FR865131A - Perfectionnements aux colorants sensibilisateurs pour émulsions photographiques - Google Patents

Perfectionnements aux colorants sensibilisateurs pour émulsions photographiques

Info

Publication number: FR865131A
Authority: FR; France
Prior art keywords: sensitizing dyes; photographic emulsions; photographic; emulsions; sensitizing
Prior art date: 1939-05-05
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

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.)

Ilford Imaging UK Ltd

Original Assignee

Ilford Ltd

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.)

1939-05-05

Filing date

1940-04-24

Publication date

1941-05-14

1940-04-24 Application filed by Ilford Ltd filed Critical Ilford Ltd

1941-05-14 Application granted granted Critical

1941-05-14 Publication of FR865131A publication Critical patent/FR865131A/fr

Status Expired legal-status Critical Current

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
- C09B23/00—Methine or polymethine dyes, e.g. cyanine dyes
- C09B23/10—The polymethine chain containing an even number of >CH- groups

Landscapes

Chemical & Material Sciences (AREA)
Organic Chemistry (AREA)
Plural Heterocyclic Compounds (AREA)
Thiazole And Isothizaole Compounds (AREA)

FR865131D 1939-05-05 1940-04-24 Perfectionnements aux colorants sensibilisateurs pour émulsions photographiques Expired FR865131A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
GB13508/39A GB528803A (en)	1939-05-05	1939-05-05	Improvements in or relating to photographic sensitizing dyestuffs

Publications (1)

Publication Number	Publication Date
FR865131A true FR865131A (fr)	1941-05-14

Family

ID=10024245

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR865131D Expired FR865131A (fr)	1939-05-05	1940-04-24	Perfectionnements aux colorants sensibilisateurs pour émulsions photographiques

Country Status (3)

Country	Link
US (1)	US2319547A (fr)
FR (1)	FR865131A (fr)
GB (1)	GB528803A (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
NL118623B (fr) *	1943-08-21
US2769001A (en) *	1945-02-24	1956-10-30	Gehauf Bernard	Dyestuffs
US2573555A (en) *	1948-10-02	1951-10-30	Ilford Ltd	Method for making methine dyestuffs
NL75610C (fr) *	1950-03-20
DE19822199C2 (de) *	1998-05-16	2003-02-13	Wella Ag	Mono- oder Polymethinfarbstoffe enthaltende nicht-oxidative Haarfärbemittel und Verfahren zur temporären Haarfärbung

1939
- 1939-05-05 GB GB13508/39A patent/GB528803A/en not_active Expired
1940
- 1940-04-24 FR FR865131D patent/FR865131A/fr not_active Expired
- 1940-04-25 US US331674A patent/US2319547A/en not_active Expired - Lifetime

Also Published As

Publication number	Publication date
US2319547A (en)	1943-05-18
GB528803A (en)	1940-11-07

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