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:
Nov. 19, 2002
Filed:
May. 08, 1995
Helmut Bahrmann, Hamminkeln, DE;
Wilfried Fenske, Hamminkeln, DE;
Wolfgang Greb, Dinslaken, DE;
Peter Heymanns, Essen, DE;
Peter Lappe, Dinslaken, DE;
Thomas Müller, Dinslaken, DE;
Jürgen Szameitat, Wesel, DE;
Ernst Wiebus, Oberhausen, DE;
Hoechst Aktiengesellschaft, , DE;
Abstract
Mixtures of isomeric nonanols and decanols are obtained by joint aldol condensation of n-butanal and pentanals, and up to 1% by weight of 3-methylbutanal, hydrogenation of the aldol condensation product to the corresponding saturated alcohols, and separation from the reaction mixture of the components boiling at temperatures lower than those of the nonanols and decanols. The pentanals are mixtures of 60 to 90% by weight of n-pentanal and 10 to 40% by weight of 2-methylbutanal. The alcohol mixture is especially suitable for preparing ester plasticizers.