Modified natural-resin acid esters, processes for their preparat

Chemistry: natural resins or derivatives; peptides or proteins; – Natural resins or derivatives

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530203, 530204, 530205, 530207, 530210, 530211, 530212, 530215, 530216, 530226, 530227, 530230, 530232, C09F 104, C09D 1108, C09D 1700, C09B 6720

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active

056986688

ABSTRACT:
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.

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Derwent Publication Ltd., London, GB; AN 87-358757/51, JP-A-62 260 810 (Toyo Ink Mfg. Co.) Nov. 13, 1987.
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Derwent Publications Ltd., London, GB; Class A21, AN 93-374744 XXPOO2016936 & JP-A-05 279 613 (Toyo Ink Mfg. Co.), 26 Oct. 1993.

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