Glass manufacturing – Processes – With chemically reactive treatment of glass preform
Patent
1977-12-19
1979-07-10
Bashore, S. Leon
Glass manufacturing
Processes
With chemically reactive treatment of glass preform
65 33, 65111, 65115, 65DIG2, 106DIG6, C03K 1500, C03B 3100
Patent
active
041606558
ABSTRACT:
A process for the production of a gradient photochromic glass article comprising the selective over-nucleation of a limited portion of the article followed by a photochromic development heat treatment of the entire article, and the product of this process, are described.
REFERENCES:
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patent: 3734754 (1973-05-01), Randall et al.
patent: 3833511 (1974-09-01), Yamashita et al.
patent: 3938977 (1976-02-01), Gliemeroth
patent: 3966311 (1976-06-01), Korn et al.
patent: 4017292 (1977-04-01), Mann
patent: 4036624 (1977-07-01), Krohn et al.
patent: 4043781 (1977-08-01), De Munn et al.
Kingsbury, Jr. Paul I.
Seward, III Thomas P.
Bashore S. Leon
Corning Glass Works
Janes Jr. Clinton S.
Miga Frank W.
Patty, Jr. Clarence R.
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