US 2022/0062713 A1 · POLYURETHANE GOLF BALL

Abstract

A golf ball according to an embodiment of the present disclosure is covered with an injection-molded crosslinked polyurethane. The golf ball may have excellent scuff resistance and light resistance of a cover as well as excellent driving distance and spin by using a cover composition containing crosslinked polyurethane obtained by adding a crosslinking agent to thermoplastic polyurethane (TPU). A polyurethane cover composition according to an embodiment can make it possible to prepare a crosslinked polyurethane cover by injection molding without the burden of facility investment cost.

Claims10

Dependent claims

A golf ball comprising:

a core comprising a polybutadiene rubber;
an inner cover comprising an ionomer resin;
and
an outer cover comprising crosslinked polyurethane formed by reaction of thermoplastic polyurethane and a crosslinking agent,
wherein the crosslinking agent comprises an isocyanate crosslinking agent and a compound represented by Chemical Formula 1:
wherein
each of R1, R2 and R3 is independently H, OH or a C1-C10 alkoxy group, with one of R1, R2 and R3 being OH, and
each of x and y is independently an integer of 1-2.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application

17/370,193Filed 8 Jul 2021

Priority

KR 10-2020-010751626 Aug 2020

Published

3 Mar 2022

Term ends

Not estimatedThe source records don’t support an estimate.

Classification31 codes

A63B 37/00373
Covers: colour tone
A63B 37/0039
Intermediate layers, e.g. inner cover, outer core, mantle: characterised by the material
A63B 37/005
Golf balls: cores
A63B 37/0075
With a specified number of layers: three piece balls, i.e. cover, intermediate layer and core

Polyurethane golf ball

Life of this patent

Polyurethane golf ball

Life of this patent

Abstract

Claims10