Magnetic recording medium comprising an undercoating made of a m

Details Magnetic recording medium comprising an undercoating made of a m Magnetic recording medium comprising an undercoating made of a m

1985-02-11

1987-06-09

Robinson, Ellis P.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Physical dimension specified

360135, 427131, 428482, 428694, 428900, 4284259, G11B 5702

Patent

active

046719954

ABSTRACT:
A magnetic recording medium which comprises a non-magnetic support, and a magnetic layer formed on the support through an undercoat layer is described. The undercoat layer is made of a cured product of a mixture of a thermosetting polyurethane resin and a thermosetting polyester used in an amount of not greater than 10 wt % of the polyurethane resin. The undercoat layer further comprises a phosphate ester.

REFERENCES:
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patent: 4528240 (1985-07-01), Miyoshi
patent: 4540618 (1985-09-01), Suzuki
patent: 4596747 (1986-06-01), Nishimatsu

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