Games using tangible projectile – Golf – Ball
Patent
1994-07-26
1996-08-06
Marlo, George J.
Games using tangible projectile
Golf
Ball
A63B 3706, A63B 3712
Patent
active
055426638
ABSTRACT:
A thread wound golf ball comprising a solid center, a thread rubber layer provided on the outside of the solid center and a cover for covering the thread rubber layer, wherein said center has a strain of 0.5 to 5 mm when 500 g weight is loaded on the solid center and is composed of an inner rubber portion, and said inner rubber portion has a crosslinked rubber structure, formed from a composition comprising 100 parts by weight of a base rubber and 30 to 500 parts by weight of an oily substance, whereby bleeding of the oily substance is prevented, wherein said oily substance is selected from the group consisting of petroleum compounded oil, plasticizer, rubber substitute, alkylbenzene, liquid rubber and a mixture thereof; and wherein said oil-resistant substance is selected from the group consisting of ionomer resin, acrylonitrile-butadiene rubber, chloroprene rubber, urethane rubber, fluorosilicone rubber and a mixture thereof.
REFERENCES:
patent: 1080592 (1913-12-01), Saunders
patent: 2542356 (1951-02-01), Radford
Kato Akira
Yabuki Yoshikazu
Marlo George J.
Sumitomo Rubber Industries Ltd.
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