Patent ID: 6559226
Filing Date: 2003-05-06
Classification: A63B,C08L

Abstract:
A golf ball comprising center and a cover disposed thereon, wherein at least a portion of the center comprises an anionic polymer comprising repeat units of formula Ia: wherein R1 is OH, OC(O)R5, Oâˆ’M+V, (CH2)nRb, (CHRz)nRb, or aryl, wherein n is at least 1, R5 is a lower alkyl, M is a metal ion, V is an integer from 1 to 5, Rb is OH, OC(O)R5, Oâˆ’M+V and R2 is a lower alkyl or aryl, R2, R3 and R4 are each independently selected from the group consisting of hydrogen, straight-chain or branched-chain lower alkyl, and substituted alkyl in which one or more hydrogen atoms is replaced by a substituent selected from the group consisting of COOH, SO3H, NH2, or a lower alkyl substituted or di-substituted amine, halogen, OH, SH, silicone, and lower alkyl ether.