The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 12, 1985
Filed:
Mar. 29, 1984
Albert Rudolphy, Wiesbaden, DE;
Gerhard Werner, Glashutten, DE;
Hoechst Aktiengesellschaft, , DE;
Abstract
Process for preparing printing ink binders based on reaction products of (a) natural resins, (b) other synthetic resins, (c) .alpha.,.beta.-olefinically unsaturated carboxylic acid units and (d) calcium compounds and, if appropriate, other compounds of metals of group II of the periodic system. The compounds (a) to (c) are reacted to give a product having an acid number of 75 to 150, which is then reacted with metal compounds in such a way that the acid number is reduced by at least one third. Unreacted metal compounds present in the resulting reaction product are then converted by means of acetic acid, via acetates, into salts of the resins. The resulting binders are used for preparing printing inks.