US 11,926,959 B2
High tenacity textiles containing shear thickening fluid and uses thereof
Norman J. Wagner, Newark, DE (US); and Richard Dombrowski, Lutherville, MD (US)
Assigned to STF Technologies, LLC, Newark, DE (US)
Appl. No. 17/258,281
Filed by STF Technologies, LLC, Newark, DE (US)
PCT Filed Jul. 3, 2019, PCT No. PCT/US2019/040541
§ 371(c)(1), (2) Date Jan. 6, 2021,
PCT Pub. No. WO2020/010224, PCT Pub. Date Jan. 9, 2020.
Claims priority of provisional application 62/694,837, filed on Jul. 6, 2018.
Prior Publication US 2021/0140099 A1, May 13, 2021
Int. Cl. D06M 15/53 (2006.01); B32B 5/26 (2006.01); B64G 6/00 (2006.01); D06M 11/46 (2006.01); D06M 11/74 (2006.01); D06M 11/76 (2006.01); D06M 11/83 (2006.01); D06M 17/00 (2006.01)
CPC D06M 15/53 (2013.01) [B32B 5/26 (2013.01); B64G 6/00 (2013.01); D06M 11/46 (2013.01); D06M 11/74 (2013.01); D06M 11/76 (2013.01); D06M 11/83 (2013.01); D06M 17/00 (2013.01); B32B 2255/02 (2013.01); B32B 2255/26 (2013.01); B32B 2260/023 (2013.01); B32B 2260/046 (2013.01); B32B 2262/02 (2013.01); B32B 2264/102 (2013.01); B32B 2264/104 (2013.01); B32B 2264/105 (2013.01); B32B 2307/56 (2013.01); B32B 2307/581 (2013.01); B32B 2307/73 (2013.01); D06M 2200/12 (2013.01)] 25 Claims
OG exemplary drawing
 
1. A textile with increased resistance to puncture, cutting, abrasion, and/or dust penetration, the textile comprising:
(1) a fabric comprising a plurality of fibers comprising a tensile strength of at least about 250 MPa, wherein the plurality of fibers comprise a three-beam weave with one surface of ePTFE interwoven into a second surface of poly-(m-phenylene isophthalamide) interlaced with a poly-(p-phenylene terephthalamide) lattice or a two-beam weave with one surface of ePTFE interwoven into a second surface comprising aromatic polyester fibers produced by polycondensation of 4-hydroxybenzoic acid and 6-hydroxynapthalene-2-carboxylic acid and poly-(p-phenylene terephthalamide; and
(2) a shear thickening fluid comprising at least one low volatility carrier fluid comprising a vapor pressure of less than about 1×10−6 mPa at 25° C. in which is suspended particles having an average particle size of less than about 4,000 nm;
wherein the particles are suspended in the low volatility carrier fluid at a concentration in the range from about 40% to about 85% by weight particles, wherein the shear thickening fluid is intercalated into the fabric, and wherein the shear thickening fluid confers to the fabric increased resistance to puncture, cutting, abrasion, and/or dust penetration as compared to an equivalent fabric that is not intercalated with shear thickening fluid.