GB1226891A - - Google Patents

Info

Publication number
GB1226891A
GB1226891A GB1226891DA GB1226891A GB 1226891 A GB1226891 A GB 1226891A GB 1226891D A GB1226891D A GB 1226891DA GB 1226891 A GB1226891 A GB 1226891A
Authority
GB
United Kingdom
Prior art keywords
polyvinyl acetate
photochromic
composition
group
cho
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.)
Expired
Application number
Other languages
English (en)
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 filed Critical
Publication of GB1226891A publication Critical patent/GB1226891A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G03C1/685—Compositions containing spiro-condensed pyran compounds or derivatives thereof, as photosensitive substances

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
GB1226891D 1968-05-08 1969-05-08 Expired GB1226891A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3079368 1968-05-08

Publications (1)

Publication Number Publication Date
GB1226891A true GB1226891A (fr) 1971-03-31

Family

ID=12313543

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1226891D Expired GB1226891A (fr) 1968-05-08 1969-05-08

Country Status (4)

Country Link
BE (1) BE732683A (fr)
DE (1) DE1922842A1 (fr)
FR (1) FR2008056A1 (fr)
GB (1) GB1226891A (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1591830A3 (fr) * 2004-04-29 2005-11-23 Xerox Corporation Support sur lequel une image peut être formée plusieurs fois
US7205088B2 (en) 2004-04-29 2007-04-17 Xerox Corporation Reimageable medium with light absorbing material
US7300727B2 (en) 2004-04-29 2007-11-27 Xerox Corporation Method for forming temporary image

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2725391B2 (ja) * 1989-07-31 1998-03-11 松下電器産業株式会社 フォトクロミック材料及びフォトクロミック材料の製造方法
JP2759689B2 (ja) * 1989-11-24 1998-05-28 松下電器産業株式会社 Ｒａｍの読み出し回路

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1591830A3 (fr) * 2004-04-29 2005-11-23 Xerox Corporation Support sur lequel une image peut être formée plusieurs fois
US7205088B2 (en) 2004-04-29 2007-04-17 Xerox Corporation Reimageable medium with light absorbing material
US7214456B2 (en) 2004-04-29 2007-05-08 Xerox Corporation Reimageable medium
US7300727B2 (en) 2004-04-29 2007-11-27 Xerox Corporation Method for forming temporary image

Also Published As

Publication number Publication date
BE732683A (fr) 1969-10-16
DE1922842A1 (de) 1969-12-04
FR2008056A1 (fr) 1970-01-16

Similar Documents

Publication Publication Date Title
US3562172A (en) Photochromic compound and composition containing the same
US3615562A (en) Cyanine dye photographic film
US3532638A (en) Phototropic compositions
GB955029A (en) Photosensitive compositions
GB997396A (en) 2,4,5 - triphenylimidazole dimers
GB1226891A (fr)
GB812726A (en) Ultra-violet absorbing filters
GB1173328A (en) Photosensitive Compositions
GB1444447A (en) Heat-developable photographic material
GB1452319A (en) Silver halide photosensitive material
GB1286885A (en) Process for preparing fluorane compounds
US3773508A (en) Imagewise exposing and heating a photosensitive composition containing a spiropyran compound and an organic peroxide
US4066459A (en) Free radical photosensitive compositions with improved sensitivity and shelf life stability
GB1470451A (en) Heat-processable photographic materials
GB1246186A (en) Photochromic indolino spirochromenes
US3342604A (en) Non-silver photosensitive printout compositions
GB1211805A (en) Process for the production of light-sensitive diazo compounds and light-sensitive material produced with these diazo compounds
US3578680A (en) Photochromic compound
GB526684A (en) Improvements in and relating to dyestuffs for sensitising photographic emulsions
US3395018A (en) Light-sensitive color-forming composition
US3714187A (en) Spiro(indoline-2,2'-2h'-chromene)photochromic compounds
GB1135780A (en) Coating surfaces
US4021246A (en) Free radical photosensitive compositions containing bis-sulfides or sulfinyl esters as antifoggants
GB1384535A (en) Information-wise photo-activated bleaching
GB1269429A (en) A photoconductive material suitable for use in electrophotography

Legal Events

Date Code Title Description
414F Notice of opposition given (sect. 14/1949)
414A Case decided by the comptroller ** specification amended (sect. 14/1949)
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees