Carpet construction having secondary backing

Details Carpet construction having secondary backing Carpet construction having secondary backing

2008-04-29

2008-04-29

Aftergut, Jeff H. (Department: 1791)

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

C156S308200, C156S324000, C156S324400, C428S095000, C428S096000, C428S097000

Reexamination Certificate

active

07364634

ABSTRACT:
A tufted carpet includes a primary backing having a back side and a face side, and a secondary backing. The carpet includes tufts of yarn sewn through the primary backing so as to be exposed on the face side and to form a plurality of back stitches on the back side. The yarn of the tufted carpet is a thermoplastic material having a yarn melting point. The secondary backing is a thermoplastic material in the form of a fluid-impervious film or a fabric having a softening temperature that is no lower than the yarn melting point, or a laminate having an inner and an outer layer, in which the outer layer comprises a thermoplastic material having a softening temperature that is no lower than the yarn melting point. A method for making such a tufted carpet includes the steps of bringing the secondary backing into contact with at least some of the back stitches on the back side of the primary backing, and heating the combination of the primary backing and the secondary backing to a temperature sufficient to adhere the secondary backing to the back stitches without melting the secondary backing.

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