公开(公告)号：US20190084252A1

公开(公告)日：2019-03-21

申请号：US16078399

申请日：2017-12-20

Applicant: Arkema France

Inventor： Gilles Hochstetter ,  Arthur Pierre Babeau ,  Thibaut Savart ,  Francois Tanguy ,  Denis Huze ,  Mathieu Capelot ,  Patrice Gaillard

IPC: B29C70/52 ,  B29C70/20 ,  B29C70/08 ,  B29B15/12 ,  B01J8/38

Abstract: The invention relates to a process for manufacturing a preimpregnated fibrous material containing a fibrous material made of continuous fibers and at least one thermoplastic polymer matrix, wherein the preimpregnated fibrous material is produced as a single unidirectional tape or of a plurality of parallel unidirectional tapes and wherein the process includes a step of impregnating, in particular fully and homogeneously, the fibrous material that is in the form of a roving or of several parallel rovings with the at least one thermoplastic polymer matrix that is in powder form, the impregnating step being carried out by a dry route in a tank and the control of the amount of the at least one thermoplastic polymer matrix in said fibrous material being achieved by control of the residence time of said fibrous material in the powder, with the exclusion of any electrostatic process with intentional charging.

公开(公告)号：US09909235B2

公开(公告)日：2018-03-06

申请号：US14437701

申请日：2013-10-18

Applicant: ARKEMA FRANCE

Inventor： Alexander Korzhenko ,  Patrice Gaillard ,  Andriy Tymoshenko ,  Anatolly Goryashkin ,  Dimitry Zakharov

IPC: C01B31/02 ,  D01F9/16 ,  D06M11/74 ,  D01F1/10 ,  D01F2/00 ,  C08L1/26 ,  D06M101/06

CPC classification number: D01F9/16 ,  C08L1/26 ,  D01F1/10 ,  D01F2/00 ,  D06M11/74 ,  D06M2101/06

Abstract: A method for manufacturing a continuous carbon fiber from a precursor material. According to this method, a precursor material including a continuous natural fiber and carbon nanofillers is used, said natural fiber being obtained from at least one plant constituent such as a cellulose. A process for manufacturing a continuous carbon fiber from a precursor material, including a step of carbonization of said precursor material, in which the precursor material includes a continuous natural fiber and carbon nanofillers, said natural fiber being obtained from at least one plant constituent, wherein it also includes a step of sizing the precursor material before the carbonization step.