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NL7411587A - PHOTOCHROME COMPOUNDS AS WELL AS THE METHOD FOR PREPARING THEM. - Google Patents

PHOTOCHROME COMPOUNDS AS WELL AS THE METHOD FOR PREPARING THEM.

Info

Publication number
NL7411587A
NL7411587A NL7411587A NL7411587A NL7411587A NL 7411587 A NL7411587 A NL 7411587A NL 7411587 A NL7411587 A NL 7411587A NL 7411587 A NL7411587 A NL 7411587A NL 7411587 A NL7411587 A NL 7411587A
Authority
NL
Netherlands
Prior art keywords
preparing
well
photochrome
compounds
photochrome compounds
Prior art date
Application number
NL7411587A
Other languages
Dutch (nl)
Other versions
NL187018B (en
NL187018C (en
Original Assignee
Heller George H
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 George H filed Critical Heller George H
Publication of NL7411587A publication Critical patent/NL7411587A/en
Publication of NL187018B publication Critical patent/NL187018B/en
Application granted granted Critical
Publication of NL187018C publication Critical patent/NL187018C/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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Furan Compounds (AREA)
  • Pyrrole Compounds (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
NL7411587A 1973-09-01 1974-08-30 METHOD FOR PREPARING A PHOTOCHROME succinic acid compound NL187018C (en)

Applications Claiming Priority (1)

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

Publications (3)

Publication Number Publication Date
NL7411587A true NL7411587A (en) 1975-03-04
NL187018B NL187018B (en) 1990-12-03
NL187018C NL187018C (en) 1991-05-01

Family

ID=10418742

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7411587A NL187018C (en) 1973-09-01 1974-08-30 METHOD FOR PREPARING A PHOTOCHROME succinic acid compound

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)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7712693A (en) * 1977-10-28 1979-05-02 Plessey Co Ltd PHOTOCHROME CONNECTIONS AND METHOD FOR PREPARING THEM AS WELL AS PHOTOCHROME DEVICE AND METHOD FOR HOLOGRAPHIC REGISTRATION AND STORAGE OF DATA.

Families Citing this family (4)

* 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
KR850002328A (en) * 1983-09-07 1985-05-10 알. 니콜슨 Variable color compound, preparation method thereof and variable color lens using the same
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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7712693A (en) * 1977-10-28 1979-05-02 Plessey Co Ltd PHOTOCHROME CONNECTIONS AND METHOD FOR PREPARING THEM AS WELL AS PHOTOCHROME DEVICE AND METHOD FOR HOLOGRAPHIC REGISTRATION AND STORAGE OF DATA.

Also Published As

Publication number Publication date
FR2242452A1 (en) 1975-03-28
HK24380A (en) 1980-05-16
FR2242452B1 (en) 1978-03-31
DE2441759A1 (en) 1975-03-13
JPS611425B2 (en) 1986-01-17
NL187018B (en) 1990-12-03
IT1030606B (en) 1979-04-10
JPS5082029A (en) 1975-07-03
NL187018C (en) 1991-05-01
GB1442628A (en) 1976-07-14
DE2441759C2 (en) 1986-10-16

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Legal Events

Date Code Title Description
BA A request for search or an international-type search has been filed
BB A search report has been drawn up
BC A request for examination has been filed
A85 Still pending on 85-01-01
SNR Assignments of patents or rights arising from examined patent applications

Owner name: GEC-MARCONI LIMITED

V1 Lapsed because of non-payment of the annual fee