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    • 5. 发明申请
    • NOVEL ACID FUNCTIONAL POLYMER DISPERSANTS
    • 新型酸性官能聚合物分散剂
    • WO02072639A3
    • 2002-11-28
    • PCT/US0206139
    • 2002-02-22
    • KING INDUSTRIES INC
    • HE ZHIQIANG ALEX
    • C08F8/00C08G69/44C08G73/02C09B67/46C09D7/45C09D17/00C08K3/04C08G63/08C08G67/02C08G69/26
    • C09D17/00C08F8/00C08G69/44C08G73/02C09B67/0085C09D7/45C08F26/02
    • The present invention is related to novel acid functional pigment dispersing agents. In particular, the invention is directed to novel polymers with acid functional groups for use as pigment dispersants. The novel polymers comprise polymeric amides with free carboxyl functional groups having the structure (I) wherein PE is a polyester, PA is a polyamine and A is an anhydride. The novel pigment dispersants of the present invention are particularly effective for the dispersion of high color carbon black and organic pigments. The advantages of the novel pigment dispersants over known amine functional polymeric dispersants are several. They do not tend to discolor when exposed to UV light. They do not inhibit acid catalyzed reactions such as melamine crosslinking or react with iscyanate or catalyze the isocyanate/H2O reaction. They are non-toxic or much less toxic to aquatic organisms. The novel dispersants, therefore can be used in acid catalyzed and isocyanate processes without the adverse effects of the prior art amine functional dispersants. Furthermore, the novel dispersants are environmentally safer.
    • 本发明涉及新型酸性功能颜料分散剂。 具体而言,本发明涉及用作颜料分散剂的具有酸官能团的新型聚合物。 新颖的聚合物包括具有结构(I)的具有游离羧基官能团的聚合酰胺,其中PE是聚酯,PA是聚胺和A是酸酐。 本发明的新型颜料分散剂对高颜色炭黑和有机颜料的分散特别有效。 新型颜料分散剂优于已知的胺官能聚合物分散剂的优点有几种。 暴露在紫外线下时不会变色。 它们不会抑制酸催化的反应,例如三聚氰胺交联或与异氰酸酯反应或催化异氰酸酯/ H 2 O反应。 它们对水生生物无毒或毒性小得多。 因此该新型分散剂可以用于酸催化和异氰酸酯工艺中,而没有现有技术胺官能分散剂的不利影响。 此外,新型分散剂对环境更安全。