(19)

(11)

EP 3 810 835 A1

(12)

(43) Date of publication: 28.04.2021 Bulletin 2021/17 (21) Application number: 19860151.0 (22) Date of filing: 10.09.2019

(51) International Patent Classification (IPC):  D01F 8/12(2006.01) D02G 3/04(2006.01) D02G 1/12(2006.01) (86) International application number: PCT/US2019/050401 (87) International publication number: WO 2020/055859 (19.03.2020 Gazette 2020/12)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR (30) Priority: 10.09.2018 US 201862729200 P (71) Applicant: Universal Fibers, Inc. Bristol, VA 24203 (US)	(72) Inventors: KESTNER, Larry Allen Saltville, Virginia 24370 (US) MALLETTE, Kenneth Justin Bristol, Tennessee 37620 (US) (74) Representative: Loo, Chi Ching et al Albright IP Limited County House Bayshill Road Cheltenham, Gloucestershire GL50 3BA Cheltenham, Gloucestershire GL50 3BA (GB)