e copolymers and another polymer, for example a polyacrylate, a diene polymer or anethylene-propylene-diene terpolymer; and block copolymers of styrene, for example styrene-butadiene-styrene, styrene-isoprene-styrene, styrene-ethylene/butylene-styrene or styrene-ethylene/propylene-styrene, or acrylonitrile-ethylene-propylene-styrene(AES).6.