Anionic surfactants and detergents and cleaning agents containing same
AssigneeHenkel AG & Co. KGaA
InventorsChristian Kropf, Anna Klemmer, Danuta Bedrunka, Regina Palkovits, Peter Hausoul, Lukas Kipshagen
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Abstract
The invention relates to surfactants of general formula (I) in which R represents a linear or branched alkyl, alkenyl, alkylaryl or alkenylaryl group having 5-25 C atoms and X+ represents a charge-balancing cation. The surfactants can be incorporated into detergents or cleaning agents, have excellent technological application properties and can be produced based on renewable raw materials.
Claims16
An anionic surfactant of the general formula (I),
- in which R represents a linear or branched alkyl, alkenyl, alkylaryl or alkenylaryl group having 5 to 25 C atoms and X+ represents a charge-balancing cation.
A method for preparing an anionic surfactant of the general formula (I),
- in which R represents a linear or branched alkyl, alkenyl, alkylaryl or alkenylaryl group having 5 to 25 C atoms and X+ represents a charge-balancing cation, by a) reaction of furfural with a Grignard compound R—Mg-Hal, in which R has the meaning specified above and Hal is selected from Br and I, b) hydrogenation of the furan ring to form the tetrahydrofuran ring, and c) sulfation using a sulfation agent and optionally neutralization by subsequent reaction with X+OH−, X+HCO−3 or X+2CO2−3, in which X+ represents an alkali metal cation or a grouping N+R1R2R3, in which R1, R2 and R3 represent, independently of one another, hydrogen, an alkyl group having 1 to 6 C atoms, or a hydroxyalkyl group having 2 to 6 C atoms.
A washing or cleaning agent containing an anionic surfactant of the general formula (I),
- in which R represents a linear or branched alkyl, alkenyl, alkylaryl or alkenylaryl group having 5 to 25 C atoms and X+ represents a charge-balancing cation.
Dependencies are inferred from the claim text.