Cleaning compsn. - contg. refined gasoline, benzyl alcohol, lower aliphatic ester and emulsifier

摘要

A cleaning compsn. contains (a) 10-40 wt.% of a refined gasoline with b.pt. 130-220 deg.C and Abel-Pensky flash point above 21 deg.C, (b) 10-30% of benzyl alcohol, (c) 10-65% of an aliphatic ester of formula R-COOR' (I), and (d) 1-15% of an emulsifier. R = H or 1-4C alkyl; R' - 1-8C alkyl. The compsn. pref. contains 20-50% of turpentine oil, or 20-45% of acetone or a ketone of formula R"-CO-R"'.; acetone is added only in absence of turpentine oil. R", R"' = Me or Et. In (I), R = Et; R' = Et, (iso)propyl, or n-, tert.-or iso-butyl. USE/ADVANTAGE - The compsn. is used to remove oily or fatty residues, coatings, lubricants or their residues and breakdown prods., esp. from solid surfaces (claimed). It also removes dyes and tar, and can be used to clean Au, Ag and Pt. The liq. is non-toxic and has no effect on health or the environment.