Printing inks containing oxidatively crosslinkable urethane resins

Oxidatively crosslinking essentially isocyanate-free urethane resins, obtainable by reacting A) 100 parts by weight of an ester of (a1) an aliphatic C3-C8-alcohol having three or more hydroxyl groups and (a2) an unsaturated C8-C40-fatty acid and (a3) if required, an aliphatic or aromatic polycarboxy...

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Bibliographische Detailangaben
Hauptverfasser:	LAWRENZ, DIRK, PRANTL, BERNHARD, WALZ, ROLF
Format:	Patent
Sprache:	eng
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 of (a1) an aliphatic C3-C8-alcohol having three or more hydroxyl groups and (a2) an unsaturated C8-C40-fatty acid and (a3) if required, an aliphatic or aromatic polycarboxylic acid of 4 to 20 carbon atoms or an anhydride thereof, in amounts of up to 60% by weight, based on the fatty acid a2), the ester containing sufficient free hydroxyl groups to correspond to an OH number of 50-150 mg of KOH/g, with B) (b1) 3-120 parts by weight of C5-C15-polyhydroxycarboxylic acids having two or more hydroxyl groups and (b2) 10-100 parts by weight of an aliphatic or cycloaliphatic polyisocyanate or a mixture thereof, at 50 DEG -150 DEG C. in the presence of a nonpolar solvent which is inert to isocyanates, are suitable for use as printing ink components.