Colloid systems and wetting agents; subcombinations thereof; pro – Continuous liquid or supercritical phase: colloid systems;... – Aqueous continuous liquid phase and discontinuous phase...
Reexamination Certificate
2006-12-07
2009-11-10
Choi, Ling-Siu (Department: 1796)
Colloid systems and wetting agents; subcombinations thereof; pro
Continuous liquid or supercritical phase: colloid systems;...
Aqueous continuous liquid phase and discontinuous phase...
C423S625000, C501S153000
Reexamination Certificate
active
07615577
ABSTRACT:
Aqueous dispersion containing transition aluminium oxide as only solid and a dispersant, in which—the transition aluminium oxide is present in the form of aggregates of primary particles, the content of transition aluminium oxide in the dispersion is from 40 to 65% by weight, the aggregates in the dispersion have a mean aggregate diameter of less than 100 nm,—the dispersant contains polyaluminium hydroxychloride, polyaluminium hydroxynitrate and/or polyaluminium hydroxysulphate, the dispersion has a pH of from 3 to 5.
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Lach Heinz
Lortz Wolfgang
Von Seyerl Joachim
Choi Ling-Siu
Evonik Degussa GmbH
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
Wang Chun-Cheng
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