Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent
1989-01-17
1990-08-28
Lilling, Herbert J.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
106189, 106195, 106237, 106419, 106425, 106429, 106456, 106459, 106460, 523206, 523456, 523459, 523511, 523516, 524269, 524386, 524388, 524431, 524435, 524586, C08K 310, C08K 904, C08K 505, C08J 320
Patent
active
049526170
ABSTRACT:
A pigment dispersion of enhanced viscosity and heat stability characteristics for use in coating systems is provided. The pigment dispersions generally comprise a pigment carrier, a pigment of the type having a hydrophilic surface, and a surfactant functional as a dispersant in a relatively non polar matrix and which is present on the surface of the pigment in an effective amount. Pigment carriers include water-based carriers and organic solvent-based carriers. Finished coatings having improved viscosity and heat stability are also provided. The finished coatings comprise a coating base and the surfactant treated pigments. Such pigments include iron oxide pigments yellow iron oxide pigment, black iron oxide pigment, divalent ferrite pigments, zinc ferrite pigment, and magnesium ferrite pigment. Such surfactants include trimethylol propane, and trimethylol ethane.
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Ayala Jorge A.
Joyce George A.
Columbian Chemicals Company
Lilling Herbert J.
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