Golf ball

• US 7,207,904 B2
• Filed: 02/16/2005
• Issued: 04/24/2007
• Est. Priority Date: 03/01/2004
• Status: Expired due to Fees

• Current Assignee: Sumitomo Rubber Industries Limited
• Original Assignee: SRI Sports Limited (Sumitomo Rubber Industries Limited)
• Inventors: Isogawa, Kazuhiko, Fujisawa, Koichi, Yabuki, Yoshikazu
• Primary Examiner(s): Gorden; Raeann
• Application Number:
  US11/058,186
• Publication Number:
  US 20050192122A1
• Time in Patent Office: 797 Days
• Field of Search: 473/351, 473/378
• US Class Current: 473/378
• CPC Class Codes: A63B 37/0003 Golf balls
• CPC Class Codes: A63B 37/0024 Materials other than ionomers or polyurethane

Abstract

A golf ball has a core, and a cover for covering the core. The cover contains 0.5 to 10 parts by mass of a titanium oxide relative to 100 parts by mass of a base resin composing the cover, and the titanium oxide is surface-treated with an oxide including at least one element selected from the group consisting of aluminum, silicon, zinc, zirconium, tin, and cerium, and/or a hydrate thereof The golf ball has less or no discoloration or degradation with time, and has superior weatherability.

Claims

1. A golf ball comprising:

a core; and

a cover for covering the core,

the cover containing 0.5 to 10 parts by mass of a titanium oxide relative to 100 parts by mass of a base resin composing the cover, wherein

the titanium oxide is surface-treated with an oxide including at least one element selected from the group consisting of aluminum, silicon, zinc, zirconium, tin, and cerium, and/or a hydrate thereof.

2. The golf ball according to claim 1, wherein the titanium oxide is surface-treated with at least one selected from the group consisting of a silicon oxide, a zirconium oxide, an aluminum oxide, and a hydrate thereof.

3. The golf ball according to claim 1, further comprising a single-layered coat.

5. A golf ball according to claim 1, wherein the oxide used to surface-treat the titanium oxide is an oxide and/or hydrate of aluminum.

6. A golf ball according to claim 1, wherein the oxide used to surface-treat the titanium oxide is an oxide and/or hydrate of silicon.

7. A golf ball according to claim 1, wherein the oxide used to surface-treat the titanium oxide is an oxide and/or hydrate of zinc.

8. A golf ball according to claim 1, wherein the oxide used to surface-treat the titanium oxide is an oxide and/or hydrate of zirconium.

9. A golf ball according to claim 1, wherein the oxide used to surface-treat the titanium oxide is an oxide and/or hydrate of tin.

10. A golf ball according to claim 1, wherein the oxide used to surface-treat the titanium oxide is an oxide and/or hydrate of cerium.

4. A golf ball comprising:

a core; and

a cover for covering the core,

the cover containing 0.5 to 10 parts by mass of a titanium oxide relative to 100 parts by mass of a base resin composing the cover, wherein

the titanium oxide is surface-treated with an oxide including at least one element selected from the group consisting of zirconium, tin, and cerium, and/or a hydrate thereof.