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1. (WO2018202918) METHOD FOR PRODUCING A COMPOSITE MATERIAL

Pub. No.:    WO/2018/202918    International Application No.:    PCT/EP2018/061725
Publication Date: Fri Nov 09 00:59:59 CET 2018 International Filing Date: Tue May 08 01:59:59 CEST 2018
IPC: C08J 5/04
C08G 63/672
C08G 63/183
Applicants: ROQUETTE FRERES
Inventors: AMEDRO, Hélène
CORPART, Jean-Marc
JACQUEL, Nicolas
SAINT-LOUP, René
Title: METHOD FOR PRODUCING A COMPOSITE MATERIAL
Abstract:
A method for producing a composite material, said method comprising the following steps: a) providing a polymer, b) providing natural fibres, c) preparing a composite material from said fibres and said thermoplastic polymer, said method being characterised in that the polymer is a thermoplastic polyester comprising at least one 1,4: 3,6-dianhydrohexitol unit (A), at least one alicyclic diol unit (B) other than the 1,4: 3,6-dianhydrohexitol units (A), at least one terephthalic acid unit (C), in which the ratio (A)/[(A) + (B) ] is at least 0.05 and at most 0.75, said polyester being free of non-cyclic aliphatic diol units or comprising a molar amount of non-cyclic aliphatic diol units, relative to the total monomeric units in the polyester, of less than 5%, and having a reduced viscosity in solution (25°C; phenol (50% m): ortho-dichlorobenzene (50% m); 5 g/L of polyester) greater than 50 m L/g.