Golf ball having a polyurethane cover

Details Golf ball having a polyurethane cover Golf ball having a polyurethane cover

2005-12-13

2005-12-13

Buttner, David J. (Department: 1712)

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...

C528S064000, C528S076000, C473S372000, C473S373000, C473S374000, C473S378000

Reexamination Certificate

active

06974854

ABSTRACT:
A golf ball with a cover composed of a thermosetting polyurethane that has increased resistance to yellowing is disclosed herein. The golf ball of the present invention is able to accomplish this by providing a cover composed of a thermosetting polyurethane material formed from a polyurethane prepolymer and a curative composed of 20 to 40 parts 4,4′-methylenebis-(3-chloro,2,6-diethyl)-aniline and 80 to 60 parts diethyl 2,4-toluenediamine. The cover is preferably formed over a core and boundary layer.

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