Process for the synthesis of bisphenol
US7112702B2 · kind B2 · utility
13Cited by
126References
80Claims
0Family size
Assignee
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Key dates
| Filing date | Dec 12, 2002 |
| Grant date | Sep 26, 2006 |
| Priority date | — |
| Expiry date | Mar 29, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/582
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A commercial scale continuous process for the production of a bisphenol comprising reacting a phenol and a ketone in the presence of a modified ion exchange resin catalyst, wherein said modified ion exchange resin comprises a crosslinked gellular acid functionalized polystyrene resin modified by neutralization of with a mercapto promoter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.