Multipurpose photochromic brown glasses

Details Multipurpose photochromic brown glasses Multipurpose photochromic brown glasses

1992-10-02

1993-09-14

Group, Karl

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

501 56, 501 67, 351166, 428913, C03C 311, C03C 406

Patent

active

052448452

ABSTRACT:
A composition for a photochromic glass consisting essentially of, in approximate calculated weight percent, about:

REFERENCES:
patent: 3208860 (1965-09-01), Armistead et al.
patent: 4043781 (1977-08-01), DeMunn et al.
patent: 4251278 (1981-02-01), Hares
patent: 4608349 (1986-08-01), Kerko et al.
patent: 4757034 (1988-07-01), Prassas
patent: 4793703 (1988-12-01), Fretz, Jr.
patent: 5023209 (1991-06-01), Grateau et al.

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