Magnetic recording medium having radiation curable binder with .alpha.-methylstyrene unsaturation

U.S. Patent Number: 5380905

Abstract: The present invention provides magnetic recording media comprising a magnetizable layer and optionally a backside coating provided on a nonmagnetizable substrate. At least one of the magnetizable layer and the optional backside coating comprises a polymeric binder, wherein the polymeric binder is obtained from reactants comprising a free radical generator and a radiation curable polymer. The radiation curable polymer comprises a plurality of radiation curable, .alpha.-methylstyrene moieties of the formula ##STR1##

Inventors: Haidos; John C. (St. Paul, MN), Arudi; Ravindra L. (Woodbury, MN), Rotto; Nelson T. (North St. Paul, MN)

Assignee: Minnesota Mining and Manufacturing Company (St. Paul, MN)

Application Number: 07/775,145

Issued: 1995-01-10

Expired: 2007-01-10

Classes: 558/172 ; 562/15

Field of search: 558/172 562/15

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