Solid golf ball

Details Solid golf ball Solid golf ball

1988-03-11

1989-08-22

Marlo, George J.

Amusement devices: games

Aerial projectile game; game element or accessory therefor...

Target

273218, 273220, 273230, 273235R, 273DIG22, A63B 3700

Patent

active

048589241

ABSTRACT:
Solid golf balls comprising a solid core and a cover which exhibit improved flying performance, controllability, repulsion, fatigue resistance, and hitting feel. The solid core is formed from a composition comprising a polybutadiene containing at least 40% of cis-1,4-bond and an unsaturated carboxylic acid and/or a metal salt thereof for causing crosslinking of the polybutadiene and having a deformation of 1.5 to 3.5 mm under a constant load of 100 kg, and the difference in hardness between the center and the periphery of said solid core is less than 10%; and the cover is formed from a thermoplastic resin composition comprising 97 to 65% by weight of an ionomer resin and 3 to 35% by weight of a flexible resin selected from the group consisting of polyester elastomers, polyamide propylene-butadiene copolymers, 1,2 polybutadienes, polybutiene-1, and sytrene-butadiene block copolymers and mixtures thereof, and having a resilience of at least 35%, and having a flexural modulus of 1,500 to 4,500 kg/cm.sup.2 and a thickness of 0.3 to 1.8 mm.

REFERENCES:
patent: 4141559 (1979-02-01), Melvin et al.
patent: 4274637 (1981-06-01), Molitor
patent: 4431193 (1984-02-01), Nesbitt
patent: 4546980 (1985-10-01), Gendreau
patent: 4570937 (1986-02-01), Yamada

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