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BR8600381A - PROCESS OF INCREASING THE RESISTANCE TO LIGHT FATIGUE OF A PHOTOCHROMIC COMPOSITION AND PHOTOCHROMIC COMPOSITION - Google Patents

PROCESS OF INCREASING THE RESISTANCE TO LIGHT FATIGUE OF A PHOTOCHROMIC COMPOSITION AND PHOTOCHROMIC COMPOSITION

Info

Publication number
BR8600381A
BR8600381A BR8600381A BR8600381A BR8600381A BR 8600381 A BR8600381 A BR 8600381A BR 8600381 A BR8600381 A BR 8600381A BR 8600381 A BR8600381 A BR 8600381A BR 8600381 A BR8600381 A BR 8600381A
Authority
BR
Brazil
Prior art keywords
photochromic composition
dye
resistance
increasing
light fatigue
Prior art date
Application number
BR8600381A
Other languages
Portuguese (pt)
Inventor
Nori Y C Chu
Original Assignee
American Optical Corp
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 Optical Corp filed Critical American Optical Corp
Publication of BR8600381A publication Critical patent/BR8600381A/en

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)
  • Compositions Of Macromolecular Compounds (AREA)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
  • Heat Sensitive Colour Forming Recording (AREA)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
  • Medicinal Preparation (AREA)
  • Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
  • Glass Compositions (AREA)

Abstract

An organic photochromic composition comprises spiro [indoline-2,3'- [3H] -napht [2,1-b] [1,4] oxazine] dye (spirooxazine dye) and unconventional ultraviolet stabilizers. The ultraviolet stabilizers provide for a good light fatigue resistance of the spirooxazine (S.O.) dye and will not hinder the photocolorability of the photochromic composition. The unconventional ultraviolet stabilizers belong to the class of hindered amine light stabilizers (HALS) and excited state quenchers.
BR8600381A 1985-01-31 1986-01-30 PROCESS OF INCREASING THE RESISTANCE TO LIGHT FATIGUE OF A PHOTOCHROMIC COMPOSITION AND PHOTOCHROMIC COMPOSITION BR8600381A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US69645285A 1985-01-31 1985-01-31

Publications (1)

Publication Number Publication Date
BR8600381A true BR8600381A (en) 1986-10-14

Family

ID=24797122

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8600381A BR8600381A (en) 1985-01-31 1986-01-30 PROCESS OF INCREASING THE RESISTANCE TO LIGHT FATIGUE OF A PHOTOCHROMIC COMPOSITION AND PHOTOCHROMIC COMPOSITION

Country Status (6)

Country Link
EP (1) EP0195898B1 (en)
JP (1) JPS61241383A (en)
AT (1) ATE38391T1 (en)
BR (1) BR8600381A (en)
CA (1) CA1268034A (en)
DE (1) DE3661076D1 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU616650B2 (en) * 1987-02-02 1991-11-07 Toray Industries, Inc. Spirooxazine photochromic compounds and resins
JPH0794657B2 (en) * 1987-10-16 1995-10-11 日産自動車株式会社 Photochromic photosensitive material
IT1223067B (en) * 1987-11-05 1990-09-12 Enichem Sintesi PHOTOCROMATIC COMPOUND AND PHOTOCROMATIC ITEMS THAT CONTAIN IT
US5180524A (en) * 1987-11-05 1993-01-19 Enichem Synthesis S.P.A. Photochromatic composition and photochromatic articles which contain it
EP0346484B1 (en) * 1987-12-02 1995-08-16 Japan Capsular Products, Inc. Microencapsulated photochromic material, process for its preparation, and water-base ink composition prepared therefrom
JP2545606B2 (en) * 1988-07-05 1996-10-23 呉羽化学工業株式会社 Photochromic compound and photochromic composition
GB8828091D0 (en) * 1988-12-01 1989-01-05 Traqson Ltd Security marking
IT1230711B (en) * 1989-02-10 1991-10-29 Enichem Sintesi PHOTOCROMATIC COMPOSITION EQUIPPED WITH RESISTANCE TO FATIGUE TO LIGHT AND PHOTOCROMATIC ITEMS THAT CONTAIN IT.
US5225113A (en) * 1989-02-10 1993-07-06 Enichem Synthesis S.P.A. Photochromatic composition endowed with light fatigue resistance and photochromatic articles which contain it
JP2755444B2 (en) * 1989-09-28 1998-05-20 株式会社トクヤマ Chromen composition
AU637868B2 (en) * 1990-07-04 1993-06-10 Lintec Corporation Photochromic composition
EP0612796A1 (en) * 1993-02-23 1994-08-31 Ciba-Geigy Ag Stabilisation of organic pigments
DE69421635T2 (en) * 1993-02-23 2000-06-15 Ciba Specialty Chemicals Holding Inc., Basel Stabilization of pyrrolopyrrole pigments
WO2008043853A2 (en) * 2006-10-12 2008-04-17 Opco Gmbh Photochromic film

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD156372A1 (en) * 1981-02-13 1982-08-18 Manfred Reichenbaecher PHOTOCHROME MEDIA USING 1,4-2H-OXAZINES AND SPIROPHENANTHRO-1,4-2H-OXAZINES
US4440672A (en) * 1982-03-22 1984-04-03 American Optical Corporation Photochromic composition resistant to fatigue

Also Published As

Publication number Publication date
ATE38391T1 (en) 1988-11-15
JPH0343315B2 (en) 1991-07-02
CA1268034A (en) 1990-04-24
EP0195898A1 (en) 1986-10-01
JPS61241383A (en) 1986-10-27
EP0195898B1 (en) 1988-11-02
DE3661076D1 (en) 1988-12-08

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Legal Events

Date Code Title Description
B21A Patent or certificate of addition expired [chapter 21.1 patent gazette]

Free format text: PATENTE EXTINTA EM 30/01/2001