【発明の名称】塗装用下地処理剤

Title:

【発明の名称】塗装用下地処理剤

Document Type and Number:

Japanese Patent JP2781844

Kind Code:

B2

Abstract:

Disclosed is a surface treating agent which improves the adhesive properties between a metal surface and a paint layer thereon. The surface treating agent is an acidic aqueous solution comprising zinc ion, nickel ion and phosphate ion, characterized by adding a cyclic metaphosphate thereto in the form of (MPO3)n wherein M represents a metal atom and n is an integer of at least 4 in a concentration of 20 to 600 mg/l.

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Inventors:

Endo Koetsu
Tokuyama Akio

Application Number:

JP26658088A

Publication Date:

July 30, 1998

Filing Date:

October 20, 1988

Export Citation:

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Assignee:

NIPPON PAINT CO.,LTD.

International Classes:

C23C22/12; C23C22/13; C23C22/23; C23C22/36; (IPC1-7): C23C22/23; C23C22/12

Domestic Patent References:

JP63130781A
JP4617047B1

Attorney, Agent or Firm:

Aoyama Ryo (2 outside people)

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