Fire-resistant glazing

Details Fire-resistant glazing Fire-resistant glazing

1998-03-11

1999-11-23

Group, Karl

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

501 72, C03C 3087

Patent

active

059900237

ABSTRACT:
Use is made, for the manufacture of fire-resistant glazings of the G fire-resistance classes, comprising panes made of glass toughened by the thermal route by means of a conventional toughening plant and possessing safety glass properties, of glasses which exhibit a thermal expansion coefficient .alpha..sub.20-300 of between 6 and 8.5.times.10.sup.-6 K.sup.-1, a thermal stress factor .phi. of between 0.5 and 0.8N/(mm.sup.2.K), a softening point of between 750 and 830.degree. C. and a transformation point of at the very most 1190.degree. C.

REFERENCES:
patent: 3984252 (1976-10-01), Kiefer
patent: 5656558 (1997-08-01), Brix et al.
patent: 5763342 (1998-06-01), Mita et al.
patent: 5763343 (1998-06-01), Brix et al.
patent: 5776844 (1998-07-01), Koch et al.

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