US 12,435,448 B2
Cut resistant polyethylene yarn, method for manufacturing the same, and protective article produced using the same
Young-Soo Lee, Seoul (KR); Sang-Mok Lee, Seoul (KR); Seong-Young Kim, Seoul (KR); Sin-Ho Lee, Seoul (KR); and Min-Woo Nam, Seoul (KR)
Assigned to KOLON INDUSTRIES, INC., Seoul (KR)
Appl. No. 17/435,808
Filed by KOLON INDUSTRIES, INC., Seoul (KR)
PCT Filed Mar. 20, 2020, PCT No. PCT/KR2020/003815
§ 371(c)(1), (2) Date Sep. 2, 2021,
PCT Pub. No. WO2020/190070, PCT Pub. Date Sep. 24, 2020.
Claims priority of application No. 10-2019-0032246 (KR), filed on Mar. 21, 2019; and application No. 10-2019-0124129 (KR), filed on Oct. 7, 2019.
Prior Publication US 2022/0049378 A1, Feb. 17, 2022
Int. Cl. D01F 6/04 (2006.01); D01D 5/088 (2006.01); D01D 5/098 (2006.01); D04B 1/16 (2006.01); D04B 1/28 (2006.01); D04B 21/16 (2006.01); D04B 21/20 (2006.01)
CPC D01F 6/04 (2013.01) [D01D 5/088 (2013.01); D01D 5/098 (2013.01); D04B 1/16 (2013.01); D04B 1/28 (2013.01); D04B 21/16 (2013.01); D04B 21/207 (2013.01); D10B 2321/0211 (2013.01); D10B 2401/063 (2013.01); D10B 2501/041 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A polyethylene yarn having a weight average molecular weight of 80,000 to 160,000 g/mol, a strength of 11 to 18 g/d, an initial modulus of 150 to 200 g/d, an elongation of 6 to 10%, and a dry heat shrinkage at 100° C. of 3.0 to 3.5%,
wherein a ratio of a storage elastic modulus at 50° C. to a storage elastic modulus at 30° C. of the polyethylene yarn is 65 to 75%,
a ratio of a storage elastic modulus at 80° C. to a storage elastic modulus at 30° C. of the polyethylene yarn is 30 to 45%, and
a ratio of a storage elastic modulus at 105° C. to a storage elastic modulus at 30° C. of the polyethylene yarn is 10 to 25%.