C - Chemistry – Metallurgy – 11 – D
Patent
C - Chemistry, Metallurgy
11
D
C11D 1/83 (2006.01) B08B 3/04 (2006.01) C11D 1/14 (2006.01) C11D 1/75 (2006.01) C11D 3/10 (2006.01)
Patent
CA 2390996
Aqueous cleaning solution concentrates with elevated levels of N-alkyl-2- pyrrolidone solubilized therein, comprising a surfactant formulation incorporating at least one N-alkyl-2-pyrrolidone, the alkyl group of which has 6 to 12 carbon atoms, and a C6-10 alkane sulfonate hydrotrope for the N-alkyl-2-pyrrolidone in a hydrotrope/pyrrolidone weight ratio of 0.9 to 5.0 %.
L'invention concerne des concentrés de solutions de nettoyage aqueuses contenant des niveaux élevés de N-alkyl-2-pyrrolidone dissoute dans ces solutions. Ces concentrés comprennent une formulation de tensioactif incorporant au moins une N-alkyl-2-pyrrolidone dont le groupe alkyle possède 6 à 12 atomes de carbone et un alcane sulfonate hydrotrope en C6-10 présent, le rapport en poids de hydrotrope/pyrrolidone étant de 0,9 à 5 %.
Cala Francis
Kester Jennifer L.
Church & Dwight Company Inc.
Goudreau Gage Dubuc
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