EP 3793824 A1 20210324 - ELECTRICAL STEEL STRIP OR SHEET, METHOD FOR PRODUCING SUCH AN ELECTRICAL STEEL STRIP OR SHEET, AND LAMINATION STACK MADE THEREFROM
Title (en)
ELECTRICAL STEEL STRIP OR SHEET, METHOD FOR PRODUCING SUCH AN ELECTRICAL STEEL STRIP OR SHEET, AND LAMINATION STACK MADE THEREFROM
Title (de)
ELEKTROBAND ODER -BLECH, VERFAHREN ZUR HERSTELLUNG SOLCH EINES ELEKTROBANDS ODER -BLECHS SOWIE BLECHPAKET DARAUS
Title (fr)
BANDE OU TÔLE MAGNÉTIQUE, PROCÉDÉ DE FABRICATION D'UNE TELLE BANDE OU TÔLE MAGNÉTIQUE ET NOYAU FEUILLETÉ À PARTIR DE CELLE-CI
Publication
Application
Priority
- EP 18173378 A 20180518
- EP 2019063010 W 20190520
Abstract (en)
[origin: WO2019219983A1] An electrical steel strip or sheet having at least one thermally curable water-based hot-melt adhesive coating provided on one of the flat sides of the electrical steel strip or sheet, a method for producing such an electrical steel strip or sheet, and a lamination stack made therefrom are disclosed. In order to be able to have increased melt viscosity in the baking process, it is proposed that the thermally curable water-based hot-melt adhesive coating additionally has a pre-crosslinker that bonds to the epoxy resin or a mixture of epoxy resins, the pre-crosslinker being an organic amine having three amino groups, namely an organic triamine, or a mixture of such organic amines.
IPC 8 full level
B32B 7/12 (2006.01); B32B 15/08 (2006.01); B32B 15/092 (2006.01); B32B 15/18 (2006.01); B32B 27/26 (2006.01); B32B 27/38 (2006.01); B32B 37/06 (2006.01); B32B 37/12 (2006.01); B32B 37/18 (2006.01); H01F 1/18 (2006.01); H01F 3/02 (2006.01); H01F 41/02 (2006.01); H02K 1/04 (2006.01); H02K 15/12 (2006.01)
CPC (source: EP KR US)
B32B 7/12 (2013.01 - EP KR US); B32B 15/011 (2013.01 - US); B32B 15/08 (2013.01 - EP KR); B32B 15/092 (2013.01 - EP); B32B 15/18 (2013.01 - EP); B32B 27/26 (2013.01 - EP); B32B 27/38 (2013.01 - EP); B32B 37/1207 (2013.01 - US); C08G 59/4021 (2013.01 - KR); C08G 59/504 (2013.01 - KR); C09J 7/28 (2017.12 - KR US); C09J 7/30 (2017.12 - KR); C09J 7/35 (2017.12 - US); C09J 163/00 (2013.01 - KR US); H01F 1/18 (2013.01 - EP US); H01F 3/02 (2013.01 - EP); H01F 41/0233 (2013.01 - EP); H02K 1/04 (2013.01 - EP); H02K 15/12 (2013.01 - EP); B32B 37/12 (2013.01 - EP); B32B 37/1284 (2013.01 - EP); B32B 37/18 (2013.01 - EP); B32B 2037/1215 (2013.01 - US); B32B 2038/0076 (2013.01 - EP); B32B 2250/03 (2013.01 - EP); B32B 2250/04 (2013.01 - EP); B32B 2250/05 (2013.01 - EP); B32B 2250/40 (2013.01 - EP); B32B 2250/42 (2013.01 - EP); B32B 2255/06 (2013.01 - EP); B32B 2255/26 (2013.01 - EP); B32B 2307/20 (2013.01 - EP); B32B 2307/208 (2013.01 - EP); B32B 2307/54 (2013.01 - EP); B32B 2307/542 (2013.01 - EP); B32B 2457/00 (2013.01 - EP); C09J 2301/304 (2020.08 - KR US); C09J 2463/00 (2013.01 - US)
Citation (search report)
See references of WO 2019219983A1
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 3569405 A1 20191120; CN 112368144 A 20210212; CN 112368144 B 20231114; EP 3793824 A1 20210324; JP 2021524392 A 20210913; JP 7364598 B2 20231018; KR 20210010914 A 20210128; US 2021309894 A1 20211007; WO 2019219983 A1 20191121
DOCDB simple family (application)
EP 18173378 A 20180518; CN 201980032720 A 20190520; EP 19730262 A 20190520; EP 2019063010 W 20190520; JP 2020564632 A 20190520; KR 20207036235 A 20190520; US 201917056709 A 20190520