Compositions incorporating ethylene acid (E/X) ionomers and non-ionomeric softening polymers for golf ball constructions and methods relating thereto
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A63B-037/04
A63B-037/06
A63B-037/12
A63B-037/00
A63B-045/00
출원번호
US-0070613
(2013-11-04)
등록번호
US-9199132
(2015-12-01)
발명자
/ 주소
Sullivan, Michael J.
Bulpett, David A.
Blink, Robert
Binette, Mark L.
Comeau, Brian
출원인 / 주소
Acushnet Company
대리인 / 주소
Baker, Margaret C.
인용정보
피인용 횟수 :
0인용 특허 :
19
초록▼
A golf ball comprising a core and a cover disposed about the core; wherein at least one of the core and the cover comprises a tri-blend composition of the non-E/X/Y type (TBC) formed from a blend of an ethylene acid (E/X) ionomer, a non-ionomeric softening copolymer (NISC) and a low viscosity compon
A golf ball comprising a core and a cover disposed about the core; wherein at least one of the core and the cover comprises a tri-blend composition of the non-E/X/Y type (TBC) formed from a blend of an ethylene acid (E/X) ionomer, a non-ionomeric softening copolymer (NISC) and a low viscosity component (LVC). A portion of the TBC comprising the ethylene acid (E/X) ionomer and the NISC has a Melt Flow Index MF1 and a CoR1 and the TBC has a Melt Flow Index MF2 and a CoR2 such that MF2MF1 and CoR1 and CoR2 differ by less than about 0.1. In one embodiment, the TBC has a composition property relationship ΔCoR/ΔMFI≦˜10, wherein ΔCoR is the amount by which CoR1 and CoR2 differ, and ΔMFI=(MFI2−MFI1). In one embodiment, the TBC comprises a phase-separated blend. The invention is also directed to a method of making the golf ball.
대표청구항▼
1. A golf ball comprising a core and a cover disposed about the core; wherein at least one of the core and the cover comprises a tri-blend composition of a non-E/X/Y type (TBC), formed from a blend of an ethylene acid (E/X) ionomer, a non-ionomeric softening copolymer (NISC) and a low viscosity comp
1. A golf ball comprising a core and a cover disposed about the core; wherein at least one of the core and the cover comprises a tri-blend composition of a non-E/X/Y type (TBC), formed from a blend of an ethylene acid (E/X) ionomer, a non-ionomeric softening copolymer (NISC) and a low viscosity component (LVC);wherein a portion of the TBC comprising the ethylene acid (E/X) ionomer and the NISC has a Melt Flow Index MF1 and a CoR1 and the TBC has a Melt Flow Index MF2 and a CoR2 such that MF2>MF1 and CoR1 and CoR2 differ by less than about 0.1; andwherein an E/X ionomer and NISC portion of the blend comprises the E/X ionomer in an amount of from about 30% to about 85% of the portion. 2. The golf ball of claim 1, wherein the E/X ionomer is formed from ethylene and an α,β-ethylenically unsaturated carboxylic acid. 3. The golf ball of claim 2, wherein the α,β-ethylenically unsaturated carboxylic acid comprises at least one of acrylic acid and methacrylic acid. 4. The golf ball of claim 1, wherein the E/X ionomer and NISC portion of the blend comprises the E/X ionomer in an amount of from about 30% to about 75% of the portion. 5. The golf ball of claim 1, wherein the E/X ionomer and NISC portion of the blend comprises the E/X ionomer in an amount of from about 30% to about 60% of the portion. 6. The golf ball of claim 1, wherein the portion has a Melt Flow Index of less than about 3 g/10 mins. 7. The golf ball of claim 1, wherein the portion has a Melt Flow Index of less than about 2 g/10 mins. 8. The golf ball of claim 1, wherein the portion has a Melt Flow Index of less than about 1 g/10 mins. 9. The golf ball of claim 1, wherein the NISC comprises at least one of ethylene butyne, ethylene hexane and ethylene alkyl acrylate. 