US 2025/0084198 A1 · COMPOSITE ADHESIVES

Abstract

Described herein is an adhesive composite composition. The composition comprises: a plurality of polymeric microspheres dispersed within a (meth)acrylate-based matrix, wherein the polymeric microspheres are derived from 20 to 99 wt % of a (meth)acrylate monomer having a Tg above room temperature and at least 1 wt % of a polar (meth)acrylate monomer; and the (meth)acrylate-based matrix is derived from a C1 to C20 (meth)acrylate ester monomer and at least 1 wt % of a (meth)acrylate macromer. In some embodiments, these composite adhesives show good impact resistance and good shear. In one embodiment, an ionic liquid is added to the adhesive composite composition to aid in electro-debonding of articles.

Claims42

Dependent claims

A polymerizable composition comprising:

(i) a polymerizable matrix comprising:
(a) a (meth)acrylate macromer, wherein the (meth)acrylate macromer comprises a poly(ethylene oxide) group, a poly(propylene oxide) group, a poly(ethylene oxide-co-propylene oxide), a poly(tetrahydrofuran) group, or combinations thereof;
(b) one or more of a C1 to C20 (meth)acrylate ester monomer;
and
(c) a cross-linking agent;
and
(ii) a plurality of polymeric microspheres, wherein the polymeric microspheres are derived from at least 20 to at most 99 wt % of a (meth)acrylate monomer having a Tg above room temperature and at least 1 wt % of a polar (meth)acrylate monomer.

4 more elements

Dependencies are inferred from the claim text.

Composite adhesives

Life of this patent

Composite adhesives

Life of this patent

Abstract

Claims42