Powder surface coatings

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1984-06-19

1985-02-19

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

045006962

ABSTRACT:
Powder surface coatings of polyols and a polyisocyanate component, wherein blocked adducts of 2-methyl-1,5-pentanediisocyanate, 2-ethyl-1,4-butane diisocyanate or a mixture thereof are used is the polyisocyanate component, according to the formulas (I) and (II): ##STR1## wherein the diisocyanate mixture of (I) and (II) has about 88 to 99% by weight of (I) and about 12 to 1% by weight of (II), and wherein the latent NCO content of the blocked adducts is about 7 to 18% by weight, and the free NCO content is less than or equal to 2% by weight.

REFERENCES:
patent: 4354014 (1982-10-01), Wolf et al.
patent: 4383076 (1983-05-01), Wolf et al.

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