Two-component polyurethane top coat for golf balls

Details Two-component polyurethane top coat for golf balls Two-component polyurethane top coat for golf balls

1998-07-20

2000-01-25

Gorr, Rachel

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From reactant having at least one -n=c=x group as well as...

528 83, 524872, 473351, 473371, C08G 1879

Patent

active

060180129

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.

REFERENCES:
patent: 5409233 (1995-04-01), Kennedy
patent: 5459220 (1995-10-01), Kennedy
patent: 5461109 (1995-10-01), Blair et al.
patent: 5494291 (1996-02-01), Kennedy
patent: 5606004 (1997-02-01), Brahm et al.
patent: 5820491 (1998-10-01), Hatch et al.

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