Patent ID: 8324317

Claim:
A golf ball comprising: a core having an overall diameter of from 1.30 inches to 1.62 inches and comprising an inner core and an optional outer core; a cover having a thickness of from 0.02 inches to 0.04 inches; and a casing layer disposed between the core and the cover and having a thickness of from 0.03 inches to 0.06 inches; wherein the casing layer is formed from a composition comprising a multi-block copolymer, and wherein the multi-block copolymer is produced by a process comprising contacting ethylene under addition polymerization conditions with a catalyst composition, the catalyst composition comprising the admixture or reaction product resulting from combining: (A) a first olefin polymerization catalyst, (B) a second olefin polymerization catalyst capable of preparing polymers differing in chemical or physical properties from the polymer prepared by the first olefin polymerization catalyst under equivalent polymerization conditions, and (C) a chain shuttling agent, wherein at least one of the first olefin polymerization catalyst or the second olefin polymerization catalyst is capable of forming a branched polymer by means of chain walking or reincorporation of in situ formed olefinic polymer chains.