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:
Mar. 29, 1988
Filed:
Jul. 23, 1986
Applicant:
Inventors:
Manfred Hofinger, Burgkirchen, DE;
Willibald Bose, Burgkirchen, DE;
Martin Hille, Liederbach, DE;
Roland Bohm, Kelkheim, DE;
Friedrich Staiss, Wiesbaden, DE;
Assignee:
Hoechst Aktiengesellschaft, Frankfurt am Main, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G07C / ; B01D / ;
U.S. Cl.
CPC ...
560196 ; 560182 ; 260404 ; 252341 ; 252358 ;
Abstract
Oxalkylated polyester-amines which are prepared by esterifying, with polycondensation, an oxalkylated primary fatty amine with a diol and with a dicarboxylic acid, are described. These polyester-amines are used as demulsifiers for breaking crude oil emulsions.