Hoechst Aktiengesellschaft

Rudiger Lenz

Gerd Walz

Michael Honel

Manfred Finke

Peter Ziegler

Gerhard Brindopke

Walter Sprenger

Edgar Vorwerk

Hartmut Foedde

Gerhard Brincopke

Polyamines based on derivatives of 1,3-bissubstituted 2-propanol containing a multiplicity of amino groups, the latter containing at least one primary amino group and additionally further N-basic groupings, prepared by reacting 1,2,3-trisubstituted propane compounds with bis(primary amines or with monoamines and bis(primary amines). The polyamines according to the invention are clear to yellowish or yellow products which, at room temperature, form viscous to highly viscous liquids or may be paste-like or wax-like. They may be used, inter alia, advantageously as starting products for the preparation of thermosetting, in particular water-dispersible and cataphoretically depositable binders based on aminourethanes for coating solid substrates, in particular metals.

Derivatives of 1,3-bissubstituted 2-propanol containing amino groups,

Curing component (A) based on polyisocyanates for binders (B) which contain groups containing active hydrogen, wherein the curing component (A) is a product of the reaction of (a1) polyisocyanates with (a2) .alpha.-hydroxyalkylpyridines. Mixtures of (A) and (B), and also, if appropriate, diluents (C) and additives (D), are stable on storage and give, even at temperatures of 120.degree.-140.degree. C., curing products which are sufficiently solvent-stable. They are suitable, in particular, for surface-coating preparations.

Curing component for synthetic resins, curable mixtures containing the

The invention relates to aminourethanes essentially composed of structural units derived from (.alpha.) polyamines of the general formula (I) ##STR1## and of structural units derived from (.beta.) oligomeric or polymeric compounds which contain at least one terminal 2-oxo-1,3-dioxolane group. The invention further relates to a process for preparing these aminourethanes and to their use in particular in paint formulations. The aminourethanes according to the invention are suitable in particular for use as curable water-dispersible binders in particular for cationic electrocoating.

Aminourethanes, preparation and use thereof

Aminourethanes, a process for their preparation and their use The invention relates to aminourethanes composed essentially of structural units derived from

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Rudiger Lenz