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. 11, 2003
Filed:
Jan. 08, 2002
Applicant:
Inventors:
Assignee:
Cognis Deutschland GmbH, Duesseldorf, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 5/100 ; C07C 6/724 ; C07C 4/311 ; C07C 4/318 ; C07C 4/320 ;
U.S. Cl.
CPC ...
C07C 5/100 ; C07C 6/724 ; C07C 4/311 ; C07C 4/318 ; C07C 4/320 ;
Abstract
Processes for preparing alkoxylated nonionic surfactants are disclosed, wherein a compound having at least one active hydrogen atom, a carboxylic acid ester or mixtures thereof are reacted with an alkylene oxide in the presence of a hydrotalcite catalyst to form a reaction product mixture; and the reaction product mixture is combined with an acid in at least an equimolar amount based on the amount of the catalyst present.