Secondary C 10 -C 18 surfactant alcohols

Details Secondary C 10 -C 18 surfactant alcohols Secondary C 10 -C 18 surfactant alcohols

2006-07-11

2006-07-11

Nazario-Gonzalez, Porfirio (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

C568S014000, C568S028000

Reexamination Certificate

active

07074972

ABSTRACT:
The invention relates to secondary C10to C18surfactant alcohols of the general formula (I), wherein R represents methyl or ethyl and R′ represents a linear or branched alkyl group with 6–13 C atoms, excepting 5-ethyl-2-nonanol and 6-ethyl-3-decanol, in addition to fatty alcohol alkoxylates, alkyl phosphates, alkyl sulphates, alkyl ether phosphates and alkyl ether sulphates. The secondary C10to C18surfactant alcohols can be produced by a simple aldol condensation of linear or branched saturated or unsaturated C7–C14aldehyde excepting 2-ethyl hexanal, with acetone or methyl ethyl ketone and the subsequent hydrogenation of the condensation product. In the preferred method, the aldol condensation is heterogenically catalyzed under hydrogenation conditions and the saturated ketone that has been formed is subsequently hydrogenated

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