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:
Dec. 11, 1990
Filed:
Nov. 28, 1988
Gerhard Werner, Glashutten/Taunus, DE;
Hoechst AG, , DE;
Abstract
A modified cyclopentadiene resin which comprises (a) 40 to 90% by weight of units of monomeric or oligomeric cyclopentadiene and/or its alkyl-substitution products, (b) 1 to 30% by weight of resols, (c) 5 to 40% by weight of non-aromatic, unsaturated monocarboxylic acids having 8 to 26 carbon atoms, (d) 0 to 10% by weight of .alpha.,.beta.-olefinic, unsaturated dicarboxylic acid units, (e) 0 to 20% by weight of other copolymerizable monomers and/or (f) 0 to 3% by weight of a metal compound from the groups IIa, IIb or IIIa of the periodic system, the sum of the components (a) to (f) always being 100% by weight, a single-stage process for its preparation, and the use of the modified cyclopentadiene resins as binders for printing inks, particularly for gravure inks.