US 12,258,452 B2
Method for complete recycling of inorganic-fiber reinforced epoxy composites with boron halides
Dieter Eckhard Kaufmann, Clausthal-Zellerfeld (DE); Viktor Zapolskii, Clausthal-Zellerfeld (DE); Peter Kolbe, Bad Grund (DE); and Gerd Uhde, Bad Grund (DE)
Assigned to Technische Universität Clausthal, Clausthal-Zellerfeld (DE); and MPM Environment Intelligence GmbH, Bad Grund (DE)
Appl. No. 17/438,991
Filed by Technische Universität Clausthal, Clausthal-Zellerfeld (DE); and MPM Environment Intelligence GmbH, Bad Grund (DE)
PCT Filed Feb. 27, 2020, PCT No. PCT/EP2020/055166
§ 371(c)(1), (2) Date Sep. 14, 2021,
PCT Pub. No. WO2020/182484, PCT Pub. Date Sep. 17, 2020.
Claims priority of application No. 102019106524.0 (DE), filed on Mar. 14, 2019.
Prior Publication US 2022/0153954 A1, May 19, 2022
Int. Cl. C08J 11/16 (2006.01); B29B 17/02 (2006.01)
CPC C08J 11/16 (2013.01) [B29B 17/0206 (2013.01); C08J 2363/02 (2013.01)] 8 Claims
 
1. Method for recycling a composite material comprising inorganic fibers and/or organic fibers and an epoxy-resin in a one pot reaction, wherein the method comprises reacting the composite material with a boron halide in a solvent,
wherein the boron halide is a boron trihalide, an organylboron dihalide, an organyloxyboron, dihalide or mixtures of two or more thereof, wherein the boron trihalide is selected from BCl3 and BBr3, and
wherein the solvent is a hydrocarbon, a halogenated hydrocarbon, or a mixture of two or more thereof.