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Document Type and Number:
Japanese Patent JPH0579020
Kind Code:
B2
Abstract:
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.

Inventors:
GREISER WOLFGANG (DE)
PLOETZ KURT (DE)
WAGNER HANS (DE)
ZERFASS KARL-CHRISTIAN (DE)
Application Number:
JP21273585A
Publication Date:
November 01, 1993
Filing Date:
September 27, 1985
Export Citation:
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Assignee:
HOECHST AG
International Classes:
B32B5/26; D04H1/4218; D04H1/435; B32B5/06; D04H1/46; D04H1/498; D04H5/02; E04D5/10; (IPC1-7): B32B5/06; B32B5/26; E04D5/10



 
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