DE132477C - - Google Patents
Info
- Publication number
- DE132477C DE132477C DENDAT132477D DE132477DA DE132477C DE 132477 C DE132477 C DE 132477C DE NDAT132477 D DENDAT132477 D DE NDAT132477D DE 132477D A DE132477D A DE 132477DA DE 132477 C DE132477 C DE 132477C
- Authority
- DE
- Germany
- Prior art keywords
- homologues
- indigo
- melt
- phenylhydantoin
- indoxyl
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 229940097275 Indigo Drugs 0.000 claims 2
- 241001062009 Indigofera Species 0.000 claims 2
- 235000000177 Indigofera tinctoria Nutrition 0.000 claims 2
- 239000000155 melt Substances 0.000 claims 2
- YEQRASMGLPZYDE-UHFFFAOYSA-N Indoxyl Chemical group C1=CC=C[C]2C(O)=CN=C21 YEQRASMGLPZYDE-UHFFFAOYSA-N 0.000 claims 1
- 239000003513 alkali Substances 0.000 claims 1
- 150000001408 amides Chemical class 0.000 claims 1
- 239000003518 caustics Substances 0.000 claims 1
- 238000001816 cooling Methods 0.000 claims 1
- 239000000975 dye Substances 0.000 claims 1
- 238000000034 method Methods 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 238000002360 preparation method Methods 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B7/00—Indigoid dyes
- C09B7/02—Bis-indole indigos
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Indole Compounds (AREA)
Description
Claims (1)
- Patent-Anspruch :Verfahren zur Darstellung von Indigo und dessen Homologen, dadurch gekennzeichnet, dafs man a-Phenylhydantoin oder dessen Homologe mit Aetzalkalien oder mit Alkaliamiden oder mit Gemengen dieser Körper im Schmelzflusse erhitzt, die Schmelzproducte nach dem Erkalten in Wasser auflöst und aus den so gewonnenen Indoxyllösungen die Indigofarbstoffe in bekannter Weise abscheidet.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE132477C true DE132477C (de) |
Family
ID=400739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT132477D Active DE132477C (de) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE132477C (de) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4299502A (en) * | 1979-01-12 | 1981-11-10 | Facit Aktiebolag | Assembly for a detachable connection for a printing element in an electric office machine |
| US4324496A (en) * | 1980-04-15 | 1982-04-13 | Triumph-Adler A.G. | Type disc printer |
-
0
- DE DENDAT132477D patent/DE132477C/de active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4299502A (en) * | 1979-01-12 | 1981-11-10 | Facit Aktiebolag | Assembly for a detachable connection for a printing element in an electric office machine |
| US4324496A (en) * | 1980-04-15 | 1982-04-13 | Triumph-Adler A.G. | Type disc printer |
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