EP 3873851 A1 20210908 - COMPOSITIONS BASED ON YTTRIUM, CERIUM AND AN ORGANIC COMPOUND, AND STOP-OFF USE THEREOF
Title (en)
COMPOSITIONS BASED ON YTTRIUM, CERIUM AND AN ORGANIC COMPOUND, AND STOP-OFF USE THEREOF
Title (de)
ZUSAMMENSETZUNGEN AUF DER BASIS VON YTTRIUM, CER UND EINER ORGANISCHEN VERBINDUNG SOWIE DEREN VERWENDUNG
Title (fr)
COMPOSITIONS A BASE D'YTTRIUM, DE CÉRIUM ET DE COMPOSÉ ORGANIQUE, AINSI QUE LEUR UTILISATION ANTI-DIFFUSION
Publication
Application
Priority
- FR 1860143 A 20181102
- FR 1860144 A 20181102
- EP 2019079488 W 20191029
Abstract (en)
[origin: WO2020089207A1] The present invention relates to a composition based on yttrium oxide, a cerium-based compound and an organic compound and the use thereof in the field of welding as a stop-off product. The composition comprises, in an aqueous medium: particles of yttrium oxide; particles of a cerium-based compound: - which is cerium oxide; or - which is prepared by the method consisting in subjecting a colloidal dispersion D, which is obtained by neutralizing an aqueous solution of cerium nitrate with a basic aqueous solution, to heating; an organic compound chosen from the group formed by polyvinylpyrrolidone, polyvinyl alcohol, carboxymethyl cellulose and hydroxyethyl cellulose.
IPC 8 full level
C01F 17/00 (2020.01)
CPC (source: EP KR US)
B23K 20/023 (2013.01 - US); B23K 35/224 (2013.01 - KR US); C01F 17/235 (2020.01 - EP KR); C01F 17/30 (2020.01 - EP KR); C01P 2002/60 (2013.01 - EP KR); C01P 2002/77 (2013.01 - EP KR); C01P 2004/64 (2013.01 - EP KR)
Citation (search report)
See references of WO 2020089207A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2020089207 A1 20200507; CN 112969665 A 20210615; EP 3873851 A1 20210908; JP 2022506353 A 20220117; KR 20210084570 A 20210707; US 2021379704 A1 20211209
DOCDB simple family (application)
EP 2019079488 W 20191029; CN 201980072741 A 20191029; EP 19794565 A 20191029; JP 2021523676 A 20191029; KR 20217016115 A 20191029; US 201917288065 A 20191029