US 9,534,309 B2 · Coating method by electrocatalyzed chemical grafting of a surface of a substrate with a polymeric layer

Abstract

The present invention relates to a coating method by electrocatalyzed chemical grafting of a surface of a substrate with a polymeric layer characterized in that it comprises the following steps: a. a substrate is provided, b. a bath containing at least one polymerizable monomer via a radical route, at least one cleavable aryl salt, at least one reducing agent and at least one solvent is provided, in which a potential difference is applied, c. said substrate is immersed in said bath, d. a grafted polymer is obtained on the surface of said substrate. The invention also relates to a substrate obtained according to the coating method by electrocatalyzed chemical grafting, the surface of which is coated with a polymeric layer.

Claims14

Dependent claims

A coating method by electrocatalyzed chemical grafting of a substrate surface with a polymeric layer comprising:

a) providing a substrate;
b) applying a potential difference to a bath containing at least one radically polymerizable monomer, at least one cleavable aryl salt, at least one reducing agent, and at least one solvent;
c) immersing said substrate in said bath, and
d) grafting a polymer on the surface of said substrate,
wherein said monomer comprises at least one ethylenic bond;
wherein said potential difference is generated by a chemical cell created between two electrodes immersed in said bath,
wherein the two electrodes are different from the substrate.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application

13/996,614Filed 21 Dec 2011 · us provisional application

Priority

FR 10 6102222 Dec 2010

Published

US 2014/0001048 A12 Jan 2014

Granted

3 Jan 2017

Term ends

Not estimatedThe source records don’t support an estimate.

Classification7 codes

C25D 9/02
Electrolytic coating other than with metals: with organic materials
C08J 7/16
Chemical modification: with polymerisable compounds
C09D 5/4411
With polymers obtained by polymerisation reactions involving only carbon-to-carbon unsaturated bonds: homopolymers or copolymers of acrylates or…
C25D 13/04
Electrophoretic coating characterised by the process: with organic material

Coating method by electrocatalyzed chemical grafting of a surface of a substrate with a polymeric layer

Life of this patent

Coating method by electrocatalyzed chemical grafting of a surface of a substrate with a polymeric layer

Life of this patent

Abstract

Claims14