发明名称 |
Branched polycarboxylate ethers |
摘要 |
<p>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.</p> |
申请公布号 |
EP2774941(A1) |
申请公布日期 |
2014.09.10 |
申请号 |
EP20130157927 |
申请日期 |
2013.03.06 |
申请人 |
CONSTRUCTION RESEARCH & TECHNOLOGY GMBH |
发明人 |
RAETHER, ROMAN BENEDIKT;FLAKUS, SILKE;DENGLER, JOACHIM;ZEMINIAN, NICOLETTA;ROS, IDA |
分类号 |
C08G65/00 |
主分类号 |
C08G65/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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