FR2557870A2 - Coloured vitreous ceramic and process for its manufacture - Google Patents
Coloured vitreous ceramic and process for its manufacture Download PDFInfo
- Publication number
- FR2557870A2 FR2557870A2 FR8400349A FR8400349A FR2557870A2 FR 2557870 A2 FR2557870 A2 FR 2557870A2 FR 8400349 A FR8400349 A FR 8400349A FR 8400349 A FR8400349 A FR 8400349A FR 2557870 A2 FR2557870 A2 FR 2557870A2
- Authority
- FR
- France
- Prior art keywords
- sep
- weight
- ceramic
- vitreous ceramic
- main patent
- 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
Links
- 239000000919 ceramic Substances 0.000 title claims abstract description 6
- 238000000034 method Methods 0.000 title description 2
- 238000004519 manufacturing process Methods 0.000 title 1
- 239000000203 mixture Substances 0.000 claims abstract description 5
- 239000012535 impurity Substances 0.000 claims abstract description 4
- 239000006071 cream Substances 0.000 claims abstract 2
- 239000002241 glass-ceramic Substances 0.000 claims description 12
- CNLWCVNCHLKFHK-UHFFFAOYSA-N aluminum;lithium;dioxido(oxo)silane Chemical compound [Li+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O CNLWCVNCHLKFHK-UHFFFAOYSA-N 0.000 claims description 2
- 229910052644 β-spodumene Inorganic materials 0.000 claims description 2
- 239000011521 glass Substances 0.000 claims 2
- 239000006104 solid solution Substances 0.000 claims 1
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 abstract description 8
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract description 4
- 238000010411 cooking Methods 0.000 abstract 1
- QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical compound O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 description 13
- 230000000694 effects Effects 0.000 description 3
- 238000002468 ceramisation Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- PLDDOISOJJCEMH-UHFFFAOYSA-N neodymium oxide Inorganic materials [O-2].[O-2].[O-2].[Nd+3].[Nd+3] PLDDOISOJJCEMH-UHFFFAOYSA-N 0.000 description 2
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
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
- C03C4/00—Compositions for glass with special properties
- C03C4/02—Compositions for glass with special properties for coloured glass
-
- 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
- C03C1/00—Ingredients generally applicable to manufacture of glasses, glazes, or vitreous enamels
- C03C1/10—Ingredients generally applicable to manufacture of glasses, glazes, or vitreous enamels to produce uniformly-coloured transparent products
-
- 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
-
- 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
- C03C10/0018—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 containing SiO2, Al2O3 and monovalent metal oxide as main constituents
- C03C10/0027—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 containing SiO2, Al2O3 and monovalent metal oxide as main constituents containing SiO2, Al2O3, Li2O as main constituents
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Ceramic Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Glass Compositions (AREA)
Abstract
Description
La présente invention vise, comme le brevet principal, des vitrocéramiques nucléées avec une quantité effective de Ti02 allant jusqu'à 6% en poids et caractérisées par une teneur respective de 0,001-0,01% en poids de CoO et de Cr203, la teneur cumulée de CoO + Cor203 se situant entre 0,0025 et 0,02% en poids. The present invention aims, like the main patent, with nucleated glass ceramics with an effective amount of TiO 2 of up to 6% by weight and characterized by a respective content of 0.001-0.01% by weight of CoO and Cr 2 O 3, the content cumulative amount of CoO + Cor203 between 0.0025 and 0.02% by weight.
Le brevet principal couvre des compositions pouvant contenir jusqu'à 0,15% en poids de Fe203 à titre d'impuretés susceptibles de modifier la couleur. Gr la
Demanderesse a pu déterminer qu'il était possible, en jouant sur les teneurs en CoO et en Cr2O3 dans les limites ainsi définies, de confiner la couleur dans le polygone de couleur désiré, malgré de plus fortes teneurs en Fe203 pouvant dépasser les 0,2% et aussi malgré de notables quantités de MnO2 pouvant aller jusqu'à 0,1%.The main patent covers compositions which may contain up to 0.15% by weight of Fe 2 O 3 as impurities which may change the color. Gr
Applicant has been able to determine that it was possible, by playing on the contents of CoO and Cr2O3 within the limits thus defined, to confine the color in the polygon of desired color, despite higher levels of Fe203 may exceed 0.2 % and also despite significant amounts of MnO2 up to 0.1%.
