US 12,728,628 B2 · Article

Abstract

An article having recyclability properties including a combination of: (a) a polyolefin polymer; and (b) a solvent-borne adhesive composition having a recyclability property, wherein the recyclability property of the solvent-borne adhesive composition is such that when the article with the solvent-borne adhesive composition is reprocessed, the article with the solvent-borne adhesive composition exhibits less than a 40% decreased change in performance compared to a control article without the solvent-borne adhesive composition that is reprocessed the same way as the article with the solvent-borne adhesive composition; a recyclable laminate structure including at least: (a) at least a first polymer film layer; and (b) a layer of the above solvent-borne laminating adhesive composition; and a process for manufacturing the above recyclable laminate structure.

Claims12

Dependent claims

A second article comprising:

a melt blend of
(1) from 10 wt % to 50 wt % of polymer pellets of a reprocessed first article comprising
(a) polyolefin polymer consisting of polyethylene;
and
(b) a solvent-borne polyester-based adhesive composition;
and
(2) from 90 wt % to 50 wt % of polymer pellets of a reprocessed control film comprising polyolefin polymer consisting of polyethylene, wherein weight percent of (1) and (2) is based on the total weight of the second article;
wherein the polyolefin polymer in the second article consists of one or more reprocessed polyethylenes, and the second article exhibits less than a 40 percent decreased change in performance compared to a control article consisting of melt blended pellets of the reprocessed control film, the control article being substantially identical to the second article except that the control article contains no reprocessed first article.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application

18/254,161Filed 9 Nov 2021 · us provisional application

Priority

8 Dec 2020

Published

US 2024/0001657 A14 Jan 2024

Granted

8 Sep 2026

Term ends

Not estimatedThe source records don’t support an estimate.

Classification24 codes

B32B 27/08
As the main or only constituent of a layer, which is next to another layer of the same or of a different material: of synthetic resin
B32B 7/12
Interconnection of layers: using interposed adhesives or interposed materials with bonding properties
B32B 27/18
Layered products comprising a layer of synthetic resin: characterised by the use of special additives
B32B 27/26
Characterised by the use of special additives: using curing agents

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Abstract

Claims12