Method and catalyst for making bisphenol
US4584416A · kind A · utility
37Cited by
5References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 14, 1983 |
| Grant date | Apr 22, 1986 |
| Priority date | — |
| Expiry date | Nov 14, 2003 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2231/347
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A sulfonated aromatic organic polymer, such as sulfonated polystyrene ion-exchange resin is provided having ionically bound N-alkylaminoorganomercaptan groups. The ion-exchange resin can be used to effect phenol-ketone condensation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.