ALKALINE CONVERSION TREATMENT COMPOSITION FOR MAGNESIUM AND MAGNESIUM ALLOY, AND METHOD FOR PERFORMING SURFACE TREATMENT ON MAGNESIUM AND MAGNESIUM ALLOY MATERIAL BY USING SAME

WIPO Patent Application WO/2017/138714

A1

An alkaline conversion treatment composition for forming a conversion coating on the surface of magnesium and a magnesium alloy material can have a composition comprising 2-10 wt% of a phosphoric acid compound, 1-5 wt% of an inorganic metal sol, 0.03-0.3 wt% of a vanadium compound, 0.5-5 wt% of a basic compound, 0.01-0.1 wt% of an acrylic resin and the balance being a water-soluble solvent. The composition forms a uniform and dense conversion coating on the surface of magnesium and a magnesium alloy material while simultaneously providing corrosion resistance, top coat adhesion, and waterproof adhesion, and does not cause surface defects on the top coat.

JP3490457	[Title of the Invention] A lead-containing copper alloy piping member having a low lead release property and a method for manufacturing the same.
JP2016074985	METAL COATING PRETREATMENT ON ZINC SURFACE
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KIM EUN-KYEONG (KR)
PARK CHANG-HYUN (KR)
PARK YOUNG-SAM (KR)
KIM DONG-YUN (KR)
CHOI MYUNG-HEE (KR)

PCT/KR2017/001129

August 17, 2017

February 02, 2017

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NOROO COIL COATINGS CO LTD (KR)

C23C22/60; C23C22/78; C23F1/00; C23G1/00

KR20090104575A	2009-10-06
KR20110010791A	2011-02-07
KR20140106938A	2014-09-04
KR20100079864A	2010-07-08
KR20010024643A	2001-03-26
KR100869402B1	2008-11-21
JPH09228062A	1997-09-02
JPH07126858A	1995-05-16
KR101559285B1	2015-10-08

See also references of EP 3415659A4

PARK, Young-woo (KR)

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