| 摘要 |
The invention is directed to a golf ball comprising a core and a cover, wherein at least one of the core and the cover comprises about 10 wt % or greater of a renewable polymer composition comprising an ultra high molecular weight polyhydroxyalkanoate compound having the formula: —OCR1R2(CR3R4)nCO— wherein n is an integer, and wherein R1, R2, R3 and R4 are selected from the group comprising saturated and unsaturated hydrocarbon radicals, halo- and hydroxy-substituted radicals, hydroxy radicals, halogen radicals; nitrogen-substituted radicals, oxygen-substituted radicals, or hydrogen atoms. In one embodiment, the golf ball also comprises about 90 wt % or less of a non renewable polymer composition. The golf ball may also comprise an intermediate layer disposed about the core and adjacent the cover, wherein at least one of the core, the cover and the intermediate layer comprises the renewable polymer composition. The renewable polymer composition comprises at least one of a notched Izod impact strength of about 0.5 ft-lbs/inch or greater and a polydispersity of from about 1.0 to about 4.0. The at least one of the core and the cover or the intermediate layer may comprise a hardness of from about 50 Shore C to about 90 Shore C.
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