GB1203675A - Merocyanine dyes - Google Patents

Merocyanine dyes

Info

Publication number
GB1203675A
GB1203675A GB1991368A GB1991368A GB1203675A GB 1203675 A GB1203675 A GB 1203675A GB 1991368 A GB1991368 A GB 1991368A GB 1991368 A GB1991368 A GB 1991368A GB 1203675 A GB1203675 A GB 1203675A
Authority
GB
United Kingdom
Prior art keywords
alkyl
aralkyl
april
hydroxyethyl
benzyl
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
GB1991368A
Inventor
Geoffrey Ernest Ficken
Konrad Jerzy Bannert
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.)
Filing date
Publication date
Application filed by Ilford Ltd filed Critical Ilford Ltd
Priority to GB1991368A priority Critical patent/GB1203675A/en
Priority to FR6913008A priority patent/FR2007002A1/fr
Publication of GB1203675A publication Critical patent/GB1203675A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09BORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B23/00Methine or polymethine dyes, e.g. cyanine dyes
    • C09B23/10The polymethine chain containing an even number of >CH- groups
    • C09B23/105The polymethine chain containing an even number of >CH- groups two >CH- groups

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)

Abstract

1,203,675. Silver halide emulsions. ILFORD Ltd. April 18, 1969 [April 26, 1968], No.19913/68. Heading G2C. [Also in Divisions C2 and C4] Silver halide emulsions are sensitized with a merocyanine dye of formula: (in which R 1 is C 1-4 ) alkyl, aralkyl or aryl; R 2 is alkyl, hydroxyalkyl; alkoxyalkyl, aralkyl, carboxyaralkyl, carboxyalkyl, acyloxyalkyl or of one of the formulae: SO 2 NHR 5 ; n is 1-6; R 4 is alkyl; R 5 is alkyl or aralkyl; R 3 is H or optionally substituted alkyl or aryl; x and y are each 0-4; and x+y = 3 or 4). Specified substituents on the benzimidazole nucleus are alkyl, 2-acetoxyethyl, Br, Cl, 2-hydroxyethyl, 2-methoxyethyl, phenethyl, benzyl, and 4-sulphobutyl. Specified substituents on the oxazolidene ring are alkyl, benzyl and hydroxyethyl.
GB1991368A 1968-04-26 1968-04-26 Merocyanine dyes Expired GB1203675A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1991368A GB1203675A (en) 1968-04-26 1968-04-26 Merocyanine dyes
FR6913008A FR2007002A1 (en) 1968-04-26 1969-04-24

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1991368A GB1203675A (en) 1968-04-26 1968-04-26 Merocyanine dyes

Publications (1)

Publication Number Publication Date
GB1203675A true GB1203675A (en) 1970-09-03

Family

ID=10137235

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1991368A Expired GB1203675A (en) 1968-04-26 1968-04-26 Merocyanine dyes

Country Status (2)

Country Link
FR (1) FR2007002A1 (en)
GB (1) GB1203675A (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1460985A (en) * 1965-01-25 1966-01-07 Ferrania Spa Method of sensitizing photographic silver halide emulsions
BE691230A (en) * 1965-12-27 1967-05-16

Also Published As

Publication number Publication date
FR2007002A1 (en) 1970-01-02

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees