Inventors:
Edward G. Tajkowski - Williamsville NY
Aaron Colbert - Livingston NJ
Assignee:
Allied Corporation - Morris Township, Morris County NJ
International Classification:
C11D 34
F26B 500
B01D 4300
Abstract:
Surfactant-modified, 1,1,2-trichloro-1,2,2-trifluoroethane solvent compositions are provided which contain small but effective amounts, i. e. , about 0. 2 to about 0. 5 weight percent of solvent soluble/water insoluble surfactant and/or surfactant demulsifiers and adjust to accommodate. Of particular significance are the compositions containing N-acylated sarcosine surfactants and demulsifiers of the group acetylenic diols, aliphatic primary alcohols of 6 to 12 carbon atoms, and alkyl phosphate triesters of 3 to 12 carbon atoms. The demulsifier containing compositions have the properties of effectively and essentially completely displacing water or aqueous solutions from many substrates and, even under conditions of severe agitation, separating them for removal by decantation from the solvent layer without the drawback of forming stable emulsions that prevent said decantation and interfere with sufficient processing of the solvent drying compositions through the drying apparatus.
