A multilayered fabric which when used as support material for built-up roofing and sealing membranes shows not only good fire properties but also improved mechanical properties is obtained by needling together two preconsolidated fibre webs, one of which consists of synthetic fibres and the other of mineral fibres. The needling produces a strong positive bond between the two webs, which prevents the parting of the two layers under extreme thermomechanical conditions.
申请公布号
AT77855(T)
申请公布日期
1992.07.15
申请号
AT19850111672T
申请日期
1985.09.16
申请人
HOECHST AKTIENGESELLSCHAFT
发明人
GREISER, WOLFGANG;PLOETZ, KURT;WAGNER, HANS, DR.;ZERFASS, KARL-CHRISTIAN