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BR9708786A - Composição fotrocrÈmica e método para melhorar a fadiga à luz de uma composição fotocrÈmica - Google Patents

Composição fotrocrÈmica e método para melhorar a fadiga à luz de uma composição fotocrÈmica

Info

Publication number
BR9708786A
BR9708786A BR9708786-6A BR9708786A BR9708786A BR 9708786 A BR9708786 A BR 9708786A BR 9708786 A BR9708786 A BR 9708786A BR 9708786 A BR9708786 A BR 9708786A
Authority
BR
Brazil
Prior art keywords
photochromic composition
photochromic
stabilizing system
composition
weight percent
Prior art date
Application number
BR9708786-6A
Other languages
English (en)
Inventor
Michael S Misura
Original Assignee
Transitions Optical Inc
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 Transitions Optical Inc filed Critical Transitions Optical Inc
Publication of BR9708786A publication Critical patent/BR9708786A/pt

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters
    • G02B5/22—Absorbing filters
    • G02B5/23—Photochromic filters
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K9/00—Tenebrescent materials, i.e. materials for which the range of wavelengths for energy absorption is changed as a result of excitation by some form of energy
    • C09K9/02—Organic tenebrescent materials

Landscapes

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Optical Filters (AREA)
  • Pyrane Compounds (AREA)
  • Eyeglasses (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)

Abstract

"COMPOSIçãO FOTOCRÈMICA E MéTODO PARA MELHORAR A FADIGA à LUZ DE UMA COMPOSIçãO FOTOCRÈMICA", compreendendo uma composição de um portador, p.e., um solvente orgânico ou material hospedeiro polimérico, um material de naftopirano fotocrómico, e um sistema estabilizante compreendendo (a) um material antioxidante polifenólico, (b) um absorvente de luz ultravioleta e (c) um estabilizante de luz de amina retardada para o dito material de naftopirano fotocrómico. O sistema estabilizante e selecionado e usado em quantidades suficientes para prover pelo menos uma redução de 30% na fadiga fotópica % do material de naftopirano. A proporção em peso de naftopirano fotocrómico para sistema estabilizante é de 2,5:1 a 1,5:1. O sistema estabilizante poderá compreender 5 a 50 por cento em peso do material antioxidante, 5 a 50 por cento em peso do absorvente de luz ultravioleta, e de 10 a 90 por cento em peso do estabilizante de luz de amina retardada.
BR9708786-6A 1996-04-19 1997-04-14 Composição fotrocrÈmica e método para melhorar a fadiga à luz de uma composição fotocrÈmica BR9708786A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/639,855 US5770115A (en) 1996-04-19 1996-04-19 Photochromic naphthopyran compositions of improved fatigue resistance
PCT/US1997/006209 WO1997040409A1 (en) 1996-04-19 1997-04-14 Photochromic naphthopyran compositions of improved fatigue resistance

Publications (1)

Publication Number Publication Date
BR9708786A true BR9708786A (pt) 2000-01-04

Family

ID=24565842

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9708786-6A BR9708786A (pt) 1996-04-19 1997-04-14 Composição fotrocrÈmica e método para melhorar a fadiga à luz de uma composição fotocrÈmica

Country Status (7)

Country Link
US (1) US5770115A (pt)
EP (1) EP0894275B1 (pt)
JP (1) JP3190354B2 (pt)
AU (1) AU701934B2 (pt)
BR (1) BR9708786A (pt)
DE (1) DE69738180T2 (pt)
WO (1) WO1997040409A1 (pt)

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Also Published As

Publication number Publication date
EP0894275B1 (en) 2007-10-03
DE69738180T2 (de) 2008-07-03
AU701934B2 (en) 1999-02-11
AU2669097A (en) 1997-11-12
WO1997040409A1 (en) 1997-10-30
DE69738180D1 (de) 2007-11-15
EP0894275A4 (en) 2000-03-29
EP0894275A1 (en) 1999-02-03
JP3190354B2 (ja) 2001-07-23
US5770115A (en) 1998-06-23
JPH11511199A (ja) 1999-09-28

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Legal Events

Date Code Title Description
B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B11D Dismissal acc. art. 38, par 2 of ipl - failure to pay fee after grant in time