Colloid systems and wetting agents; subcombinations thereof; pro – Continuous liquid or supercritical phase: colloid systems;... – Primarily organic continuous liquid phase
Reexamination Certificate
2008-04-22
2008-04-22
Metzmaier, Daniel S. (Department: 1796)
Colloid systems and wetting agents; subcombinations thereof; pro
Continuous liquid or supercritical phase: colloid systems;...
Primarily organic continuous liquid phase
C516S067000, C516S069000, C516S203000, C106S504000, C106S505000, C558S180000, C524S538000, C524S539000, C523S160000, C523S161000
Reexamination Certificate
active
10474306
ABSTRACT:
A dispersant comprising a polyester chain obtainable by polymerising a hydroxy carboxylic acid or lactone thereof such as E-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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Esposito Michael F.
Laferty Samuel B.
Metzmaier Daniel S.
The Lubrizol Corporation
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