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:
Feb. 28, 2012
Filed:
Mar. 22, 2006
Michael Streng, Maintal, DE;
Clifford Schaeferskuepper, Saalfeld, DE;
Stephan Biller, Gruendau, DE;
Andreas Hilpert, Gelnhausen, DE;
Michael Streng, Maintal, DE;
Clifford Schaeferskuepper, Saalfeld, DE;
Stephan Biller, Gruendau, DE;
Andreas Hilpert, Gelnhausen, DE;
EPC Industrial Engineering GmbH, Alzenau, DE;
Abstract
A modular device for the continuous degas sing of reaction products, such as of a carboxylic acid or a polycarboxylic acid with a multi-functional alcohol suitable for application in the production of precondensates (or also prepolymers), has a heated enclosure in which a plurality of modules are stacked one above the other, each said module having a base. There is a vapor inlet to the uppermost module and a discharge port at the lower most module with at least one module intermediate the uppermost and lowest modules to provide space for expansion of the vapor. The base of each module preferably is concave and there are conduits that provide flow communication between the modules.