NL187018B - METHOD FOR PREPARING A PHOTOCHROME succinic acid compound - Google Patents
METHOD FOR PREPARING A PHOTOCHROME succinic acid compoundInfo
- Publication number
- NL187018B NL187018B NL7411587A NL7411587A NL187018B NL 187018 B NL187018 B NL 187018B NL 7411587 A NL7411587 A NL 7411587A NL 7411587 A NL7411587 A NL 7411587A NL 187018 B NL187018 B NL 187018B
- Authority
- NL
- Netherlands
- Prior art keywords
- photochrome
- preparing
- succinic acid
- acid compound
- compound
- Prior art date
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)
- Optical Record Carriers And Manufacture Thereof (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
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 NL7411587A (en) | 1975-03-04 |
NL187018B true 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) |
Families Citing this family (5)
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 |
EP0140540B1 (en) * | 1983-09-07 | 1990-05-09 | THE PLESSEY COMPANY plc | Photochromic compounds and their uses in photoreactive lenses |
EP0420397B1 (en) * | 1989-07-28 | 1995-11-29 | Wako Pure Chemical Industries 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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1271655A (en) * | 1968-03-25 | 1972-04-26 | Hawker Siddeley Dynamics Ltd | Derivatives of fulgimide |
-
1973
- 1973-09-01 GB GB4123373A patent/GB1442628A/en not_active Expired
-
1974
- 1974-08-29 FR FR7429508A patent/FR2242452B1/fr not_active Expired
- 1974-08-30 IT IT2683174A patent/IT1030606B/en active
- 1974-08-30 NL NL7411587A patent/NL187018C/en not_active IP Right Cessation
- 1974-08-30 DE DE19742441759 patent/DE2441759C2/en not_active Expired
- 1974-09-02 JP JP10079174A patent/JPS611425B2/ja not_active Expired
-
1980
- 1980-05-08 HK HK24380A patent/HK24380A/en unknown
Also Published As
Publication number | Publication date |
---|---|
JPS611425B2 (en) | 1986-01-17 |
IT1030606B (en) | 1979-04-10 |
FR2242452B1 (en) | 1978-03-31 |
DE2441759A1 (en) | 1975-03-13 |
DE2441759C2 (en) | 1986-10-16 |
GB1442628A (en) | 1976-07-14 |
NL7411587A (en) | 1975-03-04 |
FR2242452A1 (en) | 1975-03-28 |
JPS5082029A (en) | 1975-07-03 |
HK24380A (en) | 1980-05-16 |
NL187018C (en) | 1991-05-01 |
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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 |