IT1030606B - PHOTOCROMATIC COMPOUNDS AND THEIR PREPARATION PROCESS - Google Patents

PHOTOCROMATIC COMPOUNDS AND THEIR PREPARATION PROCESS

Info

Publication number
IT1030606B
IT1030606B IT2683174A IT2683174A IT1030606B IT 1030606 B IT1030606 B IT 1030606B IT 2683174 A IT2683174 A IT 2683174A IT 2683174 A IT2683174 A IT 2683174A IT 1030606 B IT1030606 B IT 1030606B
Authority
IT
Italy
Prior art keywords
photocromatic
compounds
preparation process
preparation
photocromatic compounds
Prior art date
Application number
IT2683174A
Other languages
Italian (it)
Original Assignee
Heller H G
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 Heller H G filed Critical Heller H G
Application granted granted Critical
Publication of IT1030606B publication Critical patent/IT1030606B/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D207/00—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom
    • C07D207/02—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
    • C07D307/02—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings
    • 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
    • G03C1/72—Photosensitive compositions not covered by the groups G03C1/005 - G03C1/705
    • G03C1/73—Photosensitive compositions not covered by the groups G03C1/005 - G03C1/705 containing organic compounds
IT2683174A 1973-09-01 1974-08-30 PHOTOCROMATIC COMPOUNDS AND THEIR PREPARATION PROCESS IT1030606B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4123373A GB1442628A (en) 1973-09-01 1973-09-01 Photochromic compounds

Publications (1)

Publication Number Publication Date
IT1030606B true IT1030606B (en) 1979-04-10

Family

ID=10418742

Family Applications (1)

Application Number Title Priority Date Filing Date
IT2683174A IT1030606B (en) 1973-09-01 1974-08-30 PHOTOCROMATIC COMPOUNDS AND THEIR PREPARATION PROCESS

Country Status (7)

Country Link
JP (1) JPS611425B2 (en)
DE (1) DE2441759C2 (en)
FR (1) FR2242452B1 (en)
GB (1) GB1442628A (en)
HK (1) HK24380A (en)
IT (1) IT1030606B (en)
NL (1) NL187018C (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4220708A (en) * 1977-07-22 1980-09-02 Heller Harold G Photochromic compounds
GB1600615A (en) * 1977-10-28 1981-10-21 Plessey Co Ltd Photochromic compounds
BR8404401A (en) * 1983-09-07 1985-07-30 Plessey Co Plc COMPOUND, HELIOCHROMIC COMPOUND, PROCESS OF ITS PREPARATION AND OPHTHALMIC LENS OR PHOTORREATIVE FLAT FACE
DE69023865T2 (en) * 1989-07-28 1996-10-17 Wako Pure Chem Ind Ltd Fulgimide derivatives.
AU658271B2 (en) * 1992-03-26 1995-04-06 Tanabe Seiyaku Co., Ltd. Butadiene derivatives and process for preparing the same

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1271655A (en) * 1968-03-25 1972-04-26 Hawker Siddeley Dynamics Ltd Derivatives of fulgimide

Also Published As

Publication number Publication date
HK24380A (en) 1980-05-16
NL187018B (en) 1990-12-03
JPS5082029A (en) 1975-07-03
GB1442628A (en) 1976-07-14
FR2242452A1 (en) 1975-03-28
DE2441759C2 (en) 1986-10-16
NL187018C (en) 1991-05-01
NL7411587A (en) 1975-03-04
DE2441759A1 (en) 1975-03-13
FR2242452B1 (en) 1978-03-31
JPS611425B2 (en) 1986-01-17

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