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US 2019/0099642 A1Published application
Golf Ball With Improved Durability
AssigneeCallaway Golf Company
InventorCarl Brown
Life of this patent
Estimating the term…
Abstract
A golf ball with improved durability is disclosed herein. The golf ball has a mantle layer comprising a blend of ionomers and methyl methacrylate, butadiene, styrene (MBS) with a weight percentage of MBS ranging from 5 to 15 weight percent of the mantle layer.
Claims3
1-8. (canceled)
A golf ball consisting essentially of:
- an inner core having a diameter ranging from 0.75 inch to 1.20 inches, a mass ranging from 5 grams to 15 grams, and is composed of a polybutadiene in an amount greater than 60 weight percent, polyisoprene in an amount of 1-30, Weight percent, ainc diacrylate in an amount of 10-50 weight percent, zinc oxide in an amount of 1-30 weight percent, zinc stearate in an amount of 1-20 weight percent, peroxide initiator in an amount of 0.1-10 weight percent, and zinc pentachlorothiophenol in an amount of 0-10% weight percent;
- an outer core disposed over the inner core;
- a mantle layer disposed over the outer core, the mantle layer consisting essentially of a first ionomer in an amount ranging from 25 to 60 weight percent of the mantle layer, a second ionomer in an amount ranging from 25 to 60 weight percent of the mantle layer, a third ionomer in an amount ranging from 5 to 20 weight percent of the mantle layer, and a methyl methacrylate, butadiene, styrene (MBS) in an amount ranging from 5 to 15 weight percent of the mantle layer, the mantle layer having a thickness ranging from 0.03 inch to 0.07 inch;
- and
- a cover layer disposed over the mantle layer;
- wherein the mantle layer, outer core and inner core assembly has a coefficient of restitution of at least 0.8 at a ball speed of 125 feet per second;
- wherein the mantle layer, outer core and inner core assembly has a compression ranging from 50 to 80 under a 200 pound load.
4 more elements
10-11. (canceled)
Dependencies are inferred from the claim text.