Dispersants

Colloid systems and wetting agents; subcombinations thereof; pro – Continuous liquid or supercritical phase: colloid systems;... – Primarily organic continuous liquid phase

Reexamination Certificate

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Details

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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JPO, Patent Abstracts of Japan, Japan patent Office, JP 09-194585 A, (DAICEL), abstract, pp. 1-2, (Jul. 1997) http://www19.ipdl.ncipi.gp.jp/PA1/cgi-bin/PA1INDEX.
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Derwent Abstract on WEST, week 199740 , London: Derwent Publications Ltd., AN 1997-431534, Class A23, JP 09-194585 A, (DAICEL), abstract.

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