C - Chemistry – Metallurgy – 11 – D
Patent
C - Chemistry, Metallurgy
11
D
C11D 1/62 (2006.01) C07H 15/08 (2006.01) C11D 1/65 (2006.01)
Patent
CA 2296574
The present invention relates to cationic sugar surfactants with improved biodegradability that can be used as hydrotropes for surfactants, especially for nonionic alkylene oxide adducts in alkaline solutions, and as cleaners for hard surfaces. The cationic sugar surfactants contain at least one hydrocarbon group with 6-24 carbon atoms and at least one quaternary ammonium group where at least one substituent is an alkyleneoxy containing group which is connected to a saccharide residue by a glycosidic bond. They are obtained from ethoxylated quaternary ammonium compounds and reducing saccharides or alkyl glycosides.
L'invention concerne des tensio-actifs cationiques de sucre de biodégradabilité améliorée pouvant être utilisés comme hydrotropes de tensio-actifs, notamment pour ajouter de l'oxyde d'alkylène non ionique dans des solutions alcalines, et comme nettoyants de surfaces dures. Les tensio-actifs cationiques de sucre contiennent au moins un groupe hydrocarbone ayant 6 à 24 atomes de carbone et au moins un groupe d'ammonium quaternaire, au moins un substituant étant un groupe contenant de l'alkylènoxy lié à un résidu de saccharide par une liaison glycosidique. Ils sont obtenus à partir de composés d'ammonium quaternaire éthoxylés et de saccharides réducteurs ou de glycosides d'alkyle.
Gustavsson Bodil
Skold Rolf
Akzo Nobel N.v.
Macrae & Co.
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