Dispersants for pigments in waterborne coatings compositions

Compositions: coating or plastic – Materials or ingredients – Pigment – filler – or aggregate compositions – e.g. – stone,...

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106 1412, 106 1415, 10628717, 10628723, 10628725, 10628729, 106401, 106403, 106499, C09C 162

Patent

active

053206738

ABSTRACT:
A compound is described that is useful as a dispersant for inorganic pigments and metallic flake pigments in waterborne coatings. The compound comprises a polymeric backbone having a pigment-interactive substituent and a stabilizing substituent.
The pigment-interactive substituent has at least one functionality selected from the group consisting of ##STR1## wherein A.sub.1, A.sub.2, A.sub.3, and A.sub.4 are as defined herein. The stabilizing substituent includes the structure ##STR2## wherein D.sub.1, D.sub.2, R.sub.1, R.sub.2, R.sub.3, m, and n are as defined herein.

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patent: 4565716 (1986-01-01), Williams, Jr. et al.
patent: 4675358 (1987-06-01), Frangou
patent: 4750940 (1988-06-01), Higashi et al.
patent: 5039343 (1991-08-01), Umeda et al.
patent: 5057156 (1991-10-01), Kuwajima et al.

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