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1. (WO2014203481) GLASS COMPOSITION, CHEMICALLY STRENGTHENED GLASS, AND GLASS SUBSTRATE FOR INFORMATION-RECORDING MEDIUM
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2014/203481 International Application No.: PCT/JP2014/002957
Publication Date: 24.12.2014 International Filing Date: 03.06.2014
IPC:
C03C 3/087 (2006.01) ,C03C 3/085 (2006.01) ,C03C 21/00 (2006.01) ,G11B 5/73 (2006.01) ,G11B 5/84 (2006.01)
Applicants: NIPPON SHEET GLASS COMPANY, LIMITED[JP/JP]; 5-27, Mita 3-chome, Minato-ku, Tokyo 1086321, JP
Inventors: KURACHI, Junji; JP
SENSHU, Yutaka; JP
Agent: KAMADA, Koichi; JP
Priority Data:
2013-12925020.06.2013JP
Title (EN) GLASS COMPOSITION, CHEMICALLY STRENGTHENED GLASS, AND GLASS SUBSTRATE FOR INFORMATION-RECORDING MEDIUM
(FR) COMPOSITION DE VERRE, VERRE TREMPÉ CHIMIQUEMENT, ET SUBSTRAT DE VERRE POUR SUPPORT D'ENREGISTREMENT D'INFORMATIONS
(JA) ガラス組成物、化学強化ガラス、及び情報記録媒体用ガラス基板
Abstract:
(EN) The present invention provides a glass composition which comprises, in mass%, 59.0-63.0% SiO2, 4.0-10.0% TiO2, 8.0-12.0% Al2O3, 1.0-5.0% MgO, 0-4.0% CaO, 4.0-14.0% SrO, 4.0-11.0% Na2O, and 0-1.0% K2O. The glass composition can have excellent heat resistance, is suitable for production by the float process, and is suitable for chemical strengthening.
(FR) La présente invention concerne une composition de verre qui comprend, en % en masse, 59,0 à 63,0 % de SiO2, 4,0 à 10,0 % de TiO2, 8,0 à 12,0 % de Al2O3, 1,0 à 5,0 % de MgO, 0 à 4,0 % de CaO, 4,0 à 14,0 % de SrO, 4,0 à 11,0 % de Na2O, et 0 à 1,0 % de K2O. La composition de verre peut présenter une excellente résistance à la chaleur, convient à la production de verre flotté, et à la trempe chimique.
(JA)  本発明は、質量%で示して、SiO:59.0~63.0%、TiO:4.0~10.0%、Al:8.0~12.0%、MgO:1.0~5.0%、CaO:0~4.0%、SrO:4.0~14.0%、NaO:4.0~11.0%、KO:0~1.0%を含む、ガラス組成物を提供する。本発明によれば、耐熱性に優れ、フロート法による製造に適し、化学強化に適したガラス組成物を提供できる。
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)