CH226453A - Process for the production of a sulfur dye. - Google Patents

Process for the production of a sulfur dye.

Info

Publication number
CH226453A
CH226453A CH226453DA CH226453A CH 226453 A CH226453 A CH 226453A CH 226453D A CH226453D A CH 226453DA CH 226453 A CH226453 A CH 226453A
Authority
CH
Switzerland
Prior art keywords
production
sulfur dye
dye
sulfur
Prior art date
Application number
Other languages
German (de)
Inventor
I. G. Farbenindustrie Aktiengesellschaft
Original Assignee
Ig Farbenindustrie Ag
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ig Farbenindustrie Ag filed Critical Ig Farbenindustrie Ag
Publication of CH226453A publication Critical patent/CH226453A/en

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)
CH226453D 1941-04-30 1942-03-21 Process for the production of a sulfur dye. CH226453A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE300441X 1941-04-30

Publications (1)

Publication Number Publication Date
CH226453A true CH226453A (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 Before (1)

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.

Family Applications After (4)

Application Number Title Priority Date Filing Date
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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
CH226451A (en) 1943-04-15
CH226484A (en) 1943-04-15
BE444076A (en)
CH226889A (en) 1943-05-15
CH226336A (en) 1943-03-31
CH227275A (en) 1943-05-31
FR881552A (en) 1943-04-29

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