Opal glass exhibiting a creamy-white tint

Details Opal glass exhibiting a creamy-white tint Opal glass exhibiting a creamy-white tint

1986-03-06

1987-08-18

Bell, Mark L.

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

501 57, 501 59, C03C 1400, C03C 3112, C03C 3118

Patent

active

046877517

ABSTRACT:
This invention relates to the production of opal glasses having a creamy-white tint which are suitable for forming culinary articles. The opacity is obtained through precipitation of fluorides, preferably NaF. The creamy-white tint results from the association of Fe.sub.2 O.sub.3 with TiO.sub.2 and/or As.sub.2 O.sub.3 and/or CeO.sub.2, with the addition of nitrates. The preferred composition of the final glass consists essentially, in weight percent, of:

REFERENCES:
patent: 1292147 (1919-01-01), Taylor
patent: 2321987 (1943-06-01), Brown
patent: 2683666 (1954-07-01), Duncan et al.
patent: 2965503 (1960-12-01), Hagedorn et al.
patent: 3673049 (1972-06-01), Giffen et al.
patent: 4311529 (1982-01-01), Danielson et al.
patent: 4532223 (1985-07-01), Barlier et al.

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