公开(公告)号：EP2824125A2

公开(公告)日：2015-01-14

申请号：EP14186158.3

申请日：2012-05-25

申请人： LANXESS Deutschland GmbH

发明人： Song, Ma

IPC分类号： C08F251/00 ,  C08F289/00 ,  C14C3/22

CPC分类号： C14C3/22 ,  C08F251/00 ,  C08F251/02 ,  C08F289/00 ,  C08F291/12 ,  C14C3/08 ,  C08F220/06

摘要： Process for the manufacturing of graft polymers of polysaccharides or polypeptides or its respective derivatives, obtainable by free radical induced co-polymerization of
A) a monomer selected from or a monomer mixture of
(a) from 20 to 100% by weight of acrylic acid or methacrylic acid or of a mixture thereof or of the alkali metal, alkaline earth metal or ammonium salts thereof,
(b) from 0 to 80% by weight of other monoethylenically unsaturated monomers which are copolymerizable with the monomers (a) and
(c) from 0 to 5% by weight of monomers having at least 2 ethylenically unsaturated, nonconjugated double bonds in the molecule,

in the presence of either
B1) polysaccharides, oxidatively, hydrolytically or enzymatically degraded polysaccharides, oxidized hydrolytically degraded or oxidized enzymatically degraded polysaccharides, or such chemically modified degraded products, chemically modified mono-, oligo- or polysaccharides or mixtures of the stated compounds or
B2) polypeptides, hydrolytically or enzymatically degraded and optionally chemically modified polypeptides or mixtures of the stated compounds
in a weight ratio A:(B1 or B2) of from 1:99 to 18:82,
wherein the components of the monomers of A) are added to B1) or B2) in an inert solvent at a temperature of 40 to 150 °C in the presence of a free radical-forming initiator, characterized in that at least 50% of the radical-forming initiator are with the component B1) or B2) before the addition of the monomers A) and the rest is added together with the monomers of A).

摘要翻译： 用于制备多糖或多肽或其相应衍生物的接枝聚合物的方法，其可通过自由基诱导的共聚A）选自以下的单体或（a）20至100重量％的丙烯酸或 甲基丙烯酸或其混合物或其碱金属，碱土金属或铵盐，（b）0至80重量％的其它单烯属不饱和单体，其可与单体（a）和（c）共聚 在B1）多糖，氧化，水解或酶促降解的多糖的存在下，在分子中具有至少2个烯属不饱和的非共轭双键的0至5重量％的单体，氧化的水解降解或氧化的酶降解的多糖等 化学修饰的降解产物，化学修饰的单糖，寡糖或多糖或所述化合物或B2）多肽的混合物，h 以1:99至18:82的重量比A：（B1或B2）的水解或酶促降解和任选化学修饰的多肽或所述化合物的混合物，其中将A）单体的组分加入到B1） 或B2）在惰性溶剂中，在自由基形成引发剂的存在下，在40至150℃的温度下，其特征在于至少50％的自由基形成引发剂与组分B1）或B2）之前 加入单体A），其余的与A）的单体一起加入。

公开(公告)号：EP2824125A3

公开(公告)日：2015-03-04

申请号：EP14186158.3

申请日：2012-05-25

申请人： LANXESS Deutschland GmbH

发明人： Song, Ma

IPC分类号： C08F251/00 ,  C08F289/00 ,  C14C3/22

CPC分类号： C14C3/22 ,  C08F251/00 ,  C08F251/02 ,  C08F289/00 ,  C08F291/12 ,  C14C3/08 ,  C08F220/06

摘要： Process for the manufacturing of graft polymers of polysaccharides or polypeptides or its respective derivatives, obtainable by free radical induced co-polymerization of
A) a monomer selected from or a monomer mixture of
(a) from 20 to 100% by weight of acrylic acid or methacrylic acid or of a mixture thereof or of the alkali metal, alkaline earth metal or ammonium salts thereof,
(b) from 0 to 80% by weight of other monoethylenically unsaturated monomers which are copolymerizable with the monomers (a) and
(c) from 0 to 5% by weight of monomers having at least 2 ethylenically unsaturated, nonconjugated double bonds in the molecule,

in the presence of either
B1) polysaccharides, oxidatively, hydrolytically or enzymatically degraded polysaccharides, oxidized hydrolytically degraded or oxidized enzymatically degraded polysaccharides, or such chemically modified degraded products, chemically modified mono-, oligo- or polysaccharides or mixtures of the stated compounds or
B2) polypeptides, hydrolytically or enzymatically degraded and optionally chemically modified polypeptides or mixtures of the stated compounds
in a weight ratio A:(B1 or B2) of from 1:99 to 18:82,
wherein the components of the monomers of A) are added to B1) or B2) in an inert solvent at a temperature of 40 to 150 °C in the presence of a free radical-forming initiator, characterized in that at least 50% of the radical-forming initiator are with the component B1) or B2) before the addition of the monomers A) and the rest is added together with the monomers of A).