公开(公告)号：US11498249B2

公开(公告)日：2022-11-15

申请号：US17057455

申请日：2019-05-21

Applicant: Rhodia Operations ,  GEORGES PERNOUD SAS ,  BILLION SAS

Inventor： Gilles Orange ,  Fabien Pascal ,  Patrice Jacquet ,  Alexandre Giroud

IPC: B29C70/34 ,  B29C45/00 ,  B29C70/46 ,  B29C70/48 ,  C08J5/04 ,  B29C45/56 ,  B29K81/00 ,  B29K105/00 ,  B29K307/04

Abstract: The present invention relates to the use of thermoplastic polymer compositions for impregnating reinforcing materials in the form of fabric or industrial fabrics for the manufacture of composite materials. The field of the invention is that of composite materials as well as molding/consolidation processes and obtained parts. The invention more particularly relates to a method of manufacturing a composite article by injection molding comprising at least the steps of introducing at least one reinforcement fabric into a preheated mold, partial closure of the mold, a temperature rise step of the mold, optionally a step of maintaining the temperature of the mold before injection of a thermoplastic polymer composition, a step of injecting a thermoplastic polymer composition into the mold, a step of mold closure to the final part thickness allowing the flow of the resin through the reinforcing fabric, a cooling step and a recovery step of the obtained composite article.

公开(公告)号：US20210197428A1

公开(公告)日：2021-07-01

申请号：US17057455

申请日：2019-05-21

Applicant: Rhodia Operations ,  GEORGES PERNOUD SAS ,  BILLION SAS

Inventor： Gilles ORANGE ,  Fabien PASCAL ,  Patrice JACQUET ,  Alexandre GIROUD

IPC: B29C45/00 ,  C08J5/04 ,  B29C70/46 ,  B29C70/48

Abstract: The present invention relates to the use of thermoplastic polymer compositions for impregnating reinforcing materials in the form of fabric or industrial fabrics for the manufacture of composite materials. The field of the invention is that of composite materials as well as molding/consolidation processes and obtained parts. The invention more particularly relates to a method of manufacturing a composite article by injection molding comprising at least the steps of introducing at least one reinforcement fabric into a preheated mold, partial closure of the mold, a temperature rise step of the mold, optionally a step of maintaining the temperature of the mold before injection of a thermoplastic polymer composition, a step of injecting a thermoplastic polymer composition into the mold, a step of mold closure to the final part thickness allowing the flow of the resin through the reinforcing fabric, a cooling step and a recovery step of the obtained composite article.