Golf ball

• US 10,188,912 B2
• Filed: 08/25/2014
• Issued: 01/29/2019
• Est. Priority Date: 12/15/2005
• Status: Active Grant

• Current Assignee: Acushnet Company (FILA Holdings Corp.)
• Original Assignee: Acushnet Company (FILA Holdings Corp.)
• Inventors: Sullivan, Michael J., Binette, Mark L., Aoyama, Steven
• Primary Examiner(s): Gorden, Raeann
• Application Number:
  US14/467,083
• Publication Number:
  US 20140364253A1
• Time in Patent Office: 1,618 Days
• Field of Search: 473373, 473374
• CPC Class Codes: A63B 37/0039 characterised by the material
• CPC Class Codes: A63B 37/0043 Hardness
• CPC Class Codes: A63B 37/0044 Hardness gradient
• CPC Class Codes: A63B 37/0045 Thickness
• CPC Class Codes: A63B 37/0049 Flexural modulus; Bending stiffness
• CPC Class Codes: A63B 37/0051 Materials other than polybutadienes; Constructional details
• CPC Class Codes: A63B 37/00621 Centre hardness
• CPC Class Codes: A63B 37/0063 Hardness gradient
• CPC Class Codes: A63B 37/0064 Diameter
• CPC Class Codes: A63B 37/0072 with a specified number of layers
• CPC Class Codes: A63B 37/0074 Two piece balls, i.e. cover and core
• CPC Class Codes: A63B 37/0075 Three piece balls, i.e. cover, intermediate layer and core
• CPC Class Codes: A63B 37/0076 Multi-piece balls, i.e. having two or more intermediate layers
• CPC Class Codes: A63B 37/0077 Physical properties
• CPC Class Codes: A63B 37/008 Diameter
• CPC Class Codes: A63B 37/0083 Weight; Mass
• CPC Class Codes: A63B 37/0092 Hardness distribution amongst different ball layers
• CPC Class Codes: C08K 5/098 Metal salts of carboxylic acids
• CPC Class Codes: C08L 23/06 Polyethene
• CPC Class Codes: C08L 23/0869 Acids or derivatives thereof
• CPC Class Codes: C08L 23/0876 : Neutralised polymers, i.e. ionomers
• CPC Class Codes: C08L 51/06 : grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
• CPC Class Codes: C08L 75/04 : Polyurethanes

Abstract

The present invention is directed to golf balls having a diameter of greater than 1.68 inches and including at least one layer formed from an HNP composition.

Claims

1. A two-piece golf ball having a diameter of 1.70 inches or greater, a weight of from 45 g to 46 g, an MOI of 86 g·

cm² or greater, and consisting essentially of a center and a cover layer, wherein the center has a diameter of 1.60 inches or greater, a positive hardness gradient of at least 3 Shore C units, and is formed from a highly neutralized polymer composition.

2. The golf ball of claim 1, wherein the diameter of the golf ball is 1.75 inches or greater.

3. The golf ball of claim 1, wherein the diameter of the golf ball is 1.80 inches or greater.

4. The golf ball of claim 1, wherein the golf ball has an MOI of 90 g·

cm² or greater.