# US 5,348,634 A · Method for coating metal plates

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- Number: US 5,348,634 A
- Document ID: US5348634A
- Status: Granted
- Kind: A
- Application number: 07/665,214
- Filed: 1991-03-05
- Granted: 1994-09-20
- Earliest claimed: 1990-03-14
- Assignees: Shinto Paint Co., Ltd.
- Inventors: Katsuhiko Matsuo; Kuninori Takeshi
- Web page: https://patentgrep.com/patent/US5348634A

## CPC

- C25D 13/20: Pretreatment
- C25D: PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR

## Abstract

The present invention provides a method for coating metal plates by applying an organic coating composition containing 5 to 70% by weight of molybdenum disulfide, to the metal plate, in a dry film thickness of from 0.5 to 20.mu., drying the applied composition, and subjecting the coated metal plate to forming processing, and electrodeposition coating.

## Claims

### Claim 1

A coating method for coating a metal plate, which comprises
providing an organic coating composition which contains from 5 to 70% by weight of molybdenum disulfide, said composition forming a coating film which has a varistor property,
applying the organic coating composition on a metal plate, without being surface treated or after surface preparation or chromate treatment, in a dry film thickness of from 0.5 to 20.mu.,
drying the applied composition to form a coating film which has a varistor property,
subjecting the resultant coated metal plate to forming processing, and then
conducting electrodeposition coating on the metal plate.

### Claim 2 (depends on 1)

A coating method as claimed in claim 1, wherein said metal plate is a non-treated or surface-treated cold rolled bright sheet steel.

### Claim 3 (depends on 1)

A coating method as claimed in claim 1, wherein said metal plate is a cold rolled bright sheet steel, the surface of which has been plated with an alloy.