Abstract: A low viscosity filler boron nitride agglomerate particles having a generally spherical shape bound together by an organic binder and to a process for producing a BN powder composition of spherically shaped boron nitride agglomerated particles having a treated surface layer which controls its viscosity.
Type:
Grant
Filed:
June 30, 2011
Date of Patent:
July 14, 2015
Assignee:
Momentive Performance Materials Inc.
Inventors:
David Lodyga, Joseph W. Tereshko, Ajit Sane, Thomas Fox, Paulo Meneghetti
Abstract: There are provided a composition for silicone rubber foam, a manufacturing method of a silicone rubber foam, and a silicone rubber foam in which it is possible to control the foaming states. The composition for silicone rubber foam contains: (A) 100 parts by mass of polyorganosiloxane having a degree of polymerization of 4,000 to 10,000 and having two or more alkenyl groups at a content of 0.001 mmol/g or more and less than 0.3 mmol/g; an amount of polyorganohydrogensiloxane having an average of two or more Si-atom-bonded hydrogen atoms so that a molar ratio of the hydrogen atoms to the alkenyl groups in the (A) component is 0.001 to 5; 0.1 to 10 parts by mass of an organic foaming agent with a decomposition temperature of 50 to 250° C.; 5 to 200 parts by mass of silica powder; and a catalyst amount of a platinum-based metal catalyst activated with ultraviolet rays.
Type:
Grant
Filed:
June 6, 2014
Date of Patent:
July 7, 2015
Assignee:
MOMENTIVE PERFORMANCE MATERIALS JAPAN LLC
Abstract: The present invention relates to a process for preparing silylated polyurethane polymers which have increased stability under ambient condition or storage toward atmospheric moisture, in the presence of at least one of titanium-containing catalyst or zirconium-containing catalyst and to silylated polyurethane polymer compositions comprising these catalysts.
Abstract: The present invention is directed to a primer composition, comprising: (a) metal oxide nanoparticles surface-modified with an organofunctional silane moiety having a specific functionality, (b) an organic polymer; and (c) one or more solvents; wherein the composition comprises less than 4 wt % of water, based on the total weight of said primer composition. The composition produces films having excellent optical and adhesion characteristics, and excellent weatherability and thermal stability.
Type:
Application
Filed:
December 11, 2013
Publication date:
June 11, 2015
Applicant:
Momentive Performance Materials Inc.
Inventors:
Karthikeyan Murugesan, Indumathi Ramakrishnan, Robert F. Hayes, Keith J. Weller
Abstract: This room-temperature-curable polyorganosiloxane composition contains: (A) 100 parts by mass of polyorganosiloxane consisting of: (A1) 10 to 80 parts by mass of a both ends alkoxysilyl group-terminated polyorganosiloxane and (A2) 90 to 20 parts by mass of a partial hydrolysis condensate (the number of Si atoms is 10 to 200) of a silane compound expressed by a general formula: R4bSi(OR)4-b; (B) 0.1 to 15 parts by mass of a silane compound or a partial hydrolysis condensate thereof (the number of Si atoms is 1 or more and less than 10) as a cross-linking agent; and (C) 0.1 to 15 parts by mass of an organic titanium compound as a curing catalyst. It has low viscosity and good coatability without a solvent, and forms a cured coating film excellent in scratch resistance.
Type:
Application
Filed:
January 26, 2015
Publication date:
May 21, 2015
Applicant:
MOMENTIVE PERFORMANCE MATERIALS JAPAN LLC
Abstract: The invention is directed to phenyl-containing functional polysiloxanes and polycarbonate-polysiloxane copolymer compositions made therefrom having improved optical clarity and better low temperature impact resistance.