10. The golf ball of claim 1, wherein the LVC comprises at least one of a polyethylene homopolymer, a high-density oxidized polyethylene homopolymer, a polypropylene homopolymer, an ethylene-acrylic acid copolymer, oxidized ethylene-vinyl acetate copolymer, polyethylene copolymers, ethylene maleic anhydride copolymers, and propylene maleic anhydride copolymers. 11. The golf ball of claim 1, wherein the blend has a Melt Flow Index that is greater than the Melt Flow Index of the portion. 12. The golf ball of claim 11, wherein the blend has a Melt Flow Index that is greater than the Melt Flow Index of the portion by up to about 0.03 g/10 mins or greater. 13. The golf ball of claim 11, wherein the blend has a Melt Flow Index that is greater than the Melt Flow Index of the portion by at least about 0.11 g/10 mins. 14. The golf ball of claim 11, wherein the blend has a Melt Flow Index that is greater than the Melt Flow Index of the portion by about 0.66 g/10 mins or greater. 15. The golf ball of claim 11, wherein the blend has a Melt Flow Index that is greater than the Melt Flow Index of the portion by at least about 1.68 g/10 mins. 16. The golf ball of claim 1, wherein the blend has an Atti compression of from about −75 to about 200. 17. The golf ball of claim 1, wherein the TBC has a composition property relationship ΔCoR/ΔMFI≦˜10, wherein ΔCoR is the amount by which CoR1 and CoR2 differ, and ΔMFI=(MFI2−MFI1). 18. A golf ball comprising a core and a cover disposed about the core; wherein at least one of the core and the cover comprises a tri-blend composition of a non-E/X/Y type (TBC), formed from a blend of an ethylene acid (E/X) ionomer, a non-ionomeric softening copolymer (NISC) and a low viscosity component (LVC);wherein a portion of the TBC comprising the ethylene acid (E/X) ionomer and the NISC has a Melt Flow Index MF1 and a CoR1 and the TBC has a Melt Flow Index MF2 and a CoR2 such that MF2>MF1 and CoR1 and CoR2 differ by less than about 0.1; andwherein the NISC is grafted. 19. The golf ball of claim 18, wherein the portion has a Melt Flow Index of less than about 3 g/10 mins. 20. The golf ball of claim 18, wherein the NISC comprises at least one of ethylene butyne, ethylene hexane and ethylene alkyl acrylate. 21. The golf ball of claim 18, wherein the LVC comprises at least one of a polyethylene homopolymer, a high-density oxidized polyethylene homopolymer, a polypropylene homopolymer, an ethylene-acrylic acid copolymer, oxidized ethylene-vinyl acetate copolymer, polyethylene copolymers, ethylene maleic anhydride copolymers, and propylene maleic anhydride copolymers. 22. A golf ball comprising a core and a cover disposed about the core; wherein at least one of the core and the cover comprises a tri-blend composition of a non-E/X/Y type (TBC), formed from a blend of an ethylene acid (E/X) ionomer, a non-ionomeric softening copolymer (NISC) and a low viscosity component (LVC);wherein a portion of the TBC comprising the ethylene acid (E/X) ionomer and the NISC has a Melt Flow Index MF1 and a CoR1 and the TBC has a Melt Flow Index MF2 and a CoR2 such that MF2>MF1 and CoR1 and CoR2 differ by less than about 0.1; andwherein the blend comprises the LVC in an amount of from about 2% to about 40%. 23. The golf ball of claim 22, wherein the blend comprises the LVC in an amount of from about 5% to about 40%. 24. The golf ball of claim 22, wherein the blend comprises the LVC in an amount of from about 10% to about 40%. 25. The golf ball of claim 22, wherein the portion has a Melt Flow Index of less than about 3 g/10 mins. 26. The golf ball of claim 22, wherein the NISC comprises at least one of ethylene butyne, ethylene hexane and ethylene alkyl acrylate. 27. The golf ball of claim 22, wherein the LVC comprises at least one of a polyethylene homopolymer, a high-density oxidized polyethylene homopolymer, a polypropylene homopolymer, an ethylene-acrylic acid copolymer, oxidized ethylene-vinyl acetate copolymer, polyethylene copolymers, ethylene maleic anhydride copolymers, and propylene maleic anhydride copolymers. 