Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1994-05-17
1995-06-13
Marquis, Melvyn I.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525158, 525169, 525179, 525282, 525375, 525423, 525438, 523500, 523501, C08F 800, C08L 6700
Patent
active
054243645
ABSTRACT:
The polymeric pigment dispersants of this invention are polyester/acrylic comb polymers which are the reaction product of 20-85% of a carboxylic functional polyester copolymer, 10-50% of an oxirane substituted acrylic copolymer, and 2 to 20% of an imide compound. These materials disperse a wide variety of pigments and are useful in solvent borne coatings where they can provide improved efficiency of pigment use, lower paint viscosity, and reduced emission of volatile organic solvent.
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Simms John A.
West Michael W. J.
E. I. du Pont de Nemours & Company
Gulakowski Randy
Konkol Chris P.
Marquis Melvyn I.
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