Patent ID: 7754816

Claim:
A high heat resistant rubber composition, comprising: at least one chlorinated polyethylene elastomer comprising from about 20% to about 45% chlorine by weight, the total amount of the chlorinated polyethylene elastomer being about 70 parts by weight; at least one ethylene-octene copolymer comprising an octene content of from about 25% to about 55% by weight, the amount of the ethylene-octene copolymer being from about 5 to about 49 parts by weight per 70 parts by weight of the chlorinated polyethylene elastomer; and at least one ethylene-acrylic elastomer having a Mooney viscosity of from about 10 to about 25 and/or at least one polyacrylic elastomer having a Mooney viscosity of from about 10 to about 70, the total amount of the ethylene-acrylic elastomer and/or the polyacrylic elastomer being from about 5 to about 49 parts by weight per 70 parts by weight of the chlorinated polyethylene elastomer.