Patent ID: 7939175

Claim:
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 layers defining a non-halogenated rubber compound consisting of aluminum trihydrate, about 10 phr to about 60 phr of a phosphate plasticizer, and a blend of rubber polymers present in a total amount of 100 phr, the blend of rubbery polymers consisting of natural rubber and polybutadiene rubber; wherein the natural rubber is present in the blend at a level which is within the range of about 30 phr to about 70 phr, and wherein the blend of rubbery polymers is void of nitrile-group containing polymers, 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 reinforcements layers, the outer first and second skim layers being comprised of the non-halogenated rubber.