BE1006104A6 - Articles photochromes et procede pour leur preparation. - Google Patents

Articles photochromes et procede pour leur preparation. Download PDF

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Publication number
BE1006104A6
BE1006104A6 BE9301095A BE9301095A BE1006104A6 BE 1006104 A6 BE1006104 A6 BE 1006104A6 BE 9301095 A BE9301095 A BE 9301095A BE 9301095 A BE9301095 A BE 9301095A BE 1006104 A6 BE1006104 A6 BE 1006104A6
Authority
BE
Belgium
Prior art keywords
group
sep
refractive index
hours
high refractive
Prior art date
Application number
BE9301095A
Other languages
English (en)
French (fr)
Inventor
Daniele Girelli
Luciana Crisci
Pietro Allegrini
Original Assignee
Enichem Sintesi
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 Enichem Sintesi filed Critical Enichem Sintesi
Application granted granted Critical
Publication of BE1006104A6 publication Critical patent/BE1006104A6/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D498/00—Heterocyclic compounds containing in the condensed system at least one hetero ring having nitrogen and oxygen atoms as the only ring hetero atoms
    • C07D498/02—Heterocyclic compounds containing in the condensed system at least one hetero ring having nitrogen and oxygen atoms as the only ring hetero atoms in which the condensed system contains two hetero rings
    • C07D498/10—Spiro-condensed systems
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F283/00—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G
    • C08F283/006—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polymers provided for in C08G18/00
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
    • G02B1/041—Lenses

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Macromonomer-Based Addition Polymer (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
BE9301095A 1992-10-16 1993-10-15 Articles photochromes et procede pour leur preparation. BE1006104A6 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT92MI2379 IT1255878B (it) 1992-10-16 1992-10-16 Articoli fotocromatici e procedimento per la loro preparazione

Publications (1)

Publication Number Publication Date
BE1006104A6 true BE1006104A6 (fr) 1994-05-10

Family

ID=11364123

Family Applications (1)

Application Number Title Priority Date Filing Date
BE9301095A BE1006104A6 (fr) 1992-10-16 1993-10-15 Articles photochromes et procede pour leur preparation.

Country Status (2)

Country Link
BE (1) BE1006104A6 (it)
IT (1) IT1255878B (it)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995010790A1 (en) * 1993-10-15 1995-04-20 Ppg Industries, Inc. High refractive index photochromic ophthalmic article
CN104892631A (zh) * 2015-06-04 2015-09-09 中国中化股份有限公司 含磺酸基螺恶嗪类光致变色化合物及其制备方法和应用

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995010790A1 (en) * 1993-10-15 1995-04-20 Ppg Industries, Inc. High refractive index photochromic ophthalmic article
CN104892631A (zh) * 2015-06-04 2015-09-09 中国中化股份有限公司 含磺酸基螺恶嗪类光致变色化合物及其制备方法和应用

Also Published As

Publication number Publication date
IT1255878B (it) 1995-11-17
ITMI922379A1 (it) 1994-04-16
ITMI922379A0 (it) 1992-10-16

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Legal Events

Date Code Title Description
RE20 Patent expired

Owner name: ENICHEM SYNTHESIS S.P.A.

Effective date: 19991015