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:
Oct. 31, 2000
Filed:
May. 30, 1997
Applicant:
Inventors:
Joseph K Bailey, Eagan, MN (US);
John S Roden, White Bear Lake, MN (US);
Assignee:
Imation Corp., Oakdale, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
428323 ; 428328 ; 428403 ; 4284259 ; 428500 ; 4286 / ; 4286 / ; 4286 / ; 428900 ;
Abstract
Surface treatment agents incorporating both acidic functionality and electron withdrawing functionality are extremely effective for promoting compatibility of magnetic pigments with binder systems incorporating quaternary ammonium functionality. Such surface treatment agents are particularly effective in combination with binder systems incorporating quaternary ammonium functional, nonhalogenated vinyl copolymers such as are described in U.S. Pat. No. 5,510,187.