| 摘要 |
PCT No. PCT/JP90/01104 Sec. 371 Date Apr. 4, 1991 Sec. 102(e) Date Apr. 4, 1991 PCT Filed Aug. 30, 1990 PCT Pub. No. WO91/03810 PCT Pub. Date Mar. 21, 1991.A magnetic recording medium having a magnetic layer on at least one side of a base film which is a stretched film of styrene polymer having a high degree of syndiotactic configuration or a composition thereof or a laminate film containing the stretched film, wherein linear expansion coefficient is not more than 5x10-5/ DEG C. and static friction coefficient is not less than 0.3 and not more than 1.0 is disclosed. The magnetic recording medium has good sliding properties, smoothness, heat resistance and moisture resistance, is excellent in dimensional stability to temperature and moisture, and has good coersive force, thus can be highly densified.
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