发明名称 In-mold coating of golf balls
摘要 A method of applying a coating material, such as a urethane, to an outer dimpled surface of a golf ball by forming a first mold cavity between upper and lower mold dies configured and adapted for molding a golf ball, molding a golf ball having an outer dimpled surface within the first mold cavity under a first pressure greater than ambient pressure until the golf ball is sufficiently cured to receive a coating that will not substantially penetrate the outer dimpled surface of the ball, opening the first mold cavity and transferring the molded but uncoated golf ball to a second mold cavity, preparing an in-mold golf ball coating composition, introducing a sufficient amount of the coating composition into the second mold cavity between the outer dimpled surface of the golf ball and an inner surface of said second mold cavity to substantially surround and coat the outer surface of said golf ball, curing said coating composition to form a coated golf ball having at least one layer of said coating composition, and removing said coated ball from the second mold cavity so as to produce a coated golf ball having a dimple pattern thereon.
申请公布号 US6019921(A) 申请公布日期 2000.02.01
申请号 US19980097153 申请日期 1998.06.12
申请人 ACUSHNET COMPANY 发明人 LUTZ, MITCHELL E.
分类号 B29C45/14;A63B37/00;A63B37/12;A63B45/00;B29C37/00;B29C45/00;B29C67/24;B29D99/00;B29L31/54;(IPC1-7):B29C45/14 主分类号 B29C45/14
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