| 摘要 |
<p>PURPOSE:To obtain the magnetic recording medium improved in overall performance by incorporating a vinyl chloride resin, phenoxy resin, etc., as a binder into a magnetic layer and incorporating one kind selected from polyalkylene oxide alkyl phosphate and others and lecithin as a lubricating agent therein. CONSTITUTION:The magnetic recording medium is constituted by providing the magnetic layer dispersed with the binder in fine ferromagnetic powder on a nonmagnetic base and is improved in stability with age, still durability, etc. Namely, the vinyl chloride resin, phenoxy resin, polycarbonate polyurethane resin, and polyisocyanate resin are incorporated as the binder into the magnetic layer and at least one kind selected from the polyalkylene oxide alkyl phosphate, the alkaline salt of the polyalkylene oxide alkyl phosphate and the lecithin is incorporated as the lubricating agent therein. The still durability is improved and the stability with age is improved by combining these components and as a result, the output is greatly improved.</p> |
