公开(公告)号：US20210130557A1

公开(公告)日：2021-05-06

申请号：US16500160

申请日：2018-04-05

Applicant: Arkema France

Inventor： Benoît BRULE ,  Henri-Alexandre CAYZAC ,  Guillaume LE ,  Jerome PASCAL ,  Fabien SGUERRA

IPC: C08J5/10 ,  C08J5/24

Abstract: The invention is targeted mainly at a process for the preparation of a semifinished product comprising a PAEK-based resin and reinforcing fibers, comprising the stages of: a. preparation of a dispersion comprising a PAEK-based resin in the pulverulent form dispersed in an aqueous phase comprising a surfactant; b. bringing the reinforcing fibers into contact with said aqueous dispersion; c. drying the fibers impregnated with dispersion; and d. heating the impregnated fibers to a temperature sufficient for the melting of the resin, so as to form a semifinished product, characterized in that the surfactant is a thermally stable surfactant. It is furthermore targeted at the dispersion of use in said process. Finally, it is targeted at the semifinished products capable of being obtained and also at their use in the manufacture of composite materials.

公开(公告)号：US20230374237A1

公开(公告)日：2023-11-23

申请号：US18321904

申请日：2023-05-23

Applicant: ARKEMA FRANCE

Inventor： Benoît BRULE ,  Henri-Alexandre CAYZAC ,  Guillaume LE ,  Jerome PASCAL ,  Fabien SGUERRA

IPC: C08J5/24

CPC classification number: C08J5/249 ,  C08J2300/22 ,  C08J2329/10 ,  C08J2329/12 ,  C08J2361/18

Abstract: A process for the preparation of a semifinished product including a PAEK-based resin and reinforcing fibers, including the stages of: a. preparation of a dispersion including a PAEK-based resin in the pulverulent form dispersed in an aqueous phase including a surfactant; b. bringing the reinforcing fibers into contact with said aqueous dispersion; c. drying the fibers impregnated with dispersion; and d. heating the impregnated fibers to a temperature sufficient for the melting of the resin, so as to form a semifinished product, wherein the surfactant is a thermally stable surfactant. Also, semifinished products capable of being obtained from the process and their use in the manufacture of composite materials.

公开(公告)号：US20210363346A1

公开(公告)日：2021-11-25

申请号：US16763725

申请日：2018-11-12

Applicant: ARKEMA FRANCE

Inventor： Guillaume LE ,  Fabien SGUERRA ,  Julien JOUANNEAU

IPC: C08L71/00 ,  C08J5/24 ,  D06M15/53 ,  D06M15/63 ,  D06M15/705

Abstract: The use of a sulfonated polyaryl ether ketone or of a sulfonated non-polymeric aryl ether ketone as a dispersant for a polyaryl ether ketone resin powder in an aqueous solution, and also to a corresponding composition, and to a process for preparing a semifinished product comprising a polyaryl ether ketone resin and reinforcing fibers.

公开(公告)号：US20200262989A1

公开(公告)日：2020-08-20

申请号：US16648180

申请日：2018-09-13

Applicant: Arkema France

Inventor： Guillaume LE ,  Fabien SGUERRA

IPC: C08J5/10 ,  C08J5/04 ,  C08J5/24 ,  B29B11/16

Abstract: A process for preparing a semifinished product comprising a PAEK-based resin and reinforcing fibers, including: preparing a dispersion comprising a PAEK-based resin in pulverulent form dispersed in an aqueous phase including at least one volatile organic compound and optionally a surfactant; bringing the reinforcing fibers into contact with said aqueous dispersion; drying the fibers impregnated with dispersion; and heating the impregnated fibers to a temperature sufficient for the melting of the resin, so as to form a semifinished product, wherein the aqueous phase of the dispersion has a dynamic viscosity, measured at 25° C. under a shear stress of 6.8 s−1 on a Brookfield DV2T Extra viscometer, is between 0.1 and 25 Pa·s; and wherein when the surfactant is present, its content is less than 1% by weight relative to the mass of dispersed resin.