Abstract: A process for producing an epoxy silane oligomer including a reaction glycidoxy silane and/or cycloaliphatic epoxy silane having 2 or 3 alkoxy groups and, optionally, a copolymerizable silane other than glycidoxy and cycloaliphatic epoxy silane, with less than 1.5 equivalents of water in the presence of a catalyst, wherein said water is continuously fed during the reaction.
Abstract: A method may produce a resonant cavity light emitting device. A seed gallium nitride crystal and a source material in a nitrogen-containing superheated fluid may provide a medium for mass transport of gallium nitride precursors therebetween. A seed crystal surface may be prepared by applying a first thermal profile between the seed gallium nitride crystal and the source material. Gallium nitride material may be grown on the prepared surface of the seed gallium nitride crystal by applying a second thermal profile between the seed gallium nitride crystal and the source material while the seed gallium nitride crystal and the source material are in the nitrogen-containing superheated fluid. A stack of group III-nitride layers may be deposited on the single-crystal gallium nitride substrate. The stack may include a first mirror sub-stack and an active region adaptable for fabrication into one or more resonant cavity light emitting devices.
Type:
Grant
Filed:
December 6, 2005
Date of Patent:
September 1, 2009
Assignee:
Momentive Performance Materials Inc.
Inventors:
Mark Philip D'Evelyn, Xian-An Cao, Anping Zhang, Steven Francis LeBoeuf, Huicong Hong, Dong-Sil Park, Kristi Jean Narang
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
Abstract: This invention relates to a moisture-curable silylated resin-containing composition containing, inter alia, moisture-curable silylated resin, the cured composition exhibiting low permeability to gas(es).
Abstract: A curable composition comprising a hydrolysable silyl-containing polymer and a silicone-containing paint adhesion additive that provide curable silyl-containing polymer composition which has improved adhesion of coatings, paints, adhesives, and other surface treatments thereto.
Type:
Grant
Filed:
June 27, 2007
Date of Patent:
August 4, 2009
Assignee:
Momentive Performance Materials Inc.
Inventors:
Zhiqing Lin, David A. Williams, Shayne J. Landon, Scott Pregont, Eric Pohl
Abstract: A mercaptofunctional silane is provided of general Formula (1): [HSG1SiZ?Z?]m[HSG2SiZ?3]n[HSG3SiZ?2X]o[[HSG4SiZ?X2]p??(1) wherein the substituents are defined herein.
Type:
Grant
Filed:
October 6, 2006
Date of Patent:
July 14, 2009
Assignee:
Momentive Performance Materials Inc.
Inventors:
Antonio Chaves, Eric Raymond Pohl, Richard W. Cruse
Abstract: The invention relates to coating formulations comprising (i) a silicone-based coating component susceptible to misting under mist-producing conditions; and (ii) an anti-misting amount of a branched polysiloxane component resulting from copolymerizing under hydrosilylation conditions a component mixture comprising (a) one or more organosilicon compounds containing at least two unsaturated hydrocarbon functional groups per molecule, and (b) one or more silylhydride-containing compounds containing at least two silylhydride functional groups per molecule, with the provision that (i) at least one component (a) or (b) contains at least three functional groups per molecule; (ii) a component (a) or (b) having a higher number of functional groups per molecule is present in a molar amount equal to or lower than a molar amount of the other component (a) or (b) having a lower number of functional groups per molecule; and (iii) unsaturated hydrocarbon compounds are excluded from the component mixture.
Abstract: The disclosure herein relates to organofunctional silanes and mixtures of organofunctional silanes possessing mercaptan and hydrocarbyl and/or heterocarbyl functionality. These silanes reduce or eliminate the generation of volatile organic compounds (VOC's) during use, aid in the processing of filled elastomeric materials and enhance the end-use properties of the filled elastomer. The present disclosure relates to a rubber composition and article comprising these silanes.
Type:
Grant
Filed:
August 14, 2006
Date of Patent:
June 23, 2009
Assignee:
Momentive Performance Materials Inc.
