Golf ball resin composition and golf ball

Patent metadata

Field	Value
Publication number	US-2017001078-A1
Application number	US-201615196980-A
Country	US
Kind code	A1
Filing date	Jun 29, 2016
Priority date	Jun 30, 2015
Publication date	Jan 5, 2017
Grant date	—

Abstract

An object of the present invention is to provide a golf ball resin composition having high resilience and flexibility. The present invention provides a golf ball resin composition, comprising (A) at least one resin component selected from the group consisting of (a-1) a binary copolymer, (a-2) an ionomer resin consisting of a metal ion-neutralized product of a binary copolymer, (a-3) a ternary copolymer, and (a-4) an ionomer resin consisting of a metal ion-neutralized product of a ternary copolymer, (B) a saturated fatty acid, (C) an unsaturated fatty acid, and (D) an unsaturated aliphatic polycarboxylic acid; comprising (B) the saturated fatty acid, (C) the unsaturated fatty acid and (D) the unsaturated aliphatic polycarboxylic acid in a total amount ranging from 80 parts by mass to 200 parts by mass with respect to 100 parts by mass of (A) the resin component; and having a neutralization degree of more than 80 mole %.

First claim

1 . A golf ball resin composition, comprising (A) at least one resin component selected from the group consisting of (a-1) a binary copolymer composed of an olefin and an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms, (a-2) an ionomer resin consisting of a metal ion-neutralized product of a binary copolymer composed of an olefin and an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms, (a-3) a ternary copolymer composed of an olefin, an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms and an α,β-unsaturated carboxylic acid ester, and (a-4) an ionomer resin consisting of a metal ion-neutralized product of a ternary copolymer composed of an olefin, an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms and an α,β-unsaturated carboxylic acid ester, (B) a saturated fatty acid, (C) an unsaturated fatty acid, and (D) an unsaturated aliphatic polycarboxylic acid;
comprising (B) the saturated fatty acid, (C) the unsaturated fatty acid and (D) the unsaturated aliphatic polycarboxylic acid in a total amount ranging from 80 parts by mass to 200 parts by mass with respect to 100 parts by mass of (A) the resin component; and
having a neutralization degree of more than 80 mole %.

2 . The golf ball resin composition according to claim 1 , wherein (B) the saturated fatty acid includes a linear saturated fatty acid having 4 to 30 carbon atoms.

3 . The golf ball resin composition according to claim 1 , wherein (B) the saturated fatty acid includes at least one selected from the group consisting of palmitic acid, stearic acid, arachidic acid, behenic acid, lignoceric acid and montanic acid.

4 . The golf ball resin composition according to claim 1 , wherein (C) the unsaturated fatty acid includes a linear unsaturated fatty acid having 4 to 30 carbon atoms.

5 . The golf ball resin composition according to claim 1 , wherein (C) the unsaturated fatty acid includes at least one selected from the group consisting of palmitoleic acid, oleic acid, linoleic acid and arachidonic acid.

6 . The golf ball resin composition according to claim 1 , wherein (D) the unsaturated aliphatic polycarboxylic acid includes a dimer and/or trimer of a linear unsaturated fatty acid having 4 to 30 carbon atoms.

7 . The golf ball resin composition according to claim 1 , wherein (D) the unsaturated aliphatic polycarboxylic acid includes a dimer and/or trimer of at least one selected from the group consisting of palmitoleic acid, oleic acid, linoleic acid and arachidonic acid.

8 . The golf ball resin composition according to claim 1 , wherein a mass ratio [(B)/{(C)+(D)}] of (B) the saturated fatty acid to a sum of (C) the unsaturated fatty acid and (D) the unsaturated aliphatic polycarboxylic acid ranges from 10/90 to 90/10.

9 . The golf ball resin composition according to claim 1 , further comprising (E) an amphoteric surfactant.

