EP 3941968 A1 20220126 - COPOLYAMIDE COMPOSITIONS COMPRISING REINFORCING FIBERS AND HAVING HIGH MODULUS STABILITY AND USES THEREOF
Title (en)
COPOLYAMIDE COMPOSITIONS COMPRISING REINFORCING FIBERS AND HAVING HIGH MODULUS STABILITY AND USES THEREOF
Title (de)
COPOLYAMID-ZUSAMMENSETZUNGEN MIT VERSTÄRKUNGSFASERN UND HOHEM MODUL UND DEREN VERWENDUNGEN
Title (fr)
COMPOSITIONS DE COPOLYAMIDES COMPRENANT DES FIBRES DE RENFORTS ET PRESENTANT UNE STABILITE DE MODULE ELEVEE ET LEURS UTILISATIONS
Publication
Application
Priority
- FR 1902916 A 20190321
- FR 2020050537 W 20200313
Abstract (en)
[origin: WO2020188203A1] The present invention relates to the use of a copolyamide comprising at least two distinct units A and X 1 Y of formula A/X 1 Y, wherein: - A is a repeating unit obtained by polycondensation of: at least one C 9 to C 18 , preferably C 10 to C 18 , more preferably C 10 to C 12 amino acid, or at least one C 9 to C 18 , preferably C 10 to C 18 , more preferably C 10 to C 12 lactam, or at least one C 4 -C 36 , preferably C 6 -C 18 , preferably C 6 -C 12 , more preferably C 10 -C 12 diamine Ca, with at least one C 4 -C 36 , preferably C 6 -C 18 , preferably C 6 -C 12 , more preferably C 10 -C 12 dicarboxylic acid Cb; - X 1 Y is a repeating unit obtained from the polycondensation of at least one C 9 to C 18 , preferably C 10 to C 18 , more preferably C 10 to C 12 linear aliphatic diamine (X 1 ), and at least one aromatic dicarboxylic acid (Y), to prepare a composition comprising between 35 and 65%, and preferably between 50 and 65% by weight of reinforcing fibers, relative to the total weight of the composition, and for which the flexural modulus or tensile modulus, measured after an identical conditioning, does not vary by more than 20% in the temperature range from 20°C to 40°C, in particular in the temperature range from 0°C to 40°C, more particularly in the temperature range from -10°C to 40°C.
IPC 8 full level
C08G 69/26 (2006.01); C08G 69/36 (2006.01); C08L 77/06 (2006.01)
CPC (source: CN EP KR US)
C08G 69/265 (2013.01 - CN EP KR); C08G 69/36 (2013.01 - CN EP KR); C08J 5/043 (2013.01 - CN KR US); C08L 77/02 (2013.01 - US); C08L 77/04 (2013.01 - US); C08L 77/06 (2013.01 - EP KR US); C08J 2377/00 (2013.01 - CN); C08J 2377/02 (2013.01 - US); C08J 2377/04 (2013.01 - US); C08J 2377/06 (2013.01 - CN KR US); C08K 7/14 (2013.01 - CN); C08K 2201/002 (2013.01 - CN); C08L 2203/20 (2013.01 - US)
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
DOCDB simple family (publication)
WO 2020188203 A1 20200924; CN 113785018 A 20211210; EP 3941968 A1 20220126; FR 3094010 A1 20200925; FR 3094010 B1 20211008; JP 2022526097 A 20220523; KR 20210141625 A 20211123; US 2022153998 A1 20220519
DOCDB simple family (application)
FR 2020050537 W 20200313; CN 202080032776 A 20200313; EP 20726194 A 20200313; FR 1902916 A 20190321; JP 2021556226 A 20200313; KR 20217033792 A 20200313; US 202017439298 A 20200313