Multilayer structure

Details Multilayer structure Multilayer structure

B - Operations, Transporting

32

B

154/115, 61/48

B32B 5/26 (2006.01) D04H 13/00 (2006.01) E02B 5/02 (2006.01)

Patent

CA 1334820

A multilayer structure which provides high strength under low distortion or elongation conditions without impairing the draining properties of conventional structures or the ease with which they can be transported or be made to conform to the earth surfaces over which they are laid. The multilayer structure of the invention comprises knitted or woven fabric layers and non-woven fabric layers multilaid together; the knitted or woven fabric layers consist of synthetic resin multifilaments oriented at least in one direction and having a tensile elastic modulus of 20GPa or more, preferably 50GPa or more, and a tensile strength of 1.2GPa or more, preferably 1.5GPa or more, while the non-woven fabric layers consist of long or short synthetic resin fibers arranged at random.

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