GB1268845A

GB1268845A – Improvements in or relating to the manufacture of crystallized glass
– Google Patents

GB1268845A – Improvements in or relating to the manufacture of crystallized glass
– Google Patents
Improvements in or relating to the manufacture of crystallized glass

Info

Publication number
GB1268845A

GB1268845A
GB3465369A
GB3465369A
GB1268845A
GB 1268845 A
GB1268845 A
GB 1268845A
GB 3465369 A
GB3465369 A
GB 3465369A
GB 3465369 A
GB3465369 A
GB 3465369A
GB 1268845 A
GB1268845 A
GB 1268845A
Authority
GB
United Kingdom
Prior art keywords
glass
crystallized glass
july
hours
carrying
Prior art date
1968-07-29
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.)

Expired

Application number
GB3465369A
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.)

Nippon Electric Glass Co Ltd

Original Assignee
Nippon Electric Glass Co 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.)
1968-07-29
Filing date
1969-07-09
Publication date
1972-03-29

1969-07-09
Application filed by Nippon Electric Glass Co Ltd
filed
Critical
Nippon Electric Glass Co Ltd

1972-03-29
Publication of GB1268845A
publication
Critical
patent/GB1268845A/en

Status
Expired
legal-status
Critical
Current

Links

Espacenet

Global Dossier

Discuss

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

C03C3/00—Glass compositions

C03C3/04—Glass compositions containing silica

C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight

C03C3/11—Glass compositions containing silica with 40% to 90% silica, by weight containing halogen or nitrogen

C03C3/112—Glass compositions containing silica with 40% to 90% silica, by weight containing halogen or nitrogen containing fluorine

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

C03C10/00—Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition

C03C10/16—Halogen containing crystalline phase

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

C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight

C03C3/083—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound

C03C3/085—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound containing an oxide of a divalent metal

Abstract

1,268,845. Crystallized glass. NIPPON ELECTRIC GLASS CO. Ltd. 9 July, 1969 [29 July, 1968], No. 34653/69. Heading C1M. Crystallized glass is made from a glass comprising (in weight per cent) to an extent of at least 90%; SiO 2 55-73; Al 2 O 3 15-35; Li 2 O 2-6; ZrO 2 1-4; TiO 2 0À5-3; F 0.01-4; by carrying out a primary heat treatment for 0À5-20 hours between the transformation and softening temperatures of the glass, and then carrying out a secondary treatment by heating up to 850-1200‹ C. #-Encryptite is converted to #-Spodumene in the interior of the glass while remaining unchanged on the surface. The primary heat treatment may be at 700-770‹ C. The glass may be maintained at 850-1200‹ C. for 0-8 hours. The linear expansion coefficient of the crystallized glass is 7-30 x 10-7/‹ C., while the maximum bending strength is 1500- 6000 kg./cm.2. The surface compressive #- Eucryptite layer may be 50-100 Á thick.

GB3465369A
1968-07-29
1969-07-09
Improvements in or relating to the manufacture of crystallized glass

Expired

GB1268845A
(en)

Applications Claiming Priority (1)

Application Number
Priority Date
Filing Date
Title

JP5302768

1968-07-29

Publications (1)

Publication Number
Publication Date

GB1268845A
true

GB1268845A
(en)

1972-03-29

Family
ID=12931392
Family Applications (1)

Application Number
Title
Priority Date
Filing Date

GB3465369A
Expired

GB1268845A
(en)

1968-07-29
1969-07-09
Improvements in or relating to the manufacture of crystallized glass

Country Status (1)

Country
Link

GB
(1)

GB1268845A
(en)

Cited By (2)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

DE102016101066B3
(en)

*

2016-01-21
2017-02-23
Schott Ag

Process for the preparation of a preferably non-colored glass-ceramic material with low scattered light content and glass-ceramic material produced according to the process and its use

DE102016211065A1
(en)

2016-06-21
2017-12-21
Schott Ag

Transparent, preferably colored glass ceramic article with low scattered light content and high strength, as well as processes for its preparation and its use

1969

1969-07-09
GB
GB3465369A
patent/GB1268845A/en
not_active
Expired

Cited By (6)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

DE102016101066B3
(en)

*

2016-01-21
2017-02-23
Schott Ag

Process for the preparation of a preferably non-colored glass-ceramic material with low scattered light content and glass-ceramic material produced according to the process and its use

EP3196174A1
(en)

2016-01-21
2017-07-26
Schott AG
Method for the manufacture of a preferably not coloured glass-ceramic material with a reduced diffused light and a glass ceramic material produced according to said method and its use

DE102017101114A1
(en)

2016-01-21
2017-07-27
Schott Ag

Process for the preparation of a preferably non-colored glass-ceramic material with low scattered light content and glass-ceramic material produced according to the process and its use

DE102017101114B4
(en)

2016-01-21
2019-06-13
Schott Ag

Process for the preparation of a preferably non-colored glass-ceramic material with low scattered light content and glass-ceramic material produced according to the process and its use

DE102016211065A1
(en)

2016-06-21
2017-12-21
Schott Ag

Transparent, preferably colored glass ceramic article with low scattered light content and high strength, as well as processes for its preparation and its use

DE102016211065B4
(en)

2016-06-21
2019-09-05
Schott Ag

Transparent, preferably colored glass ceramic article with low scattered light content and high strength, as well as processes for its preparation and its use

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