Comme on le voit sur le Tableau I ci-apres et sur la figure 1 ci-annexée (où les exemples ont été numérotés à partir du chiffre 18, les exemples donnés dans le brevet principal étant au nombre de 17), ces deux derniers oxydes modifient la couleur, mais on peut compenser cette modification par des variations judicieuses de la somme CoO + Cr203 ou du rapport CoO/Cr203. As seen in Table I below and in Figure 1 attached (where the examples were numbered from the number 18, the examples given in the main patent being 17), the latter two oxides change the color, but we can compensate for this change by judicious variations of the sum CoO + Cr203 or the ratio CoO / Cr203.
TABLEAU I
coordonnées <SEP> trichromatiques
<tb> Exemple <SEP> n <SEP> CoO <SEP> Cr2O3 <SEP> Fe2O3 <SEP> MnO2 <SEP> x <SEP> y <SEP> Y
<tb> 18 <SEP> 0,005 <SEP> 0,005 <SEP> 0,142 <SEP> 0,015 <SEP> 0,3446 <SEP> 0,3508 <SEP> 67,6
<tb> 19 <SEP> 0,005 <SEP> 0,005 <SEP> 0,202 <SEP> 0,015 <SEP> 0,3494 <SEP> 0,3552 <SEP> 63,0
<tb> 20 <SEP> 0,005 <SEP> 0,002 <SEP> 0,142 <SEP> 0,015 <SEP> 0,3351 <SEP> 0,3393 <SEP> 72,8
<tb> 21 <SEP> 0,004 <SEP> 0,002 <SEP> 0,212 <SEP> 0,015 <SEP> 0,3375 <SEP> 0,3412 <SEP> 72,1
<tb> 22 <SEP> 0,004 <SEP> 0,004 <SEP> 0,062 <SEP> 0,015 <SEP> 0,3346 <SEP> 0,3415 <SEP> 74,1
<tb> 23 <SEP> 0,004 <SEP> 0,004 <SEP> 0,062 <SEP> 0,035 <SEP> 0,3356 <SEP> 0,3431 <SEP> 72,1
<tb> 24 <SEP> 0,004 <SEP> 0,004 <SEP> 0,062 <SEP> 0,095 <SEP> 0,3373 <SEP> 0,3445 <SEP> 71,3
<tb> 25 <SEP> 0,004 <SEP> 0,0035 <SEP> 0,062 <SEP> 0,095 <SEP> 0,3344 <SEP> 0,3405 <SEP> 73,5
<tb> 26 <SEP> 0,004 <SEP> 0,0030 <SEP> 0,062 <SEP> 0,095 <SEP> 0,3332 <SEP> 0,3385 <SEP> 73,1
<tb>
La comparaison des exemples Noso 18 et 19 avec l'exemple No. 4 du brevet principal fait ressortir l'effet de quantités plus élevées de ces deux oxydes pouvant même dépasser 0,2%, tandis que les exemples
Nos. 20 et 21 montrent que cet effet peut être compénsé par variation de CoO et surtout de Cr2O3.<SEP> trichromatic coordinates
<tb> Example <SEP> n <SEP> CoO <SEP> Cr2O3 <SEP> Fe2O3 <SEP> MnO2 <SEP> x <SEP> y <SEP> Y
<tb> 18 <SEP> 0.005 <SEP> 0.005 <SEP> 0.142 <SEP> 0.015 <SEP> 0.3446 <SEP> 0.3508 <SEP> 67.6
<tb> 19 <SEP> 0.005 <SEP> 0.005 <SEP> 0.202 <SEP> 0.015 <SEP> 0.3494 <SEP> 0.3552 <SEP> 63.0
<tb> 20 <SEP> 0.005 <SEP> 0.002 <SEP> 0.142 <SEP> 0.015 <SEP> 0.3351 <SEP> 0.3393 <SEP> 72.8
<tb> 21 <SEP> 0.004 <SEP> 0.002 <SEP> 0.212 <SEP> 0.015 <SEP> 0.3375 <SEP> 0.3412 <SEP> 72.1
<tb> 22 <SEP> 0.004 <SEP> 0.004 <SEP> 0.062 <SEP> 0.015 <SEP> 0.3346 <SEP> 0.3415 <SEP> 74.1
<tb> 23 <SEP> 0.004 <SEP> 0.004 <SEP> 0.062 <SEP> 0.035 <SEP> 0.3356 <SEP> 0.3431 <SEP> 72.1
<tb> 24 <SEP> 0.004 <SEP> 0.004 <SEP> 0.062 <SEP> 0.095 <SEP> 0.3373 <SEP> 0.3445 <SEP> 71.3
<tb> 25 <SEP> 0.004 <SEP> 0.0035 <SEP> 0.062 <SEP> 0.095 <SEP> 0.3344 <SEP> 0.3405 <SEP> 73.5
<tb> 26 <SEP> 0.004 <SEP> 0.0030 <SEP> 0.062 <SEP> 0.095 <SEP> 0.3332 <SEP> 0.3385 <SEP> 73.1
<Tb>
Comparison of Nos. Nos. 18 and 19 with Example No. 4 of the main patent shows the effect of higher amounts of these two oxides possibly exceeding 0.2%, while the examples
Our. 20 and 21 show that this effect can be compenSé by variation of CoO and especially Cr2O3.
