Process for preparing a durable glass composition

Details Process for preparing a durable glass composition Process for preparing a durable glass composition

1990-11-01

1993-06-01

Bell, Mark L.

Glass manufacturing

Processes

Forming product or preform from molten glass

65 301, 501 35, 501 45, 428228, 428241, 623 11, 623 16, 264 65, C03B 3700, C03C 1500, C03C 1300, C03C 316

Patent

active

052155633

ABSTRACT:
A process for preparing an improved durable glass composition is described. In the first step of the process, a glass batch containing from 40 to 80 mole percent of phosphorous and from 3 to 40 mole percent of iron is provided. In the second step of the process, the glass batch is melted under an enriched oxygen atmosphere.

REFERENCES:
patent: 3897236 (1975-07-01), Roberts
patent: 4182437 (1980-01-01), Roberts et al.
patent: 4604097 (1986-08-01), Graves, Jr. et al.
patent: 4735857 (1988-04-01), Tagai et al.
patent: 4741752 (1988-05-01), France et al.
patent: 4820573 (1989-04-01), Tagai et al.
patent: 4847219 (1989-07-01), Boatner
patent: 5013323 (1991-05-01), Kobayashi et al.

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