Surfactant compositions

It has been found that block copolymer surfactants can be stabilized by the presence of small quantities of certain metal ions and/or a polyalkyleneglycol. The metal ions afford block copolymer surfactant stability at very low concentration of metal ion and safety advantages over conventional stabil...

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Bibliographische Detailangaben
Hauptverfasser:	BARBARA O. YUAN, HAROLD JACK STEVENS
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES CHEMISTRY DYES HUMAN NECESSITIES HYGIENE MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE MEDICAL OR VETERINARY SCIENCE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS POLISHES PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
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Beschreibung
Zusammenfassung:	It has been found that block copolymer surfactants can be stabilized by the presence of small quantities of certain metal ions and/or a polyalkyleneglycol. The metal ions afford block copolymer surfactant stability at very low concentration of metal ion and safety advantages over conventional stabilizing techniques. The present invention is all the more surprising in view of the prior art which clearly indicates that metal ions would be expected to accelerate autoxidative degradation.