Patent ID: 6365069
Filing Date: 2002-04-02
Classification: B29C,B29L,C08F,C08K,C08L,H01M,Y02E

Abstract:
A process for molding a product from a composition in an injection molding apparatus having a feed throat which feeds a shot of composition into a mold, said composition comprising;a) an unsaturated prepolymer resin which comprises one or more of unsaturated polyester and vinyl ester resin; b) an unsaturated material copolymerizable with said resin and including a terminal ethylene group; c) an inorganic particulate conductive filler in an amount sufficient to provide a bulk conductivity of at least 40 S/cm to the resulting product; and d) an initiator to initiate said copolymerization; and wherein the composition is ported directly into the feed throat by an auger which has a vertical component to its positioning relative to the plane of the injection molding apparatus, and said shot is fed into the mold by a phenolic screw within the feed throat.