GB1386784A - Treatment of glass - Google Patents
Treatment of glassInfo
- Publication number
- GB1386784A GB1386784A GB977471A GB977471A GB1386784A GB 1386784 A GB1386784 A GB 1386784A GB 977471 A GB977471 A GB 977471A GB 977471 A GB977471 A GB 977471A GB 1386784 A GB1386784 A GB 1386784A
- Authority
- GB
- United Kingdom
- Prior art keywords
- glass
- active material
- fluidized
- bed temperature
- article
- 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.)
- Expired
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
- C03C21/007—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface in gaseous 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
- C03C23/00—Other surface treatment of glass not in the form of fibres or filaments
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)
- Surface Treatment Of Glass (AREA)
Abstract
1386784 Strengthening glass UNITED GLASS Ltd 19 July 1972 [19 April 1971] 9774/71 Heading C1M A glass article is strengthened by immersion in a fluidized bed, the fluidized material comprising a solid inert material and an active material at least a proportion of which is in vapour form at the bed temperature, the fluidized bed temperature being below the softening point of the glass but not less than 100‹ C. below the strain point, the article being brought to not more than 50‹ C. below the bed temperature before immersion, and causing the active material to react with the glass. The active material may be boric acid or an organic borate; or may be an ion-exchange material, e.g. CuCl, LiCl or KCl. The inert material, which preferably constitutes 90-99À9% by weight of the fluidized material, may be silicon carbide, tungsten, molybdenum, nickel, talc or zirconia. The active material may be coated on or mixed with the inert material. The fluidizing gas may be air, nitrogen, carbon monoxide or helium. Carbon may be mixed with the active material to maintain the gas non-oxidizing. The glass article, which may be a sheet or hollow, necked container, may be annealed after the strengthening.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB977471A GB1386784A (en) | 1971-04-19 | 1971-04-19 | Treatment of glass |
| FR7235039A FR2201264A1 (en) | 1971-04-19 | 1972-10-03 | |
| DE19722248433 DE2248433A1 (en) | 1971-04-19 | 1972-10-03 | PROCESS FOR IMPROVING THE STRENGTH OF GLASS OBJECTS |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB977471A GB1386784A (en) | 1971-04-19 | 1971-04-19 | Treatment of glass |
| FR7235039A FR2201264A1 (en) | 1971-04-19 | 1972-10-03 | |
| DE19722248433 DE2248433A1 (en) | 1971-04-19 | 1972-10-03 | PROCESS FOR IMPROVING THE STRENGTH OF GLASS OBJECTS |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1386784A true GB1386784A (en) | 1975-03-12 |
Family
ID=27184758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB977471A Expired GB1386784A (en) | 1971-04-19 | 1971-04-19 | Treatment of glass |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE2248433A1 (en) |
| FR (1) | FR2201264A1 (en) |
| GB (1) | GB1386784A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4290793A (en) | 1978-12-08 | 1981-09-22 | Liberty Glass Company | Fluid bed chemical strengthening of glass objects |
| GB2171990A (en) * | 1985-03-08 | 1986-09-10 | Central Glass Co Ltd | Method of strengthening glass article formed of float glass by ion exchange and strengthened glass article |
-
1971
- 1971-04-19 GB GB977471A patent/GB1386784A/en not_active Expired
-
1972
- 1972-10-03 DE DE19722248433 patent/DE2248433A1/en active Pending
- 1972-10-03 FR FR7235039A patent/FR2201264A1/fr not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4290793A (en) | 1978-12-08 | 1981-09-22 | Liberty Glass Company | Fluid bed chemical strengthening of glass objects |
| GB2171990A (en) * | 1985-03-08 | 1986-09-10 | Central Glass Co Ltd | Method of strengthening glass article formed of float glass by ion exchange and strengthened glass article |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2201264A1 (en) | 1974-04-26 |
| DE2248433A1 (en) | 1974-04-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |