Patent · US Active

Conversion of terephthalic acid to Di-n-butyl terephthalate

US7741509B2 · kind B2 · utility

1Cited by

21References

3Claims

0Family size

Assignee

Eastman Chemical Company · US

Inventors

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

Key dates

Filing date	Apr 3, 2007
Grant date	Jun 22, 2010
Priority date	—
Expiry date	Jun 22, 2028

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C67/08
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

Disclosed is a process for the preparation of di-n-butyl terephthalate by the esterification of terephthalic acid with n-butanol in the presence of a strong acid while employing a fractionating column.

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