The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 11, 2006
Filed:
Jul. 16, 2001
Heiko Maas, Mannheim, DE;
Juergen Tropsch, Roemerberg, DE;
Heiko Maas, Mannheim, DE;
Juergen Tropsch, Roemerberg, DE;
BASF Aktiengesellschaft, Ludwigshafen, DE;
Abstract
The invention relates to secondary Cto Csurfactant 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 Cto Csurfactant alcohols can be produced by a simple aldol condensation of linear or branched saturated or unsaturated C–Caldehyde 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