Magnetic recording medium containing magnetic powder and a polyu

Details Magnetic recording medium containing magnetic powder and a polyu Magnetic recording medium containing magnetic powder and a polyu

1997-10-23

1999-03-02

Resan, Stevan A.

Stock material or miscellaneous articles

Structurally defined web or sheet

Continuous and nonuniform or irregular surface on layer or...

428328, 428329, 428336, 4284259, 428694BU, 428694BA, 428694BR, 428900, G11B 5702

Patent

active

058768335

ABSTRACT:
A magnetic recording medium is disclosed, comprising a magnetic layer mainly comprising a ferromagnetic powder and a binder resin formed on at least one side of a non-magnetic support, wherein said magnetic layer has a thickness of from 0.05 .mu.m to 0.8 .mu.m, said ferromagnetic powder has an average long axis length of from 0.05 .mu.m to 0.20 .mu.m, and said binder resin comprises a polyurethane having a radius of gyration from 5 to 25 nm in cyclohexanone.

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Encyclopedia of Polymer Science and Engineering, John Wiley & Sons, 1987, pp. 786-792.

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