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. 21, 2007
Filed:
Mar. 13, 2006
Eike Schulz Van Endert, Berlin, DE;
Rainer Hagen, Berlin, DE;
Thomas Hille, Berlin, DE;
Christian Atlas, Berlin, DE;
Ulrich Thiele, Bruchkobel, DE;
Eike Schulz Van Endert, Berlin, DE;
Rainer Hagen, Berlin, DE;
Thomas Hille, Berlin, DE;
Christian Atlas, Berlin, DE;
Ulrich Thiele, Bruchkobel, DE;
Uhde Inventa-Fischer GmbH, Berlin, DE;
Abstract
The invention relates to a method for producing high-molecular weight polyesters, such as e.g. polyethylene terephthalate (PET), polybutylene terephthalate (PBT), polynaphthalene terephthalate (PEN), polytrimethylene terephthalate (PTT) and/or polyesters of other dicarboxylic acids and diols including copolymers thereof. The invention relates likewise to a device for implementing this method. The latter concerns a single-stage tower reactor with which a method, comprising only two reactors, is made available for the total process.