FR2357495A1 - Perfectionnements aux verres photochromes a aluminophosphate et cristaux d'halogenure d'argent - Google Patents

Perfectionnements aux verres photochromes a aluminophosphate et cristaux d'halogenure d'argent

Info

Publication number
FR2357495A1
FR2357495A1 FR7702367A FR7702367A FR2357495A1 FR 2357495 A1 FR2357495 A1 FR 2357495A1 FR 7702367 A FR7702367 A FR 7702367A FR 7702367 A FR7702367 A FR 7702367A FR 2357495 A1 FR2357495 A1 FR 2357495A1
Authority
FR
France
Prior art keywords
max
glass
al2o3
silver halide
spectacle lenses
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
FR7702367A
Other languages
English (en)
Other versions
FR2357495B1 (fr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pilkington Group Ltd
Original Assignee
Pilkington Brothers Ltd
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
Priority claimed from GB3814/76A external-priority patent/GB1515642A/en
Application filed by Pilkington Brothers Ltd filed Critical Pilkington Brothers Ltd
Publication of FR2357495A1 publication Critical patent/FR2357495A1/fr
Application granted granted Critical
Publication of FR2357495B1 publication Critical patent/FR2357495B1/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C21/00—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface
    • C03C21/001—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface in liquid phase, e.g. molten salts, solutions
    • C03C21/002—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface in liquid phase, e.g. molten salts, solutions to perform ion-exchange between alkali ions
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C3/00—Glass compositions
    • C03C3/04—Glass compositions containing silica
    • C03C3/062—Glass compositions containing silica with less than 40% silica by weight
    • C03C3/064—Glass compositions containing silica with less than 40% silica by weight containing boron
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C4/00—Compositions for glass with special properties
    • C03C4/04—Compositions for glass with special properties for photosensitive glass
    • C03C4/06—Compositions for glass with special properties for photosensitive glass for phototropic or photochromic glass

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Glass Compositions (AREA)
  • Eyeglasses (AREA)

Abstract

Verres photochromes aux aluminophosphates, à réponse rapide, comportant des cristaux d'halogénure d'argent dispersés dans toute leur masse. Ils contiennent en poids : SiO2 , 8,5 à 25 %; Al2 O3 , 13 à 36,5 %; P2 O5 , 7,5 à 33,5 %; B2 O3 , 7 à 28 %; R2 O, 7 à 20,5 %; où R2 O représente, isolément ou en combinaison, Na2 O, K2 O et Li2 O, la teneur maximale en Li2 O étant de 5 % la teneur en SiO 2 n'étant pas inférieure à 16 % quand celle en B 2 O3 est inférieure à 8 %; et la teneur en argent du verre, exprimée en Ag2 O, n'étant pas inférieure à 0,05 % en poids. Application notamment aux verres ophtalmiques.
FR7702367A 1976-01-30 1977-01-28 Perfectionnements aux verres photochromes a aluminophosphate et cristaux d'halogenure d'argent Granted FR2357495A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB3814/76A GB1515642A (en) 1976-01-30 1976-01-30 Photochromic glasses
GB1441576 1976-04-08

Publications (2)

Publication Number Publication Date
FR2357495A1 true FR2357495A1 (fr) 1978-02-03
FR2357495B1 FR2357495B1 (fr) 1982-04-16

Family

ID=26238614

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7702367A Granted FR2357495A1 (fr) 1976-01-30 1977-01-28 Perfectionnements aux verres photochromes a aluminophosphate et cristaux d'halogenure d'argent

Country Status (22)

Country Link
JP (1) JPS52110715A (fr)
AR (1) AR214873A1 (fr)
AU (1) AU509106B2 (fr)
BR (1) BR7700546A (fr)
CA (1) CA1092876A (fr)
CS (1) CS205067B2 (fr)
DD (1) DD128804A5 (fr)
DE (1) DE2703916A1 (fr)
DK (1) DK39477A (fr)
ES (1) ES455485A1 (fr)
FR (1) FR2357495A1 (fr)
HK (1) HK7079A (fr)
IE (1) IE44592B1 (fr)
IL (1) IL51352A (fr)
IN (1) IN145716B (fr)
IT (1) IT1082725B (fr)
LU (1) LU76671A1 (fr)
MX (1) MX3963E (fr)
NL (1) NL7700902A (fr)
NZ (1) NZ183180A (fr)
PH (1) PH14228A (fr)
SE (1) SE414166B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2463102A1 (fr) * 1979-08-09 1981-02-20 Pilkington Brothers Ltd Procede de fabrication de verre photochrome
US10550029B2 (en) 2015-12-17 2020-02-04 Corning Incorporated Ion exchangeable glass with fast diffusion

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4190451A (en) * 1978-03-17 1980-02-26 Corning Glass Works Photochromic glass
WO2020000097A1 (fr) * 2018-06-29 2020-01-02 University Of Manitoba Augmentation de la solubilité du molybdène et du soufre dans des verres aluminoborosilicatés avec addition de phosphore
CN112979161A (zh) * 2021-03-10 2021-06-18 昆明理工大学 一种基于光致变色效应的钨磷酸盐玻璃制备方法及其应用

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2463102A1 (fr) * 1979-08-09 1981-02-20 Pilkington Brothers Ltd Procede de fabrication de verre photochrome
US10550029B2 (en) 2015-12-17 2020-02-04 Corning Incorporated Ion exchangeable glass with fast diffusion
US11932577B2 (en) 2015-12-17 2024-03-19 Corning Incorporated Ion exchangeable glass with fast diffusion

Also Published As

Publication number Publication date
MX3963E (es) 1981-10-16
DE2703916A1 (de) 1977-08-04
JPS569465B2 (fr) 1981-03-02
NL7700902A (nl) 1977-08-02
IN145716B (fr) 1978-12-02
IL51352A0 (en) 1977-03-31
AU509106B2 (en) 1980-04-17
DD128804A5 (de) 1977-12-14
CS205067B2 (en) 1981-04-30
IE44592L (en) 1977-07-30
PH14228A (en) 1981-04-09
AU2164777A (en) 1978-08-03
CA1092876A (fr) 1981-01-06
BR7700546A (pt) 1977-10-04
IE44592B1 (en) 1982-01-27
ES455485A1 (es) 1978-06-01
SE414166B (sv) 1980-07-14
AR214873A1 (es) 1979-08-15
NZ183180A (en) 1979-03-16
IT1082725B (it) 1985-05-21
DK39477A (da) 1977-07-31
IL51352A (en) 1981-07-31
FR2357495B1 (fr) 1982-04-16
JPS52110715A (en) 1977-09-17
HK7079A (en) 1979-02-16
LU76671A1 (fr) 1977-06-27
SE7700997L (sv) 1977-07-31

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