Purification of bisphenol-A
US4156098A · kind A · utility
8Cited by
4References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 30, 1978 |
| Grant date | May 22, 1979 |
| Priority date | — |
| Expiry date | May 30, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C37/00
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Impure bisphenol-A can be purified by treatment of a phenol adduct of the latter with methylene chloride and then recovering the purified bisphenol-A.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.