Prefabricated membrane based on modified polyurethane...

Details Prefabricated membrane based on modified polyurethane... Prefabricated membrane based on modified polyurethane...

2008-05-20

2008-05-20

Ruddock, Ula C (Department: 1794)

Stock material or miscellaneous articles

Composite

Of polyamidoester

C428S424200, C428S489000, C442S048000, C442S059000, C442S102000, C442S136000, C524S059000, C524S062000, C524S705000, C106S273100, C106S275000, C106S277000, C106S281100, C106S282000

Reexamination Certificate

active

10659273

ABSTRACT:
The present invention has for its object a prefabricated sealing membrane formed by a support, coated on at least one surface, and preferably impregnated throughout, with a modified bitumen base composition, characterized in that the thermoplastic bituminous composition for coating and/or impregnation is a bituminous binder modified by a thermoplastic polyurethane having the following weight proportion:40 to 90% bitumen,10 to 50% thermoplastic polyurethane,0 to 10% aromatic oil,0 to 50% filler,0 to 0.5% catalyst.

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