GB506385A - Improvements in the manufacture of anti-halation and filter layers - Google Patents

Improvements in the manufacture of anti-halation and filter layers

Info

Publication number
GB506385A
GB506385A GB3233937A GB3233937A GB506385A GB 506385 A GB506385 A GB 506385A GB 3233937 A GB3233937 A GB 3233937A GB 3233937 A GB3233937 A GB 3233937A GB 506385 A GB506385 A GB 506385A
Authority
GB
United Kingdom
Prior art keywords
naphthyl
group
pyrazolone
methine
alpha
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
GB3233937A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB3233937A priority Critical patent/GB506385A/en
Priority to FR846470D priority patent/FR846470A/en
Publication of GB506385A publication Critical patent/GB506385A/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
    • G03C1/76—Photosensitive materials characterised by the base or auxiliary layers
    • G03C1/825—Photosensitive materials characterised by the base or auxiliary layers characterised by antireflection means or visible-light filtering means, e.g. antihalation
    • G03C1/83—Organic dyestuffs therefor

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)

Abstract

506,385. Methine and polymethine dyes. GASPAR, B. Nov. 24, 1937, No. 32339. (Class 2 (iii)] [Also in Group XX] Antihalation and filter layers comprise readily destructible dyes consisting of two cyclic groups linked by a methine or polymethine chain, of the general formula wherein n is 0, 1, 2, or 3 and # represents a cyclic group with a carbonyl group adjacent to the carbon atom linked to the methine or polymethine chain. The cyclic group may be a heterocyclic group especially one in which the ring contains a nitrogen atom adjacent to the carbon atom of the carbonyl group. Suitable ring systems are pyrazolone, isoxazolone, barbituric acid, thiobarbituric acid and their substitution derivatives. The hydrogen atoms of the formula may be replaced by hydrocarbon groups. 4: 4<1>-methenyl-bis. (1-naphthyl-3-methyl-5-pyrazolone) is prepared by condensing 1-alpha-naphthyl-3-methylpyrazolone with orthoformic ester in the presence of acetic anhydride. 1-alpha-naphthyl-3- methyl-pyrazolone is prepared by reacting alpha-naphthyl-hydrazine with ethyl aceto-acetate. Substituted pyrazolones may be used in the above processes and in place of orthoformic ester, diphenylformamidine, ethyl-ortho acetate, formic acid, or chloroform and alkali in alcoholic solution may be used.
GB3233937A 1937-11-24 1937-11-24 Improvements in the manufacture of anti-halation and filter layers Expired GB506385A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB3233937A GB506385A (en) 1937-11-24 1937-11-24 Improvements in the manufacture of anti-halation and filter layers
FR846470D FR846470A (en) 1937-11-24 1938-11-23 Colored photographic layers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3233937A GB506385A (en) 1937-11-24 1937-11-24 Improvements in the manufacture of anti-halation and filter layers

Publications (1)

Publication Number Publication Date
GB506385A true GB506385A (en) 1939-05-24

Family

ID=10337067

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3233937A Expired GB506385A (en) 1937-11-24 1937-11-24 Improvements in the manufacture of anti-halation and filter layers

Country Status (2)

Country Link
FR (1) FR846470A (en)
GB (1) GB506385A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3512983A (en) * 1965-02-12 1970-05-19 Fuji Photo Film Co Ltd Photographic light-sensitive materials containing mordanted oxonol dyes
DE2321470A1 (en) * 1972-05-02 1973-11-22 Fuji Photo Film Co Ltd OXONOL DYES AND THE PROCESS FOR THEIR MANUFACTURING
DE2902685A1 (en) * 1978-01-26 1979-08-02 Ciba Geigy Ag PYRAZOLONE DYES AND THEIR USE IN PHOTOGRAPHICAL MATERIALS
EP0076705A1 (en) * 1981-10-07 1983-04-13 Konica Corporation Light-sensitive silver halide photographic material
WO1986004694A1 (en) 1985-02-06 1986-08-14 Fuji Photo Film Co., Ltd. Silver halide photographic photo-sensitive material
US4764455A (en) * 1985-08-06 1988-08-16 Fuji Photo Film Co., Ltd. Color image-forming process
EP0313051A1 (en) 1987-10-20 1989-04-26 Fuji Photo Film Co., Ltd. Silver halide photographic material
EP0397435A1 (en) * 1989-05-11 1990-11-14 Minnesota Mining And Manufacturing Company Near infrared antihalation dyes
US5035986A (en) * 1989-01-30 1991-07-30 Fuji Photo Film Co., Ltd. Silver halide color photographic material

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3512983A (en) * 1965-02-12 1970-05-19 Fuji Photo Film Co Ltd Photographic light-sensitive materials containing mordanted oxonol dyes
DE2321470A1 (en) * 1972-05-02 1973-11-22 Fuji Photo Film Co Ltd OXONOL DYES AND THE PROCESS FOR THEIR MANUFACTURING
DE2321470C2 (en) * 1972-05-02 1984-09-13 Fuji Photo Film Co., Ltd., Minami-Ashigara, Kanagawa Water-soluble oxonol dyes and processes for their preparation
DE2902685A1 (en) * 1978-01-26 1979-08-02 Ciba Geigy Ag PYRAZOLONE DYES AND THEIR USE IN PHOTOGRAPHICAL MATERIALS
US4234677A (en) * 1978-01-26 1980-11-18 Ciba-Geigy Ag Pyrazolone dyestuffs and their use in photographic materials
EP0076705A1 (en) * 1981-10-07 1983-04-13 Konica Corporation Light-sensitive silver halide photographic material
WO1986004694A1 (en) 1985-02-06 1986-08-14 Fuji Photo Film Co., Ltd. Silver halide photographic photo-sensitive material
US4764455A (en) * 1985-08-06 1988-08-16 Fuji Photo Film Co., Ltd. Color image-forming process
EP0313051A1 (en) 1987-10-20 1989-04-26 Fuji Photo Film Co., Ltd. Silver halide photographic material
US5035986A (en) * 1989-01-30 1991-07-30 Fuji Photo Film Co., Ltd. Silver halide color photographic material
EP0397435A1 (en) * 1989-05-11 1990-11-14 Minnesota Mining And Manufacturing Company Near infrared antihalation dyes
US5245045A (en) * 1989-05-11 1993-09-14 Minnesota Mining And Manufacturing Company Near infrared antihalation dyes

Also Published As

Publication number Publication date
FR846470A (en) 1939-09-18

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