Resin used for magnetic recording media and a method for the...

Details Resin used for magnetic recording media and a method for the... Resin used for magnetic recording media and a method for the...

G - Physics

11

B

402/406

G11B 5/702 (2006.01)

Patent

CA 1281491

ABSTRACT A resin used for magnetic recording media, comprising a vinyl chloride copolymer containing vinyl monomers with hydroxyl groups and vinyl monomers with quaternary ammonium salt groups as component units. The resin is made by a method which comprises polymerizing an organic solvent solution containing vinyl chloride, vinyl monomers with hydroxyl groups and vinyl monomers with quaternary ammonium salt groups in a reacting apparatus to thereby precipitate a vinyl chloride copolymer, the interior surface of said reacting apparatus, which comes into contact with said organic solvent solution being coated with a fluororesin.

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