Golf ball having high initial velocity

(19)

(11)

EP 2 420 297 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	07.03.2012 Bulletin 2012/10

(43)	Date of publication A2:
	22.02.2012 Bulletin 2012/08

(21)	Application number: 11177880.9

(22)	Date of filing: 18.08.2011

(51)

International Patent Classification (IPC):

A63B 37/00^(2006.01)

A63B 37/12^(2006.01)

(84)	Designated Contracting States:
	AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
	Designated Extension States:
	BA ME

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Priority:

20.08.2010 US 375775 P
04.08.2011 US 198554

(71)	Applicant: Nike International Ltd.
	Beaverton, Oregon 97005-6453 (US)

(72)	Inventor:
	Molinari, Arthur Beaverton, Oregon 97005 (US)

(74)	Representative: Grünecker, Kinkeldey, Stockmair & Schwanhäusser
	Anwaltssozietät Leopoldstrasse 4 80802 München 80802 München (DE)

(54)	Golf ball having high initial velocity

(57) A multi-layer ball includes a core made of a high energy material such as a highly neutralized polymer and a cover made of a deadening material. A specified relationship exists between the compression and coefficient of restitution of the core and of the ball. The initial velocity of the ball is higher than what would be expected based on the coefficient of restitution of the ball compared to prior balls. The use of the deadening material allows the coefficient of restitution of the ball to be relatively low, which can yield improved spinnability in the half wedge shots while maintaining driver distance.

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