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:
Dec. 11, 1990
Filed:
Aug. 05, 1988
Applicant:
Inventor:
Jan W Gooch, Atlanta, GA (US);
Assignee:
Hoechst Celanese Corporation, Somerville, NJ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
428329 ; 428332 ; 428694 ; 428900 ; 528241 ; 528270 ; 252 62 ; 252 54 ;
Abstract
Methods for forming magnetic coatings on a nonmagnetic substrate include the application of a liquid film layer onto the substrate, the film layer being a dispersion of magnetic particles in a liquid resin binder solution which contains trioxane. The trioxane may or may not be removed from the cured layer. Thus, the trioxane may be present as a reactive solvent for the resin binder, in which case, a polymerization initiator for the trioxane is also present in the liquid film layer. The trioxane may then be polymerized in situ on the substrate to yield poly(oxymethylene).