Photochromic sheet glass process

Details Photochromic sheet glass process Photochromic sheet glass process

1979-04-05

1980-05-20

Van Balen, William J.

Stock material or miscellaneous articles

Composite

Of quartz or glass

65 90, 65121, 65DIG2, 428913, B32B 3300, B32B 1706, C03B 1700, C03B 526

Patent

active

042040272

ABSTRACT:
A relatively thin layer of molten photochromic glass is formed on the surface of a relatively thick molten core glass of greater viscosity than that of the photochromic glass as such core glass is drawn into sheet form. The core glass is selected for its viscosity-temperature characteristics such that the core glass will support the photochromic surface glass during the temperature cycle required for developing the photochromic properties of such surface glass.

REFERENCES:
patent: 1734964 (1929-11-01), Danner
patent: 2992517 (1961-07-01), Hicks, Jr.
patent: 3197296 (1965-07-01), Eppler et al.
patent: 3208860 (1965-09-01), Armistead et al.
patent: 3218143 (1965-11-01), De Lajarte
patent: 3338696 (1967-08-01), Dockerty
patent: 3519411 (1970-07-01), Cortright et al.
patent: 3582306 (1971-06-01), Giffen
patent: 3673049 (1972-06-01), Giffen et al.
patent: 3737294 (1973-06-01), Dumbaugh, Jr. et al.
patent: 3791806 (1974-02-01), Koizumi et al.
patent: 4009318 (1977-02-01), Elmer et al.
patent: 4018965 (1977-04-01), Kerko et al.
patent: 4088470 (1978-05-01), Bourg et al.
patent: 4130680 (1978-12-01), Ference et al.

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