Double-sided pressure-sensitive adhesive tape and method of making
AssigneeMinnesota Mining and Manufacturing Company
InventorsWilliam K. Leonard, Kirit C. Mody, Richard J. Rolando
Life of this patent
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Abstract
A unified, composite tape structure comprising two outer pressure-sensitive adhesive layers and a backing joined via melt processing. At least one of the backing and two outer adhesive layers is not mutually coextensive. A method of making the tape comprising the use of melt processing is also disclosed.
Claims18
A composite tape comprising a backing with first and second major surfaces, a first layer of normally tacky pressure-sensitive adhesive on said first major surface, and a second layer of normally tacky pressure-sensitive adhesive on said second major surface, wherein said adhesive layers and said backing were simultaneously coextruded and at least one of said first layer of adhesive and said second layer of adhesive is non-coextensive.
Dependencies are inferred from the claim text.