ゴルフボールコアの製造方法

Japanese Patent JP3639534

B2

The invention includes methods of forming at least a portion of a golf ball core, and the golf balls prepared thereby, by mixing a resilient polymer component, a free radical initiator system, and a crosslinking agent to provide a first mixture, forming the first mixture into a plurality of shells having a desired shape, first heat curing the shells at a temperature to impart a rigidity sufficient to maintain the desired shape until the shells are assembled and subsequently heat cured, quenching the first heat curing by reducing the shell temperature to inhibit crosslinking while a sufficient amount of free radical initiator system is present to facilitate a second heat curing, providing a center, assembling at least two shells concentrically about the center to form a first mantle layer, wherein the first mantle layer and center together form the ball core, and second heat curing the core at a temperature and for a time sufficient to further crosslink the first mixture and to at least partially crosslink the shells, thereby forming a cured golf ball core.

Rad Derek Ray
Rats Michelle E

JP2000567362A

April 20, 2005

September 02, 1999

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ACUSHNET COMPANY

A63B37/00; A63B45/00; B29C43/14; B29C43/18; B29C43/52; B29C63/22; C08J3/24; C08K3/00; C08K5/103; C08K5/14; C08L101/00; B29K9/00; B29K105/24; B29L31/54; (IPC1-7): A63B45/00; A63B37/00; B29C43/52; C08K3/00; C08K5/103; C08K5/14; C08L101/00

JP62073932A
JP48078260A
JP62122684A
JP61071070A
JP51092225A

Minoru Nakamura
Fumiaki Otsuka
Sadao Kumakura
Shishido Kaichi
Hideto Takeuchi
Toshio Imajo
Nobuo Ogawa
Village shrine Atsuo
Takaki Nishijima
Atsushi Hakoda
Kenji Asai

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