| 摘要 |
PURPOSE:To provide the titled microcapsule excellent in the preservability of a capsule core material and color formation by wrapping a hydrophobic core material containing a specified organic phosphor-based multivalent metal compound. CONSTITUTION:An organic phosphor compound with C14-300 per one molecule of the formulas I -III (X1-3 is O or S and R1-6 alkyl or aryl) and an organic phosphorous compound having S-OH bond of the formulas IV-VI (R is alkyl or aryl) reacts upon a multivalent metal compound (e.g. FeCl3) to obtain a hydrophobic core material comprising an organic phosphor-based multivalent metal compound having a P-O<->...M<n+> or P-S<->...M<n+>. Then, 3-100wt. parts of said core material is dissolved or dispersed into 100wt. parts of non-volatile hydrophobic medium (e.g. kerosine) and capsulized by coacervation, interfacial polymerization, in-stiu method or the like. |
