Gray glass composition

Details Gray glass composition Gray glass composition

C - Chemistry, Metallurgy

03

C

C03C 4/08 (2006.01) C03C 3/087 (2006.01) C03C 3/095 (2006.01) C03C 4/02 (2006.01)

Patent

CA 2135820

The present invention provides a glass composition having a neutral gray color and a luminous (visible) transmittance within a range that allows the glass to be used as privacy glazing in a vehicle. The base glass is a soda-lime-silica composition and iron, cobalt, selenium and/or are added as colorants. In one particular embodiment of the invention, a neutral gray colored glass with a luminous transmittance (C.I.E. illuminant A) ranging from 20% to 50% at a thickness of 3.9 millimeters may be attained by using as colorants: 0.15 to 1.2 wt. % of the total glass Fe2O3 (total iron), no greater than 0.30 wt. % FeO, 60-180 PPM CoO, 0-30 PPM Se, and 0-550 PPM NiO.

Affiliated with

Also associated with

Rating

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

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

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1469571