Crompton Gmbh

General Electric Company

Momentive Performance Materials Gmbh

Louis M Panzer

Henry L Mei

Philbert E Ramdatt

Robert E Christie

Eric Raymond Pohl

Antonio Chaves

Herbert E Petty

Prashant G Joshi

William D Sigworth

Lesley Hwang

Martin Hofstetter

Michael Stout

Roger A Cheney

Juan Alfonso

Leslie Hwang

Juan R Alfonso

A method for increasing the hardness of silica/rubber mixtures includes blending with the mixture at least one silane and a hardness-increasing amount of at least one member selected from the group consisting of thixotropic fumed silica, precipitated silica and an MQ resin, wherein Q is SiO, M is RRRSiO, and R,R,and Rare the same or different functional or non-functional organic groups, carbon black, a thermoplastic resin or a thermosetting resin.

Silica-rubber mixtures having improved hardness

A process for preparing a composite material is disclosed wherein the process comprises:

Natural fiber-filled polyolefin composites

The present invention is directed to a composition comprising a white pigment or extended white pigment surface treated with a silane having at least one functional group capable of reacting with acids and anhydrides, at least one polymeric material and a compatibilizer. Once treated, the pigment has improved processability and dispersibility in polymeric materials. Silanizing the pigment also enhances the brightness (increase whiteness and reduce yellowness) of the pigment.

Modified silane treated pigments or fillers and compositions containing the same

The present invention relates to the silanization or surface treatment of minerals with alkylsilanes and alkylsilane copolymers. More specifically, the present invention relates to alkylsilane copolymers useful for surface treating pigments or fillers. The alkylsilane copolymers comprise at least two different monomers. The copolymers find particular utility for the surface treatment of white pigments, such as titanium dioxide, for improving the dispersibility and processibility of the pigments when compounded with a polymeric material, in particular, when compounded with polyolefins.

Treatment of minerals with alkylsilanes and alkylsilane copolymers

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Ridgefield, CT, United States of America

Louis M Panzer