Solid acid catalyst and method for preparing and using the same
US8293137B2 · kind B2 · utility
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2References
12Claims
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Key dates
| Filing date | Nov 10, 2010 |
| Grant date | Oct 23, 2012 |
| Priority date | — |
| Expiry date | Nov 10, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/584
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A solid acid catalyst having a strong acid cation exchange resin having a cross-linking network structure and free aromatic sulfonic acids adsorbed in the network. The solid acid catalyst is prepared by treating a strong acid cation exchange resin with aromatic sulfonic acids in a solution. The catalyst is useful for synthesizing rubber antioxidant RD and other strong-acid catalyzed reactions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.