Two-piece solid golf balls

Details Two-piece solid golf balls Two-piece solid golf balls

1977-06-16

1979-10-02

Lieberman, Allan

Amusement devices: games

Board games, pieces, or boards therefor

Rotatably mounted board

273235R, 260 4232, 260 4247, 260 4253, 26099814, A63B 3702, A63B 3712

Patent

active

041695992

ABSTRACT:
Two-piece solid golf balls having an improved initial velocity are disclosed. The core is obtained by curing a composition comprising (a) 100 parts by weight of polybutadiene, (b) 9-20 parts by weight of a polyfunctional unsaturated ester, (c) 5-10 parts by weight of methacrylic acid and/or acrylic acid, the total amount of the ingredients (b) and (c) being 15-30 parts by weight and the weight ratio of the ingredient (b)/the ingredient (c) being 55/45-80/20, (d) 20-80 parts by weight of a zinc compound and (e) 0.5-5 parts by weight of an alkyl peroxide. The cover comprises (f) 100 parts by weight of a metal salt of a copolymer of ethylene and unsaturated carboxylic acid, said metal salt having a loss tangent of lower than 0.08, and (g) 1-5 parts by weight of an inorganic filler.

REFERENCES:
patent: 3454280 (1969-07-01), Harrison et al.
patent: 3819768 (1974-06-01), Molitor
patent: 3940146 (1976-02-01), Little
patent: 3974238 (1976-08-01), Schweiker et al.
patent: 4056269 (1977-11-01), Pollitt et al.
patent: 4065537 (1977-12-01), Miller et al.
patent: 4068849 (1978-01-01), Di Salvo et al.

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