Adhesives for thermally shrinkable films or labels
AssigneeNational Starch and Chemical Investment Holding Corporation
InventorsZiyi Hu, Charles W. Paul, Peter D. Pierce
Life of this patent
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Abstract
Thermally shrinkable films or labels having coated thereon a radiation curable adhesive; and a process for applying thermally shrinkable films or labels to containers comprising the steps of a) coating at least a portion of a thermally shrinkable but unshrunken film or label segment with a radiation curable adhesive; b) applying the film or label to the longitudinal surface of the container; c) subjecting the radiation curable adhesive to a radiation source to effect curing thereof and, d) subjecting the container to heat to shrink the film or label onto the container so as to permanently affix it thereto.
Claims17
A thermally shrinkable film or label having coated thereon a radiation curable adhesive composition comprising an epoxidized block copolymer and/or a cycloaliphatic epoxide, said adhesive composition having a viscosity at its application temperature of less than about 2,000 cps.
A process for applying a thermally shrinkable film or label to a container comprising the steps of:
- (a) coating a radiation curable adhesive on at least a portion of a thermally shrinkable but unshrunken film or label segment;
- (b) applying the film or label to the longitudinal surface of the container;
- (c) subjecting the radiation curable adhesive to a radiation source to effect curing thereof;
- and
- (d) subjecting the container to heat to shrink the film or label onto the container so as to permanently affix it thereto.
Dependencies are inferred from the claim text.