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:
Feb. 13, 1979
Filed:
Feb. 12, 1975
Albert Rudolphy, Wiesbaden-Biebrich, DE;
Hoechst Aktiengesellschaft, Frankfurt, DE;
Abstract
A process for the preparation of a printing ink binder which comprises simultaneously reacting (1) at least one hydrocarbon resin containing a predominant number of units of cyclopentadiene or derivatives thereof and having a bromine in the range 50 to 200, (2) at least one phenol-aldehyde component selected from the group consisting of a phenol-aldehyde condensation product and precursors therefor, the phenol content of which component consists predominantly of at least one phenol substituted by a hydrocarbon group, and (3) a natural resin component selected from the group consisting of a natural resinic acid, an ester and a metal salt thereof, said reaction mixture being free from .alpha.,.beta.-olefinically unsaturated dicarboxylic acids or derivatives thereof and a printing ink composition containing said binder in combination with a pigment and a non-aqueous medium.