Patent · US Active

Titanium-based catalyst showing excellent activity and selectivity in polycondensation reactions

US8440782B2 · kind B2 · utility

0Cited by

5References

9Claims

0Family size

Assignee

Equipolymers GmbH · DE

Inventors

Jens-Peter Wiegner · Bodenwerder, DE
Volkmar Voerckel · Merseburg, DE
Dietmar Runkel · Merseburg, DE
Rolf Eckert · Rutesheim, DE

Key dates

Filing date	Aug 23, 2012
Grant date	May 14, 2013
Priority date	—
Expiry date	Aug 23, 2032

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01J2531/46
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Method for producing polyesters using titanium atrane catalysts is disclosed. Also disclosed are methods for making the titanium atrane catalysts. The titanium atrane catalysts are useful as esterification and/or polycondensation catalysts, have similar activity, color and byproduct formation as conventional catalyst systems, but with reduced toxicity and regulatory concerns.

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