Invention Grant
- Patent Title: Aqueous solution containing copolymers with polyether side chains
- Patent Title (中): 含有聚醚侧链的共聚物的水溶液
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Application No.: US12867016Application Date: 2009-01-12
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Publication No.: US08349983B2Publication Date: 2013-01-08
- Inventor: Klaus Lorenz , Gerhard Albrecht , Silke Flakus , Alexander Kraus , Helmut Mack , Petra Wagner , Barbara Wimmer , Christian Scholz , Angelika Hartl , Martin Winklbauer
- Applicant: Klaus Lorenz , Gerhard Albrecht , Silke Flakus , Alexander Kraus , Helmut Mack , Petra Wagner , Barbara Wimmer , Christian Scholz , Angelika Hartl , Martin Winklbauer
- Applicant Address: DE Trostberg
- Assignee: Construction Research & Technology GmbH
- Current Assignee: Construction Research & Technology GmbH
- Current Assignee Address: DE Trostberg
- Agency: Curatolo Sidoti Co, LPA
- Agent Joseph G. Curatolo; Vincent A. Cortese
- Priority: EP08101596 20080213
- International Application: PCT/EP2009/050263 WO 20090112
- International Announcement: WO2009/100958 WO 20090820
- Main IPC: C08F220/06
- IPC: C08F220/06 ; C08F290/06
Abstract:
The invention relates to a process for the preparation of an aqueous solution comprising 30 to 95% by weight of water and 5 to 70% by weight of a copolymer dissolved in the water by free radical solution polymerizations of an isoprenol polyether derivative with an acrylic acid derivative, so that the copolymer has 20 to 45 mol % of an isoprenol polyether derivative structural unit and 55 to 80 mol % of an acrylic acid derivative structural unit. The aqueous solution is suitable as a superplasticizer for hydraulic binders.
Public/Granted literature
- US20110034592A1 Aqueous Solution Containing Copolymers with Polyether Side Chains Public/Granted day:2011-02-10
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