公开(公告)号：US10808089B2

公开(公告)日：2020-10-20

申请号：US14904994

申请日：2014-07-21

Applicant: RHODIA OPERATIONS

Inventor： Louise-Anne Fillot ,  Stephane Jeol

IPC: C08J5/18 ,  B32B27/34 ,  C09J7/25 ,  E04B1/62 ,  C08G69/26 ,  C08G69/42 ,  B32B21/08 ,  B32B23/08

Abstract: The present invention relates to the use, as water vapour barrier, of a film, of a textile or of a layer of material P, said material P comprising, or even consisting of, at least one copolymer A which is a polyamide of PAXY/XAIS Mn+1/n type or of PAZ/XAISMn+1/n type. It also relates to a construction element comprising a film, a textile or a layer of said material P and a construction material.

公开(公告)号：US09688823B2

公开(公告)日：2017-06-27

申请号：US14442457

申请日：2013-11-13

Applicant: RHODIA OPERATIONS ,  CNRS

Inventor： Naji Hussein ,  Didier Long ,  Louise-Anne Fillot ,  Lise Trouillet-Fonti

IPC: C08G81/00 ,  C08J3/20 ,  C08G69/26 ,  C08G69/28 ,  C08L77/06

CPC classification number: C08G81/00 ,  C08G69/265 ,  C08G69/28 ,  C08J3/203 ,  C08J2377/00 ,  C08L77/06

Abstract: The invention relates to a method for the melted production, especially by reactive extrusion, of block copolyamide comprising at least one aliphatic polyamide block and at least one semi-aromatic block, especially wherein the aromatic group has at least one hydroxyl or sulfonate function. The invention also relates to the block copolyamide that can be produced by said method; to a composition comprising the block copolyamide; to granules comprising such a copolyamide or such a composition; to a method for producing an item from a copolyamide or a composition of said copolyamide; and to uses of the copolyamide.