Patent Number: 8,822,604

Title: Rubber composition for golf ball

Abstract: The invention provides a rubber composition for golf balls which includes: (A) a base rubber containing a polybutadiene having a cis-1,4 bond content of at least 60 wt %; (B) an unsaturated carboxylic acid and/or a metal salt thereof; (C) an anthranilic acid derivative of the general formula ##STR00001## wherein R.sup.1 and R.sup.2 are each independently a hydrogen atom or a hydrocarbon group of 1 to 20 carbons, m is an integer from 1 to 4, and n is an integer from 1 to 3, with the proviso that if m and/or n is 2 or more, each occurrence of R.sup.1 and R.sup.2 may be the same or different; and (D) sulfur. The rubber composition for golf balls of the invention enables a high-quality molded and crosslinked product having a suitable hardness and a high resilience to be obtained.

Inventors: Ozawa; Yuichiro (Chichibushi, JP), Nakajima; Tsuyoshi (Chichibushi, JP), Yamagata; Yusuke (Kodaira, JP), Mori; Teppei (Kodaira, JP), Iwai; Takahiro (Kodaira, JP)

Assignee: Bridgestone Sports Co., Ltd.

International Classification: C08C 19/22 (20060101); C08C 19/20 (20060101); A63B 37/06 (20060101); C08C 19/28 (20060101)

Expiration Date: 9/02/12018