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:
Apr. 16, 2002
Filed:
Nov. 23, 1998
Francis G. Hanejko, Marlton, NJ (US);
George Ellis, Medford, NJ (US);
Hoeganaes Corporation, Cinnaminson, NJ (US);
Abstract
Annealable insulated metal-based powder particles and methods of preparing and using the same are provided. The insulated metal-based powder particles are formed from metal-based core particles that are coated with an annealable insulating material. The annealable insulating material has at least one inorganic compound and at least one organic polymeric resin. The inorganic compound in the insulating material forms a nonporous insulating layer surrounding the metal-based core particles upon heating. The organic polymeric resin preferably aids in dispersing or binding the inorganic compound to the metal-based core particles prior to annealing. The insulated metal-based powder particles produced can be formed into core components that can be annealed to improve the magnetic performance of the core component. The core components produced are particularly useful under AC operating conditions of 500 Hz or lower.