La comparaison des exemples Nos. 23 et 24 avec l'exemple No. 12 du brevet principal fait ressortir l'effet de MnO2, tandis que les exemples Nos. 25 et 26 montrent qu'une diminution de Cr2O3 peut le compenser. Comparison of examples Nos. 23 and 24 with the example No. 12 of the main patent brings out the effect of MnO2, while Examples Nos. 25 and 26 show that a decrease in Cr2O3 can compensate for it.
Il est rappelé que le brevet principal a par ailleurs également pour objet des vitrocéramiques transparentes appartenant au système Li20 - Al203 - SiO2 et obtenues par un traitement thermique aux alentours de 9000 C. Selon une particularité technique de la présente invention, on peut céramiser ces vitrocéramiques transparentes pour les rendre opaques par un traitement thermique aux alentours de 1100-11500C propre à développer une cristallisation à ss-spodumène, tout en conservant une couleur considérée comme plaisante pour l'usager
Ainsi serait conférée la faculté d'obtenir à son choix, à partir de la même composition, soit une vitrocéramique transparente en opérant vers les 9000C soit une vitrocéramique opaque en opérant vers les 1100-11500C. It is recalled that the main patent also relates to transparent glass ceramics belonging to the Li20-Al203-SiO2 system and obtained by a heat treatment at around 9000 C. According to a technical feature of the present invention, it is possible to ceramise these glass-ceramics. transparent to make them opaque by a heat treatment around 1100-11500C proper to develop a crystallization to ss-spodumene, while maintaining a color considered pleasant for the user
Thus would be conferred the faculty to obtain at its choice, from the same composition, either a transparent glass-ceramic operating towards the 9000C or an opaque glass-ceramic operating towards 1100-11500C.
Encore faudrait-il que la couleur obtenue dans un cas comme dans l'autre soit agréable à la clientèle.It would be necessary that the color obtained in one case as in the other is pleasant to the customers.
Or la vitrocéramique transparente teintée en marron clair avec du Nd203 ou du V205 donne, en devenant opaque par céramisation, une teinte bleu gris qui n'est pas plaisante. Pour litres il faudrait quelle soit légère- ment crème comme pour l'exemple No. 31 (voir tableau II ci-après et figure 2 ci-annexée) qui correspond à la couleur type de la verrerie dite"Corning Ware" fabriquée à partir de la vitrocéramique de désignation "Corning Code 9608". TABLEAU II
Durée
<tb> Exemle <SEP> Nd2O3 <SEP> V2O5 <SEP> CoO <SEP> Cr2O3 <SEP> Fe2O3 <SEP> Temp. <SEP> C <SEP> x <SEP> y <SEP> Y
<tb> n <SEP> min.
<tb>duration
<tb> Exemle <SEP> Nd2O3 <SEP> V2O5 <SEP> CoO <SEP> Cr2O3 <SEP> Fe2O3 <SEP> Temp. <SEP> C <SEP> x <SEP> y <SEP> Y
<tb> n <SEP> min.
