摘要 |
<p>This invention relates to coating compositions used for forming a magnetic layer on the surface of substrates to prepare magnetic recording media, e.g., recording tapes, of which the characteristic ingredient is a copolymeric resin. The copolymeric resin is a copolymer obtained by the copolymerization of comonomers in a specified proportion including (1) vinyl chloride, (2) vinyl acetate, and (3) an acrylate or methacrylate moiety having a sulfonic acid group or a metal or amine salt thereof. This copolymeric resin is advantageous in respect of imparting enhanced dispersion and magnetic property characteristics while also having desirable rheological characteristics and thermal stability.</p> |
申请人 |
UNION CARBIDE CHEMICALS & PLASTICS TECHNOLOGY CORP., DANBURY, CONN., US |
发明人 |
MALLON, CHARLES BERNARD, BELLE MEAD, NEW JERSEY 08502, US;HARVEY, JAMES RICHARD, BRIDGEWATER, NEW JERSEY 08807, US;NICOLINI, CLAUDIO FERNANDO, PRINCETON, NEW JERSEY 08540, US |