Golf ball cover having an ionic copolymer/non-ionic copolymer blend
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United States of America Patent
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Mar 14, 1995
Issued Date -
N/A
app pub date -
Feb 23, 1993
filing date -
Sep 3, 1991
priority date (Note) -
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Abstract
The present invention is directed to a golf ball cover comprising a blend of copolymers wherein one or more of the copolymers is a low cost nonionic copolymer and one or more of the copolymers is an ionic copolymer. Surprisingly, a golf ball cover comprising the non-ionic/ionic copolymer blend exhibits no loss in C.O.R., and has equal resistance to cutting and cracking when compared to top grade golf ball covers made with one of the conventional 100% ionic copolymer blends. In particular, the present golf ball cover comprises from about 95 to about 80 pphr of one or more ionic copolymers, and from about 5 to about 20 pphr of one or more non-ionic copolymers, the latter being selected from the group consisting of a copolymer of ethylene and acrylic acid, a copolymer of ethylene and methacrylic acid, a copolymer of polypropylene and acrylic acid, a terpolymer of ethylene, acrylic acid and a lower alkyl acrylate, and a terpolymer of ethylene, methacrylic acid and a lower alkyl acrylate, and blends thereof.
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