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1. (WO2018038059) ALKALI-FREE GLASS
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Pub. No.: WO/2018/038059 International Application No.: PCT/JP2017/029817
Publication Date: 01.03.2018 International Filing Date: 21.08.2017
IPC:
C03C 3/087 (2006.01) ,C03C 3/091 (2006.01) ,C03C 3/093 (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
076
with 40% to 90% silica by weight
083
containing aluminium oxide or an iron compound
085
containing an oxide of a divalent metal
087
containing calcium oxide, e.g. common sheet or container glass
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
089
containing boron
091
containing aluminium
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
089
containing boron
091
containing aluminium
093
containing zinc or zirconium
Applicants:
AGC株式会社 AGC INC. [JP/JP]; 東京都千代田区丸の内一丁目5番1号 5-1, Marunouchi 1-chome, Chiyoda-ku, Tokyo 1008405, JP
Inventors:
徳永 博文 TOKUNAGA Hirofumi; JP
小野 和孝 ONO Kazutaka; JP
広瀬 元之 HIROSE Motoyuki; JP
Agent:
泉名 謙治 SENMYO Kenji; JP
小川 利春 OGAWA Toshiharu; JP
Priority Data:
2016-16267623.08.2016JP
Title (EN) ALKALI-FREE GLASS
(FR) VERRE NON ALCALIN
(JA) 無アルカリガラス
Abstract:
(EN) Provided is an alkali-free glass which has a low compaction, a high strain point, and a high ultraviolet light transmittance, and is easy to melt. The alkali-free glass is characterized by containing, in mol% on an oxide basis, 65-75 of SiO2, 9-15 of Al2O3, 0-3 of B2O3, 0-12 of MgO, 0-8 of CaO, 0-6 of SrO, and 0-5 of BaO, wherein MgO + CaO + SrO + BaO is 12-22, 4.84[Fe2O3] + 5.65[Na2O] + 4.03[K2O] + 4.55[SnO2] is 0.55 or less, and a measured compaction is 80 ppm or less.
(FR) L'invention concerne un verre non alcalin qui a un faible compactage, un point de contrainte élevé, et une transmittance élevée de la lumière ultraviolette, et qui est facile à fondre. Le verre non alcali est caractérisé en ce qu'il contient, en % en moles sur une base d'oxyde, 65-75 de SiO2, 9-15 d'Al2O3, 0-3 de B2O3, 0 à 12 de MgO, 0 à 8 de CaO, 0 à 6 de SrO, et 0 à 5 de BaO, MgO + CaO + SrO + BaO étant égal à 12 à 22, 4,84[Fe2O3] + 5,65[Na2O] + 4,03[K2O] + 4,55[SnO2] étant de 0,55 ou moins, et un compactage mesuré étant de 80 ppm ou moins.
(JA) コンパクションが小さく、歪点が高く、紫外線透過率が高く、かつ溶融が容易な無アルカリガラスの提供。 酸化物基準のモル%表示で SiO2  65~75、 Al23  9~15、 B23  0~3、 MgO  0~12、 CaO 0~8、 SrO  0~6、 BaO  0~5、 MgO+CaO+SrO+BaO が12~22であり、 4.84[Fe]+5.65[NaO]+4.03[KO]+4.55[SnO]が0.55以下であり、以下で測定されたコンパクションが、80ppm以下であることを特徴とする無アルカリガラス。
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, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, 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, ST, 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)