Process of manufacturing diaryl esters of dicarboxylic acids
US4482733A · kind A · utility
6Cited by
5References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 24, 1982 |
| Grant date | Nov 13, 1984 |
| Priority date | — |
| Expiry date | Sep 24, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S203/06
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
An improved process for preparing diaryl esters of dicarboxylic acids is disclosed, in which the esterification reaction is optimized by gradually increasing the temperature at which the reaction is being conducted according to a predetermined pattern. The temperature increase should be a function of the degree of esterification. The diaryl esters so prepared are useful in making linear polyesters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.