Golf ball

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...

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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.

REFERENCES:
patent: 3663514 (1972-05-01), Campbell
patent: 4062825 (1977-12-01), Watabe
patent: 4123061 (1978-10-01), Dusbiber
patent: 4248432 (1981-02-01), Hewitt
patent: 4858924 (1989-08-01), Saito
patent: 5497996 (1996-03-01), Cadorniga
patent: 5792008 (1998-08-01), Kakiuchi
patent: 5800286 (1998-09-01), Kakiuchi

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