Biodegradable needle punch carpet

D - Textiles – Paper – 06 – N

Patent

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Details

D06N 7/00 (2006.01) D04H 1/46 (2006.01)

Patent

CA 2620378

The present invention provides needle punch carpets for intensive use, as well as methods of manufacture of the same. The needle punch carpets are substantially, and preferably completely biodegradable. A needle punch carpet according to the present invention comprises a needle felt and at least one backing layer, wherein both the needle felt and the at least one backing layer comprise at least 90%, preferably at least 95%, more preferably at least 98% and most preferred 100% of polymeric biodegradable material, for example poly (L-lactic acid) and poly (D-lactic acid), respectively.

La présente invention concerne des tapis aiguilletés pour une utilisation intense, ainsi que des procédés de fabrication de ceux-ci. Lesdits tapis sont sensiblement, et de préférence entièrement biodégradables. Un tapis aiguilleté selon la présente invention comprend un feutre aiguilleté et au moins une couche d~endos, à la fois le feutre aiguilleté et la ou les couches d~endos comprenant au moins 90 %, de préférence au moins 95 %, mieux encore au moins 98 % et idéalement 100 % du matériau biodégradable polymère, par exemple de l~acide poly(L-lactique) et de l~acide poly(D-lactique), respectivement.

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