Golf ball
AssigneeSumitomo Rubber Industries, Ltd.
InventorsSatoshi Iwami, Akira Kato, Keiji Moriyama
Life of this patent
Estimating the term…
Abstract
A golf ball maintaining favorable shot feeling, exhibiting great spin rate when hit by a short iron or the like, and that easily comes to a halt, and with high spin maintenance is provided. In a golf ball including a core and a cover surrounding the core, the cover includes an ionomer resin (A component), a thermoplastic elastomer with a rubber component or a modified product thereof (B component), and a resin (C component) having solubility with the thermoplastic elastomer with a rubber segment or a modified product thereof. The mixed ratio of the A component/B component is 0.25-4, and the C component/B component is 0.1-0.9.
Claims5
A golf ball including a core and a cover surrounding said core, said cover constituted by a mixture of an ionomer resin (A component), a thermoplastic elastomer with a rubber segment or a modified product thereof (B component), and a terpene resin and/or rosin ester resin (C component) soluble with said thermoplastic elastomer with a rubber segment in its polymer unit or modified product thereof, said component B having a solubility parameter (SP) of 7.0 to 10.0 and said components C having a solubility parameter (SP) of 7.0 to 10.0 wherein the mixing ratio of said A component to said B component (A component/B component) is in a range of 0.25-4.0, and the mixing ratio of said C component to said B component (C component/B component) is in a range of 0.1-0.9.
A golf ball including a core and a cover surrounding said core, said cover constituted by a mixture of an ionomer resin (A component), a thermoplastic elastomer with a rubber segment or a modified product thereof (B component), and a resin (C component) soluble with said thermoplastic elastomer with a rubber segment in its polymer unit or modified product thereof, said component B having a solubility parameter (SP) of 7.0 to 10.0 and said components C having a solubility parameter (SP) of 7.0 to 10.0, with the difference between the solubility parameters (SP) of components B and C being −1.5 to +1.5, wherein the mixing ratio of said A component to said B component (A component/B component) is in a range of 0.25-4.0, and the mixing ratio of said C component to said B component (C component/B component) is in a range of 0.1-0.9.
Dependencies are inferred from the claim text.