FR939702A - Disazo dyes and their manufacturing process - Google Patents

Disazo dyes and their manufacturing process

Info

Publication number
FR939702A
FR939702A FR939702DA FR939702A FR 939702 A FR939702 A FR 939702A FR 939702D A FR939702D A FR 939702DA FR 939702 A FR939702 A FR 939702A
Authority
FR
France
Prior art keywords
manufacturing process
disazo dyes
disazo
dyes
manufacturing
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.)
Expired
Application number
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sandoz AG
Original Assignee
Sandoz 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 Sandoz AG filed Critical Sandoz AG
Application granted granted Critical
Publication of FR939702A publication Critical patent/FR939702A/en
Expired legal-status Critical Current

Links

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
    • C09B43/00—Preparation of azo dyes from other azo compounds
    • C09B43/12—Preparation of azo dyes from other azo compounds by acylation of amino groups
    • C09B43/136—Preparation of azo dyes from other azo compounds by acylation of amino groups with polyfunctional acylating agents
    • C09B43/14—Preparation of azo dyes from other azo compounds by acylation of amino groups with polyfunctional acylating agents with phosgene or thiophosgene

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Coloring (AREA)
FR939702D 1946-01-14 1947-01-13 Disazo dyes and their manufacturing process Expired FR939702A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH939702X 1946-01-14

Publications (1)

Publication Number Publication Date
FR939702A true FR939702A (en) 1948-11-23

Family

ID=4549318

Family Applications (1)

Application Number Title Priority Date Filing Date
FR939702D Expired FR939702A (en) 1946-01-14 1947-01-13 Disazo dyes and their manufacturing process

Country Status (3)

Country Link
DE (1) DE909242C (en)
FR (1) FR939702A (en)
GB (1) GB620257A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE915381C (en) * 1951-05-25 1954-07-22 Ciba Geigy Process for the preparation of unsymmetrical urea derivatives of monoazo dyes

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE446496C (en) * 1925-02-05 1927-07-02 I G Farbenindustrie Akt Ges Process for the production of azo dyes
FR924233A (en) * 1945-04-27 1947-07-30 Ciba Geigy Process for the preparation of intermediates which can be used for the preparation of azo dyes

Also Published As

Publication number Publication date
GB620257A (en) 1949-03-22
DE909242C (en) 1954-04-15

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