Other

General Electric Company

Greg R Bradtke

Kenneth G Powell

Robert H Wildi

Jack A Hill

John Robert Campbell

William David Richards

Jack Lew Little

Catherine Marie Pottier-Metz

Linda McAdam Gemmell

Vinod Kumar Berry

There is provided a process for making a gel-containing additive concentrate by mixing a reactive polymer such as SAN and a substantially immiscible carrier polymer such as polycarbonate or polystyrene and reactively extruding the reactive polymer and carrier polymer in the presence of a multi-functional crosslinking agent and catalyst

Dispersive reactive extrusion of polymer gels

Gels useful as low gloss additives for blends of addition polymers, such as ABS resins, with polycarbonates are prepared by a melt blending operation in which a polyepoxide such as 3,4-epoxycyclohexyl 3,4-epoxycyclohexanecarboxylate is blended with at least one addition polymer such as a styrene-acrylonitrile copolymer, and concurrently with at least one aromatic polycarbonate in at least two increments. The first increment comprises about 20-60% of total polycarbonate and the second increment is subsequently introduced.

Production of low gloss additives for thermoplastic resins

Growing community of inventors

Ballston Spa, NY, United States of America

Greg R Bradtke