Thick film composition yielding magnetic properties
AssigneeE. I. Du Pont de Nemours and Company
InventorJohn Graeme Pepin
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Abstract
The invention is directed to a magnetic thick film composition comprising particles of permanent magnetic materials dispersed in organic medium wherein the medium comprises a polymer selected from polyurethane, phenoxy and mixtures thereof, and organic solvent.
Claims10
A method of forming an isotopic thick film comprising the steps of:
- providing a magnetic thick film composition comprising particles of permanent magnetic materials comprising Nd—Fe—B system materials, dispersed in organic medium wherein the medium consists of a polymer selected from the group consisting of polyurethane, phenoxy and mixtures thereof, and organic solvent;
- providing a substrate;
- applying said magnetic thick film composition on said substrate;
- processing said magnetic thick film composition on said substrate to substantially volatilize said organic solvent, thus forming a thick film having a shape end thickness;
- and
- applying a magnetic field such that the direction of said magnetic field can be done in any direction versus the shape and thickness of said thick film.
A magnetically isotropic thick film formed from a magnetic thick film composition comprising particles of permanent magnetic materials comprising Nd—Fe—B system materials, dispersed in organic medium wherein the medium consists of a polymer selected from the group consisting of polyurethane, phenoxy and mixtures thereof, and organic solvent.
Dependencies are inferred from the claim text.