MINERALÖLLÖSUNGEN VON OXIDATIV VERNETZENDEN URETHANHARZEN

Oxidatively crosslinking, essentially isocyanate-free urethane resins obtainable by reacting A) 100 parts by weight of an ester made from (a1) an aliphatic C3-C8-alcohol containing at least three hydroxyl groups and (a2) an unsaturated C8-C40-fatty acid and (a3) if desired an aliphatic or aromatic p...

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Bibliographische Detailangaben
Hauptverfasser:	LAWRENZ, DIRK, PRANTL, BERNHARD, WALZ, ROLF
Format:	Patent
Sprache:	ger
Schlagworte:	ADHESIVES CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS CORRECTING FLUIDS DYES FILLING PASTES INKS MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING POLISHES THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	Oxidatively crosslinking, essentially isocyanate-free urethane resins obtainable by reacting A) 100 parts by weight of an ester made from (a1) an aliphatic C3-C8-alcohol containing at least three hydroxyl groups and (a2) an unsaturated C8-C40-fatty acid and (a3) if desired an aliphatic or aromatic polycarboxylic acid having 4-20 carbon atoms, or anhydrides thereof, in amounts of up to 60% by weight, based on the fatty acid a2) where the ester contains sufficient free hydroxyl groups to correspond to an OH number of 50-150 mg KOH/g, with B) (b1) 3-120 parts by weight of C5-C15-polyhydroxycarboxylic acids containing at least two hydroxyl groups and (b2) 10-100 parts by weight of an aliphatic or cycloaliphatic polyisocyanate, or mixtures thereof, at 50-150 DEG C in the presence of apolar solvents which are inert towards isocyanates. These resins are suitable for use as constituents of printing inks.