Glass manufacturing – Processes – With chemically reactive treatment of glass preform
Patent
1977-12-07
1979-01-16
Bashore, S. Leon
Glass manufacturing
Processes
With chemically reactive treatment of glass preform
65 31, 65114, 65116, 252 793, 252 794, C03C 1500, C03B 2700, C09K 5000
Patent
active
041347463
ABSTRACT:
This invention is directed to a process for strengthening glass articles and, in particular, glass containers such as beer bottles. The invention is directed to a process whereby the article is sprayed over its surface with a solution containing potassium fluoride and a metal acetate which prevents etching of the surface by the fluoride ions. The article is then treated at an elevated temperature to allow exchange of the potassium ions for the sodium ions in the glass.
REFERENCES:
patent: 3310495 (1967-03-01), Masuda et al.
patent: 3374130 (1968-03-01), Junge et al.
patent: 3782915 (1974-01-01), Filbert et al.
patent: 3844754 (1974-10-01), Grubb et al.
Levene Leon
McClung R. Wayne
Bashore S. Leon
Domglas Inc.
Miga Frank W.
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