Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V.

Mona Seyfried

Herbert Wolter

Somchith Nique

A compound has at least three functionalities, including a first functionality (a) that is a sulfonate group or a sulfate group of the formula &#x2014;(O)&#x2014;SOM with d=0 or 1 and with M=hydrogen or a monovalent metal cation or a corresponding portion of a multivalent metal cation; a second functionality (b) that is a (meth)acryl residue; and a third functionality (c) that is a carboxylic acid function and/or a thioether group. When the compound is free of silicon, the sulfonate or sulfate group and the (meth)acryl residue are separated from each other by a hydrocarbon-containing residue having a carbon chain. The carbon chain is interrupted by S or NH, or the carbon chain contains a linking group, selected from C(O)NH, NHC(O), NRC(O), NHC(O)O, NRC(O)O, NHC(O)NH, C(O)NHC(O) and &#x2014;C(O)S&#x2014;, wherein Ris alkyl or alkenyl or a (meth)acryl group.

Compounds containing (meth)acrylate groups and sulfonate or sulfate groups, polymers and condensates therefrom and use of the polymers and condensates

The invention relates to a compound, comprising at least three functionalities, that is (a) a sulfonate or sulfate group of the formula &#x2014;(O)&#x2014;SOM with d=0 or 1 and M=hydrogen or a monovalent metal cation or the corresponding fraction of a polyvalent metal cation, (b) a (meth)acryl group, and (c) either (c1) at least one further (meth)acryl group or an inorganically condensable group, and/or (c2) a further carboxylic acid function, and/or (c3) a function which increases the refractive index of a material produced from the compounds, that is a thioether group, with the proviso that a sulfonate or sulfate group and a (meth)acrylate group are separated from one another in a silicon-free compound via a hydrocarbon-containing group, the carbon chain of which is either interrupted by O, S or NH or contains a linking group.

Compounds containing (meth)acrylate groups and sulfonate or sulfate groups, polymers and condensates made therefrom and use of the polymers and condensates

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Wurzburg, Germany

Mona Seyfried