Invention Grant
US08257200B2 Multi-layer core golf ball having opposing hardness gradient with steep gradient outer core layer
有权
具有陡峭梯度外芯层的相对硬度梯度的多层芯高尔夫球
- Patent Title: Multi-layer core golf ball having opposing hardness gradient with steep gradient outer core layer
- Patent Title (中): 具有陡峭梯度外芯层的相对硬度梯度的多层芯高尔夫球
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Application No.: US13195083Application Date: 2011-08-01
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Publication No.: US08257200B2Publication Date: 2012-09-04
- Inventor: Michael J. Sullivan , Derek A. Ladd , Brian Comeau
- Applicant: Michael J. Sullivan , Derek A. Ladd , Brian Comeau
- Applicant Address: US MA Fairhaven
- Assignee: Acushnet Company
- Current Assignee: Acushnet Company
- Current Assignee Address: US MA Fairhaven
- Agent William B. Lacy
- Main IPC: A63B37/06
- IPC: A63B37/06
Abstract:
A golf ball comprising an inner core having an outer surface and a geometric center and being formed from a substantially homogenous composition such that the geometric center has a hardness of 56 to 80 Shore C and the outer surface has a hardness of 50 to 75 Shore C. An outer core layer is disposed about the inner core and has an outer surface having a hardness of 85 to 98 Shore C and an inner surface having a hardness of 68 to 78 Shore C and being formed from a second substantially homogenous rubber composition. A cover layer is disposed about the outer core layer. The hardness of the second outer surface is greater than the hardness of the inner surface to define a positive hardness gradient of +7 to +30 Shore C, and the hardness of the first outer surface is lower than the hardness of the geometric center to define a negative hardness gradient of −1 to −15 Shore C.
Public/Granted literature
- US20110287861A1 MULTI-LAYER CORE GOLF BALL HAVING OPPOSING HARDNESS GRADIENT WITH STEEP GRADIENT OUTER CORE LAYER Public/Granted day:2011-11-24
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