公开(公告)号：DE2364877A1

公开(公告)日：1975-07-03

申请号：DE2364877

申请日：1973-12-28

Applicant: BASF AG

Inventor： GROSS EGON VON DIPL CHEM DR ,  STRITZINGER HEINZ DIPL ING ,  HARTMANN JOB-WERNER DIPL CHEM ,  STEUERWALD MANFRED ,  KLEIN URSULA ,  SCHAEFER DIETER DIPL CHEM DR

IPC: C09D5/23 ,  G11B5/702 ,  G11B5/68

Abstract: Magnetic recording media comprising a non-magnetizable flexible base and a firmly adhering magnetic coating based on a dispersion, containing a silane, of a magnetic pigment in a polymeric binder, and a process for their manufacture. The silane is an aminoalkylsilane RnSi(OR')4-n, wherein n is 1, 2 or 3, R' is alkyl of 1 to 8 carbon atoms and R is aminoalkyl of the formula with one or more primary and/or secondary amino groups and from 3 to 11 carbon atoms. Magnetic recording media comprising a magnetic coating containing such a silane exhibit better abrasion resistance and better electromagnetic properties than comparable coatings.