C - Chemistry – Metallurgy – 10 – M
Patent
C - Chemistry, Metallurgy
10
M
C10M 173/00 (2006.01) C23F 11/12 (2006.01)
Patent
CA 2067501
- 24 - PROCESS FOR PREPARING STABLE LOW-VISCOSITY O/W RUST-INHIBITING EMULSIONS Abstract of the Disclosure The invention relates to a process for preparing stable low-viscosity O/W rust-inhibiting emulsions, wherein a mixture containing an oil component, water and at least one emulsifier component is emulsified at a temperature where all components of the mixture are in the liquid state and the emulsion formed is heated at a temperature within or above the temperature range of phase inversion, or the mixture is emulsified at a temperature within or above the temperature range of phase inversion, followed by cooling the resulting emulsion to a temperature below said temperature rang- and optionally by dilution with water, characterized in that a mixture having the following composition is employed for the formation of the emulsion a) from 10 to 60% by weight of an oil component, b) from 1 to 10% by weight of an emulsifier component consisting of at least one addition product of from 2 to 20 moles of ethylene oxide to fatty alcohols having from 10 to 22 carbon atoms, c) from 1 to 10% by weight of a corrosion inhibitor consisting of at least one carboxylic acid having the general formula (I) R-COOH (I) , wherein R represents a straight-chain or branched saturated or unsaturated alkyl moiety com- prising from 6 to 22 carbon atoms or a moiety having the general formula (II) - 25 - Image (II) , wherein R1 represents a saturated straight-chain or branched alkyl moiety comprising from 8 to 18 carbon atoms, d) from 0 to 10% by weight of co-emulsifier component consisting of at least one fatty alcohol comprising from 12 to 22 carbon atoms, and e) water as the balance.
Geke Juergen
Speckmann Horst-Dieter
Striepling Gert-Lothar
Wiechmann Frank
Borden Ladner Gervais Llp
Geke Juergen
Henkel Kommanditgesellschaft Auf Aktien
Speckmann Horst-Dieter
Striepling Gert-Lothar
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