Polyurethane golf ball cover

Details Polyurethane golf ball cover Polyurethane golf ball cover

A - Human Necessities

63

B

18/122, 273/178

A63B 37/12 (2006.01) B29D 99/00 (2010.01) A63B 37/00 (2006.01) B29C 43/14 (2006.01) B29C 43/18 (2006.01) B29C 69/00 (2006.01) B29C 70/70 (2006.01) B29C 35/02 (2006.01) B29C 37/00 (2006.01)

Patent

CA 2009333

POLYURETHANE GOLF BALL COVER Abstract of the Disclosure A polyurethane covered golf ball is made by allowing the polyurethane cover stock material. to partially cure in an open mold and subsequently molding a golf ball product. The molding is done by first molding a smooth-surfaced golf ball product in a smooth-walled fixed-pin mold and then, in a second molding step, using a compression mold to impart dimples onto the smooth-surfaced golf ball product. Between the two molding steps an intermediate curing step is employed. The initial curing time in an open mold and the intermediate curing time between the two molding steps is minimized through the use of a sufficient amount of catalyst, by keeping the smooth mold at an elevated temperature, or by using the fast- reacting chemical components.

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