THREE-COVER-LAYER GOLF BALL HAVING TRANSPARENT OR PLASTICIZED POLYAMIDE INTERMEDIATE LAYER

摘要

A golf ball includes a core and a three-layer cover disposed adjacent the core. The three-layer cover includes an inner cover, an intermediate cover, and an outer cover. The inner cover includes a non-ionomeric E/Y copolymer where E is an olefin and Y is a carboxylic acid. The inner cover has a hardness of about 45 to 68 Shore D. The outer cover includes a castable thermoset polyurethane and has a hardness of about 40 to 62 Shore D. The intermediate cover layer, disposed between the inner and outer cover layers, is formed from a polyamide composition, where the polyamide composition includes a transparent polyamide having a light transmission of about 50% or greater.

主权项

1. A golf ball comprising:
a core; and a cover disposed adjacent the core, the cover comprising:
a non-ionomeric inner cover layer comprising an E/Y copolymer where E is an olefin and Y is a carboxylic acid, the inner cover being disposed about the core and having a hardness of 45 Shore D to 68 Shore D;a castable thermoset polyurethane outer cover layer having a hardness between 40 Shore D and 62 Shore D; andan intermediate cover layer disposed between the inner and outer cover layers, the intermediate layer comprising a polyamide composition; wherein the polyamide composition comprises a transparent polyamide having a light transmission of about 50% or greater.