Patent ID: 6231922
Filing Date: 2001-05-15
Classification: C08K,C09D,Y10T

Abstract:
A linerless label comprising:(a) a substrate having a top face and a bottom face;(b) a pressure sensitive adhesive present on the bottom face of the substrate;(c) a thermal sensitive layer present on the top face of the substrate; and(d) a release coating having a low adherence to said pressure sensitive adhesive, present directly on and covering said thermal sensitive layer, said release coating comprising:(i) about 50 to about 75 wt. % of an ultraviolet curable silicone compound;(ii) about 8 to about 25 wt. % of a reactive solvent;(iii) about 5 to about 25 wt. % of a reactive diluent;(iv) about 6 to about 12 wt. % of a wax-treated silica powder; and(v) about 2 to about 4 wt. % of a photoinitiator.