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:
Jul. 06, 1993
Filed:
Jul. 03, 1990
Makoto Sasaki, Kamakura, JP;
Yukio Kobayashi, Tokyo, JP;
Norimasa Ikeda, Otsu, JP;
Mitsuru Suezawa, Otsu, JP;
Nippon Oil Co., Ltd., Tokyo, JP;
Toray Industries Inc., Tokyo, JP;
Abstract
The ink composition of waterless plates containing as the vehicle a resin III obtained by a process comprising copolymerizing (component A) a five-membered cyclic compound having a conjugated double bond, such as cyclopentadiene and/or a Diels-Alder adduct thereof, (component B) an .alpha.-olefin, and in addition to this, (component A') an unsaturated aromatic hydrocarbon monomer containing a carbon-carbon double bond and a benzene ring within the molecule to obtain a hydrocarbon resin I, reacting the thus obtained hydrocarbon resin I with (component C) an unsaturated carboxylic acid and/or the anhydride thereof to obtain an acid-modified resin II and then thermally reacting the thus obtained acid-modified resin II with (component D) a phenol resin, or containing a modified resin IV obtained by lengthening the molecular chain of the resin III with (component E) a molecular-chain elongating agent in a hydrocarbon solvent with a boiling point of 200.degree. C. or more, a drying oil or a semi-drying oil or a mixture thereof.