28. A method of making a golf ball comprising: providing a core and forming a cover about the core;wherein at least one of the core and the cover comprises a tri-blend composition of the non-E/X/Y type (TBC) that is formed by blending an ethylene acid ionomer (E/X), a non-ionomeric softening copolymer (NISC) and a low viscosity component (LVC);wherein a portion of the TBC comprising the ethylene acid (E/X) ionomer and the NISC has a Melt Flow Index MF1 and a CoR1 and the TBC has a Melt Flow Index MF2 and a CoR2 such that MF2>MF1 and CoR1 and CoR2 differ by less than about 0.1; andwherein the blend comprises the LVC in an amount of from about 2% to about 40%. 29. The method of making a golf ball of claim 28, wherein the blend comprises the NISC in an amount of from about 15% to about 70%. 30. A method of making a golf ball comprising: providing a core and forming a cover about the core;wherein at least one of the core and the cover comprises a tri-blend composition of the non-E/X/Y type (TBC) that is formed by blending an ethylene acid ionomer (E/X), a non-ionomeric softening copolymer (NISC) and a low viscosity component (LVC);wherein a portion of the TBC comprising the ethylene acid (E/X) ionomer and the NISC has a Melt Flow Index MF1 and a CoR1 and the TBC has a Melt Flow Index MF2 and a CoR2 such that MF2>MF1 and CoR1 and CoR2 differ by less than about 0.1; andwherein a portion of the blend comprising the E/X ionomer and NISC comprises the E/X ionomer in an amount of from about 30% to about 85% of the portion. 31. The method of making a golf ball of claim 30, wherein the portion has a Melt Flow Index of less than about 3 g/10 mins. 32. The method of making a golf ball of claim 30, wherein the blend has a Melt Flow Index that is greater than the Melt Flow Index of the portion. 33. The method of making a golf ball of claim 30, wherein the blend comprises the NISC in an amount of from about 15% to about 70%. 34. A golf ball comprising a core and a cover disposed about the core; wherein at least one of the core and the cover comprises a tri-blend composition of the non-E/X/Y type (TBC) formed from a blend of an ethylene acid ionomer (E/X), a non-ionomeric softening copolymer (NISC) and a low viscosity component (LVC); andwherein the TBC comprises a phase-separated blend; andwherein the phase-separated blend comprises a continuous phase and a discontinuous phase wherein the average size of the discontinuous phase is less than about 10 microns. 35. The golf ball of claim 34, wherein the TBC has a composition property relationship CPR=(Atti compression)×(Melt Index) of from about −10,000 to about 10,000. 36. The golf ball of claim 34, wherein the ethylene acid (E/X) ionomer and NISC portions of the blend, combined, have a CoR1 and the TBC has a CoR2 such that CoR1-CoR2 is less than about 0.1. 37. The golf ball of claim 34, wherein the average size of the discontinuous phase is less than about 5 microns. 38. The golf ball of claim 34, wherein the E/X ionomer is formed from ethylene and an α,β-ethylenically unsaturated carboxylic acid. 39. The golf ball of claim 34, wherein the LVC comprises at least one of wherein the LVC comprises at least one of a polyethylene homopolymer, a high-density oxidized polyethylene homopolymer, a polypropylene homopolymer, an ethylene-acrylic acid copolymer, oxidized ethylene-vinyl acetate copolymer, polyethylene copolymers, ethylene maleic anhydride copolymers, and propylene maleic anhydride copolymers. 40. The golf ball of claim 34, wherein the NISC comprises at least one of ethylene butyne, ethylene hexane and ethylene alkyl acrylate.
Bulpett, David A.; Blink, P. Robert; Binette, Mark L.; Comeau, Brian; Sullivan, Michael J., Very-low melt flow thermoplastic composition for golf ball core layers.
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