公开(公告)号：US20240247145A1

公开(公告)日：2024-07-25

申请号：US18577402

申请日：2022-07-07

Applicant: ARKEMA FRANCE

Inventor： Thomas PRENVEILLE ,  Marjorie MARCOURT ,  Sébastien VAUTIER

IPC: C08L77/06 ,  B29C48/09 ,  B29K77/00 ,  B32B27/34 ,  C08J3/12 ,  C08J11/08

CPC classification number: C08L77/06 ,  B29C48/09 ,  B32B27/34 ,  C08J3/12 ,  C08J11/08 ,  B29K2077/00 ,  B32B2272/00 ,  B32B2597/00 ,  C08J2377/06 ,  C08L2205/025 ,  C08L2207/00

Abstract: A composition including: (a) 30% to 99.8% by weight by weight of recycled material from a used single-layer and/or multilayer tube and/or tank having initially transported or contained motor vehicle fluids, the tube and/or the tank having a composition which predominantly includes at least one polyamide, the used tube and/or the used tank having been ground into granules and the fluid residues present in the tube and/or tank having been totally or partially extracted, (b) up to 70% of a semicrystalline aliphatic polyamide, (c) up to 0.2% of an additive, the polyamide of the used tube and/or the used tank having functions resulting from oxidation reactions chosen from the primary amide functions, nitriles, terminal methyl groups, alkenes, formamides, imides, carboxylic acids and alcohols and mixtures thereof, in a mole ratio greater than that of the same polyamide constituting a non-used tube and/or tank which has not yet transported or contained motor vehicle fluids.