Patent ID: 6723776
Filing Date: 2004-04-20
Classification: C08K,C08L,C09J,H02G

Abstract:
A low modulus polymer composition comprising:(A) at least one thermoplastic elastomer selected from the group consisting of a hydrogenated styrene-isoprene-styrene block copolymer, a hydrogenated styrene-butadiene-styrene block copolymer and a styrene-ethylene-ethylene-propylene-styrene block copolymer, (B) a rubber component containing an ethylene-propylene-diene rubber, and (C) a paraffin oil having a pour of not more than âˆ’35Â° C. as a softener, wherein the amount of the softener (C) is not less than 200 parts by weight based on 100 parts by weight of the total amount of the components (A) and (B) and at least portion of the rubber component (B) is crosslinked by dynamic crosslinking, and wherein the hardness of said low modulus polymer composition is not less than 10 when represented by the degree of penetration of a 1/1-sized cone into the material at 23Â° C. and is not more than 10 when represented by, Japan Industrial Standard (JIS) A Hardness.