The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 25, 2000
Filed:
Jul. 20, 1998
Steven C Crast, Oceanside, CA (US);
Ramon Buella Dineros, Oceanside, CA (US);
Callaway Golf Company, Carlsbad, CA (US);
Abstract
A two component polyurethane top coat for use with golf balls includes a polyol component and a polyisocyanate component. The polyol component includes a polyester polyol resin containing a neopentyl glycol resin. A mixture of silane and aziridine is also preferably included in the polyol component. The polyisocyanate component includes a mixture of an isocyanate trimer of toluene diisocyanate (TDI) and a biuret of hexamethylene diisocyanate (HDI). The polyol and polyisocyanate components preferably include a two solvents forming a blend selected from the group consisting of ethyl acetate, butyl acetate, propyleneglycolmonomethylether acetate, toluene, or xylene. The coating can be applied directly to golf ball covers with a variety of chemistries without the need of a primer or basecoat. The top coat provides superior adhesion and abrasion resistance in addition to improving the drying and curing characteristics.