Global Patent Index - EP 3693496 A1

EP 3693496 A1 20200812 - AQUEOUS COMPOSITION FOR COATING GRAIN-ORIENTED STEEL

Title (en)

AQUEOUS COMPOSITION FOR COATING GRAIN-ORIENTED STEEL

Title (de)

WÄSSRIGE ZUSAMMENSETZUNG ZUR BESCHICHTUNG VON KORNORIENTIERTEM STAHL

Title (fr)

COMPOSITION AQUEUSE DESTINÉE AU REVÊTEMENT D'ACIER À GRAINS ORIENTÉS

Publication

EP 3693496 A1 20200812 (DE)

Application

EP 19155700 A 20190206

Priority

EP 19155700 A 20190206

Abstract (en)

[origin: WO2020161094A1] The present invention relates to an aqueous composition for coating grain-oriented steel, comprising - aluminum cations, - manganese cations, - dihydrogen phosphate, hydrogen phosphate and/or phosphate anions, - colloidal silicon dioxide and - optionally iron cations, wherein the aluminum cations present in the composition, calculated as Al2O3, the manganese cations, calculated as MnO, the dihydrogen phosphate, hydrogen phosphate and/or phosphate anions, calculated as P2O5, colloidal silicon dioxide, calculated as SiO2, and optionally the iron cations, calculated as FeO, result in the molecular formula (Al2O3)2(MnO)1,8-2,4(FeO)0-0,2(P2O5)5-7(SiO2)≥30.

Abstract (de)

Die vorliegende Patentanmeldung betrifft eine wässrige Zusammensetzung zur Beschichtung von kornorientiertem Stahl umfassend- Aluminiumkationen,- Mangankationen,- Dihydrogenphosphat-, Hydrogenphosphat- und/oder Phosphatanionen,- kolloidales Siliziumdioxid und- optional Eisenkationen, wobeidie in der Zusammensetzung vorhandenen Aluminiumkationen, berechnet als Al<sub>2</sub>O<sub>3</sub>, Mangankationen, berechnet als MnO, Dihydrogenphosphat-, Hydrogenphosphat- und/oder Phosphatanionen, berechnet als P<sub>2</sub>O<sub>5</sub>, kolloidales Siliziumdioxid, berechnet als SiO<sub>2</sub>, und optional Eisenkationen, berechnet als FeO, die Summenformel (Al<sub>2</sub>O<sub>3</sub>)<sub>2</sub>(MnO)<sub>1,8-2,4</sub>(FeO)<sub>0-0,2</sub>(P<sub>2</sub>O<sub>5</sub>)<sub>5-7</sub>(SiO<sub>2</sub>)<sub>≥30</sub>ergeben.

IPC 8 full level

C23C 22/18 (2006.01); C23C 22/20 (2006.01); C23C 22/74 (2006.01); H01F 1/147 (2006.01)

CPC (source: EP KR US)

C23C 22/18 (2013.01 - US); C23C 22/20 (2013.01 - EP KR US); C23C 22/74 (2013.01 - EP KR); H01F 1/14783 (2013.01 - US); H01F 1/18 (2013.01 - EP KR); H01F 1/14783 (2013.01 - EP KR)

Citation (applicant)

Citation (search report)

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)

EP 3693496 A1 20200812; BR 112021014908 A2 20210928; CN 113412343 A 20210917; CN 113412343 B 20230328; EP 3921454 A1 20211215; JP 2022519691 A 20220324; KR 20210124278 A 20211014; US 2022112605 A1 20220414; WO 2020161094 A1 20200813

DOCDB simple family (application)

EP 19155700 A 20190206; BR 112021014908 A 20200204; CN 202080013226 A 20200204; EP 2020052666 W 20200204; EP 20702148 A 20200204; JP 2021545995 A 20200204; KR 20217026578 A 20200204; US 202017428720 A 20200204