Byk-chemie Gmbh

Stefan Moessmer

Karlheinz Haubennestel

Ulrich Orth

Daniela Betcke

Wolfgang Pritschins

Daniela Leutfeld

Thomas Launag

Holger Heilmann

Sascha Huebers

Baerbel Gertzen

Matthias Pickave

The invention relates to addition compounds which are obtainable by reacting

Addition compounds as dispersants and dispersion stabilizers

The invention relates to amide-containing polymers of the general formula (I)A-X&#x2014;CO&#x2014;(CH)&#x2014;NR&#x2014;R&#x2014;[Y&#x2014;R&#x2014;Y&#x2014;R)&#x2014;B&#x2003;&#x2003;(I)and also their salts with carboxylic acids, phosphoric esters and sulphonic acids. The invention further relates to processes for preparing the amide-containing polymers and to their use as rheology control agents.

Amide-containing polymers for rheology control

The invention relates to biuret compounds of the idealized general formula in which Ris a (C-C)-alkylene, (C-C)-alkenylene, (C-C)-cycloalkylene, arylene, (C-C)-aralkylene, a polyoxyalkylene radical or is a polyester radical,

Biuret compounds for rheology control

The present invention relates to biuret compounds of the general formula in which Ris C-Calkylene, cycloalkylene, arylene or aralkylene, Y is &#x2014;O&#x2014; and/or &#x2014;NH&#x2014;, Ris C-Calkyl, C-Calkenyl, cycloalkyl, aralkyl, CH(O&#x2014;CH)&#x2014;(O&#x2014;CH(CH)&#x2014;CH), CH(OOC&#x2014;CH), X&#x2014;CH&#x2014;(O&#x2014;CH)&#x2014;(O&#x2014;CH(CH)&#x2014;CH), where m=1-22, n=2-4, x=0-15, u=0-15, v=4-5, X is C-Calkyl, &#x2014;(CH)and R, Rand Rare C-Calkylene, cycloalkylene, arylene or aralkylene, it being possible for R, Rand Rto be identical or different, Z is &#x2014;COO&#x2014;, NHCO&#x2014;, NHCOO&#x2014;, NHCONH&#x2014; and/or mixtures thereof and a is 1-20. The invention also relates to a process for preparing biuret compounds and to their use as rheology control agents. The invention further relates to urethane- and/or urea-containing uretdiones which are useful intermediates for preparing the biuret compounds.

Biuret compounds, their preparation and use, and intermediates in their preparation

The invention relates to a polymeric urea-urethane obtainable by first reacting a diisocyanate with a polyol to form a doubly NCO-terminated urethane prepolymer. Further reaction is subsequently carried out with a mixture of a primary monoamine and a primary diamine. After the second reaction the polymeric urea-urethane present is substantially free of isocyanate and of the monoamine and diamine used. It can be used as an agent for controlling the rheology of liquid polymers or polymer solutions.

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Wesel, Germany

Stefan Moessmer