Patent ID: 8007917
Filing Date: 2011-08-30
Classification: B32B,B65G,C08K,C08L,Y10T

Abstract:
1. A fire-resistant conveyor belt comprising: a first and second outer cover layer situated on the outer opposing surfaces of the conveyor belt, the first and second outer cover layers defining a non-halogenated rubber compound consisting of aluminum trihydrate, about 10 phr to about 60 phr of a phosphate plasticizer, carbon black, an antidegradant, optionally a silica filler, optionally a processing oil, optionally zinc oxide, optionally a wax, and a blend of rubbery polymers present in a total amount of 100 phr, the blend of rubbery polymers consisting of 30 phr to 70 phr of natural rubber and 30 phr to 70 phr of butadiene rubber, wherein the butadiene rubber consists of butadiene repeat units; and at least one reinforcement layer situated between the first cover layer and the second cover layer, wherein the conveyor belt is fire-resistant, and wherein the at least one reinforcement layer includes outer first and second skim layers on opposing surfaces of the reinforcement layers, the outer first and second skim layers being comprised of the non-halogenated rubber.