Radiation-curable water-emulsifiable polyisocyanates
First Claim
Patent Images
1. A water-emulsifiable, radiation-curable polyisocyanate (A), comprising as synthesis components:
- a) at least one organic di- or polyisocyanate;
b) at least one compound having at least one isocyanate-reactive group and at least one selected from the group consisting of a free-radically polymerizable unsaturated group, a cationically polymerizable group and both a free-radically polymerizable unsaturated group and a cationically polymerizable group;
c) optionally, at least one further organic di- or polyisocyanate, different than a)d) at least one compound having precisely one isocyanate-reactive group and at least one saturated dispersive group,e) optionally, at least one compound having at least two isocyanate-reactive groups, andf) optionally, compounds different than a) to d) and having at least one isocyanate-reactive group,with the proviso that compounds comprising capped amino groups, carbamate end groups and/or urea end groups in combination with anionic dispersive compounds are excluded as synthesis components, andwherein the isocyanate content, calculated as NCO with the molecular weight 42 g/mol, is at least 3% by weight and up to 25% by weight, andthe free-radically polymerizable unsaturated group and cationically polymerizable group are optionally substituted acryloyl groups or optionally substituted vinyl ether groups.
1 Assignment
0 Petitions
Accused Products
Abstract
The invention relates to radiation-curable, water-emulsifiable compounds containing isocyanate groups or capped isocyanate groups, and to their use.
-
Citations
17 Claims
-
1. A water-emulsifiable, radiation-curable polyisocyanate (A), comprising as synthesis components:
-
a) at least one organic di- or polyisocyanate; b) at least one compound having at least one isocyanate-reactive group and at least one selected from the group consisting of a free-radically polymerizable unsaturated group, a cationically polymerizable group and both a free-radically polymerizable unsaturated group and a cationically polymerizable group; c) optionally, at least one further organic di- or polyisocyanate, different than a) d) at least one compound having precisely one isocyanate-reactive group and at least one saturated dispersive group, e) optionally, at least one compound having at least two isocyanate-reactive groups, and f) optionally, compounds different than a) to d) and having at least one isocyanate-reactive group, with the proviso that compounds comprising capped amino groups, carbamate end groups and/or urea end groups in combination with anionic dispersive compounds are excluded as synthesis components, and wherein the isocyanate content, calculated as NCO with the molecular weight 42 g/mol, is at least 3% by weight and up to 25% by weight, and the free-radically polymerizable unsaturated group and cationically polymerizable group are optionally substituted acryloyl groups or optionally substituted vinyl ether groups. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
-
Specification