GB669174A - Improvements in the manufacture of polymethin dyes - Google Patents

Improvements in the manufacture of polymethin dyes

Info

Publication number
GB669174A
GB669174A GB885/50A GB88550A GB669174A GB 669174 A GB669174 A GB 669174A GB 885/50 A GB885/50 A GB 885/50A GB 88550 A GB88550 A GB 88550A GB 669174 A GB669174 A GB 669174A
Authority
GB
United Kingdom
Prior art keywords
dimethyl
iodide
prepared
pyridine
methiodide
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
GB885/50A
Other languages
English (en)
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.)
Kodak Ltd
Original Assignee
Kodak 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.)
Filing date
Publication date
Application filed by Kodak Ltd filed Critical Kodak Ltd
Publication of GB669174A publication Critical patent/GB669174A/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
    • C09B23/00—Methine or polymethine dyes, e.g. cyanine dyes
    • C09B23/12—Methine or polymethine dyes, e.g. cyanine dyes the polymethine chain being branched "branched" means that the substituent on the polymethine chain forms a new conjugated system, e.g. most trinuclear cyanine dyes
    • 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
    • C09B23/02—Methine or polymethine dyes, e.g. cyanine dyes the polymethine chain containing an odd number of >CH- or >C[alkyl]- groups

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Thiazole And Isothizaole Compounds (AREA)
  • Plural Heterocyclic Compounds (AREA)
GB885/50A 1949-01-13 1950-01-13 Improvements in the manufacture of polymethin dyes Expired GB669174A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US70796A US2537880A (en) 1949-01-13 1949-01-13 Process for preparing polymethine dyes

Publications (1)

Publication Number Publication Date
GB669174A true GB669174A (en) 1952-03-26

Family

ID=22097435

Family Applications (1)

Application Number Title Priority Date Filing Date
GB885/50A Expired GB669174A (en) 1949-01-13 1950-01-13 Improvements in the manufacture of polymethin dyes

Country Status (4)

Country Link
US (1) US2537880A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
BE (1) BE493220A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR1059754A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB669174A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE526524A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1953-02-27
US2734900A (en) * 1953-12-28 1956-02-14 Chxgh
DE1916845A1 (de) * 1969-04-02 1970-11-05 Agfa Gevaert Ag Spektral sensibilisiertes lichtempfindliches Material
US4105451A (en) * 1976-12-22 1978-08-08 Eastman Kodak Company Photothermographic material, composition and process

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1910478A (en) * 1928-12-24 1933-05-23 Gen Aniline Works Inc Polymethine dyestuff
DE641799C (de) * 1928-12-24 1937-02-13 I G Farbenindustrie Akt Ges Verfahren zur Darstellung von Polymethinfarbstoffen
US2191810A (en) * 1935-06-28 1940-02-27 Gevaert Photo Prod Nv Method of sensitizing photographic silver halide emulsions

Also Published As

Publication number Publication date
BE493220A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
US2537880A (en) 1951-01-09
FR1059754A (fr) 1954-03-29

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