Ball and process and composition of matter for production thereof
AssigneeAcushnet Company
InventorWarren M. Dusbiber
Life of this patent
Estimating the term…
Abstract
A polyurethane golf ball is disclosed. The golf ball comprises a core and a cover at least one of which is a polyether urethane prepolymer with a curing agent selected from the group consisting of trifunctional polyols, tetrafunctional polyols and amine-type curing agents having at least two reactive amine groups.
Claims21
A golf ball having the following physical characteristics:
- ______________________________________ Diameter less than 1.70 inches PGA Compression at least 25 Hardness Shore "C" Scale at least 60 Rebound 72 inch at least 48 inches Initial Velocity USGA at least 230 feet/second ______________________________________
- said golf ball comprising a core and a cover, at least one of which is prepared from a composition comprising a prepolymer of a polyether and a diisocyanate and a curing agent selected from the group consisting of trifunctional and tetrafunctional polyols and curing agents capable of curing the prepolymer and having at least two reactive amine groups, the prepolymer and the curing agent being present in an equivalent weight ratio of 1:1 .+-. 20%.
In a golf ball consisting of a plurality of portions, one portion of said golf ball being prepared from a composition comprising a prepolymer of a polyether and a diisocyanate and a curing agent selected from the group consisting of trifunctional and tetrafunctional polyols and curing agents capable of curing the prepolymer and having at least two reactive amine groups, the prepolymer and the curing agent being present in an equivalent weight ratio of 1:1 .+-. 20%, said plurality of portions of said golf ball including said one portion being selected to yield a golf ball having the following physical characteristics:
- ______________________________________ Diameter less than 1.70 inches PGA Compression at least 25 Hardness Shore "C" Scale at least 60 Rebound 72 inch at least 48 inches Initial Velocity USGA at least 230 feet/second ______________________________________
- and wherein the ball is a two piece golf ball comprising a unitary core and a cover, one of which is the said portion.
Dependencies are inferred from the claim text.