Bayer Aktiengesellschaft

Mobay Corporation

Artur Haus

Hans J Rosenkranz

Gert Jabs

Manfred Dahm

Manfred Lorenz

Herbert Eichenauer

Hans Rudolph

Hans-Joachim Traenckner

Knud Reuter

Manfred Bock

Klaus Kunde

Gunther Boehmke

Rainer Hamprecht

Christian Wegner

Karl Fuhr

Norbert Weimann

Ulrich Nehen

Martin Michna

Gunther Reitz

Gunther Baatz

Rolf Richter

Gunter Stephan

Norbert Pusch

Manfred Patheiger

Werner Maurer

Walter Tames

Helmut P Prochaska

Johann Zimmer

Theodor Mager

Wilfried Roseler

Hans Rufolph

Hartmut Birmes

Erwin Plaza

Martin Meister

Klaus Rath

The new printing inks, comprising at least one dyestuff of the formula (I) ##STR1## are suitable for printing the most diverse carrier materials, in particular by means of an ink jet recording system.

Dyestuffs for printing inks

Aqueous emulsions based on certain graft polymers are outstandingly suitable for the production of colored inks for so-called marker pens. They are distinguished, for example, by a high storage stability.

Colored fluorescent polymer emulsions for marker pens: graft copolymers

Halftone gravure printing inks containing an azo dyestuff

Printing inks are described which utilize a unique class of coloring agents which are the reaction products of free NCO group bearing resins and dyestuffs bearing reactive hydrogens. A novel class of such adducts which contain monocarboxylic acid residues are also described. These printing inks, which may also contain traditional pigments, find particular utility in letterpress or offset printing.

Printing ink

Halftone gravure printing inks containing pyridone azo dyestuffs wherein the dyestuffs are obtained by reacting a pyridone dyestuff of the formula ##STR1## with a dicarboxylic or polycarboxylic acid or a pyridone azo dyestuff of the formula ##STR2## with a dihydroxy or polyhydroxy compound.

Halftone gravure printing inks containing pyridone azo dyestuffs

Condensation products which are obtained from formaldehyde, di-hydroxyaryl sulphones, phenols, if desired, and hydroxyarylcarboxylic acids and are prepared in a one-stage reaction at pH values between 2 and 5 are suitable as fixing agents for basic dyestuffs.

Formaldehyde condensates and their preparation

A process for the production of aqueous suspensions containing from 35 to 60% by weight of microcapsules by interfacial polyaddition from polyisocyanates and H-active compounds, wherein

Concentrated microcapsule suspensions for reaction copying papers

The invention relates to a pressure-sensitive, carbonless copying system and to a process for the production of pressure-sensitive, carbonless copying system wherein a non-aqueous, substantially solvent free printing ink containing micro-capsules which contain dye-precursors, is applied by wet and dry offset and book printing techniques to all or part of at least one surface of a paper substrate; and to printing inks comprising

Copying systems, a process for their production, and suitable printing

Condensation products which are obtained by reaction of aromatic hydroxycarboxylic acids with formaldehyde in a first stage and by a subsequent condensation reaction of the products with phenol and/or phenol derivatives in the molar ratio 1:(0.8-21):(0.6-20) are suitable as fixing agents for basic dyestuffs in paper printing.

Phenolic formaldehyde-salicylic acid condensation products

Fabrics of preferrably polyester fibres can be printed in deep yellow colors with good fastness properties if dyestuffs of the formula ##STR1## wherein X denotes hydrogen, chlorine, methyl, nitro, CF.sub.3 or cyano,

Transfer printing process

The invention relates to a resin composition that is curable by ultra-violet light, which composition comprises

Monomer-free resin compositions, based on unsaturated polyesters, which

A mixture which is hardenable by UV-light in an extremely short time comprising

Highly reactive resin compositions hardenable by UV-light

The invention relates to aqueous printing inks for the production of printed temporary supports, for transfer printing, by the film printing or screen printing process. The inks contain a sublimable disperse dyestuff, a binder, a filler and a thickener. The binder/filler weight ratio of the inks is 1 : 2 to 1 : 8, preferably 1 : 6 to 1 : 7.

Printing inks for transfer printing

Growing community of inventors

Overath, Germany

Artur Haus