Isomerization of by-products of bis-phenol synthesis
US4822923A · kind A · utility
36Cited by
5References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 19, 1987 |
| Grant date | Apr 18, 1989 |
| Priority date | — |
| Expiry date | Oct 19, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C37/00
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
By-products of bis-phenol synthesis are isomerized in the presence of an acid catalyst and a free mercaptan co-catalyst.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.