发明授权
- 专利标题： Graft polymers of natural substances containing saccharide structures or derivatives thereof and ethylenically unsaturated compounds and their use
- 专利标题（中）： 含有糖结构或其衍生物和烯属不饱和化合物的天然物质的接枝聚合物及其用途
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申请号： US914926申请日： 1992-07-17
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公开(公告)号： US5334287A公开(公告)日： 1994-08-02
- 发明人: Heinrich Hartmann , Walter Denzinger , Michael Kroener , Claudia Nilz , Friedrich Linhart , Andreas Stange
- 申请人： Heinrich Hartmann , Walter Denzinger , Michael Kroener , Claudia Nilz , Friedrich Linhart , Andreas Stange
- 申请人地址： DEX Ludwigshafen
- 专利权人： BASF Aktiengesellschaft
- 当前专利权人： BASF Aktiengesellschaft
- 当前专利权人地址： DEX Ludwigshafen
- 优先权： DEX4127733 19910822
- 主分类号： C08F251/02
- IPC分类号： C08F251/02 ; C08F251/00 ; D21H17/34 ; D21H17/35 ; D21H17/37 ; D21H21/18 ; D21H21/06 ; D21H21/10
摘要：
Graft polymers are obtainable by free radical polymerization of(A) monomers or monomer mixtures of(a) from 10 to 100% by weight of open-chain N-vinylcarboxamides(b) from 0 to 90% by weight of other, carboxyl-free monoethylenically unsaturated monomers which are copolymerizable with the monomers (a) and(c) from 0 to 5% by weight of monomers containing two or more ethylenically unsaturated, non-conjugated double bonds in the molecule, in the presence of(B) natural substances containing saccharide structures, such as mono-, oligo- and polysaccharides,in a weight ratio (A):(B) of from 95:5 to 20:80 and, if required, subsequent hydrolysis of the amido groups of the polymerized monomers (a) of the graft polymer with formation of amino groups, and said polymers are used as dry and wet strength agents for paper, board and cardboard.
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