GB816026A - Process for manufacturing photographic material distinguishable in ultra-violet light - Google Patents

Process for manufacturing photographic material distinguishable in ultra-violet light

Info

Publication number
GB816026A
GB816026A GB12233/57A GB1223357A GB816026A GB 816026 A GB816026 A GB 816026A GB 12233/57 A GB12233/57 A GB 12233/57A GB 1223357 A GB1223357 A GB 1223357A GB 816026 A GB816026 A GB 816026A
Authority
GB
United Kingdom
Prior art keywords
benzothiazolyl
styryl
pyrazoline
cinnamal
acetone
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
GB12233/57A
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.)
Ferrania SpA
Original Assignee
Ferrania SpA
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 Ferrania SpA filed Critical Ferrania SpA
Publication of GB816026A publication Critical patent/GB816026A/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
    • G03C1/815—Photosensitive materials characterised by the base or auxiliary layers characterised by means for filtering or absorbing ultraviolet light, e.g. optical bleaching
    • G03C1/8155—Organic compounds therefor
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/16—Nitrogen-containing compounds
    • C08K5/34—Heterocyclic compounds having nitrogen in the ring
    • C08K5/3442—Heterocyclic compounds having nitrogen in the ring having two nitrogen atoms in the ring
    • C08K5/3445—Five-membered rings

Abstract

A cellulose organic ester or nitrate for making photographic film base is rendered fluorescent in ultra-violet light by adding thereto from 0.0005 to 0.003 per cent by weight of a compound of the formula <FORM:0816026/IV (a)/1> wherein R, R1 and R11 are substituted or unsubstituted aromatic groups, R being attached directly to the ring and at least one of R1 and R11 being joined to the ring by a -(CH=CH-)n group (where n is 1 or 2), and at least one of R, R1 and R11 being a heterocyclic group which may or may not be joined to the ring by a -(CH=CH-)n group. Compounds specified are 1 - (2 - benzothiazolyl) - 3 - styryl - 5 - phenyl pyrazoline, 1 - (2 - benzothiazolyl) - 3 - furovinyl - 5 - furyl pyrazoline, 1 - phenyl - 3 - cinnamal - methyl - 5 - furyl pyrazoline, 1 - (2 - benzothiazolyl) - 3 - p - chlorophenyl - 5 - styryl pyrazoline and 1-(2-benzothiazolyl)-3-cinnamal-methyl-5-styryl pyrazoline. The cellulose ester may be the acetate.ALSO:1-(2-Benzothiazolyl)-3-styryl-5-phenyl pyrazoline is prepared by heating dibenzal-acetone and 2-benzothiazolylhydrazine with sodium ethoxide on the water bath. By using difurfural-acetone, cinnamal - p - chloroacetophenone or dicinnamal-acetone in place of dibenzal-acetone, the corresponding 3 - furovinyl - 5 - furyl-, 3 - p - chlorophenyl - 5 - styryl-, and 3 - cinnamal - methyl - 5 - styryl- 1 - (2 - benzothiazolyl) pyrazolines are obtained.
GB12233/57A 1954-08-04 1957-04-15 Process for manufacturing photographic material distinguishable in ultra-violet light Expired GB816026A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT772916X 1954-08-04

Publications (1)

Publication Number Publication Date
GB816026A true GB816026A (en) 1959-07-08

Family

ID=11316186

Family Applications (2)

Application Number Title Priority Date Filing Date
GB21728/55A Expired GB772916A (en) 1954-08-04 1955-07-27 Process for manufacturing photographic material distinguishable in ultra-violet light
GB12233/57A Expired GB816026A (en) 1954-08-04 1957-04-15 Process for manufacturing photographic material distinguishable in ultra-violet light

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB21728/55A Expired GB772916A (en) 1954-08-04 1955-07-27 Process for manufacturing photographic material distinguishable in ultra-violet light

Country Status (3)

Country Link
DE (1) DE1008569B (en)
FR (2) FR1128788A (en)
GB (2) GB772916A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL290832A (en) * 1962-03-31

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE506515A (en) * 1950-10-26
US2653873A (en) * 1951-08-17 1953-09-29 Eastman Kodak Co Light-sensitive photographic element

Also Published As

Publication number Publication date
FR1128788A (en) 1957-01-10
DE1008569B (en) 1957-05-16
FR71553E (en) 1960-01-05
GB772916A (en) 1957-04-17

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