Multi-piece solid golf ball

Details Multi-piece solid golf ball Multi-piece solid golf ball

1997-10-28

1999-10-19

Marlo, George J.

Games using tangible projectile

Golf

Ball

473374, 273DIG22, A63B 3706

Patent

active

059679077

ABSTRACT:
The present invention provides a multi-piece solid golf ball having excellent durability, excellent shot feel when hitting and good productivity. The present invention relates to a multi-piece solid golf ball which includes a solid core having a inner core and at least one outer core layer formed on the inner core, and a cover covering the solid core, wherein the inner core and outer core are formed from the material obtained by dispersing rubber in an ionomer resin and dynamically vulcanizing it with a vulcanizing agent, wherein the rubber particles dispersed in the ionomer resin have a particle size of not more than 10 .mu.m, the outer core layer has a Shore D hardness of more than that of the inner core by 5 to 30, and a weight ratio of the ionomer resin to the rubber particles is within the range of 95:5 to 30:70.

REFERENCES:
patent: 4714253 (1987-12-01), Nakahara et al.
patent: 5253871 (1993-10-01), Viollaz
patent: 5439227 (1995-08-01), Egashira et al.
patent: 5688191 (1997-11-01), Cavallaro et al.
patent: 5733974 (1998-03-01), Yamada et al.

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