Isocyanate-crosslinked coatings having reduced yellowing

Details Isocyanate-crosslinked coatings having reduced yellowing Isocyanate-crosslinked coatings having reduced yellowing

1995-04-24

1996-05-28

Beck, Shrive

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...

4273882, B05D 716, C08G 1880

Patent

active

055212727

ABSTRACT:
A clear or colorless coating that is free of yellow discoloration, and a method for the production thereof, utilizing a pyrazole compound as a blocking agent for the blocked polyisocyanate employed in the coating composition.

REFERENCES:
patent: 4008247 (1977-02-01), Tucker
patent: 4546046 (1985-10-01), Etzell et al.
patent: 4584354 (1986-04-01), Hudecek et al.
patent: 4623731 (1986-11-01), Ivanov et al.
patent: 4976837 (1990-12-01), Hughes et al.
patent: 5216078 (1993-06-01), Cook et al.
The Chemistry and Technology of Blocked Isocyanates. Cooray et al, Paint and Resin, Oct. 1988, pp. 18-19.

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