Clariant International Ltd

Clariant Finance (bvi) Limited

Michael Schäfer

Matthias Krull

Michael Feustel

Christoph Kayser

Dirk Fischer

Karl Heinz Heier

Gundula Starkulla

Gernold Botthof

Anton Kaiser

Jürgen Tonhauser

Claudia Diemel

Paul Kaufmann

Katharina Götz

Rashod Smith

Katharina GÖTZ

This invention relates to water-soluble or water-swellable polymers, containing a) 25-35 mol. % of one or more recurrent structural units of formula (1), where Rand Rrepresent hydrogen, methyl or ethyl, A represents a linear or branched C-C-alkylene, and Qstands for NH, Li, Na, K, &#xbd; Ca, &#xbd; Mg, &#xbd; Zn, &#x2153; Al, or organic ammonium ions of the formula [HNRRR], b) 3 to 8 mol. % of one or more recurrent structural units of formula (2), where Rrepresents hydrogen, methyl, or ethyl, Xstands for H, NH, Li, Na, K, &#xbd; Ca, &#xbd; Mg, &#xbd; Zn, &#x2153; Al, or organic ammonium ions of the formula [HNRRR], B is a linear or branched alkylene group with 1 to 6 carbon atoms, and n is a whole number between 0 and 5, and c) 57 to 72 mol. % of a (meth)acrylamide.

Water-soluble or water-swellable polymers as water loss reducers in cement slurries

The present invention relates to a compound according to Formula (3), wherein the compound comprises from 28 wt. % to 100 wt. % bio-based carbon content, relative to the total mass of carbon in the compound, measured according to standard ASTM D6866-12, Method B;  and wherein Xis a proton. The present invention also relates to a polymer obtained by polymerising at least one of compound according to Formula (3), in addition to processes and uses related thereto.

Compound comprising certain level of bio-based carbon

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Gründau-Rothenbergen, Germany

Michael Schäfer