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, 2016
Filed:
Dec. 24, 2005
Applicants:
Niels Schulte, Kelkheim, DE;
Esther Breuning, Niedernhausen, DE;
Hubert Spreitzer, Viernheim, DE;
Inventors:
Assignee:
Merck Patent GmbH, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 75/00 (2006.01); B01J 19/00 (2006.01); C08G 61/00 (2006.01);
U.S. Cl.
CPC ...
B01J 19/0093 (2013.01); C08G 61/00 (2013.01); B01J 2219/00862 (2013.01); B01J 2219/00867 (2013.01); B01J 2219/00869 (2013.01); B01J 2219/00984 (2013.01);
Abstract
The present invention relates to a process for preparing polymers by polycondensation catalyzed by transition metals. These polymers are of great importance in, in particular, the fast-growing field of organic semiconductors. The polymers obtained by the process of the invention can be prepared with greater reproducibility and in higher purity than polymers obtained according to the prior art.