Rhone-poulenc Industries

Rhone-progil

Chloe Chimie

Jean-Pierre Remond

Jean-Claude Vitat

Jean-Robert Thebault

Roland Aguilera

Surface treating compositions, e.g., for the removal of water therefrom, are comprised of (1) a solvent comprising at least 50% by weight of 1,1,2-trichloro-1,2,2-trifluoroethane and (2) a water-solubilizing additive therefor, said additive (2) comprising (i) at least one phosphoric acid ester of the general formula: ##STR1## in which Y is a radical of the formula --O--T--OC.sub.m H.sub.2m).sub.r OH, and Z is a radical Y or a hydroxyl group, (ii) at least one ester of the above formula (I), in which at least one phosphoric acid moiety has been neutralized with at least one amine salt of the general formula: ##STR2## and (iii) at least one carboxylic acid of the general formula:

Fluorochlorohydrocarbon/phosphoric acid ester/carboxylic acid drying

A composition for drying surfaces comprising 90 to 99.95% by weight of an organic solvent at least 50% of which is 1,1,2-trichloro-1,2,2-trifluoroethane, 0.04 to 8% by weight of a hydrophobic substantially water insoluble surface active agent and 0.01 to 2% by weight of an organic acid.

Drying compositions

A homogeneous liquid composition for use in the treatment of surfaces to remove water and other materials in which the composition is formulated of 90 to 99.95% by weight of a solvent, at least 50% by weight of which is trichloro-1,1,2-trifluoro-1,2,2-ethane and 0.05% to 10% by weight of one or more diamides having the general formula ##EQU1## in which R is a saturated or unsaturated aliphatic hydrocarbon having 1 to 25 carbon atoms, R.sup.1 is an aliphatic hydrocarbon group having 10 to 30 carbon atoms and at least one ethylenic double bond, and n is a number from 1 to 9.

Growing community of inventors

Massy-Villaine, France

Jean-Pierre Remond