Prefabricated membrane based on modified polyurethane bituminous binder and process for production
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United States of America Patent
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Feb 25, 2014
Grant Date -
Sep 4, 2008
app pub date -
Apr 23, 2008
filing date -
Sep 11, 2002
priority date (Note) -
In Force
status (Latency Note)
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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.
First Claim
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International Classification(s)
- B05D:PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MAT....
- C08G:MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN B....
- C09D:COATING COMPOSITIONS, e.g. PAINTS, VARNISHES, LACQ....
- D06N:WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINO....
- C08L:COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- B32B:LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA....
- C08K:USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUB....
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