Golf balls having multi-layered covers based on aromatic and aliphatic polyurethanes

US9044648B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9044648-B2
Application numberUS-201113330056-A
CountryUS
Kind codeB2
Filing dateDec 19, 2011
Priority dateMar 13, 2009
Publication dateJun 2, 2015
Grant dateJun 2, 2015

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  1. Title

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  2. Abstract

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  4. Key dates

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  5. First independent claim

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Abstract

Official abstract text for this publication.

Golf balls having multi-layered covers are provided. The cover includes an inner cover layer made of an ionomer composition; an intermediate cover layer made of an aromatic polyurethane composition; and outer cover layer made of an aliphatic polyurethane composition, wherein the total thickness of the multi-layered cover is no greater than 0.110 inches. Preferably, the thickness of the inner cover layer is 0.010 to 0.050 inches; the thickness of the intermediate cover layer is 0.010 to 0.040 inches; and thickness of the outer cover layer is 0.004 to 0.020 inches. The invention also includes methods for making such multi-layered covers. The resulting ball has good light-stability, cut/shear-resistance, and impact durability.

First claim

Opening claim text (preview).

We claim: 1. A method for molding a multi-layered golf ball, comprising the steps of: a) dispensing a first liquid mixture comprising a first reactive polyurethane prepolymer and chain-extender, the polyurethane prepolymer being formed from the reaction of an aliphatic diisocyante and polyol, into lower and upper mold cavities and allowing the mixture to react and coat the interior surfaces of each mold cavity, whereby the coating produced from the first liquid mixture forms an ou…

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What does patent US9044648B2 cover?
Golf balls having multi-layered covers are provided. The cover includes an inner cover layer made of an ionomer composition; an intermediate cover layer made of an aromatic polyurethane composition; and outer cover layer made of an aliphatic polyurethane composition, wherein the total thickness of the multi-layered cover is no greater than 0.110 inches. Preferably, the thickness of the inner co…
Who is the assignee on this patent?
Sullivan Michael J, Binette Mark L, Acushnet Co
What technology area does this patent fall under?
Primary CPC classification A63B37/0092. Mapped technology areas include Human Necessities.
When was this patent published?
Publication date Tue Jun 02 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).