Evonik Operations Gmbh

Evonik Degussa Gmbh

Ralf Klawikowski

Wiebke Stache

Emmanouil Spyrou

Annegret Lilienthal

Markus Hallack

Sabine Naumann

Tobias Unkelhäußer

Thomas Klotzbach

Iris Brückner

Sina Ballauf

Judith Schoder

Tina Bauer

Jan Pfingsten

Bartholomäus Buchczik

Tobias Unkelhäusser

Crosslinkers based on alkoxysilanes and alkoxysilane mixtures containing an isocyanate group can be used as a starting component in the production of coating compositions or as paint binder component, or can be used with adhesive o sealant binders o binder components having g ups reactive toward alkoxysilane groups.

Low-viscosity crosslinkers containing alkoxysilane groups

A binder that can be used in a paint composition, an adhesive composition, and/or a sealant composition. The binder includes a reaction product formed from an adduct (A) of an isocyanatoalkylalkoxysilane (A1) and an alcohol (A2) with an alkoxysilane-containing Q unit-free alkyl- and/or arylsilicone resin (B).

Isocyanatoalkyl alkoxysilane adducts modified by silicone resins and the use thereof

The present invention relates to alkoxysilane-functionalized, allophanate-containing coating compositions, to a process for producing them, and to their use. In particular, the alkoxysilane-functionalized, allophanate-containing coating compositions include a) as a binder component, 10-99 wt % of at least one reaction product of i) at least one monourethane i) containing alkoxysilane groups and of the formula 1R(OR)Si&#x2014;R&#x2014;NH&#x2014;(C&#x2550;O)&#x2014;OR&#x2003;&#x2003;formula 1where R, R, Rand Rare each independently hydrocarbyl radicals having 1-8 carbon atoms, which may be linear, branched or cyclic, or else may be integrated together to form a cyclic system, and n is 0-2, and ii) at least one diisocyanate ii), in a molar ratio of i) to ii) of from 3:1 to 1.5:1, preferably from 2.5:1 to 1.8:1, particularly preferably 2:1; b) 1-90 wt % of at least one other binder component, different from a), preferably a hydroxyl-containing or amino-containing binder component, c) 0-50 wt % of at least one aromatic, aliphatic or cycloaliphatic polyisocyanate having an NCO functionality of at least 2, preferably 2.8 to 6, d) 0-5 wt % of at least one catalyst, where components a)-d) add up to 100 wt %.

Alkoxysilane-functionalized allophanate-containing coating compositions

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Recklinghausen, Germany

Ralf Klawikowski