Patent ID: 6291374
Filing Date: 2001-09-18
Classification: B32B,C08J,C08K,C08L,H05K,Y10T

Abstract:
An electrical circuit material, comprising:a substrate, which comprisesbased on the total substrate, about 10 vol % to about 75 vol % of a resin composition, the resin composition comprising a polybutadiene or polyisoprene resin, and based on the total resin composition, up to about 20 wt % of an ethylene propylene rubber having a weight average molecular weight of less than about 50,000 measured by gel permeation chromatography;between about 20 and about 60 PHR flame retardant;based on the total substrate, up to about 50 vol % fabric;based on the total substrate, up to about 65 vol % particulate filler; andan effective quantity of a peroxide curing agent; anda layer of conductive metal laminated to at least a portion of the substrate.