Surfactant/solvent systems

Details Surfactant/solvent systems Surfactant/solvent systems

2004-10-28

2009-11-10

Del Cotto, Gregory R (Department: 1796)

Drug, bio-affecting and body treating compositions

Preparations characterized by special physical form

Biocides; animal or insect repellents or attractants

C510S421000, C510S436000, C510S467000, C510S493000, C510S499000, C510S500000, C510S501000, C510S502000, C510S505000, C510S506000

Reexamination Certificate

active

07615232

ABSTRACT:
The present invention relates to surfactant/solvent systems for liquid formulations comprisingα) one or more nonaromatic-based surfactants,β) as solvent, one or more triester(s) of phosphoric acid with alcohols, preferably from the group consisting of1) monohydric alkanols having 5 to 22 carbon atoms, for example with n-, i- or neo-pentanol, n-hexanol, n-octanol, 2-ethylhexanol,2) diols or polyols, such as ethylene glycol, propylene glycol or glycerol,3) aryl, alkylaryl, poly(alkyl)aryl and poly(arylalkyl)aryl alcohols, for example with phenol and/or cresol, octylphenol, nonylphenol, triisobutylphenol, tristyrylphenol,4) alkoxylated alcohols obtained by reacting the alcohols mentioned above under 1), 2) or 3) with alkylene oxides, preferably (C1-C4)alkylene oxides, and5) alkoxylated alcohols obtained by reacting monohydric alkanols having 1 to 4 carbon atoms and alkylene oxides.The surfactant/solvent system according to the invention is suitable for the preparation of liquid active substance formulations.

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