Water-soluble copolymers based on olefinic sulfonic acids, method for the production thereof and use of the same
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United States of America Patent
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Apr 10, 2007
Grant Date -
Jun 30, 2005
app pub date -
Apr 9, 2003
filing date -
Apr 10, 2002
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Abstract
Water-soluble copolymers based on olefinic sulfonic acids, olefinic dicarboxylic acids, vinyl amides and vinyl ethers and/or allyl ethers and/or bisacryl derivatives are described as well as processes for their production and the use of these copolymers as water retention agents, thickeners or anti-segregation agents for aqueous building material systems that contain hydraulic binding agents such as cement, lime, gypsum, anhydrite etc. or for clay suspensions preferably based on bentonite.
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