Golf ball and manufacturing method of golf ball core

Details Golf ball and manufacturing method of golf ball core Golf ball and manufacturing method of golf ball core

1998-07-30

2000-03-21

Chapman, Jeanette

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

473264, 473239, 473373, 473374, 473376, 264250, 264267, 2642791, 264320, B29C 6500

Patent

active

060399104

ABSTRACT:
A golf ball core and a method of making the same wherein remarkable reduction of eccentricity of an inner layer to an outer layer is accomplished, and mass-production of the golfball cores are possible. The golfball inner layer is penetrated into at least a part of a seam portion of the outer layer. A volume of an intrusive portion of the inner layer into the outer layer is arranged to be 1/300 to 1/5 of a volume of the outer layer, suppose the outer layer is a complete spherical shell. To form a core, an unvulcanized material is semi-vulcanized or vulcanized to form an outer layer half shell whose configuration is generally a hemispherical shell, and an unvulcanized inner layer forming material is put between the pair of outer layer half shells and vulcanizing pressed.

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