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. 16, 2011
Filed:
Feb. 12, 2007
Applicants:
Sven Balk, Frankfurt, DE;
Gerd Loehden, Essen, DE;
Christine Miess, Kahl, DE;
Christine Troemer, Hammersbach, DE;
Monika Maerz, Alzenau, DE;
Inventors:
Sven Balk, Frankfurt, DE;
Gerd Loehden, Essen, DE;
Christine Miess, Kahl, DE;
Christine Troemer, Hammersbach, DE;
Monika Maerz, Alzenau, DE;
Assignee:
Evonik Roehm GmbH, Darmstadt, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08C 1/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to a precipitation process for removing transition metals from polymer solutions. Specifically, it comprises the removal of transition metal complexes which usually comprise copper from polymer solutions after a completed atom transfer radical polymerization.