US 11,905,633 B2
Functional nonwoven scrim for high temperature applications requiring low flammability, smoke, and toxicity
Greg Thompson, Simpsonville, SC (US); Kendall Bush, Macomb, MI (US); Christophe Chaut, Molsheim (FR); Marc Engel, Lingolsheim (FR); Paul Lockyer, Romeo, MI (US); and Michael Czaplicki, Rochester Hills, MI (US)
Assigned to ZEPHYROS, INC., Romeo, MI (US)
Appl. No. 17/265,566
Filed by Zephyros, Inc., Romeo, MI (US)
PCT Filed Aug. 5, 2019, PCT No. PCT/US2019/045102
§ 371(c)(1), (2) Date Feb. 3, 2021,
PCT Pub. No. WO2020/028901, PCT Pub. Date Feb. 6, 2020.
Claims priority of provisional application 62/714,330, filed on Aug. 3, 2018.
Prior Publication US 2021/0301436 A1, Sep. 30, 2021
Int. Cl. D04H 1/4209 (2012.01); D04H 1/64 (2012.01); D04H 1/4374 (2012.01); D04H 1/587 (2012.01); D04H 1/541 (2012.01)
CPC D04H 1/4209 (2013.01) [D04H 1/4374 (2013.01); D04H 1/5412 (2020.05); D04H 1/5418 (2020.05); D04H 1/587 (2013.01); D04H 1/64 (2013.01); D10B 2401/04 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An article comprising:
a fibrous structure including;
a scrim layer formed from a wet laying process; and
a nonwoven web;
wherein the scrim layer comprises inorganic fibers in an amount of about 65 wt % or greater, and a binder, wherein the binder is a solution or emulsion system that makes the scrim layer water repellent;
wherein the inorganic fibers are adapted to withstand temperatures of up to about 1150° C.; and
wherein the scrim layer has a weight per area of 5 grams per square meter to about 200 grams per square meter.