Global Patent Index - EP 3873851 A1

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

EP 3873851 A1 20210908 (FR)

Application

EP 19794565 A 20191029

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