IT1256226B - Procedimento per aumentare la resistenza all'invecchiamento di articoli fotocromatici - Google Patents

Procedimento per aumentare la resistenza all'invecchiamento di articoli fotocromatici

Info

Publication number
IT1256226B
IT1256226B ITMI922937A IT1256226B IT 1256226 B IT1256226 B IT 1256226B IT MI922937 A ITMI922937 A IT MI922937A IT 1256226 B IT1256226 B IT 1256226B
Authority
IT
Italy
Prior art keywords
ageing
oxygen
applying
resistance
increasing
Prior art date
Application number
Other languages
English (en)
Inventor
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
Priority to IT002937 priority Critical patent/IT1256226B/it
Publication of ITMI922937A0 publication Critical patent/ITMI922937A0/it
Priority to BE9301441A priority patent/BE1007885A6/fr
Publication of ITMI922937A1 publication Critical patent/ITMI922937A1/it
Application granted granted Critical
Publication of IT1256226B publication Critical patent/IT1256226B/it

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/16—Nitrogen-containing compounds
    • C08K5/34—Heterocyclic compounds having nitrogen in the ring
    • C08K5/35—Heterocyclic compounds having nitrogen in the ring having also oxygen in the ring
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/16—Nitrogen-containing compounds
    • C08K5/34—Heterocyclic compounds having nitrogen in the ring
    • C08K5/3412—Heterocyclic compounds having nitrogen in the ring having one nitrogen atom in the ring
    • C08K5/3415—Five-membered rings
    • C08K5/3417—Five-membered rings condensed with carbocyclic rings
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/16—Nitrogen-containing compounds
    • C08K5/34—Heterocyclic compounds having nitrogen in the ring
    • C08K5/3412—Heterocyclic compounds having nitrogen in the ring having one nitrogen atom in the ring
    • C08K5/3432—Six-membered rings
    • C08K5/3435—Piperidines
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/16—Nitrogen-containing compounds
    • C08K5/34—Heterocyclic compounds having nitrogen in the ring
    • C08K5/3467—Heterocyclic compounds having nitrogen in the ring having more than two nitrogen atoms in the ring
    • C08K5/3477—Six-membered rings
    • C08K5/3492—Triazines
    • C08K5/34922—Melamine; Derivatives thereof
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
  • Coating Of Shaped Articles Made Of Macromolecular Substances (AREA)

Abstract

Procedimento per aumentare la resistenza all'invecchiamento di articoli fotocromatici in materiale polimerico comprendente:a) formare gli articoli con il materiale polimerico additivato con un composto fotocromatico organico ed un'ammina stericamente impedita;b) isolare la superficie degli articoli così ottenuti con un rivestimento impermeabile all'ossigeno ed all'umidità.
IT002937 1992-12-23 1992-12-23 Procedimento per aumentare la resistenza all'invecchiamento di articoli fotocromatici IT1256226B (it)

Priority Applications (2)

Application Number Priority Date Filing Date Title
IT002937 IT1256226B (it) 1992-12-23 1992-12-23 Procedimento per aumentare la resistenza all'invecchiamento di articoli fotocromatici
BE9301441A BE1007885A6 (fr) 1992-12-23 1993-12-22 Procede en vue d'augmenter la resistance au vieillissement d'articles photochromiques.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT002937 IT1256226B (it) 1992-12-23 1992-12-23 Procedimento per aumentare la resistenza all'invecchiamento di articoli fotocromatici

Publications (3)

Publication Number Publication Date
ITMI922937A0 ITMI922937A0 (it) 1992-12-23
ITMI922937A1 ITMI922937A1 (it) 1994-06-23
IT1256226B true IT1256226B (it) 1995-11-29

Family

ID=11364516

Family Applications (1)

Application Number Title Priority Date Filing Date
IT002937 IT1256226B (it) 1992-12-23 1992-12-23 Procedimento per aumentare la resistenza all'invecchiamento di articoli fotocromatici

Country Status (2)

Country Link
BE (1) BE1007885A6 (it)
IT (1) IT1256226B (it)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3165390B2 (ja) * 1997-04-03 2001-05-14 ソニーケミカル株式会社 耐久性フォトクロミックフィルム
JP4568027B2 (ja) * 2003-07-17 2010-10-27 パイロットインキ株式会社 フォトクロミック材料
WO2008043853A2 (en) * 2006-10-12 2008-04-17 Opco Gmbh Photochromic film

Also Published As

Publication number Publication date
BE1007885A6 (fr) 1995-11-14
ITMI922937A0 (it) 1992-12-23
ITMI922937A1 (it) 1994-06-23

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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: 19961217