EP 0742849 A1 19961120 - SURFACE TREATMENT AGENT FOR ZINCIFEROUS-PLATED STEEL
Title (en)
SURFACE TREATMENT AGENT FOR ZINCIFEROUS-PLATED STEEL
Title (de)
OBERFLÄCHENBEHANDLUNGSMITTEL FÜR EISEN-ZINK-OBERFLÄCHEN
Title (fr)
AGENT DE TRAITEMENT DE SURFACE POUR ACIER ZINGUE
Publication
Application
Priority
- JP 1169594 A 19940203
- US 9500977 W 19950201
Abstract (en)
[origin: WO9521277A1] A chromium-free aqueous liquid surface treatment agent that can impart both a good corrosion resistance and a good paint adherence to zinciferous-plated steel sheet contains as its essential components polyhydroxyaryl carboxylic acid and/or depside thereof and silane coupling agent with the formula (YR)mRnSiX(4-m-n), in which R denotes alkyl groups; X is the methoxy or ethoxy group; Y is the vinyl, amino, mercapto, glycidoxy, or methacryloxy group; m = 1 to 3; and n = 0 to (3-m). The total content of said essential components is preferably 1 to 50 weight %.
IPC 1-7
IPC 8 full level
B05D 3/10 (2006.01); B05D 7/14 (2006.01); B05D 7/16 (2006.01); C09D 5/00 (2006.01); C09D 5/08 (2006.01); C23C 22/34 (2006.01); C23C 22/53 (2006.01); C23C 22/68 (2006.01)
CPC (source: EP)
B05D 7/16 (2013.01); C23C 22/34 (2013.01); C23C 22/53 (2013.01); C23C 22/68 (2013.01); C23C 2222/20 (2013.01)
Designated contracting state (EPC)
BE DE ES FR GB IT
DOCDB simple family (publication)
WO 9521277 A1 19950810; BR 9506685 A 19971118; CA 2182395 A1 19950810; EP 0742849 A1 19961120; EP 0742849 A4 19970226; JP H07216268 A 19950815; MX 9603096 A 19970531
DOCDB simple family (application)
US 9500977 W 19950201; BR 9506685 A 19950201; CA 2182395 A 19950201; EP 95909324 A 19950201; JP 1169594 A 19940203; MX 9603096 A 19950201