US 2020/0347273 A1 · RELEASE LINERS FOR LASER CUT ADHESIVES

Abstract

Various embodiments described herein relate to a laminate. The laminate includes a release liner comprising at least one polyolefin and an adhesive layer. The adhesive layer contacts a region of a first major surface of the release liner. Upon exposure to laser electromagnetic radiation, the adhesive layer is configured to absorb at least 55% (in some embodiments, at least 60%, 65%, 70%, 75%, 80%, 85%, 90%, 95%, or even 100%) of the laser electromagnetic radiation and the release liner absorbs no greater than 45% (in some embodiments, no greater than 40%, 35%, 30%, 25%, 20%, 15%, 10%, 5%, or even 0%) of the laser electromagnetic radiation.

Claims15

Dependent claims

A laminate comprising:

a release liner comprising at least one polyolefin;
and
an adhesive layer, the adhesive layer contacting a region of a first major surface of the release liner,
wherein upon exposure to laser electromagnetic radiation, the adhesive layer is configured to absorb at least 55% of the laser electromagnetic radiation and the release liner absorbs no greater than 45% of the laser electromagnetic radiation.

1 more element

Dependencies are inferred from the claim text.

Facts

Application

16/760,769Filed 19 Nov 2018

Priority

21 Nov 2017

Published

5 Nov 2020

Term ends

Not estimatedThe source records don’t support an estimate.

Classification14 codes

C09J 7/00
Adhesives in the form of films or foils
C09J 7/385
Based on macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds: acrylic polymers
C09J 7/38
Characterised by the adhesive composition: pressure-sensitive adhesives [PSA]
C09J 7/401
Characterised by release liners: characterised by the release coating composition

Release liners for laser cut adhesives

Life of this patent

Release liners for laser cut adhesives

Life of this patent

Abstract

Claims15