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:
Jul. 16, 1985
Filed:
Oct. 18, 1983
Applicant:
Inventors:
Takashi Takeuchi, Utsunomiya, JP;
Shoji Kobayashi, Utsunomiya, JP;
Tsuyoshi Ohtani, Ichikaimachi, JP;
Tetusya Imamura, Utsunomiya, JP;
Assignee:
Kao Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428328 ; 428329 ; 428403 ; 428405 ; 428407 ; 428447 ; 428692 ; 428694 ; 428900 ;
Abstract
A magnetic recording medium excellent in magnetic properties and durability is provided which is characterized by containing magnetic powder coated with a reaction product between an aminosilane coupling agent and at least one compound selected from the group consisting of an acid anhydride of 6 to 22 carbon atoms and an alkylketene dimer. A magnetic paint containing said coated magnetic powder has good dispersibility of the magnetic powder and provides improved adhesion between the magnetic powder and a binder.