The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 09, 2025
Filed:
Dec. 17, 2021
Applicant:
Vacuumschmelze Gmbh & Co. KG, Hanau, DE;
Inventors:
Assignee:
Vacuumschmelze GmbH & Co. KG, Hanau, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F 1/18 (2006.01); C08K 3/22 (2006.01); C09D 5/03 (2006.01); C09D 7/40 (2018.01); C09D 7/48 (2018.01); C09D 7/62 (2018.01); C09D 133/08 (2006.01); C09D 133/10 (2006.01); C21D 8/02 (2006.01); C22C 38/00 (2006.01); C22C 38/02 (2006.01); C22C 38/06 (2006.01); C22C 38/42 (2006.01); C22C 38/44 (2006.01); C22C 38/46 (2006.01); C22C 38/48 (2006.01); C22C 38/50 (2006.01); C22C 38/52 (2006.01); C22C 38/58 (2006.01);
U.S. Cl.
CPC ...
H01F 1/18 (2013.01); C08K 3/22 (2013.01); C09D 5/037 (2013.01); C09D 7/48 (2018.01); C09D 7/62 (2018.01); C09D 7/67 (2018.01); C09D 7/68 (2018.01); C09D 133/08 (2013.01); C09D 133/10 (2013.01); C21D 8/0284 (2013.01); C22C 38/002 (2013.01); C22C 38/02 (2013.01); C22C 38/06 (2013.01); C22C 38/42 (2013.01); C22C 38/44 (2013.01); C22C 38/46 (2013.01); C22C 38/48 (2013.01); C22C 38/50 (2013.01); C22C 38/52 (2013.01); C22C 38/58 (2013.01); C08K 2003/2227 (2013.01); C08K 2201/005 (2013.01); C08K 2201/011 (2013.01); C21D 2241/00 (2013.01);
Abstract
There is provided a water-based alkaline composition for forming an insulating layer of an annealing separator on a soft magnetic alloy, this composition comprising ceramic particles with a particle size of less than 0.5 μm and at least one polymer dispersion as a binding agent, the polymer dispersion comprising one or more mixed polymerisates from the group made up of acrylate polymers, methacrylate polymers, polyvinyl acetate, polystyrene, polyurethane, polyvinyl alcohol, hydroxylated cellulose ether, polyvinyl pyrrolidone, and polyvinyl butyral, and having a pH value of between 8 and 12, preferably between 9 and 11.