently a monovalent hydrocarbon radical containing one or more oxirane moieties having from one to sixty carbon atoms; the stoichiometric subscripts a, b, c, d, e, f, g, h, i, and j are either zero or positive subject to the following limitations: a+b+c>1; b+e+h>1; c+f+i>1; b+e+h>c+f+i; and when d+e+f+g+h+i+j=0, a+b+c=2 wherein said reaction product is prepared in the presence of a surfactant.Type: GrantFiled: April 27, 2005Date of Patent: June 3, 2008Assignee: Momentive Performance Materials Inc.Inventor: Michael Joseph O'Brien
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Patent number: 7361722Abstract: A method of producing silicone copolymers having fluorinated repeat units (D units) wherein the fluorine content of the copolymer is above about thirty-seven (37) weight percent.Type: GrantFiled: November 14, 2005Date of Patent: April 22, 2008Assignee: Momentive Performance Materials Inc.Inventor: John S. Razzano
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Patent number: 7241835Abstract: Methods for making homogenized cosmetic formulations comprising a silicone gel.Type: GrantFiled: May 16, 2003Date of Patent: July 10, 2007Assignee: General Electric CompanyInventors: Michael Joseph O'Brien, Suresh K. Rajaraman
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Patent number: 7064173Abstract: A new silicone condensation reaction, the condensation between an alkoxy silane or siloxane and an organo-hydrosilane or siloxane and catalysts therefore is described and claimed.Type: GrantFiled: December 30, 2002Date of Patent: June 20, 2006Assignee: General Electric CompanyInventors: Slawomir Rubinsztajn, James Anthony Cella
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Patent number: 6942926Abstract: Siloxane cross-linked polyolefins provide for a composition that is more or less impermeable to gaseous sulfur compounds such as hydrogen sulfide providing for a protective coating for various articles of manufacture especially electronic components and a method of protecting various articles of manufacture from the effects of such gaseous sulfur compounds.Type: GrantFiled: April 18, 2003Date of Patent: September 13, 2005Assignee: General Electric CompanyInventors: Xiaoqian Liu, Slawomir Rubinsztajn
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Patent number: 6890601Abstract: A silicone pressure sensitive adhesive composition containing the condensation product of a silanol-functional silicone resin, wherein the resin contains M structural units according to the formula R3SiO1/2, wherein R is a monovalent hydrocarbon radical, and Q structural units according to the formula SiO4/2 in a ratio of M units to Q units of less than 1.1:1, a silanol-functional polydiorganosiloxane gum, and a crosslinker exhibits high tack and high lap shear strength.Type: GrantFiled: December 10, 2002Date of Patent: May 10, 2005Assignee: General Electric CompanyInventors: Roy Griswold, Frank J. Traver, Jeffrey H. Wengrovius, Shaow B. Lin
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Patent number: 6774201Abstract: Star branched siloxane compounds suitable as anti-mist additives in the coating of flexible supports are made as the reaction product of: Mg′MaMHb−gDcDh′DHd−hTeTi′THf−i and (MjMVikDlDVimTnTVioQp)q, in the presence of a noble metal hydrosilylation catalyst where the ratio between the hydride containing precursor and the vinyl containing precursor is defined by a mathematical relationship between the stoichiometric subscripts of the precursors, (b+d+f−g−h−i)/(((k+m+o)p)q) ranging from 4.59 to 0.25 and where the compound: Mg′MaMHb−gDcDh′DHd−hTeTi′THf−i may be obtained by the following reaction: MaMHbDcDHdTeTHf+&agr;CH2═CHR1→Mg′MaMHb−gDcDh′DHd−hTeTi′THf−I, which compound itself is a star branched siloxane compound useful as an anti-mist additive.Type: GrantFiled: November 15, 2002Date of Patent: August 10, 2004Assignee: General Electric CompanyInventors: John Alfred Kilgour, Edwin C. Cua, John A. Cummings
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Patent number: 6749786Abstract: A continuous process provides a devolatilized liquid injection moldable silicone composition. In the process, a filler, treating agent and silicone polymer are introduced into an extruder having a length to diameter ratio of at least greater than 50. The filler, treating agent and silicone elastomer are continuously compounded in the extruder into a devolatilized liquid injection moldable silicone composition. A system for preparing a liquid silicone rubber composition comprises a mixer to prepare a concentrate of filler and silicone polymer, a long extruder having an L/D ratio of greater than 50, connected to the mixer to receive the concentrate from the mixer and to compound and devolatilize the concentrate, a treating agent and silicone polymer into a liquid silicone rubber composition containing volatiles and a cooler to receive the liquid silicone rubber composition to cool, homogenize and further devolatilized the composition.Type: GrantFiled: May 28, 2002Date of Patent: June 15, 2004Assignee: General Electric CompanyInventors: Bruce Boudreau, Teresa Grocela-Rocha, Edward M. Jeram, August O. Liermann, Gerardo Rocha-Galicia, David A. Williams
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Patent number: D493714Type: GrantFiled: July 28, 2003Date of Patent: August 3, 2004Assignee: General Electric CompanyInventor: Peter M. Whitney