US 11,919,274 B2
Permeable materials capable of lightning strike protection and use thereof in resin infusion processing
Bérénice Remy, Wrexham (GB); Junjie Jeffrey Sang, Newark, DE (US); Samuel J. Hill, Chester (GB); and Carmelo Luca Restuccia, Chester (GB)
Assigned to CYTEC INDUSTRIES INC., Princeton, NJ (US)
Filed by Cytec Industries Inc., Princeton, NJ (US)
Filed on Mar. 27, 2020, as Appl. No. 16/832,313.
Claims priority of provisional application 62/825,951, filed on Mar. 29, 2019.
Prior Publication US 2020/0307162 A1, Oct. 1, 2020
Int. Cl. B32B 15/14 (2006.01); B32B 3/10 (2006.01); B32B 5/02 (2006.01); B32B 5/26 (2006.01); B32B 7/14 (2006.01); B32B 15/02 (2006.01); B32B 27/12 (2006.01); B32B 27/38 (2006.01)
CPC B32B 15/14 (2013.01) [B32B 3/10 (2013.01); B32B 5/022 (2013.01); B32B 5/26 (2013.01); B32B 7/14 (2013.01); B32B 15/02 (2013.01); B32B 27/12 (2013.01); B32B 27/38 (2013.01); B32B 2250/03 (2013.01); B32B 2250/05 (2013.01); B32B 2250/40 (2013.01); B32B 2262/101 (2013.01); B32B 2307/202 (2013.01); B32B 2307/726 (2013.01); B32B 2311/12 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A permeable material that is porous and permeable to fluids, comprising:
a. a first nonwoven veil comprising randomly arranged fibers;
b. a porous electrically conductive layer having openings through its thickness; and
c. a resin material distributed, in a non-continuous manner, throughout the first nonwoven veil and between the first nonwoven veil and the conductive layer in a manner such that the first nonwoven veil remains porous and most or all of the openings in the conductive layer are not blocked by the resin material,
wherein the porous electrically conductive layer comprises two opposing surfaces and the first nonwoven veil is adhered to one of the opposing surfaces, and
wherein the resin material comprises one or more thermoset resins and a curing agent.