发明授权
US07566488B2 Surface material for ball and ball 有权
球和球的表面材料

Surface material for ball and ball
摘要:
A skin material for balls which is a sheet-form material comprising a base layer and formed on one side there of a coating layer made of a polymeric elastomer, characterized in that (1) the coating layer is composed of three layers (C-1), (C-2), and (C-3) disposed in this order from the surface side, (2) the layer (C-3) on the base layer side is made of a porous polymeric elastomer, (3) the layer (C-1) on the surface side is made of a polymeric elastomer containing a pressure-sensitive adhesive, and (4) the coating layer comprises one or more polymeric elastomers which have or do not have fine through-holes extending from the surface side to the base layer; and a ball having the skin material bonded to the surface. The skin material for ball-game balls brings about excellent wet gripping and is excellent also in wearing resistance and impact absorption.
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