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:
Feb. 12, 2002
Filed:
Jul. 03, 2000
Hideharu Daifuku, Fujisawa, JP;
Kota Kawano, Yokohama, JP;
Bridgestone Corporation, Tokyo, JP;
Abstract
A resin composition for a resin magnet includes a resin binder containing a thermoplastic resin as a main component and a polymerized fatty acid based polyamide elastomer: and a magnetic powder mixed and dispersed in said resin binder. The resin composition further contains an ultra fine powder of an inorganic filler having a particle size of 1 &mgr;m or less. A process of producing pellets of a resin composition for a resin magnet, includes the steps of: mixing pellets of a binder resin with a magnetic powder on a batch processing basis; supplying the mixture to a kneading-extruder by means of a counting feeder; and extrusion-molding the mixture, to obtain pellets of a molding material for a resin magnet, in which the magnetic powder is mixed and dispersed in the binder resin.