Golf ball 2 has spherical core 4, cover 6 positioned outside the core 4, mark layer 8 and paint layer 10. The resin composition of the cover 6 includes composite particles. The composite particle has a nucleus and a coat layer. The nucleus is constituted with aluminum oxide. The coat layer is constituted...http://www.google.de/patents/US7976412?utm_source=gb-gplus-sharePatent US7976412 - Golf ball
