Method for the manufacture of borosilicate glasses

Details Method for the manufacture of borosilicate glasses Method for the manufacture of borosilicate glasses

1976-02-03

1977-06-21

McCarthy, Helen M.

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

65DIG14, 65134, 106 54, 252317, 423277, C03C 308, C04B 3516

Patent

active

040309380

ABSTRACT:
A process is provided for producing carbon free borosilicate glass compositions by hydrolyzing a silicon tetraalkoxide so as to form an at least partially hydrolyzed silicon tetraalkoxide which is then combined with a boron alkoxide and sufficient water to produce a substantially hydrolyzed borosiloxane, or borosilicate precursor, and then this precursor in the presence of free water is fractionally distilled for a time sufficient to remove all alkanol by-product.

REFERENCES:
patent: 3459673 (1969-08-01), Best et al.
patent: 3640093 (1972-02-01), Levene et al.
patent: 3799754 (1974-03-01), Thomas
patent: 3850971 (1974-11-01), Termin et al.

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