Inventors:
Antonio Chaves, Eric R. Pohl, Christopher M. Hartshorn
Abstract: A filled elastomer composition comprises: a) at least one rubber component; b) at least one particulate filler; and, c) at least one mercaptofunctional silane of a particular structure.
Type:
Grant
Filed:
October 6, 2006
Date of Patent:
June 23, 2009
Assignee:
Momentive Performance Materials Inc.
Inventors:
Antonio Chaves, Eric Raymond Pohl, Richard W. Cruse, Daniel Gurovich
Abstract: Thermal interface compositions contain both non-electrically conductive micron-sized fillers and electrically conductive nanoparticles blended with a polymer matrix. Such compositions increase the bulk thermal conductivity of the polymer composites as well as decrease thermal interfacial resistances that exist between thermal interface materials and the corresponding mating surfaces. Such compositions are electrically non-conductive. Formulations containing nanoparticles also show less phase separation of micron-sized particles than formulations without nanoparticles.
Type:
Grant
Filed:
September 3, 2003
Date of Patent:
June 23, 2009
Assignee:
Momentive Performance Materials, Inc.
Inventors:
Sandeep Shrikant Tonapi, Hong Zhong, Davide Louis Simone, Raymond Albert Fillion
Abstract: A new, non-wrapping approach to functionalizing nanotubes, such as carbon nanotubes, in organic and inorganic solvents is provided. In accordance with certain embodiments, carbon nanotube surfaces are functionalized in a non-wrapping fashion by functional conjugated polymers that include functional groups. Various embodiments provide polymers that noncovalently bond with carbon nanotubes in a non-wrapping fashion. For example, various embodiments of polymers are provided that comprise a relatively rigid backbone that is suitable for noncovalently bonding with a carbon nanotube substantially along the nanotube's length, as opposed to about its diameter. In preferred polymers, the major interaction between the polymer backbone and the nanotube surface is parallel ?-stacking. In certain implementations, the polymers further comprise at least one functional extension from the backbone that are any of various desired functional groups for functionalizing a carbon nanotube.
Type:
Grant
Filed:
July 9, 2007
Date of Patent:
June 16, 2009
Assignees:
Zyvex Performance Materials, Inc., University of Pittsburgh - of the Commonwealth System of Higher Education
Abstract: A new, non-wrapping approach to solubilize nanotubes, such as carbon nanotubes, in organic and inorganic solvents is provided. In accordance with certain embodiments, carbon nanotube surfaces are functionalized in a non-wrapping fashion by functional conjugated polymers that include functional groups for solubilizing such nanotubes. Various embodiments provide polymers that noncovalently bond with carbon nanotubes in a non-wrapping fashion. For example, various embodiments of polymers are provided that comprise a relatively rigid backbone that is suitable for noncovalently bonding with a carbon nanotube substantially along the nanotube's length, as opposed to about its diameter. In preferred polymers, the major interaction between the polymer backbone and the nanotube surface is parallel ?-stacking. The polymers further comprise at least one functional extension from the backbone that are any of various desired functional groups that are suitable for solubilizing a carbon nanotube.
Type:
Grant
Filed:
July 10, 2007
Date of Patent:
June 9, 2009
Assignees:
Zyvex Performance Materials, Inc., University of Pittsburgh—of the Commonwealth System of Higher Education
Abstract: The invention relates to a high thermal efficiency, insulated glass unit structure sealed with a cured composition containing, inter alia, moisture-curable silylated resin, the cured composition exhibiting low permeability to gas(es).
Abstract: Silane compositions of the general formula are provided herein comprising [(RO)x(R1)(3-x)—Si-Mt]q-L-[(Ra)cAr—(CR2?CR22)y]z wherein R and R1 are independently a hydrocarbon group of from 1 to about 20 carbon atoms; R2 are each independently hydrogen or a hydrocarbon group of from 1 to about 20 carbon atoms; M optionally is a divalent hydrocarbon connecting group of from 1 to about 20 carbon atoms to link the silicon atom and the L group; L is a covalently bound hydrocarbon linking group of from 1 to about 20 carbon atoms or a heteroatom linking group selected from the group consisting of —O—, —S—, —NR3— wherein R3 is hydrogen or a hydrocarbon group of from 1 to about 20 carbon atoms; Ra is an alkyl group of 1 to 12 carbon atoms; Ar is a substituted or unsubstituted aromatic group; q is an integer of 1 to 4; t and c are each independently 0 or 1; and x, y and z are each independently integers of 1 to 3, inclusive, with the proviso that t is 1 when L is a heteroatom group.
