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:
Sep. 25, 2012
Filed:
Apr. 03, 2009
Paul Birnbrich, Solingen, DE;
Hans-josef Thomas, Korschenbroich, DE;
Giorgio Sabbadini, Rho, IT;
Ulrich Nagorny, Hilden, DE;
Georg Bourscheidt, Düsseldorf, DE;
Paul Birnbrich, Solingen, DE;
Hans-Josef Thomas, Korschenbroich, DE;
Giorgio Sabbadini, Rho, IT;
Ulrich Nagorny, Hilden, DE;
Georg Bourscheidt, Düsseldorf, DE;
Cognis IP Management GmbH, Duesseldorf, DE;
Abstract
Disclosed is a process for the preparation of emulsifiers E1 which are obtained by (a) reacting a polyol with propylene oxide or a mixture of ethylene oxide and propylene oxide, to give an intermediate Z1, (b) reacting the intermediate Z1 with epichlorohydrin, forming an intermediate Z2, (c) reacting the intermediate Z2 with an adduct of ethylene oxide or a mixture of ethylene oxide and propylene oxide, with a C1-C22 monoalcohol, provided that on average at least one epoxide function of the intermediate Z2 is reacted and on average at least one epoxide function originating from the intermediate Z2 is retained. Compounds E1 are suitable as emulsifiers for preparing aqueous emulsions or dispersions of epoxy resins.