| 摘要 |
A pelletizable pigment concentrate comprising an essentially agglomerate free intimate dispersion of by weight (a) from 20 to 55% of pigment, (b) from 5 to 35% of a friable dispersing resin selected from the group consisting of low molecular weight hydrocarbon type resins and rosin esters and having a softening point range of about 70 DEG to about 195 DEG C., and (c) from 30 to 65% of a polyester base, at least 30% of which is a copolyester of ethylene glycol, at least one aliphatic or cycloaliphatic diol containing 4 to 10 carbon atoms and at least one difunctional dicarboxylic acid or its ester derivative, said copolyester having an IV between about 0.45 and about 0.75 and a melting point range of about 140 DEG to about 200 DEG C.
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