COMPOSITIONS FOR DEWETTING OR DEGREASING SOLID SURFACES

摘要

the invention has for its object compositiondu00e9mouillage consisting essentially or degreasinga solution of surface active material in at least onehalogenated aliphatic solvent liquid at room temperatureand having a boiling point not more than 87u00b0c.characterised in that the surface active material comprises: (a)a compound of general formula:(see formula above).where p is a number ranging from 1 to 2, r is alinear or branched alkyl radical, containing from 1 to 18carbon atoms, r1 and r2 are identical or different.each represents a hydrogen atom or a radical.alkyl or hydroxyalkyle containing 1 to 4 carbon atoms.r is a linear or a perfluoroalkyl radical.branched, containing from 2 to 20 carbon atoms, and x isa group or a bivalent linkage groupthe bivalent and partially halogenated compound, (b) at least oneof the general formula:(see formula above).where p and r has the same meaning asabove, r is a linear or branched alkyl radical.containing 6 to 18 carbon atoms, and r is a radicalmethyl or ethyl at 0.5 to 0.7 mole of compound (s).of the formula (iv), and from 0.5 to 0.3 mole of compound (s)the formula (v). the invention relates to a process forthe preparation of the said composition and the use ofthe du00e9mouillage or degreasing of thethe solid surfaces.