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    • 1. 发明授权
    • In situ solvent free method for making anhydride based graft copolymers
    • 用于制备基于酸酐的接枝共聚物的原位无溶剂方法
    • US06211299B1
    • 2001-04-03
    • US09368512
    • 1999-08-05
    • Thomas H. Moss, IIIKlein A. Rodrigues
    • Thomas H. Moss, IIIKlein A. Rodrigues
    • C08F26704
    • C11D3/3788C08F257/02C08F267/02C08F267/04C08F291/00C08L71/02C08L2666/04C08L2666/24
    • In situ solvent free methods for making anhydride based graft copolymers which involve mixing an ethylenically unsaturated monomer, an anhydride monomer, either a monofunctional polyglycol having a hydroxyl or amine terminal group or a polyfunctional polyglycol having a weight average molecular weight of greater than 5,000 and at least one terminal hydroxyl group, and a free radical initiator to form a mixture. The mixture is heated to form a copolymer having repeat units derived from the ethylenically unsaturated monomer and anhydride monomer, and a copolymer grafted polyglycol comprising a main polyglycol backbone having copolymer side chains which are heated to form an anhydride based graft copolymer. The anhydride based graft copolymers are especially useful as soil release agents in detergent formulations.
    • 用于制备基于酸酐的接枝共聚物的原位无溶剂方法,其包括将烯键式不饱和单体,酸酐单体,具有羟基或胺末端基团的单官能聚乙二醇或重均分子量大于5,000的多官能聚二醇混合, 至少一个末端羟基和自由基引发剂形成混合物。 将混合物加热以形成具有衍生自烯键式不饱和单体和酸酐单体的重复单元的共聚物,以及包含主要聚乙二醇主链的共聚物接枝聚乙二醇,其具有加热形成基于酸酐的接枝共聚物的共聚物侧链。 基于酸酐的接枝共聚物特别用作洗涤剂配方中的去污剂。