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1. WO2020115420 - MULTILAYER TUBULAR STRUCTURE INTENDED FOR TRANSPORTING AN AIR-CONDITIONING FLUID

Publication Number WO/2020/115420
Publication Date 11.06.2020
International Application No. PCT/FR2019/052898
International Filing Date 03.12.2019
IPC
B32B 1/08 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
1Layered products essentially having a general shape other than plane
08Tubular products
B32B 27/08 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
27Layered products essentially comprising synthetic resin
06as the main or only constituent of a layer next to another layer of a specific substance
08of synthetic resin of a different kind
B32B 27/28 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
27Layered products essentially comprising synthetic resin
28comprising copolymers of synthetic resins not wholly covered by any one of the following subgroups
B32B 27/30 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
27Layered products essentially comprising synthetic resin
30comprising vinyl resin; comprising acrylic resin
B32B 27/32 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
27Layered products essentially comprising synthetic resin
32comprising polyolefins
B32B 27/18 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
27Layered products essentially comprising synthetic resin
18characterised by the use of special additives
CPC
B32B 1/08
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
1Layered products having a general shape other than plane
08Tubular products
B32B 2250/03
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
2250Layers arrangement
033 layers
B32B 2250/24
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
2250Layers arrangement
24All layers being polymeric
B32B 2270/00
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
2270Resin or rubber layer containing a blend of at least two different polymers
B32B 2307/306
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
2307Properties of the layers or laminate
30having particular thermal properties
306Resistant to heat
B32B 2307/54
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
2307Properties of the layers or laminate
50having particular mechanical properties
54Yield strength; Tensile strength
Applicants
  • ARKEMA FRANCE [FR]/[FR]
Inventors
  • MONTANARI, Thibaut
  • DUFAURE, Nicolas
  • GEORGEL, Marie
Agents
  • JEANPETIT, Christian
Priority Data
187229204.12.2018FR
Publication Language French (FR)
Filing Language French (FR)
Designated States
Title
(EN) MULTILAYER TUBULAR STRUCTURE INTENDED FOR TRANSPORTING AN AIR-CONDITIONING FLUID
(FR) STRUCTURE TUBULAIRE MULTICOUCHE DESTINEE AU TRANSPORT D'UN FLUIDE DE CLIMATISATION
Abstract
(EN)
The present invention concerns a multilayer tubular structure (MLT) intended for transporting a heat-transfer fluid, the multilayer tubular structure comprising: - at least one layer (1) comprising a composition (1) predominantly comprising at least one long-chain polyamide having between 10 and 15 carbon atoms per nitrogen atom and comprising at least 50% aliphatic units relative to the sum of the units present in the long-chain polyamide, at least one layer (2) situated underneath this layer (1) comprising a composition (2) predominantly comprising at least one polyamide having between 4 and 9 carbon atoms per nitrogen atom, the polyamide comprising at least 50% aliphatic units relative to the sum of the units present in the polyamide, the composition (2) comprising up to 12% polyolefins, and in particular up to 6% by weight of polyolefin, relative to the total weight of the composition (2), and up to 2% by weight of at least one plasticiser relative to the total weight of the composition (2), optionally a layer (3) comprising a composition (3) as defined for the composition (1) or comprising a composition (3') predominantly comprising a short-chain polyamide having between 4 and 7 carbon atoms per nitrogen atom and at least 20%, and preferably at least 25% by weight, of at least one polyolefin relative to the total weight of the composition (3'), or a composition (4) comprising a polyamide comprising at least 50% semi-aromatic units, the layer (1) containing no continuous fibres, the layer (2) being in contact with the transported fluid when the layer (3) is not present, and the layer or layers (2) representing at least 50% of the total thickness of the tube.
(FR)
La présente invention concerne une structure tubulaire multicouche (MLT) destinée au transport d'un fluide de transfert de chaleur, ladite structure tubulaire multicouche comprenant: - au moins une couche (1) comprenant une composition (1) comprenant majoritairement au moins un polyamide à longue chaine présentant de 10 à 15 atomes de carbone par atome d'azote et comprenant au moins 50% de motifs aliphatiques par rapport à la somme des motifs présents dans ledit polyamide à longue chaine, au moins une couche (2) située au-dessous de la dite couche (1) comprenant une composition (2) comprenant majoritairement au moins un polyamide présentant de 4 à 9 atomes de carbone par atome d'azote, ledit polyamide comprenant au moins 50% de motifs aliphatiques par rapport à la somme des motifs présents dans ledit polyamide, ladite composition (2) comprenant jusqu'à 12% de polyoléfines, notamment jusqu'à 6% en poids de polyoléfine, par rapport au poids total de ladite composition (2), et jusqu'à 2% en poids d'au moins un plastifiant par rapport au poids total de ladite composition (2), optionnellement une couche (3) comprenant une composition (3) telle que définie pour la composition (1) ou comprenant une composition (3') comprenant majoritairement un polyamide à chaîne courte présentant de 4 à7 atomes de carbone par atome d'azote et au moins 20%, préférentiellement au moins 25% en poids d'au moins une polyoléfine par rapport au poids total de ladite composition (3'), ou une composition (4) comprenant un polyamide comprenant au moins 50% de motifs semi aromatiques, ladite couche (1) étant dépourvue de fibres continues, ladite couche (2) étant en contact avec ledit fluide transporté lorsque ladite couche (3) n'est pas présente, et ladite ou lesdites couche(s)(2) représentant au moins 50% de l'épaisseur totale du tube.
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