Glass manufacturing – Processes – With chemically reactive treatment of glass preform
Patent
1974-04-29
1976-04-06
Lindsay, Jr., Robert L.
Glass manufacturing
Processes
With chemically reactive treatment of glass preform
106 74, C03C 1700
Patent
active
039486290
ABSTRACT:
The present invention relates to a method for hydrating fine-dimensioned alkali metal-containing silicate glass bodies so as to impart the property of thermoplasticity thereto. More particularly, this invention contemplates contacting fine-dimensioned alkali metal silicate glass bodies with an aqueous solution at elevated temperatures and pressures to develop at least a surface layer thereon having a water content ranging up to about 36% by weight, said aqueous solution having a pH less than 6 as measured at room temperature. The hydrated bodies can approach certain properties of high-polymer organic plastics and exhibit the capability of being thermoplastically formed at relatively low temperatures.
REFERENCES:
patent: 2377062 (1945-05-01), Adams
patent: 3061495 (1962-10-01), Alford
patent: 3498802 (1970-03-01), Bickford
Bartholomew Roger F.
Campbell Larry E.
Lewek Stanley S.
Pierson Joseph E.
Stookey Stanley D.
Corning Glass Works
Janes Jr. Clinton S.
Lindsay, Jr. Robert L.
Patty, Jr. Clarence R.
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