Primer composition in thermally detachable multilayer structure bonded with thermosetting adhesives

Abstract

Thermoplastic primer compositions may include a high surface energy thermoplastic resin having a surface energy of 37 dynes/cm or greater, at a percent by weight (wt %) of 55 wt % to 90 wt %; a low surface energy thermoplastic resin having a surface energy of less than 37 dynes/cm, at 10 wt % to 45 wt %; wherein the thermoplastic primer composition has a glass transition temperature in the range of 60° C. to 120° C. Multilayer compositions may include a substrate having a surface energy of 37 dynes/cm or greater; a primer layer containing a thermoplastic primer composition; and one or more thermoset adhesive layers.

Dependencies are inferred from the claim text.