申请人:Construction Research & Technology GmbH
公开号:EP2774941A1
公开(公告)日:2014-09-10
The invention relates to branched polyether macromonomers, which comprise structural units, derived by copolymerisation of alkylene oxides and glycol glycidyl ethers. It relates to a method of manufacturing a polyether macromonomer wherein either in a polyaddition reaction an unsaturated alcohol is reacted with an alkylene oxide and an glycol glycidyl ether, or a branched mono hydroxy polyalkylenoxide, derived by polyaddition of alkylene oxides with alkylene glycol glycidyl ethers is esterified with (meth)acrylic acid. It further comprises a (co)polymer containing structural units being derived from the polyether macromonomers. As methods of use of the (co)polymers in aqueous mixtures of inorganic particles are concerned the use as dispersant, as a means for reduction of the viscosity of concrete and as grinding aid for the production of (Portland) cement. The invention concerns also building material mixtures containing a (co)polymer according to this invention.
本发明涉及支化聚醚大单体,它由结构单元组成,由氧化亚烷和缩水甘油醚共聚而成。本发明涉及一种聚醚大单体的制造方法,在该方法中,不饱和醇与氧化亚烷基和乙二醇缩水甘油醚进行加成反应,或将氧化亚烷基与乙二醇缩水甘油醚加成反应得到的支化单羟基聚亚烷基氧化物与(甲基)丙烯酸进行酯化反应。它还包括一种含有由聚醚大单体衍生的结构单元的(共)聚合物。在无机颗粒的水性混合物中使用(共)聚合物的方法包括用作分散剂、降低混凝土粘度以及用作生产(波特兰)水泥的助磨剂。本发明还涉及含有本发明(共)聚合物的建筑材料混合物。