Title:
複層皮膜形成方法及び塗装物品
Document Type and Number:
Japanese Patent JP5721307
Kind Code:
B2
Abstract:
An object of the present invention is to provide a coated article having excellent finish and corrosion resistance unaffected by a chemical conversion coating solution even if water washing after a pretreatment step is omitted and a pretreatment solution is carried as a contaminant into an electrodeposition coating composition. The present invention provides a method for forming a multilayer coating film comprising a chemical conversion coating film (F1) and an electrodeposition coating film (F2); the method comprising the following steps. Step 1: immersing a metal substrate in a coating film forming agent (1) as a chemical conversion coating solution to form a chemical conversion coating film (F1); and Step 2: without water washing, subjecting the metal substrate to electrodeposition coating using a coating film forming agent (2) as a cationic electrodeposition coating composition (I) to form an electrodeposition coating film (F2).
Inventors:
Kentaro Kubota
Application Number:
JP2008265309A
Publication Date:
May 20, 2015
Filing Date:
October 14, 2008
Export Citation:
Assignee:
KANSAI PAINT CO.,LTD.
International Classes:
C25D13/20; B05D1/36; C09D5/00; C09D5/02; C09D5/08; C09D5/44; C09D7/12; C09D163/00; C09D201/00; C23C28/00; C25D13/06
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Attorney, Agent or Firm:
Patent Business Corporation Saegusa International Patent Office