<Tb>
31 <SEP> 0,3155 <SEP> 0,3220 <SEP> 0,780
<tb> 32 <SEP> 0,46 <SEP> 0,005 <SEP> 0,0675 <SEP> 1115 <SEP> 40 <SEP> 0,3081 <SEP> 0,3136 <SEP> 0,661
<tb> 33 <SEP> 0,46 <SEP> 0,005 <SEP> 0,0675 <SEP> 1140 <SEP> 24 <SEP> 0,3096 <SEP> 0,3155 <SEP> 0,690
<tb> 34 <SEP> 0 <SEP> 0,002 <SEP> 0,004 <SEP> 0,004 <SEP> 0,120 <SEP> 1140 <SEP> 24 <SEP> 0,3222 <SEP> 0,3285 <SEP> 0,656
<tb> 35 <SEP> 0 <SEP> 0,002 <SEP> 0,004 <SEP> 0,0045 <SEP> 0,075 <SEP> 1130 <SEP> 45 <SEP> 0,3193 <SEP> 0,3257 <SEP> 0,700
<tb> 36 <SEP> 0 <SEP> 0,002 <SEP> 0,0045 <SEP> 0,0045 <SEP> 0,110 <SEP> 1130 <SEP> 30 <SEP> 0,3176 <SEP> 0,3225 <SEP> 0,671
<tb> 37 <SEP> 0 <SEP> 0,002 <SEP> 0,004 <SEP> 0,004 <SEP> 0,075 <SEP> 1130 <SEP> 30 <SEP> 0,3145 <SEP> 0,3191 <SEP> 0,702
<tb> 38 <SEP> 0 <SEP> 0,0012 <SEP> 0,005 <SEP> 0,0055 <SEP> 0,082 <SEP> 1130 <SEP> 30 <SEP> 0,3132 <SEP> 0,3183 <SEP> 0,737
<tb>
Les exemples Nos. 32 et 33 indiquent la couleur d'échantillons céramisés à 11150C et à 11400C. Les coordonnées trichromatiques (x, y, Y) sont établies suivant la procédure normalisée de la C.I.E., comme précisé dans le brevet principal pour les vitrocéramiques transparentes, à ceci près que Y désigne le facteur de diffusion par réflexion et non pas le facteur de transmission.31 <SEP> 0.3155 <SEP> 0.3220 <SEP> 0.780
<tb> 32 <SEP> 0.46 <SEP> 0.005 <SEP> 0.0675 <SEP> 1115 <SEP> 40 <SEP> 0.3081 <SEP> 0.3136 <SEP> 0.661
<tb> 33 <SEP> 0.46 <SEP> 0.005 <SEP> 0.0675 <SEP> 1140 <SEP> 24 <SEP> 0.3096 <SEP> 0.3155 <SEP> 0.690
<tb> 34 <SEP> 0 <SEP> 0.002 <SEP> 0.004 <SEP> 0.004 <SEP> 0.120 <SEP> 1140 <SEP> 24 <SEP> 0.3222 <SEP> 0.3285 <SEP> 0.656
<tb> 35 <SEP> 0 <SEP> 0.002 <SEP> 0.004 <SEP> 0.0045 <SEP> 0.075 <SEP> 1130 <SEP> 45 <SEP> 0.3193 <SEP> 0.3257 <SEP> 0.700
<tb> 36 <SEP> 0 <SEP> 0.002 <SEP> 0.0045 <SEP> 0.0045 <SEP> 0.110 <SEP> 1130 <SEP> 30 <SEP> 0.3176 <SEP> 0.3225 <SEP > 0.671
<tb> 37 <SEP> 0 <SEP> 0.002 <SEP> 0.004 <SEP> 0.004 <SEP> 0.075 <SEP> 1130 <SEP> 30 <SEP> 0.3145 <SEP> 0.3191 <SEP> 0.702
<tb> 38 <SEP> 0 <SEP> 0.0012 <SEP> 0.005 <SEP> 0.0055 <SEP> 0.082 <SEP> 1130 <SEP> 30 <SEP> 0.3132 <SEP> 0.3183 <SEP > 0.737
<Tb>
Examples Nos. 32 and 33 indicate the color of ceramic samples at 11150C and 11400C. The trichromatic coordinates (x, y, Y) are established according to the standard procedure of the CIE, as specified in the main patent for transparent glass ceramics, except that Y denotes the reflection diffusion factor and not the transmission factor. .
La Demanderesse a pu constater qu?en céramisant la vitrocéramique transparente teintée marron clair avec du CrO et du Cr203 selon le brevet principal, pour la rendre opaque, la teinte obtenue se rapproche de celle de ltexemple No. 31. Les exemples Nos. 34 à 38 en indiquent les possibilités de réalisation sous diverses quantités d'impuretés et diverses procédures de céramisation. Le fait que le facteur de réflexion soit plus faible que dans l'exemple No. 31 est perçu comme étant "moins blanc", mais la différence est minime parce que la pureté et la longueur d'onde dominante sont pratiquement les mimes. The Applicant has found that by ceramizing the tinted transparent glass ceramic light brown with CrO and Cr203 according to the main patent, to make it opaque, the resulting hue approximates that of Example No. 31. Examples Nos. 34 to 38 indicate the possibilities of realization under various quantities of impurities and various ceramization procedures. The fact that the reflection factor is lower than in Example No. 31 is perceived as "less white", but the difference is minimal because the purity and the dominant wavelength are practically the same.
