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    • 8. 发明授权
    • Polymer dispersions as an additive in building materials
    • 聚合物分散体作为建筑材料中的添加剂
    • US06809148B1
    • 2004-10-26
    • US10383609
    • 2003-03-10
    • Markus KoppersJoachim PakuschHermann AndersMarco SchmidtHans-Jürgen Denu
    • Markus KoppersJoachim PakuschHermann AndersMarco SchmidtHans-Jürgen Denu
    • C08F22010
    • C04B24/2641C04B24/2647C04B24/2676C04B24/2688C04B28/02C04B2103/0057C04B2111/00586C04B2111/0075C08F212/04C08F236/10C08F290/062
    • Polymer dispersions comprise at least one copolymer which contains, as polymerized monomers, a) from 25 to 70% by weight of at least one conjugated aliphatic diene, b) from 25 to 70% by weight of at least one vinylaromatic monomer, c) from 2.5 to 15% by weight of at least one monoester of a C2-C10-alkanediol with acrylic acid or methacrylic acid or c′) from 0.1 to 10% by weight of at least one alkylpolyethylene glycol (meth)acrylate of the formula (I) where R1 is hydrogen or methyl, R2 is C1-C4-alkyl and n is an integer from 1 to 100, or c″) from 2 to 15% by weight of a mixture of the monoester c) and the alkylpolyethylene glycol (meth)acrylate c′), d) from 0 to 1.0% by weight of ethylenically unsaturated monomers which have at least one acid group, or salts thereof, e) from 0 to 5.0% by weight of ethylenically unsaturated nitriles and f) from 0 to 1.0% by weight of amides of &agr;,&bgr;-ethylenically unsaturated mono- and dicarboxylic acids. The polymer dispersions described are suitable, inter alia, as additives in building materials based on hydraulic binders.
    • 聚合物分散体包含至少一种共聚物,其包含作为聚合单体的a)25至70重量%的至少一种共轭脂族二烯,b)25至70重量%的至少一种乙烯基芳族单体,c) 2.5至15重量%的至少一种C2-C10-链烷二醇与丙烯酸或甲基丙烯酸orc'的单酯)0.1至10重量%的至少一种式(I)的烷基聚乙二醇(甲基)丙烯酸酯, 其中R 1是氢或甲基,R 2是C 1 -C 4 - 烷基,n是1至100的整数,orc“)2至15重量%的单酯c)和 烷基聚乙二醇(甲基)丙烯酸酯c'),d)0至1.0重量%的具有至少一个酸基的烯键式不饱和单体或其盐,e)0-5.0重量%的烯属不饱和腈和 )0至1.0重量%的α,β-烯键式不饱和单羧酸和二羧酸的酰胺。所述聚合物分散体是合适的,i 特别是作为基于水泥粘合剂的建筑材料中的添加剂。