Patent · US Active

Production of terephthalic acid di-esters

US7799942B2 · kind B2 · utility

11Cited by

22References

7Claims

0Family size

Assignee

Eastman Chemical Company · US

Inventors

Vickie Haygood Osborne · Church Hill, US
Phillip Wayne Turner · Bristol, US
Steven Leroy Cook · Kingsport, US

Key dates

Filing date	Jan 30, 2007
Grant date	Sep 21, 2010
Priority date	—
Expiry date	Jan 30, 2027

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01J2531/46
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

Disclosed is a process for the preparation of a terephthalic acid di-ester by the esterification of terephthalic acid with an alcohol at elevated and normal temperature and pressure while the water of the reaction is removed from the reaction mixture via an inert gas or a column.

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