公开(公告)号：US3922439A

公开(公告)日：1975-11-25

申请号：US30667472

申请日：1972-11-15

Applicant: BASF AG

Inventor： HARTMANN HANS-JOERG ,  HARTMANN JOB-WERNER ,  FRISCHMAN HARALD ,  VAETH GUENTER

IPC: C09D5/23 ,  G11B5/702 ,  H01F10/02

CPC classification number: G11B5/7022 ,  Y10S428/90 ,  Y10T428/31565 ,  Y10T428/31576 ,  Y10T428/31609

Abstract: Magnetic recording media comprising a non-magnetic support and a magnetic layer based on a dispersion of finely divided magnetic pigment in a binder consisting of a mixture of a special soluble hydroxyl-free polyester urethane.

Abstract translation: 磁性记录介质包括非磁性载体和磁性层，该磁性层基于由特殊的可溶解的无羟基聚酯聚氨酯的混合物组成的粘合剂中的细分散的磁性颜料的分散体。