Claims (4)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8400349A FR2557870B2 (en) | 1984-01-11 | 1984-01-11 | COLORED VITROCERAMIC AND MANUFACTURING METHOD THEREOF |
| US06/582,277 US4526872A (en) | 1983-05-06 | 1984-02-22 | Transparent glass-ceramic of light brown color and method of making |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8400349A FR2557870B2 (en) | 1984-01-11 | 1984-01-11 | COLORED VITROCERAMIC AND MANUFACTURING METHOD THEREOF |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2557870A2 true FR2557870A2 (en) | 1985-07-12 |
| FR2557870B2 FR2557870B2 (en) | 1986-05-30 |
Family
ID=9300004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8400349A Expired FR2557870B2 (en) | 1983-05-06 | 1984-01-11 | COLORED VITROCERAMIC AND MANUFACTURING METHOD THEREOF |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2557870B2 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1474728A (en) * | 1964-07-31 | 1967-03-31 | Owens Illinois Inc | Astronomical telescope and products and process for their manufacture |
| NL6605388A (en) * | 1966-04-22 | 1967-10-23 | ||
| US4057434A (en) * | 1975-08-11 | 1977-11-08 | Corning Glass Works | Opaque infra-red transmitting glass-ceramic articles |
-
1984
- 1984-01-11 FR FR8400349A patent/FR2557870B2/en not_active Expired
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1474728A (en) * | 1964-07-31 | 1967-03-31 | Owens Illinois Inc | Astronomical telescope and products and process for their manufacture |
| NL6605388A (en) * | 1966-04-22 | 1967-10-23 | ||
| US4057434A (en) * | 1975-08-11 | 1977-11-08 | Corning Glass Works | Opaque infra-red transmitting glass-ceramic articles |
Non-Patent Citations (1)
| Title |
|---|
| CHEMICAL ABSTRACTS, vol. 68, no. 12, 18 mars 1968, réf. no. 52924c, page 5143, Columbus Ohio (US); & NL - A - 66 05 388 (N.V. PHILIPS' GLOEILAMPENFABRIEKEN) (23.10.1967) * |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2557870B2 (en) | 1986-05-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP7097783B2 (en) | Colored transparent lithium aluminum silicate glass ceramic and its use | |
| EP0821659B1 (en) | Colored glass compositions | |
| US6218323B1 (en) | Soda-lime-silicate glass composition | |
| US5747398A (en) | Neutral colored glass compositions | |
| US5278108A (en) | Neutral gray glass composition | |
| RU2396220C2 (en) | Green glass composition and its application | |
| JP5183600B2 (en) | Blue green glass | |
| US7297645B2 (en) | Opalescent glass-ceramic product | |
| WO2014132005A1 (en) | Glass-ceramic of lithium aluminosilicate type containing a solid solution of β-spodumene | |
| CA2422405A1 (en) | Transparent glass ceramics that can be darkened by adding vanadium oxide | |
| JPH1143352A (en) | Glazing of glass or glass ceramic and glass composition for ornament containing no lead and cadmium | |
| JP2013532622A (en) | Transparent or transparent colored lithium aluminum silicate glass-ceramic material having a suitable coefficient of thermal expansion and use thereof | |
| EP3191420A1 (en) | Vitroceramic plate | |
| FR2701020A1 (en) | Photochromic lenses that darken by taking a pink hue. | |
| CA2299202A1 (en) | Translucent or opaque glass-ceramic containing .beta.-quartz solid solution as the predominant crystal phase, and the use thereof in a cooking hob | |
| JPH1171131A (en) | Deep green soda lime glass | |
| GB2067548A (en) | Photochromic glasses which darken to a brown hue | |
| FR2787104A1 (en) | LOW VISIBILITY VITROCERAMIC COOKING PLATE | |
| US5070044A (en) | Brightly colored canasite glass-ceramics | |
| RU2129100C1 (en) | Lead-free glass, and glassware and decorative products therefrom | |
| FR2992311A1 (en) | GLASS CERAMIC AND PROCESS FOR PRODUCING THE SAME | |
| EP1003693A1 (en) | Ir and uv absorbing brown solar glasses, ophthalmic lenses | |
| JPH0867528A (en) | Colored borosilicate glass and its application | |
| JPH05193983A (en) | Transparent glass and glass goods | |
| US5387558A (en) | Colored glass-ceramic articles |