Process for preparing tetraphenolic compounds
US5191128A · kind A · utility
11Cited by
6References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 12, 1992 |
| Grant date | Mar 2, 1993 |
| Priority date | — |
| Expiry date | Mar 12, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C37/20
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Tetraphenolic compounds such as the tetraphenol of ethane and the tetraphenol of xylene can be prepared in a ketone/alcohol solvent medium using a cation exchange resin catalyst.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.