US 2018/0371289 A1 · FUNCTIONALIZED POLYURETHANES POLYMERS AND FILM ARTICLES

Abstract

Polyurethane polymers are described comprising polymerized units comprising a hydroxy functional aromatic group wherein the hydroxy group has been functionalized with an adhesion promoting group. In some embodiments, the polyurethane polymer comprises polymerized units have the general structure wherein L1 and L2 are independently divalent linking groups comprising an urethane group; and RA is an adhesion promoting group bonded to the oxygen atom by means of an ionic or covalent bond. In other embodiments, film articles, laminates are described and methods of making functionalized polyurethane polymers are described.

Claims20

Dependent claims

A polyurethane polymer comprising polymerized units comprising a hydroxy functional aromatic group wherein the hydroxy group has been functionalized with an adhesion promoting group.

Dependencies are inferred from the claim text.

Facts

Application

15/777,728Filed 30 Nov 2016

Priority

9 Dec 2015

Published

27 Dec 2018

Term ends

Not estimatedThe source records don’t support an estimate.

Classification49 codes

C08J 7/043
Coating: improving the adhesiveness of the coatings per se, e.g. forming primers
B32B 15/08
Comprising metal 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 15/09
Of synthetic resin: comprising polyesters
B32B 15/095
Of synthetic resin: comprising polyurethanes

Functionalized polyurethanes polymers and film articles

Life of this patent

Functionalized polyurethanes polymers and film articles

Life of this patent

Abstract

Claims20