Polyurethane/geotextile composite and a process related thereto for the production thereof

Number of patents in Portfolio can not be more than 2000

United States of America Patent

APP PUB NO 20020168907A1
SERIAL NO

09809604

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A polyurethane/geotextile composite having greater strength and dimensional stability than composites made with filled polyurethanes is produced by impregnating a geotextile with an unfilled polyurethane composition and allowing the polyurethane composition to cure. The polyurethane composition employed is reaction product of a liquid polyisocyanate having an isocyanate content of at least 10% by weight, a high molecular weight polyether polyol, and an organometallic catalyst. A low molecular weight diol or triol may optionally be included in the polyurethane-forming reaction mixture. These polyurethane/geotextile composites are particularly suitable for lining ditches and canals.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
BAYER MATERIALSCIENCE LLCPITTSBURGH, PA53

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Guether, Ralf Pittsburgh, PA 18 79
Markusch, Peter H McMurray, PA 86 1031

Cited Art Landscape

Patent Info (Count) # Cites Year
 
THE DOW CHEMICAL COMPANY (1)
* 4853054 Process for preparing polyurethane carpet backings based on high equivalent weight polyols 53 1987
 
COVESTRO LLC (2)
* 5558917 Polyurethane carpet backing process based on polymeric MDI quasi-prepolymers 4 1995
* 6187892 Method of making a coated substrate with polyurethane/urea contact adhesive formulations and the coated substrate by this method 12 1995
* Cited By Examiner

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
NEVADA SUPPLY CORPORATION (2)
* 7267288 Polyurethane in intimate contact with fibrous material 20 2001
* 2002/0137,871 Polyurethane in intimate contact with fibrous material 8 2001
 
BAYER MATERIALSCIENCE LLC (1)
* 2005/0058,515 Geotextile/polymer composite liners based on waterborne resins 5 2003
* Cited By Examiner