Patent ID: 6395861
Filing Date: 2002-05-28
Classification: A63B,C08G,C09D

Abstract:
A game ball coating system comprising:a polyol which is a condensation product of (1) an organic acid which includes at least one member selected from the group consisting of adipic acid, phthalic acid and isophthalic acid, (2) an anhydride, and (3) a glycol which includes at least one member selected from the group consisting of ethylene glycol and trimethylol propane, a polyisocyanate which is present in a quantity appropriate to provide a ratio of â€”N&boxH;C&boxH;O equivalents to â€”OH equivalents in the range of 0.90:1 to 1.8:1, 20-65 wt % of a solvent based upon the weight of the coating system, and a catalyst, the catalyst being present in a concentration sufficient to cure a 3.5 mil thick layer of the coating system to a Sward rocker hardness of at least 10 in less than 10 minutes if the layer is cured at a temperature of about 100-180Â° F., the coating system providing a fully cured coating with a Sward rocker hardness (ASTM D2134-66) of 40-70.