Vapor-phase cure of coating compositions containing an aliphatic

Stock material or miscellaneous articles – Composite – Of polyamidoester

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427340, 4273882, 427393, 4273935, 4284251, 4284258, 528 78, 528 82, B05D 302, B32B 2700, B32B 2740

Patent

active

046770291

ABSTRACT:
An aliphatic isocyanate (such as the biuret of 1,6-diisocyanatohexane) is combined with a tertiary amine polyahl (such as a tertiary amine polyol) and coated onto a substrate. The coated substrate is then exposed to the vapor of a urethane catalyst for curing to a tack-free state. This process permits the preparation of coatings which will cure rapidly and which are light stable. These coatings have utility in the field of automotive topcoats.

REFERENCES:
patent: 4396647 (1983-08-01), Linden

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