Dispersants

Details Dispersants Dispersants

2008-02-01

2011-12-13

Metzmaier, Daniel S (Department: 1762)

Colloid systems and wetting agents; subcombinations thereof; pro

Continuous liquid or supercritical phase: colloid systems;...

Primarily organic continuous liquid phase

C516S056000, C516S057000, C516S199000, C558S070000, C558S180000, C528S354000, C528S356000, C528S359000, C525S411000, C525S413000, C525S415000, C106S031890, C106S503000, C524S115000, C524S539000, C523S160000, C523S161000

Reexamination Certificate

active

08076378

ABSTRACT:
A dispersant comprising a polyester chain obtainable by polymerising a hydroxy carboxylic acid or lactone thereof such as ε-caprolactone with a cyclic alkylene carbonate such as 5,5-dimethyltrimethylene carbonate. The dispersant may be in the form of a phosphate ester where the polyester chain is reacted with a phosphating agent such as polyphosphoric acid or the polyester chain may be attached to a polyamine or polyimine such as polyethyleneimine.

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