US 12,378,449 B2
Multi-material disassembly
Abdelghani Laachachi, Esch-sur-Alzette (LU); Nicolas Burger, Esch-sur-Alzette (LU); Gregory Mertz, Esch-sur-Alzette (LU); and David Ruch, Esch-sur-Alzette (LU)
Assigned to Luxembourg Institute of Science and Technology (LIST), Luxembourg (LU)
Appl. No. 17/922,523
Filed by Luxembourg Institute of Science and Technology (LIST), Esch-sur-Alzette (LU)
PCT Filed Apr. 28, 2021, PCT No. PCT/EP2021/061158
§ 371(c)(1), (2) Date Oct. 31, 2022,
PCT Pub. No. WO2021/219736, PCT Pub. Date Nov. 4, 2021.
Claims priority of application No. 101761 (LU), filed on Apr. 30, 2020.
Prior Publication US 2023/0340308 A1, Oct. 26, 2023
Int. Cl. B32B 41/00 (2006.01); C09J 11/04 (2006.01); C09J 163/00 (2006.01)
CPC C09J 163/00 (2013.01) [C09J 11/04 (2013.01); C09J 2301/312 (2020.08); C09J 2301/408 (2020.08); C09J 2301/502 (2020.08)] 20 Claims
OG exemplary drawing
 
1. A composite material comprising at least two substrates onto which a layer of an intumescent composition is set therebetween, said composition comprising a mixture of following individual constituents:
(i) from 5 weight % to 70 wt % of at least one carbon source,
(ii) from 0 weight % to 50 wt % of at least one acid source, and
(iii) from 5 weight % to 50 wt % of least one expanding agent, the total being 100 wt %,
wherein the intumescent composition is active at an intumescent predetermined temperature of from 120° C. to 450° C., the intumescent temperature being less than the degradation temperature of the at least two substrates, wherein the intumescent composition covers the substrates such that applying the intumescent predetermined temperature causes the composite material to disassemble by separating the substrates.