	US 12,134,846 B2
	Nonwoven fabric
Gijsbrecht Jacobus Maria Habraken, Ludwigshafen am Rhein (DE); Klaus Scheuermann, Ludwigshafen am Rhein (DE); Gabriel Skupin, Ludwigshafen am Rhein (DE); and Jens-Uwe Schierholz, Ludwigshafen Am Rhein (DE)
Assigned to BASF SE, Ludwigshafen am Rhein (DE)
Appl. No. 17/436,267
Filed by BASF SE, Ludwigshafen am Rhein (DE)
PCT Filed Mar. 5, 2020, PCT No. PCT/EP2020/055769 § 371(c)(1), (2) Date Sep. 3, 2021, PCT Pub. No. WO2020/178363, PCT Pub. Date Sep. 10, 2020.
Claims priority of application No. 19161276 (EP), filed on Mar. 7, 2019.
Prior Publication US 2022/0162788 A1, May 26, 2022
Int. Cl. D04H 3/011 (2012.01); D04H 3/147 (2012.01); D04H 3/16 (2006.01)

CPC D04H 3/011 (2013.01) [D04H 3/147 (2013.01); D04H 3/16 (2013.01)]

5 Claims

1. A nonwoven fabric comprising continuous spunbonded bicomponent fibers which consist of:

50 to 95% by weight of an aromatic polyester (A) in a core;

5 to 50% by weight of a polyester blend (B) containing:

a) 65 to 95% of an aromatic polyester (BA) and

b) 5 to 35% by weight of an aliphatic-aromatic polyester (BB) with a glass temperature below 0° C.

in a sheath surrounding the core; and

0 to 5% by weight of at least one additive (C);

wherein the % by weight are based in each case on the total weight of the components (A) and (B) and optionally (C); and

wherein the polyesters (A) and (BA) are selected from the group consisting of poly(ethylene terephthalate) and poly(butylene terephthalate).