Patent ID: 6653402
Filing Date: 2003-11-25
Classification: C08F,C08L

Abstract:
A golf ball comprising as a constituent component a part formed from a resin composition comprising:(A) 5 to 95% by weight of a polyester block copolymer comprising as main constituents (a1) high melting, crystalline polymer segments composed of crystalline aromatic polyester units and (a2) low melting polymer segments composed of aliphatic polyether units and/or aliphatic polyester units, (B) 95 to 5% by weight of an ionomer resin in the form of a copolymer comprising as main constituents (b1) an &agr;-olefin and (b2) an &agr;,&bgr;-unsaturated carboxylic acid having 3 to 8 carbon atoms, which is neutralized with (b3) at least one metal ion selected from among mono- to trivalent metal ions, the amount of components (A) and (B) combined being 100 parts by weight, (C) 1 to 40 parts by weight of a polyester-aromatic vinyl copolymer block copolymer comprising (c1) blocks of polyester and (c2) blocks of at least one type selected from among a block copolymer of an aromatic vinyl monomer with a conjugated diene, a random copolymer of an aromatic vinyl monomer with a conjugated diene, and hydrogenated products of these copolymers, and (D) 0.01 to 10 parts by weight of an epoxy-modified graft polymer comprising an olefin polymer backbone and vinyl polymer pendants.