Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From reactant having at least one -n=c=x group as well as...
Patent
1997-04-03
1999-07-27
Buttner, David
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From reactant having at least one -n=c=x group as well as...
528 83, 473371, 473374, 473377, 473378, A63B 3712
Patent
active
059291893
ABSTRACT:
A golf ball comprises a core and a cover enclosing the core. The cover resin is composed mainly of a thermoplastic polyurethane elastomer having an aliphatic diisocyanate component and exhibiting a tan .delta. peak temperature of not higher than -20.degree. C. in viscoelasticity measurement.
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Ichikawa Yasushi
Kashiwagi Shunichi
Bridgestone Sports Co. Ltd.
Buttner David
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