US 2012/0234479 A1 · COMPOSITE COATING MATERIAL AND THE PRODUCTION METHOD OF THE SAME

Abstract

The production method of the coating material comprising the steps of applying and drying liquid polyurethane (PU) material onto a release paper in order to form three polyurethane (PU) layers, rolling the composite layer and separating the release paper to form the composite coating material for covering the outer shells of electronic devices. The polyurethane (PU) composite coating material thereby produced comprises at least a colored surface layer and a substrate layer. The surface of the composite coating material is colored and has a relief-like pattern, which can provide users with a better visual or touch effect.

Claims9

Dependent claims

The production method of composite coating material for coating an electronic device, comprising the steps of:

(1) applying a first layer of liquid polyurethane (PU) material onto a surface of a release paper with a surface pattern thereon;
(2) drying said first polyurethane (PU) layer;
(3) applying a second layer of liquid polyurethane (PU) material on said first polyurethane (PU) layer;
(4) drying said second polyurethane (PU) layer;
(5) applying a third layer of liquid polyurethane (PU) material on said second polyurethane (PU) layer;
(6) drying said third polyurethane (PU) layer so that the first, second and third layers are formed as a composite layer;
and
(7) rolling said composite layer and separating said release paper therefrom to form said composite coating material.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application

13/481,949Filed 28 May 2012

Priority

18 Jun 2009

Published

20 Sep 2012

Term ends

Not estimatedThe source records don’t support an estimate.

Classification6 codes

D21H 19/62
Characterised by the other ingredients, e.g. the binder or dispersing agent: macromolecular organic compounds or oligomers thereof obtained…
D21H 13/50
Non-siliceous fibres, e.g. from metal oxides: carbon fibres
D21H 19/82
Paper comprising more than one coating: superposed
Y10T 428/24802
Structurally defined web or sheet [e.g., overall dimension, etc.]: discontinuous or differential coating, impregnation or bond [e.g., artwork,…

Composite coating material and the production method of the same

Life of this patent

Composite coating material and the production method of the same

Life of this patent

Abstract

Claims9