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1. (WO1996006052) OPAL GLASS
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1996/006052    International Application No.:    PCT/SE1995/000948
Publication Date: 29.02.1996 International Filing Date: 21.08.1995
Chapter 2 Demand Filed:    05.12.1995    
IPC:
C03C 3/097 (2006.01), C03C 4/00 (2006.01)
Applicants: GLASFORSKNINGSINSTITUTET [SE/SE]; P.O. Box 3093, S-350 33 Växjö (SE) (For All Designated States Except US).
JONSON, Bo [SE/SE]; (SE) (For US Only).
JOHANSSON, Lars, Gunnar [SE/SE]; (SE) (For US Only)
Inventors: JONSON, Bo; (SE).
JOHANSSON, Lars, Gunnar; (SE)
Agent: AWAPATENT AB; P.O. Box 5117, S-200 71 Malmö (SE)
Priority Data:
9402832-1 24.08.1994 SE
Title (EN) OPAL GLASS
(FR) VERRE OPALE
Abstract: front page image
(EN)Fluorine-free opal glass has the following composition, based on the oxides of the ingredients: 55-65 % by weight of SiO¿2?, 2-6 % by weight of Al¿2?O¿3?, 10-17 % by weight of Na¿2?O, 2-10 % by weight of CaO, 0.1-6 % by weight of BaO, 0.1-6 % by weight of ZnO, 1-8 % by weight of B¿2?O¿3?, 4-12 % by weight of P¿2?O¿5?, 0.1-3 % by weight of Li¿2?O, 0.1-3 % by weight of Sb¿2?O¿3?, 0-4 % by weight of MgO, the total of the weight quantities of the ingredients amounting to 100 %. In the temperature range of 20-300 °C, the opal glass has a thermal expansion coefficient of 8-11 x 10?-6¿ °C?-1¿, enabling it to be combined with some other translucent glass, such as clear glass, and be melted in electrically-heated furnaces.
(FR)Un verre opale exempt de fluor contient les composants suivants sous forme d'oxydes et calculés en poids: 55-65 % de SiO¿2?; 2-6 % de Al¿2?O¿3?; 10-17 % de Na¿2?O; 2-10 % de CaO; 0,1-6 % de BaO; 0,1-6 % de ZnO; 1-8 % de B¿2?O¿3?; 4-12 % de P¿2?O¿5?; 0,1-3 % de Li¿2?O; 0,1-3 % de Sb¿2?O¿3?; 0-4 % de MgO, ces quantités totales en poids des composants, représentant 100 %. Dans la fourchette de températures de 20 à 300 °C, le verre opale présente un coefficient d'expansion thermique de 8 à 11 x 10?-6¿ °C?-1¿, ce qui lui permet de se combiner à d'autres verres translucides tels que du verre clair et de fondre dans les fours électriques.
Designated States: AM, AT, AU, BB, BG, BR, BY, CA, CH, CN, CZ, DE, DK, EE, ES, FI, GB, GE, HU, IS, JP, KE, KG, KP, KR, KZ, LK, LR, LT, LU, LV, MD, MG, MK, MN, MW, MX, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, TJ, TM, TT, UA, UG, US, UZ, VN.
African Regional Intellectual Property Organization (KE, MW, SD, SZ, UG)
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: Swedish (SV)