Cleaning solution for cleaning metal surfaces

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United States of America Patent

PATENT NO 11473036
APP PUB NO 20200140782A1
SERIAL NO

16624960

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Cleaning solution for cleaning and/or wetting metal surfaces, comprising

    at least one acid,a first surfactant, which is an alkyl-poly(ethyleneglycol-co-propyleneglycol)-ether having a cloud point of ≤25° C.,a second surfactant, which is selected from the group consisting of i) an alkyl-poly(ethyleneglycol-co-propyleneglycol)-ether having a cloud point of ≥30° C.,ii) an alkyl-polyethyleneglycol-ether having a cloud point of ≥45° C.wherein the cloud points are determined according to European Standard EN 1890:2006, item 8.2 of German Version, with the modification that 10 wt % H2SO4 is used as solvent and that the concentration of the surfactant is 1000 mg/L.

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Patent Owner(s)

Patent OwnerAddress
ATOTECH DEUTSCHLAND GMBH10553 BERLIN

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hantschick, Janos Berlin, DE 1 1
Klusmann, Eckart Berlin, DE 2 6

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