首页> 外国专利> METHOD OF OBTAINING POWDERED POLYMERS, POWDERED POLYMER OBTAINED THEREBY AS WELL AS MINERAL BUILDING MATERIALS AND METHOD OF PRODUCING AQUEOUS DISPERSION OF A POLYMER

METHOD OF OBTAINING POWDERED POLYMERS, POWDERED POLYMER OBTAINED THEREBY AS WELL AS MINERAL BUILDING MATERIALS AND METHOD OF PRODUCING AQUEOUS DISPERSION OF A POLYMER

机译:获得粉末状聚合物的方法,由此获得的粉末状聚合物以及矿物建筑材料以及生产聚合物水分散体的方法

摘要

The use of copolymers (I) or their salts as drying aids for aqueous dispersions of polymers (II) is claimed. (I) comprise (A) 20-95 mole % 3-6C ethylenically unsaturated carboxylic acid(s), (B) 5-80 mole % hydroxyalkyl ester(s) of 3-6C ethylenically unsaturated carboxylic acid(s) and (C) 10 mole % other monomers. Also claimed are (i) a method of producing polymer powder by drying aqueous (II) dispersions in the presence of (I); (ii) the polymer powder obtained in this way; (iii) dry mineral building material formulations containing this powder; and (iv) aqueous polymer dispersions obtained by free radical aqueous emulsion polymerisation in the presence of (I).
机译:要求使用共聚物(I)或其盐作为聚合物(II)的水分散体的干燥助剂。 (I)包含(A)20-95摩尔%的3-6C烯键式不饱和羧酸,(B)5-80摩尔%的3-6C烯键式不饱和羧酸的羟烷基酯和(C) )10摩尔%的其他单体。还要求保护(i)通过在(I)存在下干燥(II)水性分散体来生产聚合物粉末的方法; (ii)以这种方式获得的聚合物粉末; (iii)含有这种粉末的干燥矿物建筑材料配方; (iv)在(I)的存在下通过自由基水乳液聚合得到的聚合物水分散体。

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