Abstract: Substantially branched alkenyl silicone polymer compositions having on average at least two branching points per molecule provide laminate release compositions that provide releasable laminates against methyl and phenyl silicone pressure sensitive adhesives.
Abstract: Acetylenic maleates, fumarates and related derivative compounds are new compositions of matter having the formula:R.sub.1 O.sub.2 C--CH.dbd.CH--CO.sub.2 R.sub.2wherein R.sub.1 may be an organic moiety containing at least two carbon atoms triply bonded one to the other as:--C.tbd.C--and R.sub.2 may be hydrogen, an organic moiety, or R.sub.1 ; suitable for use as liquid injection molding inhibitors either singly or in combination with themselves or other liquid injection molding inhibitors when used for the process of liquid injection molding curable compositions enabling an increase in the size of articles manufactured therefrom, which new compositions of matter cure into the polymerizable or curable resins thereby creating new compositions of matter as cured resins from which said articles of manufacture are produced.
Type:
Grant
Filed:
November 12, 1997
Date of Patent:
July 27, 1999
Assignee:
General Electric Company
Inventors:
Philip J. McDermott, Michael J. O'Brien, Edward M. Jeram
Abstract: A composition comprising the hydrosilylation addition product of a linear alkenyl functionalized polyorganosiloxane and an M.sup.H Q resin and a low molecular weight silicone when subjected to a new particle size reduction process that includes flow induced shearing provides for components in personal care formulations that have improved spreadability and substance as a consequence of a unique particle size distribution.
Type:
Grant
Filed:
December 12, 1997
Date of Patent:
July 27, 1999
Assignee:
General Electric Company
Inventors:
Adam J. Horne, Donald S. Johnson, John A. Kilgour, Richard D. Wang
Abstract: The present invention provides novel vinyl containing organopolysiloxane elastomers which possess excellent low compression set and heat aging characteristics and which can advantageously be formulated into liquid silicone elastomer moldable compositions.
Type:
Grant
Filed:
October 16, 1997
Date of Patent:
July 27, 1999
Assignee:
General Electric Company
Inventors:
Brian John Ward, Edward Matthew Jeram, Richard Albert Striker
Abstract: Acetylenic maleates, fumarates and related derivative compounds are new compositions of matter having the formula:R.sub.1 O.sub.2 CCH.dbd.CH--O.sub.2 R.sub.2wherein R.sub.1 may be an organic moiety containing at least two carbon atoms triply bonded one to the other as:--C.tbd.C--and R.sub.2 may be hydrogen, an organic moiety, or R.sub.1 ; suitable for use as liquid injection molding inhibitors either singly or in combination with themselves or other liquid injection molding inhibitors when used for the process of liquid injection molding curable compositions enabling an increase in the size of articles manufactured therefrom, which new compositions of matter cure into the polymerizable or curable resins thereby creating new compositions of matter as cured resins from which said articles of manufacture are produced.
Type:
Grant
Filed:
November 12, 1997
Date of Patent:
July 13, 1999
Assignee:
General Electric Company
Inventors:
Philip J. McDermott, Michael J. O'Brien, Edward M. Jeram
Abstract: The present invention relates to the use of a thin fluorosilicone elastomer coating as a cost effective solution to the oil weepage problem while retaining the sealing advantages of silicone rubber.
Type:
Grant
Filed:
April 10, 1998
Date of Patent:
July 6, 1999
Assignee:
General Electric Company
Inventors:
Richard Paul Eckberg, Edwin Robert Evans, Melvin Richard Toub
Abstract: A process for treating fillers, preferably precipitated silica, to improve the physical property profile of heat curable and room temperature vulcanizable silicone rubbers and a composition for room temperature vulcanizable rubbers comprising the silica filler treated by the process of the invention.
Abstract: A polyfluoroalkyl silicone having the general formula:M.sub.a M'.sub.b D.sub.c D'.sub.d T.sub.e T'.sub.f Q.sub.g ;whereM=R.sup.1.sub.u R.sup.2.sub.v R.sup.3.sub.w SiO.sub.1/2 with the sum of the subscripts u+v+w being 3 and the subscripts v and w are each independently 0 or 1;M'=R.sup.4 R.sup.5 R.sup.6 SiO.sub.1/2 ;D=R.sup.7.sub.x R.sup.8.sub.y SiO.sub.2/2 with the sum of the subscripts x+y being 2 and y is 0 or 1;D'=R.sup.9 R.sup.10 SiO.sub.2/2 ;T=R.sup.11.sub.z SiO.sub.3/2 with the subscript z being 1;T'=R.sup.12 SiO.sub.3/2 ; andQ=SiO.sub.4/2 ;where the substituent groups R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.8, R.sup.9, R.sup.10, and R.sup.12 are each independently selected from the group of one to forty carbon atom monovalent hydrocarbon radicals, the subscripts a, b, c, d, e, f, and g are zero or positive integers with the substituent groups, R.sup.1, R.sup.7, and R.sup.11, each independently selected from the group of consisting of monovalent polyfluoroalkyl groups having the formula CF.
