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US 5,981,658 AGranted
Golf ball incorporating grafted metallocene catalyzed polymer blends
AssigneeAcushnet Company
InventorsMurali Rajagopalan, Kevin M. Harris
Life of this patent
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AssigneeAcushnet Company
InventorsMurali Rajagopalan, Kevin M. Harris
Estimating the term…
The disclosed invention provides novel golf ball compositions which contain non-ionic olefinic copolymers produced by use of metallocene catalysts, wherein the metallocene catalyzed polymers have been functionalized with a post-polymerization reaction. The grafted metallocene catalyzed polymers may be blended with ionomers, non-grafted metallocene catalyzed polymers, or other non-ionomeric polymers. These compositions exhibit improved mechanical properties such as tensile and flexural properties, and can be foamed or unfoamed. Golf balls that employ at least one layer of these compositions in any of the golf ball cover, core, or a mantle situated between the cover and the core provide ball properties and performance similar to and in some cases better than the state of the art ionomer based golf balls.
A golf ball having at least one layer, the layer formed from a composition comprising at least one metallocene catalyzed polymer that has been functionalized by sulfonation, carboxylation, addition of an amine or hydroxy, or by grafting an ethylenically unsaturated monomer onto the at least one metallocene catalyzed polymer using a post-polymerization reaction.
A golf ball comprising a cover and a core and a mantle situated between the cover and the core, wherein at least one of the cover, the core, and the mantle comprises at least one layer, the layer formed of a grafted metallocene catalyzed polymer blend, comprising from about 1 to about 100 phr of at least one grafted metallocene catalyzed polymer and from about 99 to 0 phr of at least one ionomer.
Dependencies are inferred from the claim text.