申请人:Callaway Golf Company
公开号:US20040116622A1
公开(公告)日:2004-06-17
A curative blend for a thermosetting polyurethane material that allows for a polyurethane material with greater durability is disclosed herein. The curative blend is preferably composed of N,N′-dialkylamino-diphenyl-methane in an amount of 25 to 75 parts per one hundred parts of the curative blend and 4,4″-methylenebis-(2,6-diethyl)-aniline in an amount of 25 to 75 parts per one hundred parts of the curative blend. A preferred polyurethane prepolymer is polytetramethylene ether glycol terminated toluene diisocyanate prepolymer. The thermosetting polyurethane is preferably utilized as a cover for a golf ball. The cover is preferably formed over a core and boundary layer.
本文公开了一种用于热固性聚氨酯材料的固化混合物,可使聚氨酯材料具有更高的耐久性。该混合固化剂优选由 N,N′-二烷基氨基二苯基甲烷和 4,4″-亚甲基双-(2,6-二乙基)-苯胺组成,其中 N,N′-二烷基氨基二苯基甲烷的用量为每 100 份混合固化剂中 25 至 75 份,4,4″-亚甲基双-(2,6-二乙基)-苯胺的用量为每 100 份混合固化剂中 25 至 75 份。优选的聚氨酯预聚物是聚四亚甲基醚二醇封端甲苯二异氰酸酯预聚物。热固性聚氨酯最好用作高尔夫球的外层。覆盖层最好形成于球芯和边界层之上。