Title:
TWO-PLY POLYURETHANE/GEOTEXTILE COMPOSITE AND PROCESS FOR PREPARING THE SAME
Document Type and Number:
WIPO Patent Application WO2002074824
Kind Code:
A3
Abstract:
Two-ply polyurethane geotextile composites suitable for lining ditches and canals in which a rigid, dimensionally stable geotextile is bonded to a soft, pliable geotextile with a solidifiable, liquid polyurethane composition which is a reaction product of a mixture of a liquid polyisocyanate having an NCO content of at least 10% by weight, an isocyanate-reactive component which includes at least one high molecular weight polyether polyol and a urethane catalyst are made, preferably at the site where the composite will be used.
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Inventors:
MARKUSCH PETER H
GUETHER RALF
GUETHER RALF
Application Number:
PCT/US2002/007336
Publication Date:
February 12, 2004
Filing Date:
March 07, 2002
Export Citation:
Assignee:
BAYER POLYMERS LLC (US)
International Classes:
C08G18/48; C08G18/66; E02B3/12; (IPC1-7): C08G18/66; E02B3/12
Domestic Patent References:
| WO1992006845A1 | 1992-04-30 |
Foreign References:
| US5421677A | 1995-06-06 | |||
| US5560736A | 1996-10-01 |
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