Cleaning and liquid contact with solids – Processes – Work handled in bulk or groups
Reexamination Certificate
2007-04-12
2010-11-02
Mruk, Brian P (Department: 1796)
Cleaning and liquid contact with solids
Processes
Work handled in bulk or groups
C134S038000, C134S039000, C134S040000, C134S041000, C134S042000, C510S238000, C510S239000, C510S240000, C510S243000, C510S253000, C510S367000, C510S375000, C510S434000, C510S473000, C510S476000, C510S477000, C510S488000
Reexamination Certificate
active
07824503
ABSTRACT:
The invention pertains to an aqueous composition having a pH of 3 or less and comprising the following ingredients, based on the total weight of the composition: a) 0.05-40 wt % of a polymeric thickener having —COOR groups, wherein R is independently chosen from H, OH, and a carbon-containing group, and b) 0.05-60 wt % of hydrogen peroxide, wherein the active oxygen content attributable to ingredient a) is at least 0.02 wt %, based on the total weight of the composition, with the proviso that (co)polymers prepared from (meth)acrylate monomers are absent.
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De Vries Bernhard
Gerritsen Rene
Iacobucci Paul Albert
Maslow Wasil
Meijer John
Akzo Nobel N.V.
Kenyon & Kenyon LLP
Mruk Brian P
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