ITMI922379A1 - Articoli fotocromatici e procedimento per la loro preparazione - Google Patents
Articoli fotocromatici e procedimento per la loro preparazioneInfo
- Publication number
- ITMI922379A1 ITMI922379A1 IT002379A ITMI922379A ITMI922379A1 IT MI922379 A1 ITMI922379 A1 IT MI922379A1 IT 002379 A IT002379 A IT 002379A IT MI922379 A ITMI922379 A IT MI922379A IT MI922379 A1 ITMI922379 A1 IT MI922379A1
- Authority
- IT
- Italy
- Prior art keywords
- photochromatic
- items
- procedure
- preparation
- photochromatic items
- Prior art date
Links
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)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT002379 IT1255878B (it) | 1992-10-16 | 1992-10-16 | Articoli fotocromatici e procedimento per la loro preparazione |
BE9301095A BE1006104A6 (fr) | 1992-10-16 | 1993-10-15 | Articles photochromes et procede pour leur preparation. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT002379 IT1255878B (it) | 1992-10-16 | 1992-10-16 | Articoli fotocromatici e procedimento per la loro preparazione |
Publications (3)
Publication Number | Publication Date |
---|---|
ITMI922379A0 ITMI922379A0 (it) | 1992-10-16 |
ITMI922379A1 true ITMI922379A1 (it) | 1994-04-16 |
IT1255878B IT1255878B (it) | 1995-11-17 |
Family
ID=11364123
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT002379 IT1255878B (it) | 1992-10-16 | 1992-10-16 | Articoli fotocromatici e procedimento per la loro preparazione |
Country Status (2)
Country | Link |
---|---|
BE (1) | BE1006104A6 (it) |
IT (1) | IT1255878B (it) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5708064A (en) * | 1993-10-15 | 1998-01-13 | Ppg Industries, Inc. | High refractive index photochromic ophthalmic article |
CN104892631B (zh) * | 2015-06-04 | 2018-03-02 | 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 |
-
1992
- 1992-10-16 IT IT002379 patent/IT1255878B/it active IP Right Grant
-
1993
- 1993-10-15 BE BE9301095A patent/BE1006104A6/fr not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
ITMI922379A0 (it) | 1992-10-16 |
IT1255878B (it) | 1995-11-17 |
BE1006104A6 (fr) | 1994-05-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
0001 | Granted | ||
TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19971014 |