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:
Application
Filed:
April 30, 2007
Publication date:
February 28, 2008
Applicant:
Momentive Performance Materials Inc.
Inventors:
Ning Lu, Anna Czech, Pat Hoontrakul, John Nicholson, Roy Rojas-Wahl
Abstract: An improved method for concentrating solids in silicone resin coating compositions is provided, said compositions comprising higher solids levels that are often needed in order to increase the thickness of the final coated film when applied to a given substrate.
Abstract: A process for crosslinking polymers employs a silane crosslinker which, upon hydrolysis, produces a reduced quantity of volatile organic compound.
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:
Application
Filed:
April 30, 2007
Publication date:
January 10, 2008
Applicant:
Momentive Performance Materials Inc.
Inventors:
Ning Lu, Anna Czech, Pat Hoontrakul, John Nicholson, Roy Rojas-Wahl
Abstract: A heat treatment apparatus for use in batch heating/wafer processing is provided, which comprises a process chamber for receiving a wafer boat, at least a heating element comprising a substrate body configured to form an electrical heating circuit for at least one heating zone and encapsulated in a continuous overcoat layer, a heat reflector comprising a heat reflective surface disposed on the heating element, and the heating element has a ramp rate of at least 1° C. per second for heating the wafers in the wafer boat.
Type:
Grant
Filed:
October 11, 2006
Date of Patent:
December 25, 2007
Assignee:
Momentive Performance Materials Inc.
Inventors:
Eric Wintenberger, Douglas Alan Longworth, Wei Fan, John Thomas Mariner
Abstract: A process for producing boron nitride using a boron containing ore as a starting material, by reacting naturally occurring ulexite with ammonia at high temperature, for a boron nitride with high impurity and at a high yield.
Type:
Grant
Filed:
November 3, 2005
Date of Patent:
November 20, 2007
Assignee:
Momentive Performance Materials Inc.
Inventors:
Laurence Maniccia, Donald William Pultz, Jr.
Abstract: A method of making a cubic halide scintillator material includes pressing a powder mixture of cubic halide and at least one activator under conditions of pressure, temperature, residence time and particle size effective to provide a polycrystalline sintered cubic halide scintillator having a pulse height resolution of from about 7% to about 20%. The conditions include a temperature ranging from about ambient temperature up to about 90% of the melting point of the cubic halide, a pressure of from about 30,000 psi to about 200,000 psi, a pressing residence time of from about 5 minutes to about 120 minutes and an average cubic halide particle size of from about 60 micrometers to about 275 micrometers.
Type:
Application
Filed:
January 29, 2007
Publication date:
October 11, 2007
Applicant:
Momentive Performance Materials Inc.
Inventors:
Sergio Martins Loureiro, Venkat Venkataramani, Lucas Clarke, Kevin McEvoy, Carl Vess, Thomas McNulty, Steven Duclos, Adrian Ivan, Patricia Hubbard
Abstract: A composition for coating sliding or rolling or fretting or impacting members is formed by preparing a composite powder of TiB2 and BN, with a TiB2 to BN ratio ranging from 1:7 to 20:1, and a metallic matrix selected from the group consisting of nickel, chromium, iron, cobalt, aluminum, tungsten, carbon and alloys thereof
Abstract: A fluoroalkylsilylated MQ resin is obtained by reacting an MQ resin with a fluoroalkylsilane. Pressure sensitive adhesion compositions containing the fluoroalkylsilylated MQ resin as tackifier and, optionally, a silicone gum, e.g., a fluorosilicone gum, exhibit high levels of solvent resistance.
Type:
Grant
Filed:
April 12, 2005
Date of Patent:
August 7, 2007
Assignee:
Momentine Performance Materials Inc.
Inventors:
Roy Melvin Griswold, Richard Paul Eckberg
Abstract: A composition comprising at least one silane possessing an unsaturated organic function; at least two free radical initiators, and a process for producing silane-crosslinked thermoplastic polymers comprising providing a cross-linkable compound; at least one thermoplastic polymer; and, reacting the crosslinkable compound under reactive mechanical-working conditions and exposing the crosslinkable compound to moisture to provide crosslinked thermoplastic polymers.
Type:
Grant
Filed:
June 2, 2006
Date of Patent:
July 10, 2007
Assignee:
Momentive Performance Materials Inc.
Inventors:
Willy Furrer, Abdellatif Abderrazig, Louis Boogh
Abstract: A new silicone condensation reaction, the condensation between an alkoxy silane or siloxane or a dihydric phenol and an organo-hydrosilane or siloxane and catalysts therefore is described and claimed.
Type:
Grant
Filed:
August 12, 2004
Date of Patent:
July 10, 2007
Assignee:
Momentive Performance Materials Inc.
Inventors:
James Anthony Cella, Slawomir Rubinsztajn
Abstract: The invention relates to a feedstock material for use in making heat spreaders, comprising a sheet of annealed pyrolytic graphite having a thermal conductivity of greater than 1000 watts/m-K, a size in any dimension of at least 5 cm and a thickness of at least 0.2 mm. In one embodiment, the feedstock is made by hot-pressing a stack of alternate layers of pyrolytic graphite sheets with flat graphite dies for a finished sheet of annealed pyrolytic graphite comprising a plurality of layers being parallel to each other of at least 0.075 degrees per mm of thickness. In another embodiment, the finished sheet of annealed pyrolytic graphite is made by graphitizing a stack of films comprising a high-carbon polymer.
Abstract: A vacuum heater assembly for heating fluids flowing within; the assembly comprises an inner member having a heating surface with an average cross-sectional area with an aspect ratio of at least 2. The inner member is disposed within an outer member and with a vacuum drawn in the space between the inner member and the outer member, the heat transfers toward the center of the inner member, heating the fluids flowing within.
Abstract: A composition comprising at least one silane possessing an unsaturated organic function; at least two free radical initiators, and a process for producing silane-crosslinked thermoplastic polymers comprising providing a cross-linkable compound; at least one thermoplastic polymer; and, reacting the crosslinkable compound under reactive mechanical-working conditions and exposing the crosslinkable compound to moisture to provide crosslinked thermoplastic polymers.
Type:
Grant
Filed:
September 12, 2003
Date of Patent:
April 10, 2007
Assignee:
Momentive Performance Materials Inc.
Inventors:
Willy Furrer, Abdellatif Abderraziq, Louis Boogh
Abstract: A plasticizer formed by reacting a carboxylic acid with a mixture of two or more alcohols that vary from one another by the number of carbons comprising them. The carboxylic acid used may be a tricarboxylic acid such as citric acid or any other carboxylic acid. Further, the resultant ester formed by reacting the carboxylic acid with the alcohol mixture may be acylated to form a plasticizer having somewhat different characteristics. According to the present invention, a plasticizer formed by any of the processes described herein can be used in conjunction with polymers according to methods well known in the art to increase pliability and plasticity.
Abstract: A method and mandrel apparatus for making a unibody containment structure, such as an molecular beam epitaxy cell crucible, with a negative draft portion, via chemical vapor deposition.