Patent · US Expired

Method for producing highly functional, hyper branched polyester by means of enzymatic esterification

US7081509B2 · kind B2 · utility

30Cited by

5References

7Claims

0Family size

Assignee

BASF SE

Inventors

Eva Wagner · Bad Dürkheim, DE
Bernd Bruchmann · Ludwigshafen, DE
Dietmar Haering · Edingen-Neckarhausen, DE
Peter Keller · Bruchmühlbach-Miesau, DE
Thomas Pouhe · Ludwigshafen, DE

Key dates

Filing date	Dec 18, 2002
Grant date	Jul 25, 2006
Priority date	—
Expiry date	Feb 9, 2023

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/2848
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The present invention relates to a process for preparing highly functional hyperbranched polyesters which comprises reacting a reaction solution comprising solvent and

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