Compositions: ceramic – Ceramic compositions – Glass compositions – compositions containing glass other than...
Patent
1996-07-30
1997-11-04
Bell, Mark L.
Compositions: ceramic
Ceramic compositions
Glass compositions, compositions containing glass other than...
501 15, 501 32, 501 10, 501 76, C03C 814, C03C 1400
Patent
active
056839480
ABSTRACT:
A hermetic sealing composition comprising 100 parts by weight of a basic composition consisting of from 80 to 99.9 wt % of a crystalline low melting glass powder containing lead and boron and from 0.1 to 20 wt % of a low expansion ceramic filler, and from 0.001 to 1.0 part by weight, in total, of at least one of an .alpha.-4PbO.B.sub.2 O.sub.3 crystal powder and a Pb.sub.3 O.sub.4 powder, incorporated to the basic composition, the thermal expansion coefficient of the sealing composition after firing being from 80.times.10.sup.-7 to 105.times.10.sup.-7 /.degree.C. within a range of from room temperature to 300.degree. C.
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Kuroki Yuichi
Nakamura Akira
Rokudai Satoshi
Tanabe Ryuichi
Asahi Glass Company Ltd.
Bell Mark L.
Iwaki Glass Company Ltd.
Troilo Louis M.
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