Patent ID: 6207599
Filing Date: 2001-03-27
Classification: B32B,D06N,Y10T

Abstract:
A nonwoven primary carpet backing comprising:a first layer comprising thermoplastic polymer filaments or fibers bonded by means of a binder polymer,a second layer, wherein said second layer is a distinguishable layer selected from the group consisting of (a) a distinguishable thermoplastic woven layer, (b) a distinguishable thermoplastic continuous layer, and (c) a distinguishable nonwoven layer also comprising filaments or fibers bonded by means of a binder polymer, anda third layer, such that said second layer is embedded in the backing between the first layer and the third layer, such that said second layer is distinguishable from said first and third layers,wherein the distinguishable layer reduces the delamination strength between layers of the backing, measured in accordance with DIN 54310, by at least 30% with respect to a similar multi-layer backing without the distinguishable layer.