Core glass in the alkali-zinc-silicate glass system for an...

Details Core glass in the alkali-zinc-silicate glass system for an... Core glass in the alkali-zinc-silicate glass system for an...

2008-12-19

2011-10-18

Lorengo, Jerry A (Department: 1731)

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

C501S072000, C385S141000, C385S142000, C385S144000, C385S123000

Reexamination Certificate

active

08039410

ABSTRACT:
A core glass and a fiber-optic light guide made from it and a cladding glass are described. The core glass is in the alkali-zinc-silicate system and contains, in Mol % on an oxide basis: 54.5-65, SiO2; 18.5-30, ZnO; 8-20, Σ alkali metal oxides; 0.5-3, La2O3; 2-5, ZrO2; 0.02-5, HfO2; 2.02-5, Σ ZrO2+HfO2; 0.4-6, BaO; 0-6, SrO; 0-2, MgO; 0-2, CaO; 0.4-6, Σ alkaline earth metal oxides; 0.5-3, Li2O, but no more Li2O than 25% of the Σ alkali metal oxides; >58.5, Σ SiO2+ZrO2+HfO2. A molar ratio of Na2O/K2O is from 1/1.1 to 1/0.3. A molar ratio of ZnO to BaO is greater than 3.5.

REFERENCES:
patent: 4894303 (1990-01-01), Wu
patent: 5033815 (1991-07-01), Edahiro et al.
patent: 5137850 (1992-08-01), Clement et al.
patent: 5285517 (1994-02-01), Wu
patent: 7169470 (2007-01-01), Wolff et al.
patent: 2009/0067792 (2009-03-01), Curdt et al.
patent: 1 452 495 (2004-09-01), None
patent: 2-293346 (1990-12-01), None
patent: 2 051 870 (1996-01-01), None
patent: 2007/104300 (2007-09-01), None
patent: 2007/104764 (2007-09-01), None
Schott Technical Glasses, Physical and Technical Properties, Schott North America, Inc, Elmsford, NY, USA, Nov. 2007 (in English).

Affiliated with

Also associated with

Rating

Core glass in the alkali-zinc-silicate glass system for an... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Core glass in the alkali-zinc-silicate glass system for an..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Core glass in the alkali-zinc-silicate glass system for an... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4301032