Use of metal carbamate accelerator in peroxide-cured golf ball center formulation
AssigneeSpalding & Evenflo Companies, Inc.
InventorMichael J. Sullivan
Life of this patent
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Abstract
Golf balls exhibiting a satisfactory coefficient of restitution while having higher Riehle compression and hence a softer feel are provided by the inclusion of a metallic dithiocarbamate in the core formulation.
Claims24
An improved core composition for a golf ball exhibiting a high coefficient of restitution, said composition comprising an elastomer selected from polybutadiene and mixtures of polybutadiene with other elastomers, at least one metallic salt of an alpha,beta-ethylenically unsaturated monocarboxylic acid, a free radical initiator and a metallic dithiocarbamate having the formula:
- ##STR2## wherein R, is lower alkyl having from 1 to 5 carbon atoms, Me is a cation having a valence of from 2 to 4 and and x is an integer having a value equal to the valence of said cation, said dithiocarbamate present in said composition in an amount of from about 0.1 to about 0.5 parts by weight, based on 100 parts of said elastomer.
A golf ball comprising a molded, spherical core and a cover therefor,
- said core comprising an elastomer selected from polybutadiene and mixtures of polybutadiene with other elastomers, said elastomer crosslinked with at least one metallic salt of an alpha,beta-ethylenically unsaturated monocarboxylic acid and from about 0.1 to about 0.5 parts by weight, based on 100 parts of said elastomer, of a metallic dithiocarbamate of the formula:
- ##STR3## wherein R, is lower alkyl having from 1 to 5 carbon atoms, Me is a cation having a valence of from 2 to 4 and x is an integer having a value equal to the valence of said cation.
Dependencies are inferred from the claim text.