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. 12, 1988
Filed:
Jun. 16, 1986
Applicant:
Inventor:
David J Kimball, Remus, MI (US);
Assignee:
Dow Corning Corporation, Midland, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F / ;
U.S. Cl.
CPC ...
427 48 ; 252 6254 ; 252 6255 ; 252 6256 ; 427128 ; 427130 ; 427132 ; 428694 ; 428900 ; 528 25 ; 556404 ;
Abstract
An improved dispersant composition for magnetic media, comprising the reaction product of a phosphate ester and a silicon compound, is described. The silicon compound may be selected from diphenysilanediol or a trialkoxysilane having alkyl, alkenyl, haloalkyl, acryloxypropyl, methacryloxypropyl, or phenyl functionality. A magnetic coating composition and a process for producing a magnetic recording medium having improved magnetic properties, which employ the above dispersant composition, are also disclosed.