CH226451A - Process for the preparation of a blue trisazo dye. - Google Patents
Process for the preparation of a blue trisazo dye.Info
- Publication number
- CH226451A CH226451A CH226451DA CH226451A CH 226451 A CH226451 A CH 226451A CH 226451D A CH226451D A CH 226451DA CH 226451 A CH226451 A CH 226451A
- Authority
- CH
- Switzerland
- Prior art keywords
- preparation
- trisazo dye
- blue
- blue trisazo
- dye
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
- H03G3/22—Automatic control in amplifiers having discharge tubes
- H03G3/26—Muting amplifier when no signal is present or when only weak signals are present, or caused by the presence of noise, e.g. squelch systems
- H03G3/28—Muting amplifier when no signal is present or when only weak signals are present, or caused by the presence of noise, e.g. squelch systems in frequency-modulation receivers ; in angle-modulation receivers
-
- 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
- C09B31/00—Disazo and polyazo dyes of the type A->B->C, A->B->C->D, or the like, prepared by diazotising and coupling
- C09B31/16—Trisazo dyes
- C09B31/22—Trisazo dyes from a coupling component "D" containing directive hydroxyl and amino groups
-
- 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
- C09B49/00—Sulfur dyes
- C09B49/12—Sulfur dyes from other compounds, e.g. other heterocyclic compounds
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C3/00—Stoves or ranges for gaseous fuels
- F24C3/12—Arrangement or mounting of control or safety devices
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
- H01J5/48—Means forming part of the tube or lamp for the purpose of supporting it
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE300441X | 1941-04-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH226451A true CH226451A (en) | 1943-04-15 |
Family
ID=6093930
Family Applications (6)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH226451D CH226451A (en) | 1941-04-30 | 1942-03-13 | Process for the preparation of a blue trisazo dye. |
CH226453D CH226453A (en) | 1941-04-30 | 1942-03-21 | Process for the production of a sulfur dye. |
CH226889D CH226889A (en) | 1941-04-30 | 1942-03-30 | Tap line for stoves, stoves and the like. |
CH226484D CH226484A (en) | 1941-04-30 | 1942-04-08 | Process in which the amplitudes of existing magnetic sound recordings are changed. |
CH227275D CH227275A (en) | 1941-04-30 | 1942-04-13 | Receiver for frequency-modulated oscillations with amplitude limiter. |
CH226336D CH226336A (en) | 1941-04-30 | 1942-04-28 | Pressed glass base for an electron tube and associated socket. |
Family Applications After (5)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH226453D CH226453A (en) | 1941-04-30 | 1942-03-21 | Process for the production of a sulfur dye. |
CH226889D CH226889A (en) | 1941-04-30 | 1942-03-30 | Tap line for stoves, stoves and the like. |
CH226484D CH226484A (en) | 1941-04-30 | 1942-04-08 | Process in which the amplitudes of existing magnetic sound recordings are changed. |
CH227275D CH227275A (en) | 1941-04-30 | 1942-04-13 | Receiver for frequency-modulated oscillations with amplitude limiter. |
CH226336D CH226336A (en) | 1941-04-30 | 1942-04-28 | Pressed glass base for an electron tube and associated socket. |
Country Status (3)
Country | Link |
---|---|
BE (1) | BE444076A (en) |
CH (6) | CH226451A (en) |
FR (1) | FR881552A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE860966C (en) * | 1946-07-17 | 1952-12-29 | Philips Nv | Circuit for silent tuning in a receiver for frequency-modulated oscillations |
-
0
- BE BE444076D patent/BE444076A/xx unknown
-
1942
- 1942-03-13 CH CH226451D patent/CH226451A/en unknown
- 1942-03-21 CH CH226453D patent/CH226453A/en unknown
- 1942-03-30 CH CH226889D patent/CH226889A/en unknown
- 1942-04-08 CH CH226484D patent/CH226484A/en unknown
- 1942-04-13 CH CH227275D patent/CH227275A/en unknown
- 1942-04-27 FR FR881552D patent/FR881552A/en not_active Expired
- 1942-04-28 CH CH226336D patent/CH226336A/en unknown
Also Published As
Publication number | Publication date |
---|---|
BE444076A (en) | |
CH227275A (en) | 1943-05-31 |
CH226484A (en) | 1943-04-15 |
CH226889A (en) | 1943-05-15 |
CH226336A (en) | 1943-03-31 |
CH226453A (en) | 1943-04-15 |
FR881552A (en) | 1943-04-29 |
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