Provided are: a graft polymer and a colored resin that are free from color migration or fading caused by bleed-out after coloring, which is a defect of a dye, without impairing vivid color development and transparency of the dye; a method for producing the same; and a resin composition containing the colored resin.
The present invention relates to: (1) a graft polymer that has a polyolefin (A) as the main chain, and a polymer (B) polymerized a dye (b) having a radical reactive functional group, in a side chain; (2) the graft polymer which is characterized in that the dye (b) having the radical reactive functional group is a cationic rhodamine derivative, a cationic triarylmethane-type dye derivative or a cationic cyanine-type dye derivative, having an ethylenically unsaturated group; (3) a colored resin consisting of the graft polymer; as well as (4) a method for producing the colored resin, which is characterized by mixing the polyolefin (A), the dye (b) having the radical reactive functional group, and the radical reaction initiator (C), and subjecting a radical reaction of the mixture; and the like.
本发明提供了:一种接枝聚合物和有色
树脂,它们在不损害
染料的鲜艳显色性和透明性的情况下,不会因着色后的渗色(
染料的缺陷)而导致颜色迁移或褪色;一种生产方法;以及一种含有该有色
树脂的
树脂组合物。
本发明涉及(1)一种接枝聚合物,其主链为聚烯烃(A),侧链为聚合了具有自由基活性官能团的
染料(b)的聚合物(B);(2)该接枝聚合物,其特征在于具有自由基活性官能团的
染料(b)是阳离子
罗丹明衍
生物、阳离子三芳基
甲烷型
染料衍
生物或阳离子
氰基型
染料衍
生物,具有
乙烯不饱和基团;(3) 由接枝聚合物组成的有色
树脂;以及 (4) 生产有色
树脂的方法,其特征在于将聚烯烃 (A)、具有自由基活性官能团的
染料 (b) 和自由基反应
引发剂 (C) 混合,并使混合物发生自由基反应;等等。