MULTI-PIECE SOLID GOLF BALL
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United States of America Patent
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Issued Date -
Jun 19, 2014
app pub date -
Dec 17, 2012
filing date -
Dec 17, 2012
priority date (Note) -
Abandoned
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Abstract
In a multi-piece solid golf ball having a core, at least one intermediate layer encasing the core and a cover of at least one layer encasing the intermediate layer, each intermediate layer is formed primarily of a resin material and each layer of the cover is formed primarily of an ionomer resin. The intermediate layer has a Shore D material hardness of not more than 50 and the cover has a Shore D material hardness greater than 60, the material hardness of the cover being higher than the material hardness of the intermediate layer. The intermediate layer and the cover have a total thickness of not more than 2.2 mm. The cover has a larger thickness than the intermediate layer, the ratio (a)/(b) of the cover thickness (a) to the intermediate layer thickness (b) being at least 1.1 and not more than 2.0.
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