Process of manufacturing organosilicon products with improved quality using heterogeneous precious metal catalysts
US8497338B2 · kind B2 · utility
8Cited by
31References
36Claims
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Key dates
| Filing date | Oct 31, 2011 |
| Grant date | Jul 30, 2013 |
| Priority date | — |
| Expiry date | Oct 31, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/584
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for manufacturing an organosilicon product having a stabilized low color and no formation of black particles during storage includes (a) reacting an unsaturated compound with a silicon compound having a reactive Si—H bond under hydrosilylation conditions in a reaction zone in the presence of a heterogeneous precious metal catalyst to provide an organosilicon product having a color of less than 40 pt/co; (b) separating the heterogeneous precious metal catalyst from the organosilicon product; and (c) recovering the heterogeneous precious metal catalyst.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.