Method for synthesizing polymeric AZO dyes
US6346361B1 · kind B1 · utility
4Cited by
6References
8Claims
0Family size
Assignee
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Key dates
| Filing date | Oct 6, 1999 |
| Grant date | Feb 12, 2002 |
| Priority date | — |
| Expiry date | Oct 6, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03F7/021
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method of coupling a diazonium salt with an organic polymer comprising, on order, the steps of: providing a polymer in one liquid phase; providing an diazonium salt in a separate liquid phase; contacting the separate phases, and thereby reacting the polymer and the diazonium salt.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.