【発明の名称】磁気記録媒体

Title:

【発明の名称】磁気記録媒体

Document Type and Number:

Japanese Patent JP2847212

Kind Code:

B2

Abstract:

A magnetic recording medium having excellent running properties and excellent durability is disclosed, which comprises a non-magnetic support having thereon a magnetic layer comprising a ferromagnetic powder and carbon black, said carbon black being a mixture which contains high structure furnace carbon black and acetylene black in the weight ratio of the former to the latter of from 95:5 to 45:55, and said high structure furnace carbon black having properties satisfying the general equations (I) or (II) below: 0/=0.625X+75 (I) X>120, Y/=120, wherein W is the amount of DBP oil adsorbed (ml/100 grams) by said actylene black, Z is the specific surface area (m2/gram) of said acetylene black, and W>/=120.

Inventors:

RYOMO KATSUMI
TAKAHASHI MASATOSHI
HASHIMOTO AKIHIRO

Application Number:

JP26472387A

Publication Date:

January 13, 1999

Filing Date:

October 19, 1987

Export Citation:

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