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:
Aug. 13, 1991
Filed:
Mar. 16, 1989
Applicant:
Inventors:
Rainer Kupfer, Kastl, 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 ...
B01D / ; C08F / ; C08L / ;
U.S. Cl.
CPC ...
252331 ; 252358 ; 210708 ; 525507 ; 568609 ;
Abstract
A process for the separation of crude oil emulsions of the water-in-oil type In the novel process addition products made from certain ethylene oxide/propylene oxide block polymers and certain polyglycidyl ethers of phenol/formaldehyde condensation products are added to the crude oil emulsions.