Flushing vehicles for preparing flushed organic pigments and met

Details Flushing vehicles for preparing flushed organic pigments and met Flushing vehicles for preparing flushed organic pigments and met

1993-11-16

1995-05-30

Michl, Paul R.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From carboxylic acid or derivative thereof

528129, 528336, 5283393, 528340, 528345, 528346, 524600, 524606, 524607, 523158, 523160, 527600, 260DIG38, 106262, C08G 834, C08G 6934

Patent

active

054202299

ABSTRACT:
A flushing vehicle for lithographic inks is the reaction product of a tall oil rosin-modified maleic ester resin with an acid number of less than about 30, and about 2-16 wt. %, based on the weight of the ester, of a polyamide resin with an amine number less than about 110. The flushing vehicle is prepared by heating a reaction mixture containing the rosin-modified ester and the polyamide resin to a temperature of about 190.degree.-280.degree. C.; and holding at a temperature of 190.degree.-280.degree. C. until the viscosity of the reaction mixture becomes constant.

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