公开(公告)号：US20190184619A1

公开(公告)日：2019-06-20

申请号：US15842982

申请日：2017-12-15

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Matthew Simonin ,  Leira C Sanchez Quinones ,  William R Rodgers ,  Ryan Gergely

IPC: B29C47/00 ,  B29C47/10 ,  B29C47/38 ,  B29C47/80

CPC classification number: B29C48/05 ,  B29C48/022 ,  B29C48/2886 ,  B29C48/397 ,  B29C48/802 ,  B29C2948/92209 ,  B29K2101/12 ,  B29K2105/12 ,  B29K2105/25 ,  B29K2105/26 ,  B29K2277/00 ,  B29K2301/12 ,  B29L2031/731 ,  B33Y70/00

Abstract: A method of manufacturing a long fiber reinforced thermoplastic filament includes disposing a mixture of fibrous material and thermoplastic material into a hopper of an extruder device and introducing the mixture into the extruder and through an extensional flow die to preserve longer fiber lengths. From the extensional flow die the mixture is passed through a drawing die to create the long fiber reinforced filament.