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US 11,306,224 B2Granted
Articles comprising (meth)acrylate pressure-sensitive adhesive with enhanced adhesion to wet surfaces
Assignee3M Innovative Properties Company
InventorsJoon Chatterjee, Vinod P. Menon, Roberta K. Sadi
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Abstract
Articles comprising pressure-sensitive adhesives with enhanced adhesion to wet surfaces, obtained from crosslinking a pre-adhesive composition comprising poly(meth)acrylate macromolecules that comprise a number-average molecular weight of from about 25000 to about 200000, and methods of using such articles.
Claims20
A wet-stick pressure-sensitive adhesive article, comprising:
- a substrate comprising a wet-stick pressure-sensitive adhesive on a major surface of the substrate,
- the wet-stick pressure-sensitive adhesive being a crosslinking reaction product of a pre-adhesive composition,
- the pre-adhesive composition comprising poly(meth)acrylate macromolecules characterized by a number-average molecular weight of about 25000 to about 200000,
- wherein the poly(meth)acrylate macromolecules are present in an amount of at least 90 wt % of the pre-adhesive composition, and
- wherein the pre-adhesive composition exhibits a glass transition temperature (Tg) of less than minus 20° C. and exhibits a storage modulus of about 4 Pa to about 10000 Pa at 25° C.
2 more elements
Dependencies are inferred from the claim text.