Title: Bowling ball

Abstract: A bowling ball has a surface made from a material containing a minor quantity of functionally terminated liquid elastomer combined with a major quantity of resin-forming material reactive with the functional end groups of the elastomer, and has a greatly enhanced coefficient of friction against ordinary bowling lane surfaces, permitting superior control of the path of the ball and therefore better scores by the bowler. Such surface compositions are preferably made from a liquid polyester resin of the type which is hardenable by a peroxide, with addition of a liquid vinyl-terminated diene polymer or copolymer in a quantity amounting to about 10% to 35% of the mixture.

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Inventors: Randolph, John L. (Akron, OH, US)

Application Number: 850915
Filing Date: 1977-11-14
Publication_date: 1978-12-26
Assignee:
Primary Class(es): 473/125 264/254, 264/255, 428/218, 428/480
Other Classes:
US Patent Ref:

3206201	Sep, 1965	Hendricks	273/63R.
3248113	Apr, 1966	Baggenstoss et al.	273/63.
3256018	Jun, 1966	Baggenstoss	273/63.
3350252	Oct, 1967	Twickler	264/254.
3703571	Nov, 1972	Roberts	264/255.
3865369	Feb, 1975	Randolph	273/63.

Other Refs:
Primary Examiner: Van Balen, William J.
Assistant Examiner:
Attorney: Meyer; Harold S.