Byk-chemie Gmbh

Werner Tiegs

Wolfgang Pritschins

Jürgen Omeis

Bernd Göbelt

Frederik Piestert

Natasa Meznaric

Daniela Schröder

Karlheinz Haubennestel

René Nagelsdiek

Andreas Okkel

Jörg Bömer

Sabine Stelz

Jennifer Heitzer

Eva Hoverath

Bernd GÖBELT

Natasa Meznarik

A reaction product containing urethane groups, comprising one or more species of the general formula (I)(R&#x2014;X)&#x2014;Z&#x2014;(XH)&#x2003;&#x2003;(I)

Urethane-group-containing reaction products

The present invention relates to a method for producing an additive composition which in particular contains specific urea urethanes. The additive composition is extremely suitable as a wetting agent and dispersant.

Method for producing dispersant additives

Phosphoric acid derivatives, which are present as urea urethanes and contain a radical with an affinity for the binder in addition to at least one phosphoric acid ester group. Said phosphoric acid derivatives are especially suitable as wetting agents and dispersants. The derivatives are present according to the general formula (I)Y(&#x2014;O&#x2014;CO&#x2014;NH&#x2014;R&#x2014;NH&#x2014;CO&#x2014;X&#x2014;Z)&#x2003;&#x2003;(I)

Dispersing additives based on phosphoric acid ester derivatives

The invention relates to copolymers, suitable as wetting agents and dispersants, obtainable by copolymerizing (a) 1 to 80 mol % of at least one ethylenically unsaturated 1,2-dicarboxylic acid derivative, (b) 2 to 80 mol % of at least one unsaturated monocarboxylic acid derivative having 12 to 30 carbon atoms, (c) 1 to 90 mol % of at least one polyalkyleneoxyallyl ether having a number-average molecular weight of up to 5000 g/mol and (d) 0 to 30 mol % of further, unsaturated monomers; and also reaction products of the copolymers with ammonia, amines, water, alcohols, amino alcohols and/or alkali metal hydroxides or alkaline earth metal hydroxides. The invention further relates to a process for preparing the copolymers and to their use as wetting agents and dispersants in coating materials and moulding compounds.

Copolymers, preparation thereof and use as wetting agents and dispersants

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Rees, Germany

Werner Tiegs