EP 4153683 A1 20230329 - MULTILAYER STRUCTURE BASED ON RECYCLED POLYAMIDE
Title (en)
MULTILAYER STRUCTURE BASED ON RECYCLED POLYAMIDE
Title (de)
MEHRSCHICHTIGE STRUKTUR AUF BASIS VON RECYCLINGPOLYAMID
Title (fr)
STRUCTURE MULTICOUCHE A BASE DE POLYAMIDE RECYCLE
Publication
Application
Priority
- FR 2005006 A 20200519
- FR 2021050856 W 20210518
Abstract (en)
[origin: WO2021234263A1] The present invention relates to a multilayer tubular structure (MLT) for transporting fluids for a motor vehicle, in particular air, oil, water, a urea solution, a glycol-based coolant, or a fuel such as gasoline, in particular alcohol-based gasoline, bio-gasoline or diesel, in particular bio-diesel, or hydrogen, said structure comprising at least three layers: at least one layer (1) consisting of a composition predominantly comprising at least one semi-crystalline aliphatic polyamide, said composition consisting of at least 50% of recycled material from a single-layer and/or multilayer tube that has been intended for transporting fluids for a motor vehicle, in particular as defined above, said tube consisting of a composition which predominantly comprises at least one polyamide, at least one layer (2) consisting of a composition predominantly comprising at least semi-crystalline aliphatic polyamide and optionally at least one impact modifier, and when the layer (2) consists of a composition predominantly comprising at least one semi-crystalline aliphatic polyamide that is PA12 and/or PA612 and/or PA1010, then said composition comprises said impact modifier, and at least one barrier layer, said layer (2) and the barrier layer each consisting of at least 90% of non-recycled material.
IPC 8 full level
C08L 77/00 (2006.01); B32B 1/08 (2006.01); B32B 27/08 (2006.01); B32B 27/34 (2006.01); C08K 5/00 (2006.01); C08K 5/13 (2006.01); C08K 5/435 (2006.01); C08K 5/526 (2006.01); C08L 77/02 (2006.01); C08L 77/06 (2006.01); C08L 77/10 (2006.01)
CPC (source: EP KR US)
B32B 1/08 (2013.01 - EP KR US); B32B 27/08 (2013.01 - EP KR US); B32B 27/18 (2013.01 - US); B32B 27/34 (2013.01 - EP KR US); C08K 5/13 (2013.01 - EP); C08K 5/1535 (2013.01 - KR); C08K 5/17 (2013.01 - KR); C08K 5/435 (2013.01 - EP); C08K 5/526 (2013.01 - EP); C08L 77/00 (2013.01 - EP); C08L 77/02 (2013.01 - EP KR); C08L 77/06 (2013.01 - EP KR); C08L 77/10 (2013.01 - EP KR); H02K 1/27 (2013.01 - KR); B32B 2250/03 (2013.01 - EP US); B32B 2250/24 (2013.01 - EP US); B32B 2272/00 (2013.01 - EP US); B32B 2307/558 (2013.01 - EP); B32B 2307/704 (2013.01 - US); B32B 2307/7265 (2013.01 - US); B32B 2597/00 (2013.01 - EP US); B32B 2605/08 (2013.01 - US); C08K 5/0016 (2013.01 - EP)
Citation (search report)
See references of WO 2021234263A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
FR 3110583 A1 20211126; CN 115667401 A 20230131; EP 4153683 A1 20230329; JP 2023526802 A 20230623; KR 20230013046 A 20230126; US 2023191756 A1 20230622; WO 2021234263 A1 20211125
DOCDB simple family (application)
FR 2005006 A 20200519; CN 202180036140 A 20210518; EP 21732468 A 20210518; FR 2021050856 W 20210518; JP 2022570114 A 20210518; KR 20227043207 A 20210518; US 202117999127 A 20210518