US 12,391,022 B2
Composite structure and method of manufacture
Sandy Winthrop Chen, Balcombe West (GB)
Assigned to GRAPHENE COMPOSITES LTD, Sedgefield Stockton-on-Tees (GB)
Appl. No. 16/488,174
Filed by Graphene Composites Ltd, Sedgefield Stockton-on-Tees (GB)
PCT Filed Feb. 22, 2018, PCT No. PCT/GB2018/050462
§ 371(c)(1), (2) Date Aug. 22, 2019,
PCT Pub. No. WO2018/154304, PCT Pub. Date Aug. 30, 2018.
Claims priority of application No. 1702879 (GB), filed on Feb. 23, 2017.
Prior Publication US 2020/0061970 A1, Feb. 27, 2020
This patent is subject to a terminal disclaimer.
Int. Cl. B32B 9/00 (2006.01); B32B 9/04 (2006.01); F41H 1/02 (2006.01); F41H 5/04 (2006.01)
CPC B32B 9/007 (2013.01) [B32B 9/046 (2013.01); B32B 9/047 (2013.01); F41H 1/02 (2013.01); F41H 5/04 (2013.01); B32B 2255/102 (2013.01); B32B 2255/20 (2013.01); B32B 2266/06 (2013.01); B32B 2266/102 (2016.11); B32B 2266/126 (2016.11); B32B 2307/202 (2013.01); B32B 2307/304 (2013.01); B32B 2307/558 (2013.01); B32B 2571/02 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A protective armor article comprising a composite structure, the composite structure comprising:
a plurality of graphene layers; and
a plurality of aerogel layers;
wherein the graphene layer and the aerogel layer are directly bonded in an alternating structure;
wherein at least one of the graphene layers comprises graphene in the form of graphene platelets and the graphene platelets are dispersed in a polymer matrix;
wherein the polymer matrix comprises a polymer selected from polyurethane, polyethylene, polypropylene, polyester, polyamide, polyimide, epoxy resin or combinations thereof;
a protective layer, wherein the protective layer is provided as an exterior layer to the alternating graphene and aerogel layers and comprises one or more of aromatic polyamide fibres, boron fibres, ultra-high molecular weight polyethylene, and poly (p-phenylene-2,6-benzobisoxazole) (PBO), including combinations thereof;
wherein a fastening element is provided to secure the graphene layers and aerogel layers together when the composite structure is positioned in the protective armor article; and
wherein the graphene is provided in each of the graphene layers in an amount of from 0.1 wt % to 5 wt % graphene and wherein the polymer is provided in each of the graphene layers in an amount of from 95 wt % to 99.9 wt %.