IP Library Granted Patent US 10,245,471
Granted Patent B2
US 10,245,471 · App. 15/626,225 · Granted Apr 2, 2019

Multi-layer golf ball

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Quick Facts
Patent No.
US 10,245,471
App. No.
15/626,225
Granted
Apr 2, 2019
Kind
B2
Abstract

Multi-piece golf balls having a multi-layered solid core and multi-layered cover are provided.

Claims (12)

1. A golf ball consisting essentially of:

an inner core layer formed from a thermoset composition and having a diameter of 1.2 inches or greater, a center hardness (H center ) of from 45 Shore C to 80 Shore C, and an outer surface hardness (H center surface ) of from 55 Shore C to 90 Shore C;

an intermediate core layer formed from a thermoplastic composition having a material hardness (H intermediate core material ) of 98 Shore C or less;

an outer core layer formed from an ionomer composition having a material hardness (H outer core material ) of 35 Shore D or greater;

an inner cover layer formed from a thermoplastic composition having a material hardness (H inner cover material ) of 95 Shore C or less;

an intermediate cover layer formed from a thermoplastic composition having a material hardness (H intermediate cover material ) of 80 Shore C or greater;

and an outer cover layer formed from a composition selected from the group consisting of polyurethanes, polyureas, and copolymers and blends thereof, and having an outer surface hardness (H outer cover surface ) of from 58 Shore D to 75 Shore D;

wherein H intermediate cover material is greater than H outer core material .

2. The golf ball of claim 1 , wherein the intermediate core layer has a thickness of from 0.015 inches to 0.070 inches.

3. The golf ball of claim 1 , wherein H intermediate core material is 96 Shore C or less.

4. The golf ball of claim 1 , wherein the intermediate core layer has a surface hardness (H intermediate core surface ) and the outer core layer has a surface hardness (H outer core surface ), and H intermediate core surface is greater than H outer core surface .

5. The golf ball of claim 1 , wherein the intermediate core layer has a surface hardness of from 87 Shore C to 95 Shore C.

Assignments (3)
ASSIGNMENT OF SECURITY INTEREST IN PATENTS (ASSIGNS 051618-0777) 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 061069/0731 →
SECURITY INTEREST Recorded Jan 15, 2020
From: ACUSHNET COMPANY
To: WELLS FARGO BANK, N.A., AS ADMINISTRATIVE AGENT
Reel/Frame 051618/0777 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 19, 2017
From: SULLIVAN, MICHAEL J.
To: ACUSHNET COMPANY
Reel/Frame 042741/0901 →