10 . The golf ball resin composition according to claim 9 , wherein (E) the amphoteric surfactant includes at least one selected from the group consisting of a betaine type amphoteric surfactant, an amidoamino acid type amphoteric surfactant, an alkylamino fatty acid salt type amphoteric surfactant, an alkylamine oxide type amphoteric surfactant, a β-alanine type amphoteric surfactant, a glycine type amphoteric surfactant, a sulfobetaine type amphoteric surfactant and a phosphobetaine type amphoteric surfactant.

11 . The golf ball resin composition according to claim 9 , comprising (E) the amphoteric surfactant in an amount ranging from 1 part by mass to 20 parts by mass with respect to 100 parts by mass of (A) the resin component.

12 . The golf ball resin composition according to claim 1 , further comprising (F) a metal compound.

13 . The golf ball resin composition according to claim 1 , having a slab hardness ranging from 20 to 80 in Shore D hardness.

14 . A golf ball comprising a constituent member formed from a golf ball resin composition, wherein the golf ball resin composition comprises (A) at least one resin component selected from the group consisting of (a-1) a binary copolymer composed of an olefin and an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms, (a-2) an ionomer resin consisting of a metal ion-neutralized product of a binary copolymer composed of an olefin and an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms, (a-3) a ternary copolymer composed of an olefin, an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms and an α,β-unsaturated carboxylic acid ester, and (a-4) an ionomer resin consisting of a metal ion-neutralized product of a ternary copolymer composed of an olefin, an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms and an α,β-unsaturated carboxylic acid ester, (B) a saturated fatty acid, (C) an unsaturated fatty acid, and (D) an unsaturated aliphatic polycarboxylic acid; comprises (B) the saturated fatty acid, (C) the unsaturated fatty acid and (D) the unsaturated aliphatic polycarboxylic acid in a total amount ranging from 80 parts by mass to 200 parts by mass with respect to 100 parts by mass of (A) the resin component; and has a neutralization degree of more than 80 mole %.

15 . The golf ball according to claim 14 , wherein (B) the saturated fatty acid includes a linear saturated fatty acid having 4 to 30 carbon atoms, (C) the unsaturated fatty acid includes a linear unsaturated fatty acid having 4 to 30 carbon atoms, (D) the unsaturated aliphatic polycarboxylic acid includes a dimer and/or trimer of a linear unsaturated fatty acid having 4 to 30 carbon atoms.

16 . The golf ball according to claim 14 , wherein (B) the saturated fatty acid includes at least one selected from the group consisting of palmitic acid, stearic acid, arachidic acid, behenic acid, lignoceric acid and montanic acid, (C) the unsaturated fatty acid includes at least one selected from the group consisting of palmitoleic acid, oleic acid, linoleic acid and arachidonic acid, and (D) the unsaturated aliphatic polycarboxylic acid includes a dimer and/or trimer of at least one selected from the group consisting of palmitoleic acid, oleic acid, linoleic acid and arachidonic acid.

17 . The golf ball according to claim 14 , wherein a mass ratio [(B)/{(C)+(D)}] of (B) the saturated fatty acid to a sum of (C) the unsaturated fatty acid and (D) the unsaturated aliphatic polycarboxylic acid ranges from 10/90 to 90/10.

18 . The golf ball according to claim 14 , wherein the golf ball resin composition further comprises (E) an amphoteric surfactant in an amount ranging from 1 part by mass to 20 parts by mass with respect to 100 parts by mass of (A) the resin component.

19 . The golf ball according to claim 14 , wherein the golf ball resin composition further comprises (F) a metal compound.

20 . The golf ball according to claim 14 , wherein the golf ball resin composition has a slab hardness ranging from 20 to 80 in Shore D hardness.

Assignees

• Dunlop Sports Co Ltd

Inventors

• Shiga Kazuyoshi
• Tadaoka Hiroshi
• Taguchi Masanori
• Shigemitsu Takahiro

Classifications

• C08K5/09

  Carboxylic acids; Metal salts thereof; Anhydrides thereof · CPC title

• C08K3/22

  of metals · CPC title

• C08K5/092

  Polycarboxylic acids · CPC title

• A63B37/0039 Primary

  characterised by the material · CPC title

• C08K2003/2224

  Magnesium hydroxide · CPC title