Aqueous pigment-dispersed paste, processes for producing it and

Details Aqueous pigment-dispersed paste, processes for producing it and Aqueous pigment-dispersed paste, processes for producing it and

1992-11-02

1993-07-13

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...

524495, 524496, 524497, 524555, C08K 304, C08K 334

Patent

active

052274217

ABSTRACT:
A resin having both an acidic and a basic functional group is dissolved in an aqueous medium by neutralizing the acidic functional group with a basic compound and a pigment is dispersed in the aqueous medium by the action of the resin. To improve the dispersibility of the pigment and dispersion stability and coated film performance, a pK.sub.b value of the basic functional group of the resin is equal to or less than a pK.sub.b value of the basic compound.

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