Process for the preparation of coatings from polyurethane...

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

C - Chemistry, Metallurgy

09

D

117/57

C09D 175/04 (2006.01) B05D 1/02 (2006.01) B05D 7/24 (2006.01) C08G 18/08 (2006.01) C08G 18/10 (2006.01)

Patent

CA 1291377

PROCESS FOR THE PREPARATION OF COATINGS FROM POLYURETHANE SINGLE COMPONENT SYSTEMS AND STEAM Abstract of the Disclosure 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°C to 500°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 run- off.

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