FR2011389A1 - Photochromic materials comprising photochromic cpd and - Google Patents
Photochromic materials comprising photochromic cpd andInfo
- Publication number
- FR2011389A1 FR2011389A1 FR6920558A FR6920558A FR2011389A1 FR 2011389 A1 FR2011389 A1 FR 2011389A1 FR 6920558 A FR6920558 A FR 6920558A FR 6920558 A FR6920558 A FR 6920558A FR 2011389 A1 FR2011389 A1 FR 2011389A1
- Authority
- FR
- France
- Prior art keywords
- photochromic
- cpd
- materials
- light
- photochromic materials
- 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.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
- B41M5/28—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used using thermochromic compounds or layers containing liquid crystals, microcapsules, bleachable dyes or heat- decomposable compounds, e.g. gas- liberating
- B41M5/282—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used using thermochromic compounds or layers containing liquid crystals, microcapsules, bleachable dyes or heat- decomposable compounds, e.g. gas- liberating using thermochromic compounds
-
- 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
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- General Physics & Mathematics (AREA)
- Laminated Bodies (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Photochromic materials comprising (1) a photochromic cpd. sensitive to UV light of 200-420 m mu (2) infra red (IR) absorber functioning at 0.7-20 microns, (3) mounted on a self-supporting base layer. As information-transmitting medium, whereby UV light is beamed onto the surface to give a coloured background.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US73883468A | 1968-06-21 | 1968-06-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2011389A1 true FR2011389A1 (en) | 1970-02-27 |
Family
ID=24969687
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR6920558A Withdrawn FR2011389A1 (en) | 1968-06-21 | 1969-06-19 | Photochromic materials comprising photochromic cpd and |
Country Status (4)
Country | Link |
---|---|
BE (1) | BE734895A (en) |
DE (1) | DE1931564A1 (en) |
FR (1) | FR2011389A1 (en) |
NL (1) | NL6907674A (en) |
-
1969
- 1969-05-20 NL NL6907674A patent/NL6907674A/xx unknown
- 1969-06-19 FR FR6920558A patent/FR2011389A1/en not_active Withdrawn
- 1969-06-20 BE BE734895D patent/BE734895A/xx unknown
- 1969-06-21 DE DE19691931564 patent/DE1931564A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
BE734895A (en) | 1969-12-22 |
NL6907674A (en) | 1969-12-23 |
DE1931564A1 (en) | 1970-01-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |