METHODE DE VULCANISATION LIBRE DE CAOUTCHOUC

摘要

1353334 Golf ball UNIROYAL Inc 9 July 1971 [25 Aug 1970] 32292/71 Heading A6D [Also in Division C3] A golf ball is prepared in Example 10 by (a) forming a masterbatch of polybutadiene and polypropylene at 340‹F, (b) blending the masterbatch with further polybutadiene at 270‹F, (c) mixing the product of (b) at 200‹F with silica, polyethylene, fillers, dicumyl peroxide and trimethylolpropane trimethacrylate, (d) injecting the final mixture into a dimpled mould, and (e) curing in a hot air oven.