Magnetic recording medium
AssigneeTDK Corporation
InventorsKazuhiro Kuroda, Yasushi Ishikawa, Kazushi Tanaka
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Abstract
A magnetic layer of a magnetic recording medium comprising a magnetic powder dispersed in a binder resin contains a powder of Ti-containing Al.sub.2 O.sub.3. The magnetic recording medium may alterenatively incorporate the Ti-containing Al.sub.2 O.sub.3 powder in the back coating or in both the magnetic layer and the back coating. A superior running stability and a superior durability are attained.
Claims4
A magnetic recording medium including a support and a magnetic layer supported on one surface of the support, said magnetic layer comprising a magnetic powder dispersed in a binder resin, wherein said magnetic layer contains 0.5-1.5 wt % of a powder of Ti-containing Al.sub.2 O.sub.3 based on the weight of said magnetic powder, and wherein said Ti-containing Al.sub.2 O.sub.3 contains 2-10 wt % of Ti based on the weight of the Al.sub.2 O.sub.3.
A magnetic recording medium including a support, a magnetic layer supported on one surface of the support and a back layer supported on the other surface of the support, wherein said back layer contains 0.5-2.5 wt % of a powder of Ti-containing Al.sub.2 O.sub.3 dispersed in a binder resin based on the weight of said binder resin and wherein said Ti-containing Al.sub.2 O.sub.3 contains 2-10 wt % of Ti based on the weight of the Al.sub.2 O.sub.3.
Dependencies are inferred from the claim text.