Methods for making multi-layer golf balls using rigid uncrosslin

Details Methods for making multi-layer golf balls using rigid uncrosslin Methods for making multi-layer golf balls using rigid uncrosslin

1998-03-26

2000-07-25

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

To produce composite, plural part or multilayered article

264250, 2642791, 264320, 2643281, B29C 4318

Patent

active

060933577

ABSTRACT:
A multi-layer golf ball and methods for preparing a portion thereof including a core having at least one core layer, a mantle having at least one layer including an amount of reinforcing polymer component and a resilient polymer component disposed concentrically adjacent the core, and at least one cover layer disposed concentrically adjacent the mantle, wherein the layer of the mantle is sufficiently rigid to inhibit the resilient polymer component from substantially altering shape prior to crosslinking. The invention also includes an elastomeric composition including a polybutadiene having a high molecular weight average and a predominantly 1,4-cis content, a free-radical initiator, and a reinforcing polymer component having a sufficiently low viscosity at a mixing temperature to permit substantially uniform dispersion of the polymer component with the polybutadiene and having a crystalline melting point sufficiently low to permit mixing while avoiding substantial crosslinking.

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Definition of "Ellipsoid", Webster's III: New Riverside Univerisity Dictionary, p. 425, 1984.

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