Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1996-02-09
1999-10-05
Buttner, David
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525196, 525201, 473372, 473385, A63B 3712, C08L 3302, C08L 2308
Patent
active
059625902
ABSTRACT:
The present invention provides a golf ball having excellent controllability at the time of approach and excellent shot feel, wherein spin is easily put on. A cover of the golf ball is composed of a mixture of specific three ionomer resins (1), (2) and (3), wherein the total amount of the resin (1) and resin (2) is not less than 85% by weight and the amount of the resin (3) is not more than 15% by weight in the mixture as a main component, and wherein the amount of the resin (1) is 30 to 82% by weight and the amount of the resin (2) is 3 to 55% by weight in the total of the resin (1) and resin (2) and a stiffness of the cover composition is 1,000 to 2,000 kg/cm.sup.2.
REFERENCES:
patent: 3819768 (1974-06-01), Molitor
patent: 5298571 (1994-03-01), Statz
patent: 5328959 (1994-07-01), Sullivan
patent: 5490674 (1996-02-01), Hamada
patent: 5586950 (1996-12-01), Endo
Endo Seiichiro
Yokota Masatoshi
Buttner David
Sumitomo Rubber Industries Ltd.
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