GB506423A - Sensitizing dyes for silver halide emulsions - Google Patents

Sensitizing dyes for silver halide emulsions

Info

Publication number
GB506423A
GB506423A GB707937A GB707937A GB506423A GB 506423 A GB506423 A GB 506423A GB 707937 A GB707937 A GB 707937A GB 707937 A GB707937 A GB 707937A GB 506423 A GB506423 A GB 506423A
Authority
GB
United Kingdom
Prior art keywords
gins
carbethoxy
condensing
substituted
methyl
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
GB707937A
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.)
OTTO PERUTZ TROCKENPLATTENFABR
Original Assignee
OTTO PERUTZ TROCKENPLATTENFABR
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 OTTO PERUTZ TROCKENPLATTENFABR filed Critical OTTO PERUTZ TROCKENPLATTENFABR
Priority to GB707937A priority Critical patent/GB506423A/en
Publication of GB506423A publication Critical patent/GB506423A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/06—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with non-macromolecular additives
    • G03C1/08—Sensitivity-increasing substances
    • G03C1/10—Organic substances
    • G03C1/12—Methine and polymethine dyes
    • G03C1/14—Methine and polymethine dyes with an odd number of CH groups
    • G03C1/16—Methine and polymethine dyes with an odd number of CH groups with one CH group

Abstract

506,423. Sensitizing dyes. SEABROOK, H. (Perutz Trockenplattenfabrik, MunchÚn, Ges., O.) Dec. 29, 1937, No. 7079. [A Specification was laid open to inspection under Sect. 91 of the Acts, Sept. 14,1937.] Drawings to Specification. [Class 2 (iii)] [Also in Group XX] A sensitizing dyestuff is produced by condensing a substituted 4 : carbethoxy-2: methylthiazole quaternary salt with a substituted or unsubstituted 2-iodoquinoline quaternary salt. The dyes have the general formula In an example, 3.3 gins. 2: methyl-4 : carbethoxy-5 @ methyl-thiazol methiodide, 4.6 gms. 2-iodo-6 : ethoxy-quinolin ethiodide and 46 gins. of sodium hydroxide in 100 c.cs. alcohol are heated in a water bath for half an hour. The mixture is poured into water. The Specification as open to inspection under Sect. 91 comprises also the preparation of by condensing N : 2 : 5-trimethyl-4 : carhethoxy-thiazolium iodide with pyridine and orthoformic acid ester. This subject-matter does not appear in the Specification as accepted.
GB707937A 1937-12-29 1937-12-29 Sensitizing dyes for silver halide emulsions Expired GB506423A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB707937A GB506423A (en) 1937-12-29 1937-12-29 Sensitizing dyes for silver halide emulsions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB707937A GB506423A (en) 1937-12-29 1937-12-29 Sensitizing dyes for silver halide emulsions

Publications (1)

Publication Number Publication Date
GB506423A true GB506423A (en) 1939-05-30

Family

ID=9826211

Family Applications (1)

Application Number Title Priority Date Filing Date
GB707937A Expired GB506423A (en) 1937-12-29 1937-12-29 Sensitizing dyes for silver halide emulsions

Country Status (1)

Country Link
GB (1) GB506423A (en)

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