Patent · US Expired

Tower reactor and use thereof for the continuous production of high molecular weight polyesters

US7608225B2 · kind B2 · utility

4Cited by

8References

31Claims

0Family size

Assignee

UHDE INVENTA-FISCHER GMBH · DE

Inventors

Eike Schulz Van Endert · Berlin, DE
Christian Atlas · Berlin, DE

Key dates

Filing date	Oct 29, 2004
Grant date	Oct 27, 2009
Priority date	—
Expiry date	Apr 24, 2025

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01J2219/00247
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

The invention relates to a tower reactor and the use thereof 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. It thereby concerns a single-stage tower reactor.

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