Hoechst Aktiengesellschaft

Vianova Resins, Inc.

Roussel Uclaf

Hoechst Aktiengesellschaft Ag

Albert Bender

Lothar Bothe

Gerhard Werner

Dieter Guenther

Lothar Willms

Rainer Wingen

Manfred Schneider

Juergen Lingnau

Manfred Finke

Richard Sattelmeyer

Dieter Gunther

Erhard Leicht

Rainer Schunck

Astrid Giencke

Wolfgang Dathe

Walter Hilker

Modified natural-resin acid esters comprising units of compounds of each of the groups A) natural resins and natural-resin acids, B) aldehydes and aldehyde acetals, C) alcohols having at least two hydroxyl groups, D) metal salts and, if desired, of compounds of one or more of the groups E) .alpha.,.beta.-ethylenically unsaturated carboxylic acids and their anhydrides, F) fatty acids and fatty acid esters, G) ethylenically unsaturated hydrocarbon resins are suitable in pigment dispersions and pigment concentrates for printing inks. The natural-resin acid esters contain substantially no phenol or phenol-aldehyde condensation products.

Modified natural-resin acid-aldehyde adducts

Toluene-soluble modified natural-resin acid esters which can be prepared by reacting at least one compound from each of the component groups: A) natural resins or natural-resin acids; B) .alpha.,.beta.-ethylenically unsaturated carboxylic acids or their anhydrides; C) phenols which are polyfunctional with respect to oxo compounds; D) aldehydes or aldehyde acetals; E) alcohols having at least two hydroxyl groups; and, if desired, further compounds from the substance groups: F) fatty acids or fatty acid esters; G) ethylenically unsaturated monomers; H) ethylenically unsaturated hydrocarbon resins in the presence of: I) monovalent or divalent metal compounds or mixtures thereof at a temperature of from 100.degree. to 300 .degree. C., with elimination of water, to an acid number of less than 100 mg of KOH/g of resin, and then reacting the resulting products with: J) carboxylic acids which contain at least two carboxyl groups and are not .alpha.,.beta.-ethylenically unsaturated, or their anhydrides, in the temperature range from 200.degree. to 300 .degree. C.; are suitable as binder resins for the intaglio printing of illustrations.

Modified natural-resin acid esters, processes for their preparation, and

Phenolic-resin-modified natural resin acid esters, a process for their preparation and their use as binder resins printing inks. Phenolic-resin-modified natural resin acid esters obtained by reaction of

Phenolic-resin-modified natural resin acid esters, a process for their

Modified resinates

Toluene-soluble modified natural resin esters suitable as binder resins in ground pigments and printing inks for halftone gravure printing prepared by reacting at least one compound from each of the following substance groups A) to D)

Modified natural resin esters, processes for their preparation and their

An oil soluble, natural resin acid ester, modified with phenolic resin which ester is the reaction product of at least one compound of each of the following groups:

Self-gelling binder resins for offset-printing inks having improved

Phenolic-resin-modified cyclopentadiene resins, process for the preparation thereof and use thereof. Phenolic-resin-modified cyclopentadiene resins which can be used as binder in printing inks can be advantageously directly prepared from

Phenolic-resin-modified cyclopentadiene resins, process for the

Phenolic-resin-modified natural resin acid esters obtained by reaction of

Phenolic-resin-modified natural resin acid esters, processes for their

Oil-soluble, phenolic resin-modified natural resinic acid esters, which are able to form self-gelling mineral oil solutions and in the form of gel varnishes can advantageously be used as binder resins in printing inks for offset printing and letterpress printing, and also processes for their preparation from natural resins, phenols, aldehydes, condensation catalyst, esterifying agents and modifiers by reaction of the components at temperatures in the range from 80.degree. to 300.degree. C., individual components preferably being initially introduced and the other components being metered in, the combined use of a magnesium compound as condensation catalyst and the continuous removal of the water of reaction during the condensation reaction by azeotropic distillation with co-use of an inert organic solvent as distillative entraining agent being necessary and decisive for the self-gelling property of the process product.

Oil-soluble, phenolic resin-modified natural resinic acid esters,

Process for the preparation of modified phenolic resins in which the starting components used for preparation of these modified phenolic resins are subjected to a condensation reaction under pressure and in the presence of an inert organic solvent which forms an azeotrope with water, and in which the water is removed from the reaction mixture continuously by azeotropic distillation. An improved space/time yield is achieved by this pressure distillation.

Process for the preparation of modified phenolic resins

Phenolic-resin-modified cyclopentadiene resins, process for the preparation thereof and use thereof Phenolic-resin-modified cyclopentadiene resins which can be used as binder in printing inks can be advantageously directly prepared from

Modified cyclopentadiene resins comprising essentially a) 20 to 80% by weight of cyclopentadiene compounds, b) 1 to 40% by weight of natural resin acids and c) 31 to 70% by weight of phenol resins. These compounds are suitable as binder resins for printing inks. They are distinguished by excellent compatibility with aromatics-free mineral oils and with vegetable oils.

Modified cyclopentadiene resin

Cyclopentadiene-modified alkyd resins obtained by reaction of naturally occurring, unsaturated fatty acid esters with cyclopentadiene compounds under pressure, transesterification of the resulting adducts with polyols which contain at least three hydroxyl groups, and esterification with aromatic or cycloaliphatic polycarboxylic acids or anhydrides thereof. These resins are employed in the preparation of printing inks for offset printing. The novel resins impart an improved gloss to these printing inks.

Cyclopentadiene-modified alkyd resins

Polymers which contain units of 4-hydroxystyrene and/or of 4-acetoxystyrene, where appropriate in a mixture with other comonomer units, in particular butadiene, can be used in place of phenolic or resorcinol resins as reinforcing resins and adhesion promoters in rubber mixtures. These polymers are distinguished by the fact that, coupled with at least equally good effectiveness, they do not release any phenolic materials into the environment on incorporation into rubber mixtures.

Use of polymers which contain units derived from 4-hydroxystyrene or

The invention relates to readily storable flushed pastes of pigments of the arylparaosanilinesulfonic acid series, consisting essentially of (a) up to 50% by weight of the pigment, in a binder combination of (b) natural resin esters based on unmodified or modified natural resins with monohydric or polyhydric C.sub.1 -C.sub.20 -alcohols, and (c) long-oily alkyd resins having an oil content of 60% to 90% by weight dissolved in high-boiling mineral oil. These formulations are prepared from aqueous presscakes of pigment (a) by flushing in the presence of the solution of a mixture of at least one natural resin ester (b) and at least one alkyd resin (c) in mineral oil (d) with elimination of water. The novel pigment formulations are used for producing printing inks for letterpress and offset printing.

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Mainz, Germany

Albert Bender