Invention Grant
- Patent Title: Golf ball cores having foam center and polymeric outer layers with hardness gradients
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Application No.: US14982574Application Date: 2015-12-29
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Publication No.: US09694244B2Publication Date: 2017-07-04
- Inventor: Michael J. Sullivan , Mark L. Binette , Brian Comeau , Douglas S. Goguen , Michael Michalewich , Shawn Ricci
- Applicant: Acushnet Company
- Applicant Address: US MA Fairhaven
- Assignee: Acushnet Company
- Current Assignee: Acushnet Company
- Current Assignee Address: US MA Fairhaven
- Agent Daniel W. Sullivan
- Main IPC: A63B37/02
- IPC: A63B37/02 ; A63B37/00

Abstract:
Multi-layered golf ball core sub-assemblies and the resulting golf balls are provided. The core structure includes an inner core (center) comprising a foam composition, preferably foamed polyurethane. The intermediate core layer is preferably formed from a thermoplastic composition such as an ethylene acid copolymer ionomer resin; and the outer core layer is preferably formed from a thermoset composition such as polybutadiene rubber. The core layers have different hardness and specific gravity levels. The core assembly preferably has a positive hardness gradient extending across the entire assembly. The core structure and resulting ball have relatively good resiliency.
Public/Granted literature
- US20160129315A1 GOLF BALL CORES HAVING FOAM CENTER AND POLYMERIC OUTER LAYERS WITH HARDNESS GRADIENTS Public/Granted day:2016-05-12
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