Process for preparing purified dimethyl naphthalenedicarboxylate
US5254719A · kind A · utility
13Cited by
2References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 31, 1991 |
| Grant date | Oct 19, 1993 |
| Priority date | — |
| Expiry date | May 31, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C67/54
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for preparing purified dimethyl-2,6-naphthalenedicarboxylate by the esterification of 2,6-naphthalenedicarboxylic acid is disclosed, and which process provides for the efficient removal of residual oxidation catalyst metals from the dimethyl-2,6-naphthalenedicarboxylate and efficient removal of particulate contaminants.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.