Golf ball incorporating at least one layer of plasticized neutralized acid polymer composition containing low molecular weight acid wax(es) as sole acid polymer component and method of making
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A63B-037/06
A63B-037/00
출원번호
US-0431883
(2017-02-14)
등록번호
US-10105576
(2018-10-23)
발명자
/ 주소
Bulpett, David A.
Blink, Robert
Comeau, Brian
Binette, Mark L.
Sullivan, Michael J.
출원인 / 주소
Acushnet Company
대리인 / 주소
Barker, Margaret C.
인용정보
피인용 횟수 :
0인용 특허 :
53
초록▼
A golf ball comprising at least one layer comprised of a neutralized acid polymer composition consisting of a mixture of: (a) at least one low molecular weight acid-containing wax; (b) at least one non-acid-polymer; (c) at least one organic acid or salt thereof; and (d) at least one plasticizer. Eac
A golf ball comprising at least one layer comprised of a neutralized acid polymer composition consisting of a mixture of: (a) at least one low molecular weight acid-containing wax; (b) at least one non-acid-polymer; (c) at least one organic acid or salt thereof; and (d) at least one plasticizer. Each low molecular weight acid-containing wax may have a molecular weight of from about 500 to about 7000, and in some embodiments, the molecular weight may be considered low up to 30,000. Interactions between components (a), (b), (c) and (d) as disclosed herein advantageously produce a layer of ionomeric material having desirable physical properties, such as heat stability, and processability (excellent melt flow) and softer feel without the need for blending high and low molecular weight acid-containing polymer(s).
대표청구항▼
1. A golf ball comprising at least one layer consisting of a plasticized neutralized acid polymer composition consisting of a mixture of: (a) at least one low molecular weight acid-containing wax; (b) at least one non-acid-polymer; (c) at least one organic acid or salt thereof; and (d) at least one
1. A golf ball comprising at least one layer consisting of a plasticized neutralized acid polymer composition consisting of a mixture of: (a) at least one low molecular weight acid-containing wax; (b) at least one non-acid-polymer; (c) at least one organic acid or salt thereof; and (d) at least one plasticizer; wherein each low molecular weight acid-containing wax has a molecular weight of from about 500 to about 30,000;wherein the mixture contains at least 70 percent of neutralized acid groups; andwherein the mixture has a melt flow index of at least 0.5 g/10 min. 2. The golf ball of claim 1, wherein component (a) is included in an amount of 5 to 95 parts of each 100 parts of components (a) and (b) combined. 3. The golf ball of claim 2, wherein component (b) is included in an amount of from about 5 to 95 parts of each 100 parts of components (a) and (b) combined. 4. The golf ball of claim 3, wherein component (c) is included in an amount of from 5 to 100 parts per 100 parts of components (a) and (b) combined. 5. The golf ball of claim 4, wherein component (d) may be included in an amount of from about 1.0 parts to about 300 parts per 100 parts of components (a) and (b) combined. 6. The golf ball of claim 5, wherein component (a) is included in the mixture in an amount of about 70-80 wt % of each 100 wt % of components (a) and (b) combined, component (b) is included in the mixture in an amount of about 20-30 wt % of each 100 wt % of components (a) and (b) combined, component (c) is included in the mixture in an amount of about 35-45 wt % per 100 wt % of components (a) and (b) combined; and component (d) is included in the mixture in an amount of about 0.5-80 wt % of each 100 wt % of components (a) and (b) and (d) combined. 7. The golf ball of claim 5, wherein the mixture contains at least 80 percent of neutralized acid groups. 8. The golf ball of claim 5, wherein the mixture contains at least 90 percent of neutralized acid groups. 9. The golf ball of claim 5, wherein the mixture contains 100 percent of neutralized acid groups. 10. The golf ball of claim 5, wherein the mixture contains an amount of a cation source greater than an amount sufficient to neutralize about 100% of all acid groups present. 11. The golf ball of claim 5, wherein the at least one organic acid or salt thereof is a fatty acid or fatty acid salt, or blends thereof. 12. The golf ball of claim 1, wherein the at least one organic acid or salt thereof is selected from the group consisting of Magnesium Oleate, Magnesium Stearate, or combinations thereof. 13. The golf ball of claim 5, wherein the low molecular weight acid-containing wax is selected from the group consisting of ethylene acrylic acid copolymers, ethylene-meth acrylic acid copolymers, oxidized polyethylene, or combinations thereof. 14. The golf ball of claim 13, wherein each low molecular weight acid-containing wax has a molecular weight of from about 500 to about 7,000. 15. The golf ball of claim 13, wherein the non-acid polymer is selected from the group consisting of ethylene acrylate copolymers; polyether esters; polyether amines; or combinations thereof. 16. The golf ball of claim 15, wherein the plasticizer is selected from the group consisting of fatty acid esters, phosphate esters, or mixtures thereof. 17. The golf ball of claim 16, wherein the melt flow index of the mixture is greater than 1.0 g/10 min. 18. The golf ball of claim 16, wherein the melt flow index of the mixture is from about 1.0 g/10 min to about 4 g/10 min. 19. The golf ball of claim 16, wherein the golf ball has a CoR of from about 0.740 to about 0.840. 20. The golf ball of claim 19, wherein the golf ball has a compression of from about 40 to about 135. 21. The golf ball of claim 4, wherein each low molecular weight acid-containing wax has a Brookfield viscosity of about 1100 cps or less at 140° C. and a density of less than 0.96 g/cc. 22. The golf ball of claim 16, comprising a center and an outer core layer disposed about the center, wherein at least one of the center and the outer core layer is the at least one layer. 23. The golf ball of claim 22, wherein the center has a diameter of from 0.50 inches to 1.30 inches and a center hardness of 50 Shore C or greater, and the outer core layer has a surface hardness of 75 Shore C or greater, and an inner cover layer has a material hardness less than the surface hardness of the outer core layer; and an outer cover layer is disposed about the inner cover layer. 24. The golf ball of claim 22, wherein the center has a diameter of from 0.50 inches to 1.30 inches and a center hardness of 75 Shore C or greater, and the outer core layer has a surface hardness of 50 Shore C or greater, and an inner cover layer has a material hardness less than the surface hardness of the outer core layer; and an outer cover layer is disposed about the inner cover layer. 25. The golf ball of claim 16, comprising a subassembly, an inner cover layer disposed about the subassembly, and an outer cover layer surrounding the inner cover layer, wherein at least one of the inner cover layer and outer cover layer is the at least one layer.
Boehm,Herbert C.; Sullivan,Michael J.; Aoyama,Steven; Bulpett,David A.; Ladd,Derek A., Multi-layer golf ball having velocity gradient from slower center to faster cover.
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