Electrode-coating glass composition, coating for forming...

Details Electrode-coating glass composition, coating for forming... Electrode-coating glass composition, coating for forming...

2006-03-14

2006-03-14

Guharay, Karabi (Department: 2879)

Electric lamp and discharge devices

With gas or vapor

Three or more electrode discharge device

C313S582000, C313S635000, C428S432000, C428S469000

Reexamination Certificate

active

07012372

ABSTRACT:
An electrode-coating glass composition of the present invention satisfies −9.5≦A≦−4, 3000≦B≦3900 and 240≦C≦320 in Fulcher's equation logη=A+B/(T−C), which defines the temperature (T[° C.]) dependence of viscosity (η[dPa·s]). Furthermore, the absolute value |Δlogη| of the difference between values of logη at temperatures of 50° C. above and below a softening point is at least 4.2. Such an electrode-coating glass composition can be achieved, for example, by a glass composition containing at least one of BaO and Al2O3, and 40 to 66 wt % of PbO, 2 to 25 wt % of SiO2, 5 to 40 wt % of B2O3, 0 to 20 wt % of BaO, 0 to 8 wt % of Al2O3, 0 to 2 wt % of CuO, and 0 to 2 wt % of CeO2.

REFERENCES:
patent: 4288250 (1981-09-01), Yamashita
patent: 6439943 (2002-08-01), Aoki et al.
patent: 6497962 (2002-12-01), Fujimine et al.
patent: 6635193 (2003-10-01), Fukushima et al.
patent: 11-21148 (1999-01-01), None
patent: 2001-31446 (2001-02-01), None

Affiliated with

Also associated with

Rating

Electrode-coating glass composition, coating for forming... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electrode-coating glass composition, coating for forming..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electrode-coating glass composition, coating for forming... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3591611