Adhesive film including a (meth)acrylate matrix including a curable epoxy/thiol resin composition, tape, and method
Assignee3M Innovative Properties Company
InventorsEric G. Larson, Michael A. Kropp, Matthew J. Kryger, Shijing Cheng
Life of this patent
Estimating the term…
Abstract
A thermally curable adhesive film, a tape, and a method of making the tape, wherein the film includes: a crosslinked (meth)acrylate matrix; and a thermally curable, one-part epoxy/thiol resin composition incorporated within the crosslinked (meth)acrylate matrix; wherein the thermally curable, one-part epoxy/thiol resin composition comprises: an epoxy resin component comprising an epoxy resin having at least two epoxide groups per molecule; a thiol component comprising a polythiol compound having at least two thiol groups; a nitrogen-containing catalyst for the epoxy resin; and an organic acid.
Claims17
A thermally curable adhesive film comprising:
- a crosslinked (meth)acrylate matrix;
- and
- a thermally curable, one-part epoxy/thiol resin composition incorporated within the crosslinked (meth)acrylate matrix;
- wherein the thermally curable, one-part epoxy/thiol resin composition comprises:
- an epoxy resin component comprising an epoxy resin having at least two epoxide groups per molecule;
- a thiol component comprising a polythiol compound having at least two thiol groups;
- a nitrogen-containing catalyst for the epoxy resin;
- and
- an organic acid, the organic acid being soluble in the epoxy/thiol resin composition, wherein soluble in the epoxy/thiol resin composition means when the organic acid is incorporated in the epoxy/thiol resin in an amount of 5 wt-%, it produces an epoxy/thiol resin composition with at least 80% clarity and at least 80% transmission.
Dependencies are inferred from the claim text.