Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – For cleaning a specific substrate or removing a specific...
Reexamination Certificate
2006-08-15
2006-08-15
Boyer, Charles (Department: 1751)
Cleaning compositions for solid surfaces, auxiliary compositions
Cleaning compositions or processes of preparing
For cleaning a specific substrate or removing a specific...
C510S220000, C510S223000, C510S225000, C510S229000, C510S237000, C510S269000, C510S421000, C510S422000, C510S434000, C510S477000, C510S490000
Reexamination Certificate
active
07091166
ABSTRACT:
An aqueous liquid composition comprising water; at least one acid selected from the group consisting of carboxylic acids, hydroxycarboxylic acids, and inorganic acids other than phosphoric acid wherein the at least one acid is present in an amount from about 1.0 to about 30 milliequivalents per kilogram of total composition (“mEq/kg”); and an amphoteric surfactant wherein the amphoteric surfactant is present in an amount from about 0.01 to about 20 grams per kilogram of total composition (“g/kg”), the aqueous liquid composition having a pH from about 2.0 to about 6.1 and having a reduced etch attack on metal as compared to an aqueous composition comprising from about 1.0 to about 30 milliequivalents per kilogram of total composition (“mEq/kg”) of acids selected from the group consisting of carboxylic, hydroxycarboxylic, and inorganic acids, and not containing the amphoteric surfactant.
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Boyer Charles
Cameron Mary K.
Harper Stephen D.
Henkel Kommanditgesellschaft auf Aktien
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