| 摘要 |
PURPOSE:To produce the titled composition containing a colorant in a uniformly dispersed state, and having improved properties such as resistance to bleeding- out of the colorant, by compounding a colorant-containing thermoplastic polymer as a separated phase. CONSTITUTION:A thermoplastic polymer (e.g. styrene polymer) filled with a colorant (e.g. organic dye, organic pigment, etc.) is dispersed uniformly in a matrix composed of a thermoplastic polymer (e.g. a solvent-soluble polyester preferably having a crystallinity of <5%, a softening point of 40-150 deg.C and a number-average molecular weight of 500-30,000) under melting and kneading. The average diameter of the separated phase is <=10mu, preferably <=5mu, and the electrical attractive force between the polymer of the separated phase and the colorant is made to be larger than the attractive force between the polymer in the matrix phase and the colorant. |
