Coating material and its use as primer and extender

Details Coating material and its use as primer and extender Coating material and its use as primer and extender

C - Chemistry, Metallurgy

08

G

400/1324

C08G 18/62 (2006.01) C08G 18/40 (2006.01) C09D 5/34 (2006.01)

Patent

CA 1319211

Abstract The invention relates to a coating material and its use as a primer or fiber. Previous coating materials lead to the formation of bubbles at high layer thickness and when drying by heating. The new coating materials are intended to be bubble-free when dried at higher layer thicknesses. Aside from pigments and/or extenders, the coating material contains solvents and, if necessary, conventional paint auxiliaries in a vehicle mixture, comprising essentially 60 - 75% by weight of a hydroxy-functional copolymer, 1 - 5% by weight of an ester-soluble nitrocellulose and 25 - 35% by weight of difunctional or multifunctional polyisocyanate. It can be cured without forming bubbles even when applied in thick layers.

552546

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