US 12,291,014 B2
Mineral additive modified basalt fibre based PMMA composites for ballistic applications
Deepa Jose, Belfast (GB); and Nigel J. McKibbin, Northern Ireland (GB)
Assigned to B/E Aerospace (UK) Limited, Leighon Buzzard (GB)
Filed by B/E Aerospace (UK) Limited, Leighton Buzzard (GB)
Filed on Aug. 21, 2023, as Appl. No. 18/236,170.
Prior Publication US 2025/0065600 A1, Feb. 27, 2025
Int. Cl. B32B 5/26 (2006.01); B32B 3/12 (2006.01); B32B 5/02 (2006.01); B32B 7/12 (2006.01); B64D 11/00 (2006.01)
CPC B32B 5/263 (2021.05) [B32B 3/12 (2013.01); B32B 5/024 (2013.01); B32B 7/12 (2013.01); B64D 11/00 (2013.01); B32B 2250/40 (2013.01); B32B 2260/023 (2013.01); B32B 2260/046 (2013.01); B32B 2262/0269 (2013.01); B32B 2262/108 (2013.01); B32B 2307/3065 (2013.01); B32B 2605/18 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A composite panel comprising:
a top woven fabric;
a bottom woven fabric; wherein each of the top woven fabric and the bottom woven fabric comprise a plurality of basalt fibers;
a plurality of inner woven fabrics; wherein the plurality of inner woven fabrics are disposed between the top woven fabric and the bottom woven fabric;
a polymer matrix; wherein the polymer matrix comprises Poly(methyl methacrylate) (PMMA); and
a honeycomb structure; wherein the honeycomb structure is disposed between the top woven fabric and the bottom woven fabric; wherein the honeycomb structure is disposed between two or more of the plurality of inner woven fabrics;
wherein the top woven fabric, the bottom woven fabric, the plurality of inner woven fabrics, and the honeycomb structure are impregnated by the polymer matrix; wherein the polymer matrix fills voids gaps between warp fibers and weft fibers of the top woven fabric, the bottom woven fabric, and the plurality of inner woven fabrics; wherein the polymer matrix is disposed within cells of the honeycomb structure; wherein the polymer matrix acts as a unitary layer with the top woven fabric, the bottom woven fabric, the plurality of inner woven fabrics, and the honeycomb structure.