IP Library Granted Patent US 7,004,856
Granted Patent B2
US 7,004,856 · App. 10/841,031 · Granted Feb 28, 2006

Thick inner cover multi-layer golf ball

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Quick Facts
Patent No.
US 7,004,856
App. No.
10/841,031
Granted
Feb 28, 2006
Kind
B2
Abstract

A golf ball including a core including a halogenated thiophenol and having a diameter of from about 1.3 inches to about 1.4 inches, a compression of about 44 or less; and a coefficient of restitution of from about 0.770 to about 0.810; a cast polyurethane or polyurea cover; and an intermediate layer disposed between the core and the cover, the intermediate layer having a thickness of from about 0.11 inches to about 0.12 inches and being formed from a composition including at least two ionomers; wherein a combination of the core and the intermediate layer results in a compression of from about 70 to about 100, and the golf ball has a coefficient of restitution of from about 0.805 to about 0.820 at about 125 ft/s and a compression of from about 75 to about 105.

Claims (24)

1. A golf ball comprising:

a core comprising a halogenated thiophenol and having a diameter of from 1.3 inches to 1.4 inches, a compression of about 44 or less; and a coefficient of restitution of from 0.770 to 0.810;

a cast polyurea cover; and

an intermediate layer disposed between the core and the cover, the intermediate layer having a thickness of from 0.11 inches to 0.12 inches and being formed from a composition comprising at least two ionomers;

wherein a combination of the core and the intermediate layer results in a compression of from about 70 to about 100, and the golf ball has a coefficient of restitution of from 0.805 to 0.820 when measured at an incoming velocity of 125 ft/s and greater than 0.75 when measured at an incoming velocity of 160 ft/s, and a compression of from 75 to 105.

2. The golf ball of claim 1 , wherein the core diameter is from about 1.380 inches to about 1.387 inches.

3. The golf ball of claim 1 , wherein the coefficient of restitution of the core is from about 0.774 to about 0.805.

4. The golf ball of claim 1 , wherein the intermediate layer thickness is from about 0.115 inches to about 0.119 inches.

5. The golf ball of claim 1 , wherein the intermediate layer hardness is from about 55 Shore D to about 70 Shore D.

6. The golf ball of claim 1 , wherein a combination of the intermediate layer and the core has a coefficient of restitution of from about 0.810 to about 0.820.

7. The golf ball of claim 1 , wherein the combination of the intermediate layer and the core has a compression of from about 72 to about 90.

8. The golf ball of claim 1 , wherein the cast polyurethane or polyurea cover has a hardness of from about 40 Shore D to about 60 Shore D.

9. The golf ball of claim 1 , wherein the halogenated thiophenol is present in an amount of from about 0.01 pph to about 5 pph.

10. The golf ball of claim 1 , wherein the at least two ionomers are neutralized by a metal cation selected from the group consisting of Na; Zn; Mg; Li; Ca; Ba; Pb; Al; and K metal cations.

11. A golf ball comprising:

a core having a compression of about 50 or less and a coefficient of restitution of about 0.800 or greater;

a thermoset polyurea cover having a hardness of 64 Shore D or less and a thickness of 0.02 inches to 0.1 inches; and

an intermediate layer disposed between the core and the cover, the intermediate layer having a thickness of about 0.110 inches or greater;

wherein a combination of the core and the intermediate layer results in a compression of about 60 or greater and the golf ball has a coefficient of restitution of 0.805 or greater when measured at an incoming velocity of 125 ft/s and greater than 0.75 when measured at an incoming velocity of 160 ft/s.

12. The golf ball of claim 11 , wherein the core has a diameter of from about 0.5 inches to about 1.4 inches and a compression of about 45 or less; and the intermediate layer has a flexural modulus of from about 50,000 psi to about 150,000 psi and a thickness of about 0.12 inches or greater.

13. The golf ball of claim 11 , wherein the core has a diameter of from about 0.8 inches to about 1.4 inches.

14. The golf ball of claim 11 , wherein the core comprises a center and at least one outer core layer.

15. The golf ball of claim 11 , wherein the intermediate layer comprises two or more layers.

16. The golf ball of claim 11 , wherein the core comprises a halogenated thiophenol.

Assignments (6)
SECURITY INTEREST Recorded Aug 3, 2022
From: ACUSHNET COMPANY
To: JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT
Reel/Frame 061099/0236 →
ASSIGNMENT OF SECURITY INTEREST IN PATENTS (ASSIGNS 039506-0030) Recorded Aug 3, 2022
From: WELLS FARGO BANK, NATIONAL ASSOCIATION, AS RESIGNING ADMINISTRATIVE AGENT
To: JPMORGAN CHASE BANK, N.A., AS SUCCESSOR ADMINISTRATIVE AGENT
Reel/Frame 061521/0414 →
RELEASE OF SECURITY INTEREST IN PATENTS PREVIOUSLY RECORDED AT REEL/FRAME (027332/0366) Recorded Sep 7, 2016
From: KOREA DEVELOPMENT BANK, NEW YORK BRANCH
To: ACUSHNET COMPANY
Reel/Frame 039938/0979 →
SECURITY INTEREST Recorded Jul 28, 2016
From: ACUSHNET COMPANY
To: WELLS FARGO BANK, NATIONAL ASSOCIATION, AS ADMINISTRATIVE AGENT
Reel/Frame 039506/0030 →
SECURITY AGREEMENT Recorded Dec 7, 2011
From: ACUSHNET COMPANY
To: KOREA DEVELOPMENT BANK, NEW YORK BRANCH
Reel/Frame 027332/0366 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 7, 2004
From: SULLIVAN, MICHAEL J.; LADD, DEREK A.
To: ACUSHNET COMPANY
Reel/Frame 015319/0615 →