Patent · US Active

Condensation and washing device, polymerisation device and method for cleaning process steam during the production of polylactide

US8430948B2 · kind B2 · utility

3Cited by

5References

20Claims

0Family size

Assignee

UHDE INVENTA-FISCHER GMBH · DE

Inventors

Rainer Hagen · Leverkusen, DE
Udo Muhlbauer · Berlin, DE

Key dates

Filing date	Aug 5, 2008
Grant date	Apr 30, 2013
Priority date	—
Expiry date	Sep 17, 2029

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08G63/08
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

The present invention relates to a condensation and washing device with which in particular the process vapors which occur during the production of polylactide can be processed and cleaned. Furthermore, the present invention relates to a polymerization device for the production of polylactide and also to a method for processing process vapors which occur during the production of polylactide; possibilities for use of both the condensation and washing devices and of the method are likewise mentioned.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.