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US 5,494,723 AGranted
Tufting carpet
AssigneeNorddeutsche Faserwerke GmbH
InventorsKarl-Heinz Erren, Regina Grewe, Robert Heidhues, Frank Hoppner
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Abstract
A tufting carpet is described which comprises a tufting base, a pile material and a carpet back and essentially consists exclusively of polyamide 6. Through the use of a chemically uniform material in all components of the tufting carpet, the latter can be recycled as a whole for recovery of the monomeric starting material without the need for separation into the individual components, which has hitherto hampered the recycling of tufting carpets and led to major waste disposal problems.
Claims16
A tufting carpet comprising:
- a tufting base having a first and second side;
- a pile material having pile tufting loops, the pile material secured to the first side of the tufting base;
- and
- means for securing the pile tufting loops to the tufting base, said means selected from the group consisting of a film, a melt adhesive powder or a partially solvated melt wherein the means for securing is attached to the second side of the tufting base,
- wherein each element of the carpet consists essentially of nylon-6 or a copolyamide with a high polyamide 6 content,
- whereby said tufting carpet is recyclable.
3 more elements
Dependencies are inferred from the claim text.