| 摘要 |
<p>PURPOSE:To improve electric characteristics, wear resistance, etc., by using a magnetic coating solution which while having storage stability improved, contains a compound having an unsaturated bond and is capable of polymerization by an electron beam and a specific polymer. CONSTITUTION:A compound which contains an acryloyl group, an acrylamide group, an allyl group, a vinyl-ether group, a vinyl-thioether group, etc., and a compound having >=1 carbon-to-carbon unsaturated bond and capable of polymerization by an electron beam such as unsaturated polyester are prepared. A magnetic coating solution which contains them and a vinyl chloride-vinyl acetate acrylic acid copolymer containing a polar group, such as a -CO2 group, -CONH2 group and -OH group, by 0.01-10wt% of a polymer, a vinyl chloride-vinyl propionate-maleic acid copolymer, an ethylene-vinyl acetate-vinyl alcohol copolymer, a vinyl chloride-vinyl acetate-acrylamide copolymer, and a polymer such as fiber element resin and acetal resin is applied on a base and, after a smoothing treatment, irradiated with an electron beam, thus obtaining a magnetic recording medium.</p> |
