Squaraine based dyes and process for preparation thereof
The present invention relates to novel squaraine based dyes. More particularly, the present invention relates to squaraine based dyes with terminal aminoanthracene or acridinium units with absorption maximum above 700 nm of the formula 1 (1a, 1b, 1c) The present invention relates to squaraine dye co...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | The present invention relates to novel squaraine based dyes. More particularly, the present invention relates to squaraine based dyes with terminal aminoanthracene or acridinium units with absorption maximum above 700 nm of the formula 1 (1a, 1b, 1c)
The present invention relates to squaraine dye containing terminal aminoanthracene or acridine groups and to a process for preparation thereof. |
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