Acid chloride of pyromellitic anhydride
US4460785A · kind A · utility
3Cited by
3References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 30, 1982 |
| Grant date | Jul 17, 1984 |
| Priority date | — |
| Expiry date | Sep 30, 2002 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C69/76
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Pyromellitate diester-diacid chlorides are disclosed that are useful as intermediates in the synthesis of a variety of soil and water repelling compounds. The pyromellitates of this invention characteristically contain two ester moieties wherein said ester moieties contain a fluorinated or saturated hydrocarbon alkyl moiety. The pyromellitates additionally contain two acid chloride moieties which are capable of reacting with various compounds to produce various products useful as surfactants.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.