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US 3,979,126 AGranted
Ball and process and composition of matter for production thereof
AssigneeAcushnet Company
InventorWarren M. Dusbiber
Life of this patent
Estimating the term…
Abstract
A solid plastic polyurethane golf ball is disclosed. The golf ball comprises a polyether urethane prepolymer with a curing agent.
Claims14
A polyurethane 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 ______________________________________
- prepared from the 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%.
Dependencies are inferred from the claim text.