Golf Ball with Scuff-Resistant Cover
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United States of America Patent
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N/A
Issued Date -
Oct 22, 2015
app pub date -
Apr 1, 2015
filing date -
Apr 17, 2014
priority date (Note) -
Abandoned
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Abstract
Scuff-resistant golf ball covers and methods of manufacturing golf balls are described. The cover is made of a thermoplastic polymeric portion including at least one first, high molecular weight copolymer of ethylene/5-12 percent by weight acrylic or methacrylic acid or both/5-40 percent by weight alkyl acrylate or methacrylate or both; optionally at least one second, low molecular weight copolymer of ethylene/3-25 percent by weight acrylic or methacrylic acid or both; and a high molecular weight dipolymer of ethylene/acrylic acid that has a molar fraction of the acrylic acid monomer units within ±about 10% of a molar fraction of the α,β-ethylenically unsaturated carboxylic acid monomer units of the at least one first copolymer. The acid groups of all acid monomer units are neutralized 30% to about 75% on a molar basis by magnesium cations, calcium cations, zinc cations, or a combination of these cations.
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