Type:
Grant
Filed:
August 13, 2004
Date of Patent:
May 12, 2009
Assignee:
Momentive Performance Materials Inc.
Inventors:
Keith J. Weller, Lesley Hwang, Richard W. Cruse, Leda Gonzalez, Robert J. Pickwell, Martin Hofstetter, Wesley E. Sloan, Prashant G. Joshi
Abstract: A composition of matter is disclosed that comprises at least one silane coupling agent for coupling an elastomer and a filler wherein said silane comprises at least one hydrolysable group that, upon compounding said silane with said elastomer and filler, is released to yield a compound that improves downstream processability of the compounded composition or the properties of the final rubber product or both.
Abstract: The present invention relates to improved nanocomposite compositions and methods for making and using the same. This invention also relates to the use of these inorganic-organic nanocomposite in compositions, for example, coatings, sealants, caulks, adhesives, and as additives for solid polymer-containing compositions.
Type:
Grant
Filed:
January 20, 2006
Date of Patent:
May 12, 2009
Assignee:
Momentive Performance Materials Inc.
Inventors:
David A. Williams, Vikram Kumar, Edward J. Nesakumar, Indumathi Ramakrishnan
Abstract: An etchant including a halogenated salt, such as Cryolite (Na3AlF6) or potassium tetrafluoro borate (KBF4), is provided. The salt may be present in the etchant in an amount sufficient to etch a substrate and may have a melt temperature of greater than about 200 degrees Celsius. A method of wet etching may include contacting an etchant to at least one surface of a support layer of a multi-layer laminate, wherein the support layer may include aluminum oxide; or contacting an etchant to at least one surface of a support layer of a multi-layer laminate, wherein the etchant may include Cryolite (Na3AlF6), potassium tetrafluoro borate (KBF4), or both; and etching at least a portion of the support layer. The method may provide a laminate produced by growing a crystal onto an aluminum oxide support layer, and chemically removing at least a portion of the support layer by wet etch. An electronic device, optical device or combined device including the laminate is provided.
Type:
Grant
Filed:
June 27, 2005
Date of Patent:
May 5, 2009
Assignee:
Momentive Performance Materials Inc.
Inventors:
Steven Alfred Tysoe, Steven Francis LeBoeuf, Mark Philip D'Evelyn, Venkat Subramaniam Venkataramani, Vinayak Tilak, Jeffrey Bernard Fortin, Charles Adrian Becker, Stephen Daley Arthur, Samhita Dasgupta, Kanakasabapathi Subramanian, Robert John Wojnarowski, Abasifreke Udo Ebong
Abstract: A boron nitride composition having its surface treated with a coating layer comprising at least an organosilicon compound. In one embodiment, the boron nitride powder surface is first treated by either a calcination process, or by coating with at least an inorganic compound for the surface to have a plurality of reactive sites containing at least a functional group that is reactive to at least one functional group of the organosilicon compound.
Abstract: The invention relates to architectural elements possessing at least two components bonded together employing a silicone rubber composition of high stability and translucency, which is useful for application as a bedding sealant in the manufacture of such architectural elements as window assemblies, door assemblies, structural glazing, curtainwall applications, and the like.
Abstract: An aqueous process is described in which thiocarboxylate silane is produced from haloalkyl silane by reaction of the haloalkyl silane with an aqueous solution of thiocarboxylate salt in the presence of a catalytically effective amount of alkylguanidinium salt.
Type:
Grant
Filed:
April 14, 2005
Date of Patent:
May 5, 2009
Assignee:
Momentive Performance Materials Inc.
Inventors:
Tiberiu Ladislau Simandan, Thomas Link Guggenheim