GB497698A - Improvements in or relating to colour-formers for use in colour photography - Google Patents

Improvements in or relating to colour-formers for use in colour photography

Info

Publication number
GB497698A
GB497698A GB4952/38A GB495238A GB497698A GB 497698 A GB497698 A GB 497698A GB 4952/38 A GB4952/38 A GB 4952/38A GB 495238 A GB495238 A GB 495238A GB 497698 A GB497698 A GB 497698A
Authority
GB
United Kingdom
Prior art keywords
colour
formers
relating
photography
colour photography
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
GB4952/38A
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.)
DuPont Film Manufacturing Corp
Original Assignee
DuPont Film Manufacturing Corp
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 DuPont Film Manufacturing Corp filed Critical DuPont Film Manufacturing Corp
Publication of GB497698A publication Critical patent/GB497698A/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
    • G03C7/00—Multicolour photographic processes or agents therefor; Regeneration of such processing agents; Photosensitive materials for multicolour processes
    • G03C7/30—Colour processes using colour-coupling substances; Materials therefor; Preparing or processing such materials
    • G03C7/32—Colour coupling substances
    • G03C7/36—Couplers containing compounds with active methylene groups

Abstract

Di-acylacetamino-bisazoles are prepared by condensing the m m 1-diamino-bisazole with the ethyl or other ester of the acylacetic acid. Specification 458,664, [Group XX], is referred to.
GB4952/38A 1937-02-19 1938-02-17 Improvements in or relating to colour-formers for use in colour photography Expired GB497698A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US126735A US2140540A (en) 1937-02-19 1937-02-19 Color photography

Publications (1)

Publication Number Publication Date
GB497698A true GB497698A (en) 1938-12-23

Family

ID=22426412

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4952/38A Expired GB497698A (en) 1937-02-19 1938-02-17 Improvements in or relating to colour-formers for use in colour photography

Country Status (2)

Country Link
US (1) US2140540A (en)
GB (1) GB497698A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2736652A1 (en) * 1977-08-13 1979-02-22 Boehringer Sohn Ingelheim 2,6-BIS- (AMINOCYLAMINO) -BENZO- ANGLE CLAMP ON 1,2-D TO 5,4-D 'ANGLE CLAMP ON -BISTHIAZOLE AND 2-AMINO-6- (AMINOACYLAMINO) -BENZO- ANGLE CLAMP ON 1, 2-D TO 5,4-D 'SQUARE BRACKET TO -BISTHIAZOLE, METHOD FOR THEIR PRODUCTION AND MEDICINAL PRODUCTS
US4268591A (en) * 1978-09-07 1981-05-19 Ciba-Geigy Ag Material for color photography

Also Published As

Publication number Publication date
US2140540A (en) 1938-12-20

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