Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Reexamination Certificate
2006-11-14
2006-11-14
Buttner, David J. (Department: 1712)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
C525S074000, C525S078000, C525S079000, C525S090000, C525S093000, C525S299000, C473S372000, C473S373000, C473S378000, C473S385000
Reexamination Certificate
active
07135529
ABSTRACT:
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.
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Acushnet Company
Bingham & McCutchen LLP
Buttner David J.
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