Title:
LEAD-FREE LOW-MELTING GLASS
Document Type and Number:
WIPO Patent Application WO/2008/007596
Kind Code:
A1
Abstract:
Provided is a transparent and insulating SiO2-B2O3-ZnO-R2O-BaO-ZrO2-CuO lead-free low-melting glass. The lead-free low-melting glass includes a SiO2 of 25-40wt%, a B2O3 of 35-55wt%, a ZnO of 5-12wt%, a R2O(Li2O+Na2O+K2O) of 10-18wt%, a BaO of 0.1-3wt%, a ZrO2 of 0.1-7wt%, and a CuO of 0.1-2wt%. Yellowing due to silver reaction can be suppressed and a high visible light transmissivity can be obtained by using the lead-free low-melting glass.
Inventors:
NAKAI NOBUYUKI
SHIMOOKA TAISHIN
SHIMOOKA TAISHIN
Application Number:
PCT/JP2007/063418
Publication Date:
January 17, 2008
Filing Date:
July 05, 2007
Export Citation:
Assignee:
CENTRAL GLASS CO LTD (JP)
NAKAI NOBUYUKI
SHIMOOKA TAISHIN
NAKAI NOBUYUKI
SHIMOOKA TAISHIN
International Classes:
C03C8/12; C03C8/16; H01J11/22; H01J11/34; H01J11/38; H01J11/46; H01J11/48
Domestic Patent References:
| WO2003045864A1 | 2003-06-05 |
Foreign References:
| JP2006117440A | 2006-05-11 | |||
| JP2006151763A | 2006-06-15 | |||
| JP2006169047A | 2006-06-29 | |||
| JPH11157867A | 1999-06-15 | |||
| JPH11106234A | 1999-04-20 | |||
| JP2005343730A | 2005-12-15 |
Attorney, Agent or Firm:
HASHIMOTO, Takeshi et al. (Ekisaikai Bldg. 1-29, Akashi-cho, Chuo-k, Tokyo 44, JP)
Download PDF:
Previous Patent: FLUORINE-CONTAINING COMPOUND HAVING HIGHLY FLUORINATED NORBORNANE STRUCTURE, FLUORINE-CONTAINING POL...
Next Patent: ANALYSIS SYSTEM
Next Patent: ANALYSIS SYSTEM