초록 ▼

The invention provides golf balls with a core and with one or more layers, preferably cover layers, formed of a saturated rubber/ionomer block copolymer comprising one or more neutral thermoplastic polymer blocks and one or more ionomeric blocks. The saturated rubber block is preferably polyisobutyl

The invention provides golf balls with a core and with one or more layers, preferably cover layers, formed of a saturated rubber/ionomer block copolymer comprising one or more neutral thermoplastic polymer blocks and one or more ionomeric blocks. The saturated rubber block is preferably polyisobutylene, and the ionomer block may be a cationomer block or an anionomer block. Various block cationomers comprising polyisobutylene (PIB) and poly(2-dimethylamino) ethyl methacrylate) (PDMAEMA) are preferred. The golf balls of the present invention have been found to provide improved scuff resistance while providing a greater coefficient of friction for improved spin and feel properties.

대표청구항 ▼

What is claimed is: 1. A golf ball comprising at least one core or layer, said core or layer comprising: a block copolymer ionomer comprising: a block of a saturated rubber compound comprising polyisobutylene and at least one ionomeric block connected to the block of saturated rubber compound.

What is claimed is: 1. A golf ball comprising at least one core or layer, said core or layer comprising: a block copolymer ionomer comprising: a block of a saturated rubber compound comprising polyisobutylene and at least one ionomeric block connected to the block of saturated rubber compound. 2. The golf ball according to claim 1 wherein the at least one ionomeric block comprises an anionomer. 3. The golf ball according to claim 2 wherein the anionomer comprises an acrylic acid salt. 4. The golf ball according to claim 3 wherein the acrylic acid salt comprises a poly(methacrylic acid) salt. 5. The golf ball according to claim 4 wherein the block copolymer ionomer is a polyisobutylene-block-poly(methacrylic acid) salt. 6. The golf ball according to claim 1 wherein the ionomeric block comprises cationomers. 7. The golf ball according to claim 6 wherein the cationomers comprise tertiary amines. 8. The golf ball according to claim 7 wherein the tertiary amines comprise quaternized poly (2-dimethylamino ethyl methacrylate). 9. The golf ball according to claim 8 wherein the block copolymer ionomer is polyisobutylene-block-quaternized poly (2-dimethylamino ethyl methacrylate). 10. The golf ball according to claim 1 wherein said layer is a cover layer. 11. A golf ball comprising at least one layer, said layer comprising a star polymer comprising: a star polymer core; and at least three arms; wherein each of the at least three arms comprises a block comprising an isobutylene monomer and a block of an anionomer. 12. The golf ball according to claim 11 wherein the anionomer comprises an acrylic acid salt. 13. The golf ball according to claim 12 wherein the acrylic acid salt is a poly (methacrylic acid) salt. 14. A golf ball comprising at least one layer, said layer comprising a star polymer comprising: a star polymer core, and; at least three arms; wherein each of the at least three arms comprises a block of a saturated rubber compound and a block of a cationomer connected to the block of saturated rubber compound. 15. The block copolymer ionomer according to claim 14 wherein the cationomer comprises amines. 16. The golf ball according to claim 15 wherein the amines comprise quaternized poly (2-dimethylamino ethyl methacrylate). 17. The golf ball according to claim 14 wherein the saturated rubber compound comprises polyisobutylene.