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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
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.