Golf ball

Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Particulate matter

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Details

5253302, 525196, 525221, 273235R, B32B 2728, A63B 3712, C08L 3302, C08F22006

Patent

active

050681516

ABSTRACT:
Disclosed is a golf ball having improved impact resilience, which comprises a core and a cover covering the core, wherein the cover is a lithium neutralized ionomer resion which is a copolymer of 10 to 20% by weight of an alpha, beta-unsaturated carboxylic acid and the rest of ethylene, of which 20 to 70 mol % of carboxyl groups are neutralized with lithium ion, and the ionomer resin has a melt index of 0.5 to 5.0 and a shore D hardness of at least 60. The lithium neutralized ionomer resin may be combined with a di- or tri- valent metal neutralized ionomer resin which is a copolymer of 10 to 20% by weight of an alpha, beta-unsaturated carboxylic acid and the rest of ethylene, of which 40 to 70 mol % of carboxyl groups are neutralized with di- or tri- valent metal ion, and which has a melt index of 0.5 to 5.0 and a shore D hardness of 60 to 80.

REFERENCES:
patent: 3264272 (1966-08-01), Rees
patent: 3819768 (1974-06-01), Molitor
patent: 4911451 (1990-03-01), Sullivan et al.
Research Disclosure-Kenneth Mason Publications #27221-"Golf Balls Based on Li Ionomers . . . " 12/1986.

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