Title:
SURFACE TREATMENT COMPOSITION FOR LIGHT METALLIC MATERIAL
Document Type and Number:
WIPO Patent Application WO/2019/157612
Kind Code:
A1
Abstract:
Provided is a surface treatment composition for metallic material comprising a rare earth element containing compound, a silane coupling agent, and a polyhydroxyl monocarboxylic acid. Also provided is an aqueous surface treatment solution for light metallic material.
Inventors:
WU WENZHANG (CN)
WANG XING (CN)
WU JUNJUN (CN)
CAO HUIMIN (CN)
WANG XING (CN)
WU JUNJUN (CN)
CAO HUIMIN (CN)
Application Number:
PCT/CN2018/076596
Publication Date:
August 22, 2019
Filing Date:
February 13, 2018
Export Citation:
Assignee:
HENKEL AG & CO KGAA (DE)
HENKEL CHINA CO LTD (CN)
HENKEL CHINA CO LTD (CN)
International Classes:
C23C22/56; C23C22/48; C23C22/57
Foreign References:
| CN105177558A | 2015-12-23 | |||
| CN102409325A | 2012-04-11 | |||
| CN105247102A | 2016-01-13 | |||
| CN101098983B | 2012-01-11 | |||
| CN105814236A | 2016-07-27 |
Attorney, Agent or Firm:
NTD PATENT AND TRADEMARK AGENCY LIMITED (CN)
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