Infrared radiation absorbing blue glass composition

Details Infrared radiation absorbing blue glass composition Infrared radiation absorbing blue glass composition

1990-09-24

1991-12-03

Maples, John S.

Compositions

Light transmission modifying compositions

Infrared

501 68, 501 69, 501 70, F21V 904, B04B 104, B04B 108

Patent

active

050698265

ABSTRACT:
Blue-colored, infrared radiation absorbing glass compositions are prepared by the addition of zinc sulfide and zinc oxide to glass compositions containing iron. The zinc sulfide acts as a reducing agent, to maintain a portion of the iron in the ferrous state, and the zinc oxide prevents amber coloration of the glass which would otherwise occur due to the addition of the zinc sulfide to the glass batch.

REFERENCES:
patent: 2636420 (1953-04-01), Ryan et al.

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