General Electric Company

Brian J Ward

Edward M Jeram

Richard A Striker

David A Williams

Paul R Willey

Chris A Sumpter

Donald S Johnson

Philip J McDermott

Robert A Smith

Donald A Martin

Lawrence M Wichelns

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.

Low compression set silicone elastomers

Secondary contact adhesion or self-bonding in cured liquid injection molding silicone compositions is reduced by the inclusion in the composition of an inhibitor compound selected from the group consisting of phenyl fluids, titanate esters, and silicate esters.

Heat curable elastomeric compositions

Low molecular weight, high alkenyl content silicone resins of the general formula M.sub.y M.sup.vi.sub.z D.sub.a D.sup.vi.sub.b T.sub.c T.sup.vi.sub.d Q or M.sub.y M.sup.vi.sub.z D.sub.a D.sup.vi.sub.b T.sub.c T.sup.vi.sub.d are disclosed, their use in curable liquid injection molding compositions, a process for varying the cure properties of such compositions and articles of manufacture made thereby and therewith.

Low molecular weight liquid injection molding resins having a high vinyl

Cold processable heat curable alkenyl silicone rubbers that comprising an alkenyl silicone gum or mixture of alkenyl silicone gums selected from the group of alkenyl silicone gums having the formula:

Heat cured rubbers

An extrudable composition formed of a blend of a polymer and a finely divided filler is prepared by combining the materials under conditions of high shear forces resulting in a composition which when diluted to a selected level has an application rate which is relatively higher than a composition having the same relative proportions of polymer and filler combined under conditions of low shear, the high shear forces reducing the aggregate size. The invention is also directed to a method for reducing the initial average aggregate size of a filler dispersed in a polymer by subjecting the mixture to high shear forces in a high intensity mixer.

High application rate extrudable polymers and method of manufacture

The present invention provides an improved heat curable silicone composition, having increased tear strength, oil resistance, and reduced compression set, comprising (A) a blend containing (1) a vinyl-containing organopolysiloxane or vinyl-containing organopolysiloxane blend having a viscosity of about 5,000 to about 500,000 centipoise at 25.degree. C., and (2) a vinyl-containing organopolysiloxane or vinyl-containing organopolysiloxane blend having a viscosity of about 8,000,000 to about 100,000,000 centipoise at 25.degree. C; (B) an organopolysiloxane resin copolymer; (C) an organic peroxide catalyst; (D) a filler; and (E) an organohydrogenpolysiloxane.

Heat curable silicone rubber compositions

There is provided an organopolysiloxane composition having low compression set as well as fuel and oil resistance in addition to high strength, good elongation, and tear comprising:

Low compression set, oil and fuel resistant, liquid injection moldable,

There is provided a polymer alloy composition comprising:

Polymer alloys

There is provided a compatibilizer comprised of essentially linear molecules terminated with an unsaturated radical on one end and a condensable radical on the other end and represented by general formula:

Growing community of inventors

Valley Falls, NY, United States of America

Brian J Ward