Reaction of carbon black with diazonium salts, resultant carbon black products and their uses
US6042643A · kind A · utility
120Cited by
134References
135Claims
0Family size
Assignee
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Key dates
| Filing date | Jun 26, 1998 |
| Grant date | Mar 28, 2000 |
| Priority date | — |
| Expiry date | Jun 26, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S524/925
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Processes for preparing a carbon black product having an organic group attached to the carbon black. In one process at least one diazonium salt reacts with a carbon black in the absence of an externally applied electric current sufficient to reduce the diazonium salt. In another process at least one diazonium salt reacts with a carbon black in a protic reaction medium. Carbon black products which may be prepared according to process of the invention are described as well as uses of such carbon black products in plastic compositions, rubber compositions, paper compositions, and textile compositions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.