B - Operations – Transporting – 29 – B
Patent
B - Operations, Transporting
29
B
B29B 17/00 (2006.01) A47G 27/00 (2006.01) B29B 17/02 (2006.01) B29B 17/04 (2006.01) B32B 5/22 (2006.01) B32B 7/12 (2006.01) B32B 27/40 (2006.01) B32B 33/00 (2006.01) B32B 38/10 (2006.01) C08F 283/00 (2006.01) C08F 283/04 (2006.01) C08G 18/64 (2006.01) C08G 18/69 (2006.01) C08G 18/83 (2006.01) C08J 11/24 (2006.01) D06N 7/00 (2006.01)
Patent
CA 2348886
This invention relates to methods for processing floor coverings (100), such as carpet and/or carpet tile, having at least one layer containing a polyurethane (104), such that at least this polyurethane-containing layer (104) can be recycled and reused. The method involves contacting the floor covering (100) with an organic polyol (110) and heating (120) it, so that the polyurethane-containing layer (104) softens and/or partially liquefies, but can be resolidified by contact with additional polyisocyanate (140).
La présente invention concerne des procédés de traitement de revêtements (100) de sol tels que des tapis et/ou des dalles de moquette comprenant au moins un couche renfermant un polyuréthanne (104) de sorte qu'au moins cette couche (104) contenant du polyuréthanne puisse être recyclée et réutilisée. Le procédé consiste à mettre en contact le revêtement (100) de sol avec un polyol organique (110) et à le chauffer (120), pour que la couche (104) contenant du polyuréthanne se ramollisse et/ou se liquéfie partiellement, mais qu'elle puisse cependant être resolidifiée par contact avec un polyisocyanate additionnel (140).
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Interface Inc.
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