Active energy ray curable aqueous emulsions

摘要

The present invention relates to an aqueous radiation curable composition comprising: (I) at least one ethylenically unsaturated compound (A), and (II) at least one emulsifier (B) comprising alternating polyalkylene oxide segments, wherein said emulsifier optionally bears one or more groups selected from alkyl groups, aryl groups hydroxyl groups and/or ethylenically unsaturated groups, and wherein said emulsifier (B) has an HLB value of at least 4.5, preferably at least 7. The compositions of the invention are particularly suited for the manufacture of sprayable eco-friendly hardcoats, but they are also suitable for the making of inks, overprint varnishes and adhesives, alone or in combination with e.g. a water-borne polymer dispersion.

主权项

1. An aqueous radiation curable composition comprising:
(I) at least one ethylenically unsaturated compound (A), and (II) at least one emulsifier (B) consisting essentially of alternating polyalkylene oxide segments,
wherein said compound (A) is a water-insoluble compound,wherein said emulsifier (B) optionally bears one or more groups selected from at least one of alkyl groups, aryl groups, hydroxyl groups and copolymerizable ethylenically unsaturated groups,wherein said emulsifier (B) has an HLB value of at least 5 and at most 19, andwherein said emulsifier (B) is represented by the general formula (I):
R—O—(R1—O)x—(R2—O)y—(R3—O)z—R′wherein
each of R1, R2 or R3 independently is a linear or branched C2-C12 alkyl;R1≠R2 and R3≠R2;X=6-100;Y=6-100;Z=0-100; andR and R′ each independently is selected from the following: linear or branched C1-C18 alkyl, linear or branched C6-C24 aryl, (meth)acryloyl or —H.