Process for the preparation of coatings from polyurethane single

Details Process for the preparation of coatings from polyurethane single Process for the preparation of coatings from polyurethane single

1988-05-13

1989-03-28

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...

525452, 525453, 525460, 528 76, 528 77, 528 80, 528 81, 528480, 528502, C08G 1810

Patent

active

048165425

ABSTRACT:
The present invention relates to a process for the preparation of coatings by reacting polyurethane single component systems, which preferably contain at least one prepolymer containing NCO groups in bonded form and a latent hardener, whereby the polyurethane single component system is mixed with steam at a temperature from 100.degree. C. to 500.degree. C., and fed under a pressure of 0.5 to 10 bars, and finally sprayed using a general spray method. The coatings so formed cure bubble free independent of the moisture content of the surroundings and without exhibiting coating mass runoff.

REFERENCES:
patent: 4720535 (1988-01-01), Schleier et al.

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