Aqueous cleaning solutions containing elevated levels of n-alkyl-2-pyrrolidone

摘要

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%.