▎ 摘　　要

NOVELTY - Golf ball 10 has core 12a comprising 0.1-5.0 wt.% polybutadiene material and graphene masterbatch, where the graphene masterbatch material comprises 0.1-80.0 wt.% graphene. The graphene masterbatch material mixed with 99.9-20 wt.% carrier polymer, where the graphene material has a surface area ranging from 150 m2/g to 1000 m2/g. An inner mantle layer 14a is disposed over the core, where inner mantle has Shore D hardness ranging from 35-77 and thickness ranging from 0.025 inch to 0.050 inch, and outer mantle layer 14b is disposed over the inner mantle layer, and outer mantle layer comprises blend of ionomers, having a Shore D hardness ranging from 55-75, and thickness ranging from 0.025 inch to 0.040 inch. The ball further comprises cover layer 16 is disposed over the outer mantle layer. USE - Golf ball. ADVANTAGE - The golf ball has good durability due to the use of nanofillers such as graphene in a well dispersed form. DETAILED DESCRIPTION - Golf ball 10 has core 12a comprising 0.1-5.0 wt.% polybutadiene material and graphene masterbatch, where the graphene masterbatch material comprises 0.1-80.0 wt.% graphene. The graphene masterbatch material mixed with 99.9-20 wt.% carrier polymer, where the graphene material has a surface area ranging from 150 m2/g to 1000 m2/g. An inner mantle layer 14a is disposed over the core, where inner mantle has Shore D hardness ranging from 35-77 and thickness ranging from 0.025 inch to 0.050 inch, and outer mantle layer 14b is disposed over the inner mantle layer, and outer mantle layer comprises blend of ionomers, having a Shore D hardness ranging from 55-75, and thickness ranging from 0.025 inch to 0.040 inch. The ball further comprises cover layer 16 is disposed over the outer mantle layer. The carrier polymer material is selected from polyisoprene, polyisobutylene, ethylene propylene diene monomer (EPDM), polyethylene ionomer, maleic anhydride functionalized polyethylene, styrene butadiene rubber, styrene isoprene rubber, or butyl rubber. DESCRIPTION OF DRAWING(S) - The drawing shows exploded partial cut-away view of a golf ball. 10Golf ball 12aInner core 14aInner mantle layer 14bOuter mantle 16Cover layer