Abstract: The present invention provides novel vinyl containing organopolysiloxane elastomers which possess excellent low compression set and heat aging characteristics and which can advantageously be formulated into liquid silicone elastomer moldable compositions.
Type:
Grant
Filed:
October 20, 1997
Date of Patent:
January 26, 1999
Assignee:
General Electric Company
Inventors:
Brian J. Ward, Edward M. Jeram, Richard A. Striker
Abstract: A polyfluoroalkyl silicone having the general formula:M.sub.a M'.sub.b D.sub.c D'.sub.d T.sub.e T'.sub.f Q.sub.g ;whereM=R.sup.1.sub.u R.sup.2.sub.v R.sup.3.sub.w SiO.sub.1/2 with the sum of the subscripts u+v+w being 3 and the subscripts v and w are each independently 0 or 1;M'=R.sup.4 R.sup.5 R.sup.6 SiO.sub.1/2 ;D=R.sup.7.sub.x R.sup.8.sub.y SiO.sub.2/2 with the sum of the subscripts x+y being 2 and y is 0 or 1;D'=R.sup.9 R.sup.10 SiO.sub.2/2 ;T=R.sup.11.sub.z SiO.sub.3/2 with the subscript z being 1;T'=R.sup.12 SiO.sub.3/2 ; andQ=SiO.sub.4/2 ;where the substituent groups R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.8, R.sup.9, R.sup.10, and R.sup.12 are each independently selected from the group of one to forty carbon atom monovalent hydrocarbon radicals, the subscripts a, b, c, d, e, f, and g are zero or positive integers with the substituent groups, R.sup.1, R.sup.7, and R.sup.11, each independently selected from the group of consisting of monovalent polyfluoroalkyl groups having the formula CF.
Abstract: This invention provides a coating composition which utilizes a free radical initiator and an organic tintability additive which remains substantially unpolymerized even after the remainder of the coating composition is cured. Superior tintability and adhesion to polycarbonate makes this coating particularly suitable for making tinted opthalmic lenses.
Type:
Grant
Filed:
January 10, 1997
Date of Patent:
October 27, 1998
Assignee:
General Electric Company
Inventors:
George F. Medford, Gregory R. Gillette, Norio Sato
Abstract: A gel-free silica acrylate curable coating composition made from one or more of soluble salts, soaps, amines, nonionic and anion surfactants, acids or mixtures thereof, and a method for producing these compositions.
Abstract: Low viscosity MQ silicone resins as a composition of matter, methods of preparation of same and cosmetic and personal care products comprising said MQ resins.
Type:
Grant
Filed:
July 15, 1997
Date of Patent:
October 6, 1998
Assignee:
General Electric Company
Inventors:
Marianne D. Berthiaume, Peter M. Miranda
Abstract: A process for removing contaminating solvents from solutions containing solid solutes comprising contacting a co-solvent that forms an azeotrope with the contaminating solvent forming a mixture thereby and spray drying the contaminating solvent co-solvent mixture in the presence of the co-solvent at a temperature equal to or above the temperature where the azeotrope distills whereby the contaminating solvent has been azeotropically distilled away from the solute. The process is particularly useful for polymeric solutes, especially silicones.
Type:
Grant
Filed:
January 13, 1997
Date of Patent:
October 6, 1998
Assignee:
General Electric Company
Inventors:
Jeffrey H. Wengrovius, Richard W. Green, Clayton B. Quinn
Abstract: Carbinol functionalized silicones provide improved release properties to epoxy silicone photo-curable release compositions, by co-photo-curing with the epoxy functionalized silicone.
Abstract: The present invention provides a novel method of rendering a wallboard water-repellent comprising applying to the wallboard a water-repellent composition comprising a hydrogen siloxane component and a high molecular weight silicone.
Type:
Grant
Filed:
February 18, 1997
Date of Patent:
September 29, 1998
Assignee:
General Electric Company
Inventors:
James Hale Merrifield, Donna Ann Riccio
Abstract: Condensation curable silicone mold making compositions containing an olefin or acetylene polymerization inhibitor have a longer useful life for making casts from curable resins comprising a polymerizable olefin relative to compositions where such a polymerization inhibitor is absent. Particularly preferred polymerization inhibitors are the esters of thiodipropionic acid and silicon polysulfides.
Type:
Grant
Filed:
January 21, 1997
Date of Patent:
September 29, 1998
Assignee:
General Electric Company
Inventors:
John J. Fitzgerald, Bruce C. Kuhl, Philip J. McDermott, Robert A. Smith