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1. (WO1990015782) LEAD-FREE GLASS
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/1990/015782 International Application No.: PCT/US1989/002847
Publication Date: 27.12.1990 International Filing Date: 21.06.1989
Chapter 2 Demand Filed: 19.12.1990
IPC:
C03C 3/064 (2006.01) ,C03C 3/066 (2006.01) ,C03C 3/115 (2006.01) ,C03C 8/06 (2006.01) ,C03C 8/14 (2006.01)
C CHEMISTRY; METALLURGY
03
GLASS; MINERAL OR SLAG WOOL
C
CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
3
Glass compositions
04
containing silica
062
with less than 40% silica by weight
064
containing boron
C CHEMISTRY; METALLURGY
03
GLASS; MINERAL OR SLAG WOOL
C
CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
3
Glass compositions
04
containing silica
062
with less than 40% silica by weight
064
containing boron
066
containing zinc
C CHEMISTRY; METALLURGY
03
GLASS; MINERAL OR SLAG WOOL
C
CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
3
Glass compositions
04
containing silica
076
with 40% to 90% silica by weight
11
containing halogen or nitrogen
112
containing fluorine
115
containing boron
C CHEMISTRY; METALLURGY
03
GLASS; MINERAL OR SLAG WOOL
C
CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
8
Enamels; Glazes; Fusion seal compositions being frit compositions having non-frit additions
02
Frit compositions, i.e. in a powdered or comminuted form
06
containing halogen
C CHEMISTRY; METALLURGY
03
GLASS; MINERAL OR SLAG WOOL
C
CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
8
Enamels; Glazes; Fusion seal compositions being frit compositions having non-frit additions
14
Glass frit mixtures having non-frit additions, e.g. opacifiers, colorants, mill additions
Applicants: ROBERTS, Gordon, J.[GB/US]; US (UsOnly)
FERRO CORPORATION[US/US]; 1000 Lakeside Avenue Cleveland, OH 44114, US (AllExceptUS)
Inventors: ROBERTS, Gordon, J.; US
Agent: DUCHEZ, Neil, A.; Renner, Otto, Boisselle & Sklar 19th floor 1621 Euclid Avenue Cleveland, OH 44115, US
LELKES, Robert, S.; Renner, Otto, Boisselle & Sklar 1621 Euclid Avenue 19th Floor Cleveland, OH 44115, US
Priority Data:
Title (EN) LEAD-FREE GLASS
(FR) VERRE SANS PLOMB
Abstract:
(EN) A lead-free glass composition comprising: from about 30 % to about 51 % by weight silicon dioxide, from about 19 % to about 50 % by weight boron oxide, from about 2 % to about 20 % by weight zirconium oxide, up to 14 % by weight sodium oxide, up to about 6 % by weight potassium oxide, up to about 19 % by weight zinc oxide, and up to about 5 % by weight lithium oxide; and from about 2 to about 8 parts by weight fluorine per 100 parts of the other components in said composition. Additionally, up to about 8 % by weight barium oxide and up to about 4 % by weight titanium dioxide can be added to the foregoing glass composition.
(FR) La composition de verre sans plomb décrite comprend: environ 30 à environ 51 % en poids de dioxyde de silicium, environ 19 à environ 51 % en poids d'oxyde de bore, environ 2 à environ 20 % en poids d'oxyde de zirconium, jusqu'à 14 % en poids d'oxyde de sodium, jusqu'à environ 6 % en poids d'oxyde de potassium, jusqu'à environ 19 % en poids d'oxyde de zinc et jusqu'à environ 5 % en poids d'oxyde de lithium, ainsi qu'environ 2 à 8 parties en poids de fluore par 100 parties des autres constituants de ladite composition. En outre, jusqu'à environ 8 % en poids d'oxyde de barium et jusqu'à environ 4 % en poids de dioxyde de titane peuvent être ajoutés à ladite composition de verre.
Designated States: AT, AU, BB, BG, BR, CH, DE, DK, FI, GB, HU, JP, KP, KR, LK, LU, MC, MG, MW, NL, NO, RO, SD, SE, SU, US
European Patent Office (EPO) (AT, BE, CH, DE, FR, GB, IT, LU, NL, SE)
Publication Language: English (EN)
Filing Language: English (EN)