Coating compositions

Details Coating compositions Coating compositions

1988-08-04

1989-06-20

Welsh, Maurice J.

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...

C08G 1880

Patent

active

048410080

ABSTRACT:
A chipping resistant polyurethane coating composition which comprises:
(a) a polyisocyanate blocked with an oxime or a lactam or a polyurethane prepolymer having terminal isocyanate groups blocked with an oxime or a lactam;
(b) a polyaminepolyetherpolyester which is a condensate of a polyaminepolyether and an organic carboxylic acid, the polyaminepolyether being an adduct of an oxirane compound to a polyamine compound, a polyamidepolyamineopolyether which is an adduct of an oxirane compound to a polyamidepolyamine, the polyamidepolyamine being a condensate of a polyamine and an organic carboxylic acid; or a mixture of the polyaminepoly-etherpolyester and the polyamidepolyaminepolyether.
The composition in which an aromatic polyisocyanate or its prepolymer blocked with an oxime is curable at temperatures of about 90.degree.-100.degree. C.

REFERENCES:
patent: 4369301 (1983-01-01), Konig et al.

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