Ink compositions for waterless plates

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...

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Details

525 68, 525139, 526272, 106 20R, 106 22R, C08L 7300

Patent

active

052254771

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.

REFERENCES:
patent: 4126739 (1978-11-01), Hoene et al.

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