Patent ID: 8163390
Filing Date: 2012-04-24
Classification: C08G,C09D,Y10T

Abstract:
1. A polyurethane containing allophanate groups and comprising as synthesis components (a) at least one organic aliphatic, aromatic or cycloaliphatic di- or polyisocyanate, (b) at least one compound having at least one isocyanate-reactive group and at least one free-radically polymerizable unsaturated group, (c) optionally, at least one compound having precisely two isocyanate-reactive groups, (d) optionally, at least one compound having at least three isocyanate-reactive groups, (e) optionally, at least one compound having precisely one isocyanate-reactive group, (f) at least one compound having at least one organosilicon group and precisely one isocyanate-reactive group, and (g) optionally, at least one compound having at least one isocyanate-reactive group and at least one dispersive group, wherein at least 20 mol % of the compound (b) having at least one isocyanate-reactive group and at least one free-radically polymerizable unsaturated group is incorporated via allophanate groups into said polyurethane.