Invention Publication
- Patent Title: MULTILAYER STRUCTURE BASED ON RECYCLED POLYAMIDE
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Application No.: US17999132Application Date: 2021-05-18
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Publication No.: US20230193025A1Publication Date: 2023-06-22
- Inventor: Thibaut MONTANARI , Bertrand VERBAUWHEDE , Thierry VASSELIN , Pierre NIDERCORN
- Applicant: ARKEMA FRANCE
- Applicant Address: FR Colombes
- Assignee: ARKEMA FRANCE
- Current Assignee: ARKEMA FRANCE
- Current Assignee Address: FR Colombes
- Priority: FR 05007 2020.05.19
- International Application: PCT/FR2021/050858 2021.05.18
- Date entered country: 2022-11-17
- Main IPC: C08L77/04
- IPC: C08L77/04 ; B32B1/08 ; B32B27/34 ; B32B7/12 ; B32B27/20 ; B32B27/22 ; B32B7/02 ; B32B27/08 ; F16L11/04

Abstract:
A multilayer tubular structure for transporting fluids for a motor vehicle, including at least three layers: at least one layer having a composition predominantly including at least one semi-crystalline aliphatic polyamide, the composition having at least 50% of recycled material from a multilayer tube that has been intended for transporting fluids for a motor vehicle, the tube having a composition which predominantly includes at least one polyamide, at least one layer having a composition predominantly including at least one semi-crystalline aliphatic polyamide and optionally at least one impact modifier, and when the layer has a composition predominantly including at least one semi-crystalline aliphatic polyamide that is PA12 and/or PA612 and/or PA1010, then the composition includes the impact modifier, and at least one layer having a composition predominantly including at least one semi-crystalline aliphatic polyamide, the layer and the layer each having at least 90% of non-recycled material.
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