Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – For cleaning a specific substrate or removing a specific...
Reexamination Certificate
2006-04-25
2006-04-25
Mruk, Brian P. (Department: 1751)
Cleaning compositions for solid surfaces, auxiliary compositions
Cleaning compositions or processes of preparing
For cleaning a specific substrate or removing a specific...
C510S249000, C510S250000, C510S253000, C510S462000, C510S474000
Reexamination Certificate
active
07033982
ABSTRACT:
A cleaning product comprising about 1% to 5% by weight cornstarch; about 17% to 27% by weight of an acid with a pH of about 2.5–3.5; about 52% to 62% by weight of a surfactant; about 7% to 17% by weight NaCl, wherein said cornstarch, said acid, said surfactant, and said NaCl are added together and heated to a slow bubbling boil and said cleaning composition appears smooth and milk-like in appearance and then heat reduced; and about 4% to 8% by weight oxalic acid dehydrate wherein said oxalic acid dehydrate is provided from the source manufactured under the tradename Barkeeper's Friend by SerVaas Laboratories of Indianapolis, Ind. and further wherein said compound is added after heat is reduced. The cleaning composition is useful for cleaning various types of metals.
REFERENCES:
patent: 5653917 (1997-08-01), Singerman
patent: 5698041 (1997-12-01), Woo et al.
patent: 5866712 (1999-02-01), Sanchez
Aylor William
Gwinn Dusty
Mruk Brian P.
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