US 12,515,107 B2 · Multi-layer golf balls with in-situ adhesion promoter

Abstract

Casing compositions including carboxyl groups, cover compositions including nucleophile groups and an adhesion promoter capable of crosslinking carboxyl and nucleophile groups, and golf balls made from such compositions that have crosslinks between carboxyl groups in the casing composition and nucleophile groups in the cover composition. The nucleophile groups may be hydroxyl groups, amino groups, or other types of nucleophile groups. The adhesion promoter may be a polyaziridine. An acid catalyst may be used to facilitate the reaction between the nucleophile groups in the cover composition and the adhesion promoter. The type and concentration of the components in the casing and cover compositions, including the adhesion promoter, affect the adhesion between golf balls having components made from such compositions and, thus, can be used to produce a golf ball having increased durability.

Claims20

Dependent claims

A golf ball, comprising:

a core;
a casing layer disposed on the core, the casing layer formed from a casing composition comprising carboxyl groups;
a cover disposed on the casing layer and formed from a cover composition comprising nucleophile groups and a polyaziridine adhesion promoter;
and
crosslinks between the carboxyl groups of the casing layer and the nucleophile groups of the cover layer.

2 more elements

Dependencies are inferred from the claim text.

Multi-layer golf balls with in-situ adhesion promoter

Life of this patent

Multi-layer golf balls with in-situ adhesion promoter

Life of this patent

Abstract

Claims20