发明授权
US4846994A Use of graft polymers based on polyalkylene oxides as grayness inhibitors in the wash and aftertreatment of textile material containing synthetic fibers 失效
在含有合成纤维的纺织材料的洗涤和后处理中使用基于聚环氧烷作为灰色抑制剂的接枝聚合物

Use of graft polymers based on polyalkylene oxides as grayness
inhibitors in the wash and aftertreatment of textile material
containing synthetic fibers
摘要:
A detergent containing as grayness inhibitor in the wash and aftertreatment of textile material containing synthetic fibers graft polymers obtainable by grafting(a) polyalkylene oxides which have a number average molecular weight of from 300 to 100,000 and are based on ethylene oxide, propylene oxide and/or butylene oxide, with(b) at least one vinyl ester derived from a saturated monocarboxylic acid containing 3 to 6 carbon atoms, a methyl or ethyl ester of (meth)acrylic acid and optionally mixtures of at least one of the monomers mentioned and up to 95% by weight of vinyl acetate in a weight ratio (a):(b) of from 1:02 to 1:10.
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