Patent ID: 6701749
Filing Date: 2004-03-09
Classification: C03B,C03C,E06B,Y02A,Y02B

Abstract:
A method of in making a thermally insulating glass panel, the method comprising:depositing a first portion of edge seal material on first and swami glass substrates; thermally tempering the first and second glass substrates with the first portion of edge seal material thereon; following said tempering, depositing a second portion of edge seal material on at least first substrate over at least part of the first portion of edge seal material already on the first substrate, wherein at least one of the edge seal material(s) is doped with a material so that it is more absorbing of microwave energy from 2-8 mm: forming a hermetic peripheral or edge seal at least partially between the first and second substrates by at least using microwave energy comprising a wavelength(s) of from 2-8 mm directed toward at least the second portion of edge seal material so that the second portion of edge seat material bonds to both: a) the first portion of edge seal material on the first substrate, and b) the first portion of edge seal material on the second substrate; and evacuating a space between the first and second substrates so as to form a low pressure area having a pressure less than atmospheric pressure between the first and second substrates.