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Insulating Coating Composition For An Electrical Steel Sheet, Electrical Steel Sheet And Method Thereof

Abstract: ABSTRACT “INSULATING COATING COMPOSITION FOR AN ELECTRICAL STEEL SHEET, ELECTRICAL STEEL SHEET AND METHOD THEREOF” The present invention relates to an insulating coating composition for an electrical steel sheet, electrical steel sheet and method thereof comprising a silane compound represented by Chemical Formula 1 and at least one chromic acid compound of chromic anhydride, chromate, and dichromate wherein, in Chemical Formula 1, R1 is hydrogen, a halogen element, a linear or branched alkyl group, a cycloalkyl group, an alkenyl group, an alkynyl group, an aryl group, a heteroaryl group, an alkoxy group, or an aminoalkyl group, L is a direct bond or a divalent linking group, m is an integer of 1 to 4, and n is 4-m. The present invention also relates to an electrical steel sheet and method of preparing the electrical steel sheet.

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Notices, Deadlines & Correspondence

Patent Information

Application #
Filing Date
26 July 2022
Publication Number
02/2024
Publication Type
INA
Invention Field
METALLURGY
Status
Email
Parent Application

Applicants

POSCO
(Goedong-dong) 6261, Donghaean-ro Nam-gu, Pohang-si Gyeongsangbuk-do Korea 37859

Inventors

1. KWON, Min Serk
(Goedong-dong) 6261, Donghaean-ro Nam-gu, Pohang-si Gyeongsangbuk-do Korea 37859
2. SHIM, Ho-Kyung
(Goedong-dong) 6261, Donghaean-ro Nam-gu, Pohang-si Gyeongsangbuk-do Korea 37859
3. KO, Hyunchul
(Goedong-dong) 6261, Donghaean-ro Nam-gu, Pohang-si Gyeongsangbuk-do Korea 37859
4. KIM, Byung-Chul
(Goedong-dong) 6261, Donghaean-ro Nam-gu, Pohang-si Gyeongsangbuk-do Korea 37859
5. Jung-Woo KIM
(Goedong-dong) 6261, Donghaean-ro Nam-gu, Pohang-si Gyeongsangbuk-do Korea 37859
6. Heon-Jo CHOI
(Goedong-dong) 6261, Donghaean-ro Nam-gu, Pohang-si Gyeongsangbuk-do Korea 37859
7. Taeyoung NO
(Goedong-dong) 6261, Donghaean-ro Nam-gu, Pohang-si Gyeongsangbuk-do Korea 37859

Specification

Documents

Application Documents

# Name Date
1 202218042613-TRANSLATIOIN OF PRIOIRTY DOCUMENTS ETC. [26-07-2022(online)].pdf 2022-07-26
2 202218042613-STATEMENT OF UNDERTAKING (FORM 3) [26-07-2022(online)].pdf 2022-07-26
3 202218042613-REQUEST FOR EXAMINATION (FORM-18) [26-07-2022(online)].pdf 2022-07-26
4 202218042613-PROOF OF RIGHT [26-07-2022(online)].pdf 2022-07-26
5 202218042613-POWER OF AUTHORITY [26-07-2022(online)].pdf 2022-07-26
6 202218042613-FORM 18 [26-07-2022(online)].pdf 2022-07-26
7 202218042613-FORM 1 [26-07-2022(online)].pdf 2022-07-26
8 202218042613-DRAWINGS [26-07-2022(online)].pdf 2022-07-26
9 202218042613-DECLARATION OF INVENTORSHIP (FORM 5) [26-07-2022(online)].pdf 2022-07-26
10 202218042613-COMPLETE SPECIFICATION [26-07-2022(online)].pdf 2022-07-26
11 202218042613-Certified Copy of Priority Document [01-08-2022(online)].pdf 2022-08-01
12 202218042613-Information under section 8(2) [26-12-2022(online)].pdf 2022-12-26
13 202218042613-FORM 3 [26-12-2022(online)].pdf 2022-12-26