Abstract: A primary carpet backing for latex free tufted carpets, including tufting yarns tufted into the backing, the yarns consisting essentially of a first thermoplastic polymer selected from a polyamide, a polyester or a polyolefin, the polymer having a first melting temperature, and wherein the back stitches of the tufting yarns have been at least partially melted for achieving tuft bind in the latex free tufted carpet after the melted back stitches have been cooled to room temperature, the primary carpet backing including at least a first layer of fibers, wherein the backing consists for at least 30 wt. % of one or more lower melting polymers of the same polymer family as the first polymer included in the tufting yarns and wherein each of the lower melting polymers has a melting temperature which is equal to or less than the first melting temperature.

Abstract: A carrier material includes at least a first thermoplastic fiber layer and a second thermoplastic fiber layer. At least a part of the first thermoplastic fiber layer and/or the second thermoplastic fiber layer at at least one boundary of the carrier material is removed, to provide a first part of a form-fit connection. The carrier material can be used in bituminous roofing membranes, roofing underlayment sheets, carriers for filter media, primary backings for tufted carpets and (cushion) vinyl floor coverings.

Abstract: A material for a primary carpet backing including a nonwoven fabric including first bicomponent core/sheath fibers including a first thermoplastic polymer in the core and a second thermoplastic polymer in the sheath and second bicomponent core/sheath fibers including a third thermoplastic polymer in the core and a fourth thermoplastic polymer in the sheath, wherein the first thermoplastic polymer in the core of the first bicomponent core/sheath fibers is of a different polymer family as the third thermoplastic polymer in the core of the second bicomponent core/sheath fibers, and wherein the second thermoplastic polymer in the sheath of the first bicomponent core/sheath fibers and the fourth thermoplastic polymer in the sheath of the second bicomponent core/sheath fibers are polymers of the same polymer family, preferably having the same melting temperature.

Abstract: A nonwoven carrier material including at least a first part and a second part whereby the first and the second part including at least two layers of thermoplastic fibers. The first part and the second part are connected with each other in a connecting area to form the nonwoven carrier material whiteout thickness and weight variations in the connecting area. Further, a method for connecting a first and a second part of a nonwoven carrier material to form a connected nonwoven carrier material.

Abstract: An erosion control system is disclosed for preventing erosion of embankments including a three-dimensional material, the three-dimensional material including void volumes, and a mixture including a particulate material and a binder material included in the void volumes, wherein the binder material includes an organic binder material derived from living matter.