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1. WO2012140157 - MULTILAYER STRUCTURE INCLUDING A LAYER OF A SPECIFIC COPOLYAMIDE AND A BARRIER LAYER

Publication Number WO/2012/140157
Publication Date 18.10.2012
International Application No. PCT/EP2012/056711
International Filing Date 12.04.2012
Chapter 2 Demand Filed 04.09.2012
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 27/34 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
34comprising polyamides
F16L 11/04 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
11Hoses, i.e. flexible pipes
04made of rubber or flexible plastics
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
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 2250/24
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 2307/7265
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
70Other properties
726Permeability to liquids, absorption
7265Non-permeable
B32B 2597/00
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
2597Tubular articles, e.g. hoses, pipes
B32B 27/08
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
27Layered products comprising ; a layer of; synthetic resin
06as the main or only constituent of a layer, ; which is next to another layer of the same or of a different material
08of synthetic resin
Applicants
  • ARKEMA FRANCE [FR]/[FR] (AllExceptUS)
  • MONTANARI, Thibaut [FR]/[FR] (UsOnly)
  • MONTEZIN, Fabrice [FR]/[FR] (UsOnly)
  • VERMOGEN, Alexandre [FR]/[FR] (UsOnly)
  • BLONDEL, Philippe [FR]/[FR] (UsOnly)
  • BENET, Sylvain [FR]/[FR] (UsOnly)
Inventors
  • MONTANARI, Thibaut
  • MONTEZIN, Fabrice
  • VERMOGEN, Alexandre
  • BLONDEL, Philippe
  • BENET, Sylvain
Common Representative
  • ARKEMA FRANCE [FR]/[FR]
Priority Data
11/0117614.04.2011FR
Publication Language French (FR)
Filing Language French (FR)
Designated States
Title
(EN) MULTILAYER STRUCTURE INCLUDING A LAYER OF A SPECIFIC COPOLYAMIDE AND A BARRIER LAYER
(FR) STRUCTURE MULTICOUCHE COMPRENANT UNE COUCHE D'UN COPOLYAMIDE PARTICULIER ET UNE COUCHE BARRIÈRE
Abstract
(EN)
The invention relates to a multilayer structure including: a so-called outer layer (L1) consisting of a composition that primarily includes one or more semicrystalline copolyamides (H), the melting point of which is at least 220ºC and which contains at least 80 mol % of the following two units (s) and (a), wherein the (s) unit denotes one or more semiaromatic (s) units consisting of one of more sub-units from aromatic diacid (sr) and one or more sub-units from aliphatic diamine (sa) having 9 to 13 carbon atoms, and the (a) unit denotes one or more aliphatic units having 8 to 13 carbon atoms per nitrogen atom, the molar ratio (s)/(a) being 1 to 3; and a layer (L2) consisting of a composition primarily containing one or more tetrafluoroethylene (TFE) copolymers, said TFE copolymer being necessarily functionalized when layer (L2) is in contact with layer (L1) or with an intermediate layer that primarily includes one or more polyamides. The invention also relates to the uses of said multilayer structure for transporting fluids in the automotive field.
(FR)
L'invention porte sur une structure multicouche comprenant: - une couche (L1), dite externe, constituée d'une composition comprenant majoritairement un ou plusieurs copolyamides semi- cristallins (H) ayant une température de fusion d'au moins 220°C et comprenant au moins 80% en mol des deux motifs (s) et (a) suivants : - le motif (s) désignant un ou plusieurs motifs semi-aromatiques (s) formés d'un ou plusieurs sous-motifs issus de diacide aromatique (sr) et d'un ou plusieurs sous-motifs issus de diamine aliphatique (sa), la diamine aliphatique (sa) comprenant de 9 à 13 atomes de carbone, - le motif (a) désignant un ou plusieurs motifs aliphatiques comprenant de 8 à 13 atomes de carbone par atome d'azote, le ratio molaire (s)/(a) allant de 1 à 3, et - une couche (L2) constituée d'une composition comprenant majoritairement un ou plusieurs copolymères de tétrafluoroéthylène (TFE), ledit copolymère de TFE étant nécessairement fonctionnalisé lorsque la couche (L2) est en contact avec la couche (L1) ou en contact avec une couche intermédiaire comprenant majoritairement un ou plusieurs polyamides, ainsi que ses utilisations pour le transport de fluides dans le domaine automobile.
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