Functionalized polyester polymers and film articles

Patent metadata

Field	Value
Publication number	US-10160829-B2
Application number	US-201615743939-A
Country	US
Kind code	B2
Filing date	Aug 16, 2016
Priority date	Aug 20, 2015
Publication date	Dec 25, 2018
Grant date	Dec 25, 2018

Abstract

Polyester 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 polyester polymer comprises polymerized units have the general structure (A) wherein L 1 and L 2 are independently divalent linking groups comprising an ester group; and R A 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 polyester polymers are described.

First claim

What is claimed is:

1. A polyester polymer comprising polymerized units having the structure

wherein L 1 and L 2 are independently divalent linking groups comprising an ester group; and
R A is an adhesion promoting group bonded to the oxygen atom by means of an ionic or covalent bond and R A comprises an organophosphonium cation, a N-heterocyclic cation, or an aziridine group.

2. The polyester polymer of claim 1 wherein the polyester polymer is a sulfopolyester.

3. A polyester film comprising the polyester polymer of claim 1 .

4. A polyester polymer comprising polymerized units having the structure

R is an adhesion promoting group (R A ) bonded to the oxygen atom by means of an ionic or covalent bond.

5. The polyester polymer of claim 4 wherein R A comprises a cation of a salt of a base, an organophosphonium cation, a N-heterocyclic cation, an amine, an aziridine group, an alkoxy silane group, an ethylenically unsaturated group, or a (meth)acrylic group.

6. The polyester polymer of claim 4 wherein the polyester polymer is a sulfopolyester.

7. A film comprising a primer layer, the primer layer comprising a polyester polymer having the structure

wherein L 1 and L 2 are independently divalent linking groups comprising an ester group; and
R A is an adhesion promoting group bonded to the oxygen atom by means of an ionic or covalent bond, wherein R A comprises a cation of a salt of a base, an organophosphonium cation, a N-heterocyclic cation, an amine, an aziridine group, an alkoxy silane group, an ethylenically unsaturated group, or a (meth)acrylic group.

8. A laminate comprising the film of claim 7 wherein the primer layer is bonded to a fluorine-containing polymer film.

9. The laminate of claim 8 wherein the fluorine-containing polymer film is a fluoropolymer comprising polymerized units selected from tetrafluoroethylene, vinylidene fluoride and hexafluoropropylene.

Assignees

• 3M Innovative Properties Co

Inventors

• Yang Yu
• Park Jiyoung
• Iyer Suresh S
• Krohe Christopher W A
• Starkey Kyle P
• Fletcher Timothy D
• Zhu Dong-Wei
• Muehle Thomas E S
• Peterson Jeffrey A
• Blong Thomas J

Classifications

• Y10T428/28

  Web or sheet containing structurally defined element or component and having an adhesive outermost layer · CPC title

• Y10T428/2852

  Adhesive compositions · CPC title

• C08G63/695

  containing silicon · CPC title

• C08L67/02

  Polyesters derived from dicarboxylic acids and dihydroxy compounds (C08L67/06 takes precedence) · CPC title

• C08G63/916

  Dicarboxylic acids and dihydroxy compounds · CPC title