	US 12,320,047 B2
	Meltblown nonwovens having high volume resistivity and articles thereof
Xin Huang, Shanghai (CN); Yunfeng Yang, Shanghai (CN); Shijie Ren, Shanghai (CN); Yijian Lin, Pearland, TX (US); Haiyang Yu, Shanghai (CN); and Jingya Li, Shanghai (CN)
Assigned to Dow Global Technologies LLC, Midland, MI (US)
Appl. No. 18/040,860
Filed by Dow Global Technologies LLC, Midland, MI (US)
PCT Filed Aug. 21, 2020, PCT No. PCT/CN2020/110449 § 371(c)(1), (2) Date Feb. 7, 2023, PCT Pub. No. WO2022/036672, PCT Pub. Date Feb. 24, 2022.
Prior Publication US 2023/0257920 A1, Aug. 17, 2023
Int. Cl. B32B 41/00 (2006.01); B01D 39/16 (2006.01); D04H 3/018 (2012.01); D04H 3/147 (2012.01); D04H 3/16 (2006.01)

CPC D04H 3/16 (2013.01) [B01D 39/1623 (2013.01); D04H 3/018 (2013.01); D04H 3/147 (2013.01); B01D 2239/0622 (2013.01); B01D 2239/1233 (2013.01)]

11 Claims

1. A meltblown nonwoven formed from a composition comprising:

an ethylene/alpha-olefin interpolymer having

a density of from 0.911 to 0.939 g/cc,

a Brookfield viscosity of less than or equal to 50,000 cP, and

a molecular weight distribution (M_w,cc/M_n,cc) of 1.8 to 3.5; and

an additive selected from halloysite;

wherein the composition has a volume resistivity of greater than 7.0E+16 ohm·cm at room temperature.