Golf balls containing highly neutralized acid polymers and sugar ester HLB modifiers
View Patent ↗A golf ball comprising a core and a cover layer surrounding the core, where at least one of the core and the cover layer includes a polymer composition of a highly neutralized acid polymer and a sugar ester HLB modifier such that the sugar ester HLB modifier is present from about 15 wt % to about 40 wt % of the polymer composition.
1. A golf ball comprising a core and a cover layer surrounding the core, wherein at least one of the core or the cover layer comprises a polymer composition of a highly neutralized acid polymer and a sugar ester HLB modifier such that the sugar ester HLB modifier is present from about 15 wt % to about 40 wt % of the polymer composition;
wherein the sugar ester is an ester of a fatty acid or salt thereof and a C 5 or C 6 sugar selected from the group consisting of arabinose, ribose, ribulose, xylose, xylulose, lyxose, allose, altrose, fructose, galactose, glucose, gulose, idose, mannitose, talose, tagatose and sedoheptulose, sucrose esters of fatty acids, polyoxyethylene derivatives thereof, and combinations thereof.
2. The golf ball of claim 1 , wherein the highly neutralized acid polymer is a copolymer of a C 3 to C 8 α,β-ethylenically unsaturated carboxylic acid and a C 2 to C 6 α-olefin.
3. The golf ball of claim 1 , wherein the highly neutralized acid polymer further includes a softening monomer.
4. The golf ball of claim 1 , wherein the highly neutralized acid polymer is at least 95% neutralized.
5. The golf ball of claim 1 , wherein the highly neutralized acid polymer is 100% neutralized.
6. The golf ball of claim 1 , wherein the highly neutralized acid polymer is neutralized with a metal cation and a fatty acid or fatty acid salt present in amounts sufficient to neutralize the acid polymer by 100%.
7. The golf ball of claim 1 , wherein the cover layer is a double cover having an inner cover layer and an outer cover layer.
8. The golf ball of claim 1 , wherein the fatty acid is selected from the group consisting of stearic acid, lauric acid, palmitic acid, oleic acid, salts thereof, and combinations thereof.
9. The golf ball of claim 1 , wherein the polymer composition has a melt flow index from about 0.5 to about 5.0.
10. The golf ball of claim 1 , wherein the cover layer comprises a thermoplastic or thermoset polyurethane or polyurea.
11. The golf ball of claim 1 , wherein the C 5 or C 6 sugar is a polyoxyethylene derivative.
12. The golf ball of claim 1 , wherein the sugar ester HLB modifier is present from about 20 wt % to about 35 wt % of the polymer composition.
13. The golf ball of claim 1 , wherein the sugar ester HLB modifier has a HLB from about 3 to about 35.
14. The golf ball of claim 1 , wherein the core comprises a center and an outer core layer.
15. The golf ball of claim 14 , wherein the outer core layer comprises the polymer composition.
16. The golf ball of claim 15 , wherein the inner cover layer includes the polymer composition.