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Assignee3M Innovative Properties Company
InventorsBecky A. Jetto, David T. Amos, Jeffrey A. Peterson, Scott A. Van Wert
Estimating the term…
Primer layers for adhesion of a pressure sensitive adhesive material to a substrate are provided. The primer layer comprises a crosslinked polymer. In some embodiments, the primer layer has an atomic nitrogen content of greater than 6 wt %, and in some a ratio of atomic weight percent of oxygen to nitrogen of less than 3.0. In some embodiments the crosslinked polymer is the reaction product of an amine-functional base polymer such as a polyethylenimine (PEI) and a crosslinker, which may be a polyaziridine crosslinker. Also provided are two-layer constructions comprising the primer layer and a substrate layer; and tapes, such as flexographic plate mounting tapes, comprising the two-layer construction and a pressure sensitive adhesive layer.
A primer layer for adhesion of a pressure sensitive adhesive material to a substrate, the primer layer comprising a crosslinked polymer which is the reaction product of an amine-functional base polymer and a polyaziridine crosslinker, wherein the amine-functional base polymer is a branched polyethylenimine.
A tape comprising a primer layer comprising a crosslinked polymer, which is the reaction product of a branched polyethylenimine and pentaerythritol tris (3-(1-aziridinyl) propionate), immediately adjacent to and directly bound to a substrate layer and a first pressure sensitive adhesive layer comprising a pressure sensitive adhesive material, wherein the pressure sensitive adhesive layer is immediately adjacent to and directly bound to the primer layer.
Dependencies are inferred from the claim text.