Title:
METHOD FOR PRODUCING ALUMINUM-RESIN COMPOSITE, AND SURFACE TREATMENT AGENT
Document Type and Number:
WIPO Patent Application WO/2023/243190
Kind Code:
A1
Abstract:
The present invention addresses the problem of, inter alia, providing a production method capable of the continuous production of an aluminum-resin composite that exhibits a high bonding strength, and providing a surface treatment agent that can be used in this method. Said production method comprises: a first surface treatment step for bringing a surface of an aluminum member into contact with an alkaline surface treatment agent that contains an alkali source, an amphoteric metal ion, an oxidizing agent, and a thio compound; a second surface treatment step for bringing the aluminum member surface that has gone through the first surface treatment step into contact with an acidic surface treatment agent that contains halogen ion, aluminum ion, ammonium ion, and acid, and that contains the acid at 3.0 mass% to 4.9 mass% as the acid concentration and contains the aluminum ion at 0.2 mass% to 3.8 mass%; and a bonding step for bonding a resin composition to the aluminum member surface that has gone through the second surface treatment step.
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Inventors:
TAKAHASHI MASARU (JP)
Application Number:
PCT/JP2023/014055
Publication Date:
December 21, 2023
Filing Date:
April 05, 2023
Export Citation:
Assignee:
MEC CO LTD (JP)
International Classes:
C23F1/20; B32B15/08; C23F1/36
Domestic Patent References:
| WO2019189773A1 | 2019-10-03 | |||
| WO2017209011A1 | 2017-12-07 | |||
| WO2019066011A1 | 2019-04-04 |
Foreign References:
| JP2018095669A | 2018-06-21 | |||
| JP2006274437A | 2006-10-12 |
Attorney, Agent or Firm:
IZAWA Makiko (JP)
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