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1. (WO2014193814) THERMOPLASTIC MULTI-LAYER GOLF BALL

Pub. No.:    WO/2014/193814    International Application No.:    PCT/US2014/039535
Publication Date: Fri Dec 05 00:59:59 CET 2014 International Filing Date: Wed May 28 01:59:59 CEST 2014
IPC: A63B 37/06
A63B 37/08
A63B 37/12
Applicants: NIKE INNOVATE C.V.
NIKE, INC.
Inventors: LIU, Chen-Tai
CHOU, Chien-Hsin
Title: THERMOPLASTIC MULTI-LAYER GOLF BALL
Abstract:
A thermoplastic multi-layer golf ball has a core center having a shell from about 1-6 mm thick defining an interior space about 12-24 mm in diameter, a core layer at least about 5 mm thick outward from the core center, and a cover. The shell includes a first thermoplastic material with first flexural modulus less than about 15,000 psi. The core layer includes a second thermoplastic material with second flexural modulus up to about 15,000 psi and greater than the first flexural modulus and a specific gravity of at least about 1.5 g/cm3. The cover includes a third thermoplastic material with a third flexural modulus that in a first embodiment is up to about 5,000 psi and less than the first flexural modulus and in a second embodiment is least about 40,000 psi.