Mixture from urethane(meth)acrylate, preferably constructed from e.g. 1,6-hexamethylene diisocyanate, isophorone diisocyanate, (cyclo)aliphatic, preferably aliphatic polyesterdiol and (meth)acrylate, useful to coat e.g. wood and paper

摘要

Mixture from urethane(meth)acrylate (A), preferably constructed from (a1) 1,6-hexamethylene diisocyanate, (a2) isophorone diisocyanate, (b1) at least an aliphatic diol, (b2) at least a (cyclo)aliphatic, preferably aliphatic polyesterdiol, (c) at least a hydroxy functional epoxy(meth)acryate, (d) dimethylol propionic acid, (e) at least a hydroxydione containing salt for partial neutralization of the acid group in (d), (f) optionally at least a monoalcohol, and (g) a compound with primary and/or secondary amino group; and (B) at least a low molecular (meth)acrylate. Mixture from urethane(meth)acrylate (A), preferably constructed from (a1) 1,6-hexamethylene diisocyanate, (a2) isophorone diisocyanate, (b1) at least an aliphatic diol (in which the hydroxyl groups are in 1,2-1,5-position), (b2) at least an aliphatic and/or cycloaliphatic, preferably aliphatic polyesterdiol with an weight average molecular weight of 700-2000 and an acid number of = 20 mg potassium hydroxide/g, according to DIN 53240, (c) at least a hydroxy functional epoxy(meth)acryate, (d) dimethylol propionic acid, (e) at least a hydroxydione containing salt for partial neutralization of the acid group in (d), (f) optionally at least a monoalcohol having one hydroxy function, and (g) a compound with primary and/or secondary amino group; and (B) at least a low molecular (meth)acrylate having at least two, preferably at least three (meth)acrylate function, provided that the mixture from (A) and (B) contains at least 3, preferably 4 mole of (meth)acrylate function/kg of solid content.