Support web for roofing membranes
AssigneeHoechst Aktiengesellschaft
InventorsKarl-Christian Zerfass, Franz Kaulich, Michael Schops, Hans Wagner, Bertrand C. Weiter
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Abstract
There is described a support web for roofing membranes which comprises a spunbonded made of polyester filaments. The spunbonded has a basis weight of from 50 to 100 g/m.sup.2 coupled with a filament denier of from 1 to 8 dtex and has been consolidated with a fusible binder. This produces a high tear propagation resistance and nail pullout strength and also good dimensional stability at high temperatures. The spunbonded support web is therefore particularly suitable for bitumenized roofing membranes.
Claims11
A support web for roofing membranes which comprises a spunbonded web of polyethylene terephthalate filaments, said spun-bonded web having a basis weight of from 50 to 100 g/m.sup.2 coupled with a filament denier of from 1 to 8 dtex and having been consolidated with a fusible binder in the form of binder filaments.
Dependencies are inferred from the claim text.