Peter T Coolen

US Patent:

62075993, Mar 27, 2001

Filed:

Aug 27, 1998

Appl. No.:

9/141025

Inventors:

Peter Thomas Coolen - Asheville NC
Samuel T. Johnson - Arden NC

Assignee:

Akzo Nobel NV - Arnhem

International Classification:

B32B3/02

US Classification:

442242

Abstract:

A nonwoven primary carpet backing includes thermoplastic polymer filaments or fibers bonded by means of a binder polymer. The backing includes at least a distinguishable thermoplastic woven layer, a distinguishable thermoplastic continuous layer, or a distinguishable nonwoven layer including filaments or fibers bonded by means of a binder polymer, which layer reduces the delamination strength of the backing, measured in accordance with DIN 54310, by at least 30% and preferably by at least 50%, with respect to the same backing without the distinguishable layer. Although the breaking strength of the untufted backing according to the invention is lower than that of untufted backings not including the distinguishable layer, the tufted backing according to the invention actually has a higher breaking strength and elongation than tufted backings not including the distinguishable layer.