EP 3867434 A4 20220803 - FLAME-RETARDANT NON-WOVEN FIBROUS WEBS
Title (en)
FLAME-RETARDANT NON-WOVEN FIBROUS WEBS
Title (de)
FLAMMHEMMENDE FASERVLIESBAHNEN
Title (fr)
VOILES FIBREUX NON TISSÉS IGNIFUGES
Publication
Application
Priority
- US 201862746386 P 20181016
- US 201862772277 P 20181128
- IB 2019058525 W 20191007
Abstract (en)
[origin: WO2020079525A1] A nonwoven fibrous web and a method of making thereof. The nonwoven fibrous web includes greater than 0% but no greater than 30 wt% of a plurality of melt-blown fibers comprised of a crystalline (co)polymer; and at least 70 wt% of a plurality of randomly-oriented staple fibers, the plurality of randomly-oriented staple fibers including: at least 60 wt% of oxidized polyacrylonitrile fibers; and from 0 to 40 wt% of reinforcing fibers having an outer surface comprised of a (co) polymer with a melting temperature of from 100°C to 350°C; wherein the plurality of melt-blown fibers and the plurality of randomly-oriented staple fibers are bonded together to form a cohesive non-woven fibrous web.
IPC 8 full level
D04H 1/56 (2006.01); D04H 1/43 (2012.01); D04H 1/435 (2012.01); D04H 3/007 (2012.01); D04H 3/011 (2012.01); D04H 3/16 (2006.01); D04H 5/06 (2006.01)
CPC (source: AU EP US)
D04H 1/42 (2013.01 - AU); D04H 1/4291 (2013.01 - AU US); D04H 1/43 (2013.01 - AU EP US); D04H 1/435 (2013.01 - EP US); D04H 1/465 (2013.01 - EP); D04H 1/485 (2013.01 - EP US); D04H 1/5418 (2020.05 - US); D04H 1/544 (2013.01 - US); D04H 1/55 (2013.01 - EP); D04H 1/559 (2013.01 - EP); D04H 1/56 (2013.01 - EP US); D04H 1/565 (2013.01 - AU); D04H 3/007 (2013.01 - EP); D04H 3/011 (2013.01 - EP); D04H 3/02 (2013.01 - AU); D04H 3/16 (2013.01 - EP); D04H 5/06 (2013.01 - EP); D10B 2401/04 (2013.01 - US)
Citation (search report)
- [A] WO 0168341 A1 20010920 - L & P PROPERTY MANAGEMENT CO [US], et al
- See references of WO 2020079525A1
Designated contracting state (EPC)
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
DOCDB simple family (publication)
WO 2020079525 A1 20200423; CN 112840074 A 20210525; EP 3867434 A1 20210825; EP 3867434 A4 20220803; US 2022396903 A1 20221215
DOCDB simple family (application)
IB 2019058525 W 20191007; CN 201980066694 A 20191007; EP 19872860 A 20191007; US 201917250645 A 20191007