US 12,329,214 B2
Textile article comprising graphene and filters comprising said textile article
Giulio Giuseppe Cesareo, Milan (IT); and Laura Giorgia Rizzi, Saronno (IT)
Assigned to Directa Plus S.p.A., Lomazzo (IT)
Appl. No. 17/927,768
Filed by DIRECTA PLUS S.P.A., Lomazzo (IT)
PCT Filed May 24, 2021, PCT No. PCT/EP2021/063754
§ 371(c)(1), (2) Date Nov. 25, 2022,
PCT Pub. No. WO2021/239659, PCT Pub. Date Dec. 2, 2021.
Claims priority of application No. 102020000012262 (IT), filed on May 25, 2020.
Prior Publication US 2023/0225430 A1, Jul. 20, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. A41D 13/11 (2006.01); B01D 39/08 (2006.01); B01D 39/16 (2006.01); B01D 39/20 (2006.01); B01D 71/02 (2006.01); B82Y 30/00 (2011.01); D06B 3/18 (2006.01); D06M 11/74 (2006.01); D06M 16/00 (2006.01); D06M 101/06 (2006.01); D06M 101/20 (2006.01); D06M 101/32 (2006.01); D06M 101/38 (2006.01)
CPC A41D 13/11 (2013.01) [B01D 39/083 (2013.01); B01D 39/1623 (2013.01); B01D 39/2058 (2013.01); B01D 71/0211 (2022.08); B82Y 30/00 (2013.01); D06B 3/18 (2013.01); D06M 11/74 (2013.01); D06M 16/00 (2013.01); B01D 2239/0241 (2013.01); B01D 2239/0258 (2013.01); B01D 2239/0442 (2013.01); B01D 2239/0464 (2013.01); B01D 2239/0618 (2013.01); B01D 2239/0627 (2013.01); B01D 2239/10 (2013.01); D06M 2101/06 (2013.01); D06M 2101/20 (2013.01); D06M 2101/32 (2013.01); D06M 2101/38 (2013.01); D06M 2200/00 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A textile article comprising:
a textile substrate having a bacterial filtration efficiency of less than 80% prior to the application of graphene; and
a polymeric binder with graphene in an amount from 0.5 to 20 g of graphene per square meter of textile substrate for forming an electric and thermal circuit heatable by Joule effect with an external battery or by exposure to electromagnetic radiation in the infrared or microwave region,
wherein the graphene has a C/O ratio of >100:1 and is in the form of nano-platelets, and the textile article after application of graphene has a bacterial filtration efficiency greater than 80%.