| 摘要 |
<p>A binder for a magnetic recording medium comprising (a) from 59 to 98% by weight of vinyl chloride, (b) from 1 to 30% by weight of or vinyl monomers with hydroxy groups or vinyl monomers with epoxy groups, and (c) from 1 to 40% by weight of N-substituted maleimide, and a binder for a magnetic recording medium comprising (a) from 59 to 97% by weight of vinyl chloride, (b) from 1 to 30% by weight of vinyl monomers with hydroxy groups or vinyl monomers with epoxy groups, (c) from 1 to 40% by weight of N-substituted maleimide, and (d) from 0.05 to 5% by weight of at least one kind of polymerizable monomer having a carboxyl group, a sulfonic acid group, a sulfonate group, a phosphoric acid group, a quaternary ammonium salt group or an amino group. </p> |
