| 摘要 |
<p>PURPOSE:To provide the title composition capable of injection molding, excellent in flexibility, impact resistance and resilience, esp. suitable as a raw material for golf ball cores. CONSTITUTION:A blend of (A) 50-97 pts.wt. of an ethylene-unsaturated carboxylic ester copolymer or its graft-modified product and (B) 50-3 pts.wt. of a rubbery polymer is dynamically crosslinked followed by ionization, thus giving the objective composition. Further incorporation of an elastic polar polymer (and inorganic filler) into the present composition will produce a resin composition improved in such physical properties as processability and hardness.</p> |
