Flexible, and post capable of forming coating system for veneer wood - on the basis of polyurethane dispersions, to a process for its production and its use

摘要

It is capable of forming a flexible, and post coating system for veneer wood on the basis of at least one polyurethane - dispersion is described which has been prepared by the fact that, dollars a a) 25 to 250 w - parts of a poyol - component (a), dollar a b) 50 to 250 w - parts of a polyisocyanate - component (b), dollar a is c) 5 to 50 w - parts of a polyamine - component (c), dollar a d) 0 to 100 w - parts of a solvent - component (d), dollar a e) 150 to 1500 w - parts of water dollars a to a solvent-free or low-solvent polyurethane - dispersion and these are then converted by addition of dollars a f), if appropriate, 0,5 to 50 w - parts of a photoinitiator - component (e) and a g) usd 0,5 to 500 w - parts of a practice of this - component (f) a further processed to the end product is usd. Dollars a through the use of the coating system is based on (radiation-curing) polyurethane - dispersions, not only can the preparation of industrially coated veneer wood the form of parts to be significantly simplified, but it is moreover, still in the directly post-forming method by means of the plastification of the veneer a plaster effect is achieved, as a function of the deformability of the veneer small bending radii and a vapor deposition or moistening of the veneer is no need for.