<p>A fire-retardant window conforming to German industrial standard DIN EN 357 consists of a one-piece window pane (2) that is physically or chemically pre-stressed and located within a surrounding frame (1). The glass softening point (log ( = 7.6) is above the melting point of 875[deg] C. The bending tensile strength is above 100 N/mm(2 and the modulus of elasticity is above 75,000 N/mm(2.</p>
申请公布号
EP1918503(A1)
申请公布日期
2008.05.07
申请号
EP20070118709
申请日期
2007.10.17
申请人
SCHOTT AG
发明人
SCHWABE KLAUS-DIETER;FREITAG, RUEDIGER;PANZNER, GERRIT;KLOSSEK, JENS;RING, MARKUS;SCHNEIDER, KLAUS;SIEBERS, FRIEDRICH;LAUTENSCHLAEGER, GERHARD