Vegetable oil based thermosetting lithographic ink system

Details Vegetable oil based thermosetting lithographic ink system Vegetable oil based thermosetting lithographic ink system

1995-03-06

1996-09-03

Michl, Paul R.

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...

524394, 524398, 524399, 524423, 523160, 106 27K, 106 20R, 106 27B, 106 30R, 106 30C, 430949, 101451, 101452, 101457, C08L 2300, C08K 504, C03C 1700, C09D 1106

Patent

active

055524672

ABSTRACT:
Rapid thermosetting, low VOC web offset lithographic inks are prepared in the instant invention from solid resin, drying oil alkyds, bodied drying oil, vegetable oil, fatty acids, multifunctional unsaturated polyester, reducing agents and transition metal salts of organic acids. The aqueous lithographic fountain solution contains hydroperoxides or peroxides which promote free radical polymerization of the ink in contact therewith. The metal salts of organic acids function as crosslinking agents in combination with excess carboxylic acid functionality of the ink. Optionally, the reducing agent and the organic hydroperoxide or peroxide may be interchanged.

REFERENCES:
patent: 4253397 (1981-03-01), Emmons et al.
patent: 4604952 (1986-08-01), Daugherty
patent: 5308390 (1994-05-01), Pennaz

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