| 摘要 |
<p>Compsns. for prepg. magnetic paint comprise (i) copolymer 100 wt.%, av. d. p. 100-900, prepd. from (A) vinyl chloride, (B) carbonate vinyl ester, (C) vinyl alcohol (D) unsatd. dicarbonic acid and/or dicarbonic anhydride, (ii) thermosetting resin i.e. urethane resin, epoxy resin 5-50 wt.%, (iii) magnetic component i.e. ferromagnetic iron oxide 200-600 wt.% and (iv) org. solvent 600-1200 wt.%.</p> |
