FR2011389A1 - Photochromic materials comprising photochromic cpd and - Google Patents

Photochromic materials comprising photochromic cpd and

Info

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Withdrawn
Application number
FR6920558A
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wyeth Holdings LLC
Original Assignee
American Cyanamid Co
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 American Cyanamid Co filed Critical American Cyanamid Co
Publication of FR2011389A1 publication Critical patent/FR2011389A1/en
Withdrawn legal-status Critical Current

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.
FR6920558A 1968-06-21 1969-06-19 Photochromic materials comprising photochromic cpd and Withdrawn FR2011389A1 (en)

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)

Also Published As

Publication number Publication date
NL6907674A (en) 1969-12-23
BE734895A (en) 1969-12-22
DE1931564A1 (en) 1970-01-08

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Legal Events

Date Code Title Description
ST Notification of lapse