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:
Jul. 13, 1982
Filed:
Jun. 15, 1981
Edgar Muschelknautz, Leverkusen, DE;
Roland Vogelsgesang, Leverkusen, DE;
Helmut Ohse, Dormagen, DE;
Hans Westermann, Marl, DE;
Eckhard Moller, Marl, DE;
Klaus Hachmann, Marl, DE;
Wilhelm Schiemann, Marl, DE;
Bernt Kesper, Dorsten, DE;
Bayer Aktiengesellschaft, Leverkusen, DE;
Abstract
In the production of polyesters by introduction of precondensates on to a first plate of a column reactor product quality is improved and operating time is increased in that spontaneous flash evaporation of the precondensate takes place in a so-called entry box, before the introduction on to the first plate of the column reactor, and in that separation of the liquid component from the gaseous component is subsequently carried out by centrifugal force in a so-called annular chamber.