Golf Balls Having Multi-Layered Covers Made From Plasticized Compositions Containing Non-Acid Polymers

摘要

Multi-layered golf balls containing a three-layered cover assembly are provided. For example, a cover assembly having an inner cover, intermediate cover, and outer cover layer may be prepared. At least one of the cover layers is formed from a thermoplastic composition that preferably comprises: a) thermoplastic non-acid polymer, and b) plasticizer. A fatty acid ester such as ethyl oleate is preferably used as the plasticizer. Suitable non-acid polymers include, for example, polyesters, polyamides, polyolefins, and polyurethanes. The cover assembly has good impact durability and helps provide the ball with relatively high resiliency at given compressions.

主权项

1. A golf ball, comprising:
i) a core having at least one layer; ii) an inner cover layer comprising a thermoplastic material, the inner cover layer being disposed about the core and having a Shore D midpoint hardness in the range of about 15 to about 60, the thermoplastic material comprising:
a) a thermoplastic non-acid polymer; andb) a plasticizer; iii) an intermediate cover disposed about the inner cover layer; and iv) an outer cover layer disposed about the intermediate cover layer and having a Shore D surface hardness in the range of about 45 to about 75, and wherein the hardness of the outer cover layer is greater than the hardness of the inner cover layer.