首页> 外国专利> Aqueous compositions containing film forming polymer and sulfonic acid half ester salt, useful in coating mineral molded bodies, e.g. fibre-cement slabs, curbstones, stairs, plinths, form low water uptake coatings on such bodies

Aqueous compositions containing film forming polymer and sulfonic acid half ester salt, useful in coating mineral molded bodies, e.g. fibre-cement slabs, curbstones, stairs, plinths, form low water uptake coatings on such bodies

机译：含有成膜聚合物和磺酸半酯盐的水性组合物，可用于涂覆矿物模制体，例如铝，铝，铝，铝，铁，铝，铝，铁，铝，铝，铝，铁，铝，铁，铝，铝，铁，铝，铁，铝等。纤维水泥板，路缘石，楼梯，底座等在这些物体上形成低吸水率涂层

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摘要

Surprisingly, compositions containing a film forming polymer form coatings of low water uptake when the compositions contains a salt of sulfuric acid half ester of an ethoxylated 10-20C alkanol as emulsifier. Aqueous compositions containing: (i) at least one polymer as film former, obtained from an ethylenically unsaturated monomer M, which is dispersed in the aqueous phase of the compositions and have a glass transition temperature Tg in the region of -25 to+80 deg C, and (ii) at least one anionic emulsifier selected from salts of formula (I): Alk = linear or branched saturated 10-18C alkyl; Et = 1,2-ethylene; n exceeds 20 to 40, and M+ = monovalent cation or a cation equivalent, or mixtures of this salt optionally with various anionic emulsifiers are new. Independent claims are included for: (1) preparation of a coated mineral molded body with the composition deposited on at least one of its surfaces; (2) an aqueous mineral polymer dispersion obtainable by polymerization of an aqueous emulsion of at least one ethylenically unsaturated monomer M by radical emulsion polymerization in the presence of at least one radical polymerization initiator and at least two anionic emulsifying agents, comprising at least one salt of formula I and at least one salt of formula II below; (3) preparation of an aqueous polymer dispersion as in (2).

机译：令人惊讶地，当包含成膜聚合物的组合物包含乙氧基化的10-20C链烷醇的硫酸半酯的盐作为乳化剂时，其形成低吸水率的涂层。水性组合物，其包含：（i）至少一种由烯键式不饱和单体M获得的成膜剂聚合物，其分散在组合物的水相中，并且玻璃化转变温度Tg在-25至+80度范围内C;和（ii）至少一种选自式（I）盐的阴离子乳化剂：Alk =直链或支链的饱和10-18C烷基; Et = 1,2-乙烯; n超过20至40，并且M + ＝一价阳离子或阳离子当量，或该盐与任选的各种阴离子乳化剂的混合物是新的。包括以下独立权利要求：（1）制备涂覆的矿物模制体，其组合物沉积在其至少一个表面上; （2）可通过在至少一种自由基聚合引发剂和至少两种阴离子乳化剂的存在下通过自由基乳液聚合将至少一种烯键式不饱和单体M的水性乳液聚合而获得的矿物聚合物水分散体，其包含至少一种盐。式I和至少一种下式II的盐; （3）按照（2）的方法制备聚合物水分散体。

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公开/公告号DE19833917A1

专利类型
公开/公告日2000-02-03

原文格式PDF
申请/专利权人 BASF AG;
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申请/专利号DE19981033917
发明设计人 SCHWARTZ MANFRED;BECHERT BERTOLD;WIESE HARM;HUEMMER WOLFGANG;
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申请日1998-07-28
分类号C08F2/26;C08F220/10;C04B41/63;C08F218/04;C08F212/00;
国家 DE
入库时间 2022-08-22 01:42:40

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