US 2017/0362469 A1 · DUAL-SIDED MULTI-LAYER ADHESIVE

Abstract

Dual-sided adhesive articles include a first crosslinked pressure sensitive adhesive layer with a first major surface and a second major surface, a second siloxane-based pressure sensitive adhesive layer with a first major surface and a second major surface, such that the first major surface of the second siloxane-based pressure sensitive adhesive layer is in contact with the second major surface of the first crosslinked pressure sensitive adhesive layer. The articles also include a release liner having a microstructured surface with an array of microstructures, where the microstructured surface is in contact with the second major surface of the second siloxane-based pressure sensitive adhesive layer. The microstructures of the microstructured surface of the second siloxane-based pressure sensitive adhesive layer are unstable when not in contact with the microstructured release liner, and disappear over time when in contact with a substrate.

Claims23

Dependent claims

A dual-sided adhesive article comprising:

a first crosslinked pressure sensitive adhesive layer with a first major surface and a second major surface, and a first surface energy;
a second siloxane-based pressure sensitive adhesive layer with a first major surface and a second major surface, a second surface energy, wherein the first major surface of
the second siloxane-based pressure sensitive adhesive layer is in contact with the second major surface of the first crosslinked pressure sensitive adhesive layer;
and
a release liner having at least one surface comprising a microstructured surface that comprises an array of microstructures, where the microstructured surface is in contact with the second major surface of the second siloxane-based pressure sensitive adhesive layer, and wherein the first surface energy is lower than the second surface energy.

2 more elements

A method of preparing an adhesive laminate, the method comprising:

Providing a dual-sided adhesive article comprising:
a first crosslinked pressure sensitive adhesive layer with a first major surface and a second major surface, and a first surface energy;
a second siloxane-based pressure sensitive adhesive layer with a first major surface and a second major surface, a second surface energy, wherein the first major surface of the second siloxane-based pressure sensitive adhesive layer is in contact with the second major surface of the first crosslinked pressure sensitive adhesive layer;
and
a release liner having at least one surface comprising a microstructured surface that comprises an array of microstructures, where the microstructured surface is in contact with the second major surface of the second siloxane-based pressure sensitive adhesive layer, and wherein the first surface energy is lower than the second surface energy;
removing the microstructured release liner from the second major surface of the second siloxane-based pressure sensitive adhesive layer;
and
contacting the exposed second major surface of the second siloxane-based pressure sensitive adhesive layer, which comprises a microstructured surface, to a first substrate.

5 more elements

Dependencies are inferred from the claim text.

Dual-sided multi-layer adhesive

Life of this patent

Dual-sided multi-layer adhesive

Life of this patent

Abstract

Claims23