<p>Magnetic recording media comprising a non-magnetic base and, applied thereto, one or more magnetizable layers based on an anisotropic magnetic material finely dispersed in an organic binder containing an ionomeric polyurethane elastomer, wherein the binder used is a substantially aqueous polyurethane dispersion prepared from a polyurethane solution which has been obtained by reacting a polyisocyanate with an organic polyhydroxy compound in the presence of an organic solvent that is inert to isocyanate groups.</p>
申请公布号
EP0033900(A3)
申请公布日期
1981.12.23
申请号
EP19810100590
申请日期
1981.01.28
申请人
BASF AKTIENGESELLSCHAFT
发明人
LEHNER, AUGUST;HARTMANN, HEINRICH, DR.;BACHMANN, RUDOLF, DR.;BALZ, WERNER, DR.;KOHL, ALBERT