Patents Represented by Attorney, Agent or Law Firm Kenneth S. Wheelock
  • Patent number: 7902314
    Abstract: 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: Grant
    Filed: March 5, 2010
    Date of Patent: March 8, 2011
    Assignee: Momentive Performance Materials Inc.
    Inventors: Joseph Edward Nesakumar, Ganesh Kannan, Vikram Kumar, Hariharan Ramalingam, Mark D. Leatherman, Suresh K. Rajaraman
  • Patent number: 7851581
    Abstract: 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: Grant
    Filed: August 17, 2007
    Date of Patent: December 14, 2010
    Assignee: Momentive Performance Materials Inc.
    Inventors: Anna M. Czech, Benjamin Falk, John Nicholson, George A. Policello, Jo Anne Tully
  • Patent number: 7833541
    Abstract: 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: Grant
    Filed: April 30, 2007
    Date of Patent: November 16, 2010
    Assignee: Momentive Performance Materials Inc.
    Inventors: Ning Lu, Anna Maria Czech, Pat Hoontrakul, John Nicholson, Roy Rojas-Wahl
  • Patent number: 7687574
    Abstract: 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: Grant
    Filed: April 30, 2007
    Date of Patent: March 30, 2010
    Assignee: Momentive Performance Materials Inc.
    Inventors: Ning Lu, Anna Maria Czech, Pat Hoontrakul, John Nicholson, Roy Rojas-Wahl
  • Patent number: 7601680
    Abstract: 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: Grant
    Filed: December 13, 2005
    Date of Patent: October 13, 2009
    Assignee: Momentive Performance Materials
    Inventors: Dong Wang, Wenqing Peng
  • Patent number: 7579476
    Abstract: 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: Grant
    Filed: May 15, 2006
    Date of Patent: August 25, 2009
    Assignee: Praktikatalyst Pharma, LLC
    Inventors: Kenneth S. Wheelock, Louis A. Piccone
  • Patent number: 7579495
    Abstract: 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: Grant
    Filed: December 19, 2003
    Date of Patent: August 25, 2009
    Assignee: Momentive Performance Materials Inc.
    Inventors: Robert J. Perry, Mark D. Leatherman, Shahid Murtuza
  • Patent number: 7576170
    Abstract: 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: Grant
    Filed: December 19, 2003
    Date of Patent: August 18, 2009
    Assignee: Momentive Performance Materials
    Inventors: Robert J. Perry, Mark D. Leatherman, Shahid Murtuza
  • Patent number: 7507775
    Abstract: 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: Grant
    Filed: December 13, 2005
    Date of Patent: March 24, 2009
    Assignee: Momentive Performance Materials Inc.
    Inventors: Mark D. Leatherman, George A. Policello, Suresh K. Rajaraman
  • Patent number: 7411007
    Abstract: 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: Grant
    Filed: November 14, 2005
    Date of Patent: August 12, 2008
    Inventors: Michael Joseph O'Brien, Atchara Chaiyawat
  • Patent number: 7388049
    Abstract: 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: Grant
    Filed: October 28, 2005
    Date of Patent: June 17, 2008
    Assignee: Momentive Performance Materials Inc.
    Inventor: Michael Joseph O'Brien
  • Patent number: 7381769
    Abstract: 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: Grant
    Filed: April 27, 2005
    Date of Patent: June 3, 2008
    Assignee: Momentive Performance Materials Inc.
    Inventor: Michael Joseph O'Brien
  • Patent number: 7361722
    Abstract: 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: Grant
    Filed: November 14, 2005
    Date of Patent: April 22, 2008
    Assignee: Momentive Performance Materials Inc.
    Inventor: John S. Razzano
  • Patent number: 7241835
    Abstract: Methods for making homogenized cosmetic formulations comprising a silicone gel.
    Type: Grant
    Filed: May 16, 2003
    Date of Patent: July 10, 2007
    Assignee: General Electric Company
    Inventors: Michael Joseph O'Brien, Suresh K. Rajaraman
  • Patent number: 7064173
    Abstract: 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: Grant
    Filed: December 30, 2002
    Date of Patent: June 20, 2006
    Assignee: General Electric Company
    Inventors: Slawomir Rubinsztajn, James Anthony Cella
  • Patent number: 6942926
    Abstract: 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: Grant
    Filed: April 18, 2003
    Date of Patent: September 13, 2005
    Assignee: General Electric Company
    Inventors: Xiaoqian Liu, Slawomir Rubinsztajn
  • Patent number: 6890601
    Abstract: 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: Grant
    Filed: December 10, 2002
    Date of Patent: May 10, 2005
    Assignee: General Electric Company
    Inventors: Roy Griswold, Frank J. Traver, Jeffrey H. Wengrovius, Shaow B. Lin
  • Patent number: 6774201
    Abstract: 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: Grant
    Filed: November 15, 2002
    Date of Patent: August 10, 2004
    Assignee: General Electric Company
    Inventors: John Alfred Kilgour, Edwin C. Cua, John A. Cummings
  • Patent number: 6749786
    Abstract: 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: Grant
    Filed: May 28, 2002
    Date of Patent: June 15, 2004
    Assignee: General Electric Company
    Inventors: Bruce Boudreau, Teresa Grocela-Rocha, Edward M. Jeram, August O. Liermann, Gerardo Rocha-Galicia, David A. Williams
  • Patent number: D493714
    Type: Grant
    Filed: July 28, 2003
    Date of Patent: August 3, 2004
    Assignee: General Electric Company
    Inventor: Peter M. Whitney