Type:
Application
Filed:
May 30, 2014
Publication date:
May 21, 2015
Applicant:
MOMENTIVE PERFORMANCE MATERIALS JAPAN LLC
Inventors:
Koji Kanuma, Yataka Horie, Anuj Mittal, Laxmi Samantara, lndumathi Ramakrishnan, Naofumi Kumabe, Narayana Padmanabha Iyer, Samim Alam
Abstract: A solid, water-soluble fast-dissolving antidrift composition includes a urea-based complex-forming component (i) complexed with an antidrift component (ii), the antidrift composition optionally further including an adjuvant component (iii).
Abstract: A room temperature-curable polyorganosiloxane composition is a two component-type room temperature-curable polyorganosiloxane composition including (A) a base composition and (B) a cross-linking agent composition. The component (A) contains (a1) polyorganosiloxane having a hydroxyl group or an alkoxy group at a molecular end and (a2) an inorganic filler. The component (B) includes (b1) an organosilicon compound having three or more hydrolyzable groups in one molecule, (b2) polyorganosiloxane having an alkoxy group at a molecular end and represented by the following general formula and, and (b3) a curing catalyst. In the two component-type room temperature-curable polyorganosiloxane composition, it is possible to appropriately adjust a compounding ratio of the base component and the cross-linking component according to the use of an automatic mixer/discharger or the like without deteriorating properties such as deep-part curability, curing uniformity, and storage stability.
Type:
Grant
Filed:
June 27, 2013
Date of Patent:
May 19, 2015
Assignee:
MOMENTIVE PERFORMANCE MATERIALS JAPAN LLC
Abstract: An apparatus for processing materials at high temperatures comprises a high strength enclosure; a plurality of high strength radial segments disposed adjacent to and radially inward from the high strength enclosure; a liner disposed adjacent to and radially inward from the radical segments; a chamber defined interior to the liner; a heating device disposed within the chamber; and a capsule disposed within the chamber, the capsule configured to hold a supercritical fluid. The apparatus may be used for growing crystals, e.g., GaN, under high temperature and pressure conditions.
Abstract: There is provided herein a one-part, moisture-curable, elastomeric, translucent coating composition comprising: (a) a di-hydroxy-terminated dimethylpolysiloxane polymer; (b) a reinforcing filler; (c) an organic solvent; (d) a polyalkoxysilane crosslinking agent; (e) an organo-silane adhesion promoter; and, (f) a titanium condensation cure catalyst, wherein the composition is a one-part, moisture-curable, elastomeric, translucent coating composition, and a process of making the composition.
Abstract: A resistance heater is shown and described. The resistance heater may include a body. The body may include at least one heating surface, the heating surface being generally smooth and generally flat and a recess formed in the body, at least a portion of the body having a cross-sectional shape selected from the group consisting of: generally U shape, generally I-shape, and generally H-shape, and where the cross-sectional shape extends along at least a portion of the body.
Abstract: A method for treating filler material includes contacting the filler material with a silane which, upon hydrolysis, produces substantially no significant amount of volatile organic compound and/or the hydrolyzate of the silane to provide a treated filler which can then be incorporated into a matrix to provide a composite body.
Abstract: There is provided herein a functionalized ionic silicone composition comprising a silicone of the formula (I): M1aM2bM3cD1dD2eD3fT1gT2hT3iQj??(I) which contains a monovalent radical bearing ion-pairs and having the formula (II): -A-Ix?Mny+; where A is a spacing group having at least 2 spacing atoms selected from a divalent hydrocarbon or hydrocarbonoxy group, where I is an ionic group such as sulfonate —SO3?, carboxylate —COO?, phosphonate —PO32? group and phosphate —OPO32?, where M is hydrogen or a cation independently selected from alkali metals, alkali earth metals, transition metals, metals, quaternary ammonium and phosphonium groups; or, zwitterions having the formula (III): —R?—NR?2+—R??—I??(III) where I is defined as above, and where the subscript a, b, c, d, e, f, g, h, i, j are zero or positive subject to the following limitations: 2?a+b+c+d+e+f+g+h+i+j?6000, b+e+h>0 and c+f+i>0.
