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US 11,898,069 B2Granted
Adhesive articles permitting damage free removal
Assignee3M Innovative Properties Company
InventorsBrett P. Krull, Dawud H. Tan, Saurabh Batra, Bryan L Gerhardt, Stephen M. Sanocki
Life of this patent
Estimating the term…
Abstract
The present disclosure provides adhesive articles that can be removed from surfaces without damage by having reduced or eliminated contribution of a core backing to peel force generated by the adhesive during removal. In some instances, this can be accomplished by a core that loses structural integrity in a direction normal to a plane defined by a major surface. In other instances, the contribution is reduced by compromising the interface between the core and a peelable adhesive layer.
Claims10
A method for making an adhesive article, the method comprising:
- providing a core having first and second opposing major surfaces and including a consolidatable core material;
- positioning a peelable adhesive on at least one of the major surfaces;
- during or after the positioning of the peelable adhesive, forming the adhesive article by consolidating a plurality of discrete regions of the core material to form consolidated discrete regions in the core in an arranged pattern of recesses, wherein the adhesive article is configured such that removal of the adhesive article from an adherend at a peel angle exceeding 35 degrees results in at least one of delamination of the peelable adhesive from the core or degradation of the core;
- and
- wherein the peelable adhesive contacts each of the consolidated discrete regions of the core.
2 more elements
Dependencies are inferred from the claim text.