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US 2021/0287575 A1Published application
Label assemblies for adverse environments
AssigneeAvery Dennison Corporation
InventorPavel JANKO
Life of this patent
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Abstract
Various labels for use in adverse environments are described. The labels are particularly well suited for applications in which a permanent label bond is required. The labels utilize a two stage adhesive which is initially in the form of a pressure sensitive adhesive (PSA) and then upon heating, converted to a permanent non-PSA.
Claims21
A method of labeling an article, the method comprising:
- providing an article having an outer surface;
- providing a label assembly comprising (i) a first face layer defining a first face and an oppositely directed second face, and (ii) a two stage adhesive disposed on at least one of the first face and the second face of the first face layer, the two stage adhesive exhibiting a first stage in which the adhesive is initially in the form of a pressure sensitive adhesive (PSA) and upon exposure to heat, converts from the PSA to a permanent, non-PSA,
- wherein the pressure sensitive adhesive comprises 10-90 wt % of an acrylic backbone base polymer having a molecular weight (Mw) of 5,000 to 1,000,000;
- adhering the adhesive of the label assembly to the outer surface of the article.
1 more element
Dependencies are inferred from the claim text.