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:
Jan. 11, 1994
Filed:
Feb. 02, 1993
Eitaro Nakamura, Tokyo, JP;
Katsuya Nakamura, Tokyo, JP;
Nippon Zeon Co., Ltd., Tokyo, JP;
Abstract
A magnetic recording medium which comprises a magnetic layer is prepared by a dispersion of a powder of a ferromagnetic material in a binding material which is a macromolecular compound comprising an epoxy group, followed by addition to the dispersion of a silane compound comprising an amino group or a thiol group. A low viscosity magnetic coating material in which a fine powder of magnetic material is dispersed with excellent stability can thus be prepared. The recording medium prepared by using the coating material exhibits excellent magnetic characteristics, excellent durability and excellent running properties under variety of environmental conditions with desirable stability.