Abstract: The present invention relates to a process for the manufacturing of continuously shaped cured silicone articles, particularly extrusions articles and the use of silicone compositions containing a photoactivatable metal catalyst in said process, wherein the curing is initiated by visible or UV-light.
Abstract: The present invention relates to chlorine resistant crosslinkable silane-containing polyolefin compositions and stabilizer masterbatch compositions, their preparation, and articles made therefrom. These crosslinkable silane-containing compositions contain a mixture of antioxidants, light absorbers and stabilizers that provide resistance to the levels of chlorine used in potable water and to light, thereby extending the useful life of said articles made therefrom, such as potable water pipes and valves, bottles, tanks, and the like.
Type:
Grant
Filed:
April 25, 2011
Date of Patent:
February 24, 2015
Assignee:
Momentive Performance Materials Inc.
Inventors:
Christine Lacroix, Philbert E. Ramdatt, Eric R. Pohl
Abstract: A method of preparing a curable polyorganosiloxane composition including kneading a uniform mixture of an alkenyl group-containing polyorganosiloxane, a polyorganohydrogensiloxane, and a platinum group metal compound, and defoaming the kneaded mixture under reduced pressure, the alkenyl group-containing polyorganosiloxane includes a linear polyorganosiloxane of the formula (I): , R is R1 or R2, and at least two Rs are R1; R1 is C2-C6 alkenyl; R2 is C1-C6 alkyl; and n is a value that yields a viscosity at 23° C. of 10 to 10,000 cPs, a branched polyorganosiloxane containing SiO4/2 and R?3SiO1/2 units, optionally a R?2SiO and/or a R?SiO3/2, R? represents a monovalent aliphatic or alicyclic, and at least three R? groups per molecule are alkenyls, the alkenyl group-containing polyorganosiloxane having a weight ratio of the branched to linear polyorganosiloxane of 1 to 5; and a number of hydrogens bonded to a silicon atom of the polyorganohydrogensiloxane exceeds 2.
Type:
Application
Filed:
October 27, 2014
Publication date:
February 12, 2015
Applicant:
MOMENTIVE PERFORMANCE MATERIALS JAPAN LLC
Abstract: An expandable polyurethane composition includes (A) polyisocyanate, (B) active hydrogen containing compound including (B1) polyol and (B2) water, a catalyst, and (C) one or more plasticizers selected from the group consisting of a monoester compound, a diester compound, a triester compound, and a tetraester compound by 0.5 to 20 parts by mass relative to 100 parts by mass of the (B1) polyol. A flexible polyurethane foam can be obtained of which wet set is improved and feeling is good.
Type:
Application
Filed:
October 22, 2014
Publication date:
February 12, 2015
Applicant:
MOMENTIVE PERFORMANCE MATERIALS JAPAN LLC
Inventors:
Hiroshi SOFUKU, Yuta OGAWA, Toshihisa NASA
Abstract: An expandable polyurethane composition includes (A) polyisocyanate, (B) active hydrogen containing compound including (B1) polyol and (B2) water, catalysts, and (C) cross-linking agent composition. The (C) cross-linking agent composition includes at least one kind of (C1) cross-linking agent selected from (CA) ethoxylate derivative having MW of 2000 or less and (CB) ester compound having MW of 2500 or less, and (C2) non-protic polar solvent, and a mass ratio ((a+b)/c) of a sum of content a of the (CA) ethoxylate derivative and content b of the (CB) ester compound relative to content c of the (C2) non-protic polar solvent is 1/10 to 10/1. A flexible polyurethane foam can be obtained of which wet set is improved and feeling is good.
Type:
Application
Filed:
October 22, 2014
Publication date:
February 5, 2015
Applicant:
MOMENTIVE PERFORMANCE MATERIALS JAPAN LLC
Inventors:
Hiroshi SOFUKU, Yuta OGAWA, Toshihisa NASA