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Pub. No.:    WO/2007/001881    International Application No.:    PCT/US2006/023328
Publication Date: 04.01.2007 International Filing Date: 14.06.2006
C03C 3/089 (2006.01), C03C 3/112 (2006.01), C03C 4/00 (2006.01)
Applicants: CORNING INCORPORATED [US/US]; 1 Riverfront Plaza, Corning, New York 14831 (US) (For All Designated States Except US).
CORNELIUS, Lauren, K. [US/US]; (US) (For US Only).
ELLISON, Adam, J. [US/US]; (US) (For US Only)
Inventors: CORNELIUS, Lauren, K.; (US).
ELLISON, Adam, J.; (US)
Agent: SCHAEBERLE, Timothy, M.; Corning Incorporated, SP-TI-3-1, Corning, New York 14831 (US)
Priority Data:
60/694,498 28.06.2005 US
11/433,180 12.05.2006 US
Abstract: front page image
(EN)The present invention relates to a boroaluminosilicate glass which exhibits excellent UV transmission. In particular, the present invention is directed at an alkali fluorine-doped boroaluminosilicate glass comprising, in mole percent on the oxide basis, of 30-80 % SiO2, 1-20 % Al2(O, F2)3, 5-35 % B2O3, 5-20 % R2O, where R is Li, Na, K, Rb or Cs, and an amount of up to 12 % of F. The glass possesses an R/Al molar ratio of between 0.4 to 3 and an F/O molar ratio of no greater than 0.35. The alkali fluorine-doped boroaluminosilicate glass of the present invention exhibits a UV transmission at 300 nm, of greater than 80 %/mm.
(FR)L'invention concerne un verre de boroaluminosilicate permettant une excellente transmission d'UV. En particulier, l'invention concerne un verre de boroaluminosilicate dopé au fluor alcalin comprenant, en % molaire, sur la base d'oxyde: 30 à 80 % de SiO2, 1 à 20 % de Al2(O, F2)3, 5 à 35 % de B2O3, 5 à 20 % de R2O, R désignant Li, Na, K, Rb ou Cs, et une quantité allant jusqu'à 12 % de F. Le verre de l'invention présente un rapport molaire R/Al compris entre 0,4 et 3 et un rapport molaire F/O inférieur ou égal à 0,35. Le verre de boroaluminosilicate dopé au fluor alcalin de l'invention présente une transmission d'UV à 300 nm, supérieure ou égale à 80 %/mm.
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LV, LY, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IS, IT, LT, LU, LV, MC, NL, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)