Anionic surfactants and washing and cleaning agents containing same
OwnerChristian Kropf, Mireia Subinya +4inventors
InventorsChristian Kropf, Mireia Subinya, Danuta Bedrunka, Regina Palkovits, Peter Hausoul, Lukas Kipshagen
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Abstract
The surfactants of the general formula (I), in which R represents hydrogen or a linear or branched alkyl, alkenyl, alkylaryl or alkenylaryl group having 5 to 25 C atoms, n represents a number from 1 to 21 and m represents a number from 0 to 20, the sum of n and m being less than 22, and X+ represents a charge-balancing cation. The surfactants can be easily incorporated into washing or cleaning agents, have outstanding practical properties and can be produced on the basis of renewable raw materials.
Claims19
An anionic surfactant of the general formula (I),
- in which R represents hydrogen or a linear or branched alkyl, alkenyl, alkylaryl or alkenylaryl group having 5 to 25 C atoms, n represents a number from 1 to 21 and m represents a number from 0 to 20, the sum of n and m being less than 22, and X+ represents a charge-balancing cation.
A method for preparing an anionic surfactant of the general formula (I),
- in which R represents hydrogen or a linear or branched alkyl, alkenyl, alkylaryl or alkenylaryl group having 5 to 25 C atoms, n represents a number from 1 to 21 and m represents a number from 0 to 20, the sum of n and m being less than 22, and X+ represents a charge-balancing cation, by reacting the 1,3-cyclopentanediol monoalcoholate with an electrophilic alkyl derivative, and subsequent sulfation with a sulfating agent and optionally neutralization by subsequent reaction with X+OH−, X+HCO−3 or X+2CO2−3, where 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.
Dependencies are inferred from the claim text.