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    • 1. 发明申请
    • GRAFT COPOLYMERS BASED ON MONO-, OLIGO- AND POLYSACCHARIDES, PROCESS FOR PREPARING THE SAME AND THEIR USE
    • 基于MONO接枝共聚物,低聚糖和多糖,其制造方法相同,它们的用途
    • WO1996037530A1
    • 1996-11-28
    • PCT/EP1996001922
    • 1996-05-08
    • DEGUSSA AKTIENGESELLSCHAFTBUCHHOLZ, StefanDORN, KlausHARDT, Reinhold
    • DEGUSSA AKTIENGESELLSCHAFT
    • C08F251/00
    • C11D3/3788C08F251/00
    • Water-soluble graft copolymers of monosaccharides, oligosaccharides, polysaccharides and their derivatives are obtained by radically initiated copolymerisation of (A) monomer mixtures of (a) more than 40-100 % by weight of at least one alpha - beta -unsaturated aldehyde having general formula (I), in which R stands for hydrogen or linear or branched C1-C4 alkyl, and R stands for hydrogen or methyl, (b) 0-60 % by weight of monoethylenically unsaturated monomers different from (a) but copolymerisable with (a), and (c) 0-5 % by weight of at least two ethylenically unsaturated monomers having no conjugated double bonds in their molecule, in the presence of (B) monosaccharides, oligosaccharides, polysaccharides, polysaccharides decomposed by oxidation, hydrolysis or enzymes, chemically modified mono-, oligo- or polysaccharides or mixtures of said compounds; and (C) one or several oxidants. The weight ratio between (A) and (B) extends from (95: 20) to (5: 80) and the weight ratio between (C) and (A) + (B) extends from (5: 100) to (50: 50). Used as builders or co-builders, these graft copolymers have good scale-inhibiting properties and are extremely biodegradable.
    • 中的至少一种α的一个)超过40-100重量%的单糖,寡糖,多糖和它们的衍生物,其是由A的自由基共聚获得)的单体混合物的水溶性接枝共聚物 - (I通式β-不饱和醛), 其中R <1>是氢或支链的C1-C4烷基,直链或,且R <2>是氢或甲基,b)0-60重量%的从一),其共聚的单烯属不饱和单体不同) 和c)0-5重量%,在该分子的单体的至少两个烯属不饱和的非共轭双键,在B)的单糖,寡糖,多糖,存在的%氧化,水解或酶促降解的多糖,化学改性的单糖,寡糖 或多糖或所述化合物的混合物,和C)一种或多种氧化剂,其中的重量比)到B) (95:20)〜(5:80)是足够的和C)中的C的重量比)到A)+ B)从(5:100),(50:50)中使用,具有,作为助洗剂或共助洗剂良好结壳抑制作用 和优异的可生物降解。