FR2314168A1 - Bis anthryl or bis phenanthryl derivs. prepn. - having photochromic properties, useful e.g. in the registration of holograms - Google Patents
Bis anthryl or bis phenanthryl derivs. prepn. - having photochromic properties, useful e.g. in the registration of hologramsInfo
- Publication number
- FR2314168A1 FR2314168A1 FR7518559A FR7518559A FR2314168A1 FR 2314168 A1 FR2314168 A1 FR 2314168A1 FR 7518559 A FR7518559 A FR 7518559A FR 7518559 A FR7518559 A FR 7518559A FR 2314168 A1 FR2314168 A1 FR 2314168A1
- Authority
- FR
- France
- Prior art keywords
- bis
- alkyl
- holograms
- registration
- useful
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C13/00—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00
- G11C13/04—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using optical elements ; using other beam accessed elements, e.g. electron or ion beam
- G11C13/042—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using optical elements ; using other beam accessed elements, e.g. electron or ion beam using information stored in the form of interference pattern
- G11C13/045—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using optical elements ; using other beam accessed elements, e.g. electron or ion beam using information stored in the form of interference pattern using photochromic storage elements
-
- 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)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
Abstract
in which X is -CR'R", Y is -O- and Z is -CR'R"-; X' is -CR'R", Y' is -O- and Z' is -CR'R"-; A, C, D, F, A', C', D', and F' are H, halogen, alkyl, aryl, alkaryl, aralkyl, alkoxy, hydroxyl, hydroxyalkyl, opt. substd. amino, alkylamino, hydroxyamino, thioalkyl, carboxyl, or siloxy gps. whereby there may be more than one substituent A, C, D, F, A', C', D' and F' on the respective rings; B is H, alkyl or an electron donor gp. such as -OR or -NR2, and E is H, alkyl or an electron acceptor gp. such as -CN, -CHO, -CO-R, or -CO.NHR where R is an opt. substd. hydrocarbon gp.; R' and R" are H, halogen, alkyl or alkoxy. The photoisomers of cpds. (I) and (II) are also claimed. (I) and (II) have photochromic properties and undergo a reversible reacting with the formation of a colourless photoisomer. Prods. are useful for the registration of holograms and for use in reprography, photography and optical memory devices.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7518559A FR2314168A1 (en) | 1975-06-13 | 1975-06-13 | Bis anthryl or bis phenanthryl derivs. prepn. - having photochromic properties, useful e.g. in the registration of holograms |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7518559A FR2314168A1 (en) | 1975-06-13 | 1975-06-13 | Bis anthryl or bis phenanthryl derivs. prepn. - having photochromic properties, useful e.g. in the registration of holograms |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2314168A1 true FR2314168A1 (en) | 1977-01-07 |
FR2314168B1 FR2314168B1 (en) | 1978-11-17 |
Family
ID=9156496
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7518559A Granted FR2314168A1 (en) | 1975-06-13 | 1975-06-13 | Bis anthryl or bis phenanthryl derivs. prepn. - having photochromic properties, useful e.g. in the registration of holograms |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2314168A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0403739A2 (en) * | 1989-03-27 | 1990-12-27 | Hitachi, Ltd. | Photosensitive compounds and their preparation and use |
-
1975
- 1975-06-13 FR FR7518559A patent/FR2314168A1/en active Granted
Non-Patent Citations (1)
Title |
---|
NEANT * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0403739A2 (en) * | 1989-03-27 | 1990-12-27 | Hitachi, Ltd. | Photosensitive compounds and their preparation and use |
EP0403739A3 (en) * | 1989-03-27 | 1991-09-04 | Hitachi, Ltd. | Photosensitive compounds and their preparation and use |
Also Published As
Publication number | Publication date |
---|---|
FR2314168B1 (en) | 1978-11-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |