US 12,017,421 B2
Method of producing composites
Mahdi Ghazizadeh, The Woodlands, TX (US); Eitan Zeira, Merrimack, NH (US); Derek Kincaid, The Woodlands, TX (US); and David Hatrick, The Woodlands, TX (US)
Assigned to Nanocomp Technologies Inc.
Appl. No. 17/299,866
Filed by Nanocomp Technologies, Inc., The Woodlands, TX (US)
PCT Filed Dec. 9, 2019, PCT No. PCT/US2019/065128
§ 371(c)(1), (2) Date Jun. 4, 2021,
PCT Pub. No. WO2020/123326, PCT Pub. Date Jun. 18, 2020.
Claims priority of provisional application 62/778,737, filed on Dec. 12, 2018.
Prior Publication US 2022/0080681 A1, Mar. 17, 2022
Int. Cl. B29C 70/54 (2006.01); B29C 35/12 (2006.01); B29C 70/30 (2006.01); B29L 9/00 (2006.01)
CPC B29C 70/54 (2013.01) [B29C 35/12 (2013.01); B29C 70/30 (2013.01); B29K 2713/00 (2013.01); B29K 2995/0005 (2013.01); B29L 2009/00 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method of producing a composite laminate, comprising:
(i) providing a curable system comprising:
a stack of two or more prepregs, and
one or more carbon nanotube sheets, wherein at least one of the carbon nanotube sheets is placed in-between the two or more prepregs and wherein the carbon nanotube sheet is a self-supporting, nonwoven sheet of substantially non-aligned carbon nanotubes; and
(ii) at least partially curing the curable system by running an electric current through the one or more carbon nanotube sheets and subjecting the curable system to alternating electromagnetic fields such that at least a portion of the prepregs are cured.