FR856585A - Azo dyes - Google Patents

Azo dyes

Info

Publication number
FR856585A
FR856585A FR856585DA FR856585A FR 856585 A FR856585 A FR 856585A FR 856585D A FR856585D A FR 856585DA FR 856585 A FR856585 A FR 856585A
Authority
FR
France
Prior art keywords
azo dyes
azo
dyes
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Application granted granted Critical
Publication of FR856585A publication Critical patent/FR856585A/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
    • C09B35/00—Disazo and polyazo dyes of the type A<-D->B prepared by diazotising and coupling
    • C09B35/50—Tetrazo dyes
    • C09B35/56—Tetrazo dyes of the type

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
FR856585D 1938-06-04 1939-06-05 Azo dyes Expired FR856585A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US856585XA 1938-06-04 1938-06-04

Publications (1)

Publication Number Publication Date
FR856585A true FR856585A (en) 1940-06-18

Family

ID=22193103

Family Applications (1)

Application Number Title Priority Date Filing Date
FR856585D Expired FR856585A (en) 1938-06-04 1939-06-05 Azo dyes

Country Status (1)

Country Link
FR (1) FR856585A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2536406A1 (en) * 1982-11-22 1984-05-25 Sandoz Sa NOVEL AZOIC COMPOUNDS EXEMPT FROM SULFO GROUPS, THEIR PREPARATION AND THEIR USE AS COLORANTS
EP0169808A2 (en) * 1984-07-24 1986-01-29 Ilford Ag UV-absorber compounds, method for their preparation and their use as image dyes in photographic materials for the silver dye-bleaching process

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2536406A1 (en) * 1982-11-22 1984-05-25 Sandoz Sa NOVEL AZOIC COMPOUNDS EXEMPT FROM SULFO GROUPS, THEIR PREPARATION AND THEIR USE AS COLORANTS
EP0169808A2 (en) * 1984-07-24 1986-01-29 Ilford Ag UV-absorber compounds, method for their preparation and their use as image dyes in photographic materials for the silver dye-bleaching process
EP0169808A3 (en) * 1984-07-24 1988-12-21 Ciba-Geigy Ag Uv-absorber compounds, method for their preparation and their use as image dyes in photographic materials for the silver dye-bleaching process

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