	US 12,454,774 B2
	Method of manufacturing multifilament yarns of filled high-performance polyethylene (HPPE) fibers
Roelof Marissen, Echt (NL); Tina Brückner, Echt (NL); Peto Verdaasdonk, Echt (NL); and Jozef Siegfried Johannes Homminga, Echt (NL)
Assigned to AVIENT PROTECTIVE MATERIALS B.V., Geleen (NL)
Filed by Avient Protective Materials B.V., Geleen (NL)
Filed on Sep. 8, 2023, as Appl. No. 18/244,209.
Application 18/244,209 is a division of application No. 16/500,164, abandoned, previously published as PCT/EP2018/058389, filed on Apr. 3, 2018.
Claims priority of application No. 17164458 (EP), filed on Apr. 3, 2017.
Prior Publication US 2023/0416945 A1, Dec. 28, 2023
Int. Cl. D06M 15/227 (2006.01); D01F 1/10 (2006.01); D01F 6/04 (2006.01); D02G 3/40 (2006.01); D02G 3/44 (2006.01); A41D 19/015 (2006.01)

CPC D01F 6/04 (2013.01) [D01F 1/10 (2013.01); D02G 3/404 (2013.01); D02G 3/442 (2013.01); D06M 15/227 (2013.01); A41D 19/01505 (2013.01); D10B 2321/0211 (2013.01); D10B 2501/041 (2013.01)]

47 Claims

1. A method of manufacturing a multifilament yarn comprising filled high-performance polyethylene (HPPE) fibers, the method comprising the steps of:

(a) providing filled HPPE fibers comprising HPPE filled with a hard component having a Mohs hardness of at least 2.5;

(b) applying a solvent solution or an aqueous suspension of a polymeric resin to the fibers of step a), wherein the polymeric resin is a homopolymer of ethylene or propylene or is a copolymer of ethylene and/or propylene, wherein the polymeric resin has a density as measured according to ISO1183-2004 in the range from 860 to 970 kg/m³, a melting temperature in the range from 40 to 140° C. and a heat of fusion of at least 5 J/g; and

(c) at least partially drying the solvent solution or aqueous suspension of the polymeric resin to obtain the yarn comprised of the filled HPPE-based fibers.