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...
Reexamination Certificate
2005-04-05
2005-04-05
Gorr, Rachel (Department: 1711)
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...
C528S073000, C473S377000, C473S378000
Reexamination Certificate
active
06875837
ABSTRACT:
The present invention provides a coated golf ball having good appearance, excellent durability after repeated hitting, excellent abrasion resistance after washing by brushing and excellent stain resistance with a grass. The present invention relates to a coated golf ball formed by applying a paint on the surface of a golf ball body, wherein the paint comprises polyol containing urethane polyol as a main material and polyisocyanate curing agent, and the curing agent comprises 25 to 35% by weight of isocyanurate polyisocyanate derived from hexamethylene diisocyanate, 25 to 35% by weight of biuret polyisocyanate derived from hexamethylene diisocyanate and 35 to 50% by weight of isocyanurate polyisocyanate derived from isophorone diisocyanate.
REFERENCES:
patent: 5137972 (1992-08-01), Cook
patent: 6018012 (2000-01-01), Crast et al.
patent: 6096851 (2000-08-01), Maruoka et al.
Endo Seiichiro
Isogawa Kazuhiko
Gorr Rachel
Sumitomo Rubber Industries Ltd.
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