公开(公告)号：US10850429B2

公开(公告)日：2020-12-01

申请号：US15523781

申请日：2015-10-07

Applicant: ARKEMA FRANCE

Inventor： Benoit Brule ,  Denis Huze ,  Nadine Decraemer ,  Jerome Pascal

IPC: B33Y70/00 ,  B29C64/314 ,  B29B7/00 ,  B29B7/10 ,  B29B13/10 ,  B29B7/72 ,  B29B7/82 ,  C08G65/40 ,  C08G65/46 ,  B29C64/153 ,  B01F3/18 ,  B01F7/00 ,  B01F15/06 ,  C08J3/00 ,  B29B9/12 ,  B33Y10/00 ,  B29K71/00

Abstract: Process for densification of a poly(arylene ether ketone) (PAEK) powder or of a mixture of poly(arylene ether ketone) (PAEK) powders, the process being mixing the powder or the mixture of powders, in a mixer equipped with a rotary stirrer including at least one blade, for a period of between 30 minutes and 120 minutes, preferably of between 30 and 60 minutes, at a blade-tip speed of between 30 m/s and 70 m/s, preferably of between 40 and 50 m/s.

公开(公告)号：US09624371B2

公开(公告)日：2017-04-18

申请号：US14920075

申请日：2015-10-22

Applicant: ARKEMA FRANCE

Inventor： Benoit Brule ,  Richard Audry ,  Jerome Pascal

IPC: C08G65/48 ,  C08L71/00

CPC classification number: C08L71/00 ,  C08G2650/40 ,  C08L2205/02 ,  C08L2205/025

Abstract: The present invention relates to a composition based on poly(ether ether ketone) (PEEK) comprising poly(ether ketone ketone) (PEKK), characterized in that the poly(ether ketone ketone) (PEKK) comprises a mixture of terephthalic and isophthalic units, the percentage by weight of terephthalic units, with respect to the sum of the terephthalic and isophthalic units, being between 55 and 85%, limits included, and preferably between 55 and 70%, the said composition comprising between 1 and 40%, limits included, preferably between 5 and 40% and more preferably still between 10 and 30% by weight of PEKK, with respect to the total weight of the composition.

公开(公告)号：US10150866B2

公开(公告)日：2018-12-11

申请号：US15520913

申请日：2015-10-09

Applicant: ARKEMA FRANCE

Inventor： Benoît Brule ,  Richard Audry ,  Jerome Pascal

IPC: C08G65/48 ,  C08L71/00

Abstract: A composition based on poly(ether ether ketone) (PEEK) including poly(ether ketone ketone) (PEKK), characterized in that the poly(ether ketone ketone) (PEKK) includes a mixture of terephthalic and isophthalic units, the percentage by weight of terephthalic units, with respect to the sum of the terephthalic and isophthalic units, being between 55 and 85%, limits included, and preferably between 55 and 70%, the composition including between 1 and 40%, limits included, preferably between 5 and 40% and more preferably still between 10 and 30% by weight of PEKK, with respect to the total weight of the composition.

公开(公告)号：US11697718B2

公开(公告)日：2023-07-11

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: C08J5/24

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

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：US20180148572A1

公开(公告)日：2018-05-31

申请号：US15830100

申请日：2017-12-04

Applicant: ARKEMA FRANCE

Inventor： Nadine Decraemer ,  Denis Huze ,  Hervé Ster ,  Jerome Pascal ,  Benoît Brule

IPC: C08L61/16

CPC classification number: C08L61/16 ,  B29B13/021 ,  B29C67/04 ,  B29K2071/00 ,  C08G65/40 ,  C08G2650/40 ,  C08J3/124 ,  C08J2371/10

Abstract: The invention relates to a process for the heat treatment of poly(arylene ether ketone ketone) powder suitable for laser sintering, and also to the powders resulting from this process.

公开(公告)号：US20180134891A1

公开(公告)日：2018-05-17

申请号：US15822444

申请日：2017-11-27

Applicant: ARKEMA FRANCE

Inventor： Nadine Decraemer ,  Denis Huze ,  Cyrille Mathieu ,  Herve Ster ,  Jerome Pascal ,  Benoit Brule

IPC: C08L61/16 ,  C08J3/14 ,  C08J3/12 ,  C08L71/00 ,  C08G61/12

CPC classification number: C08L61/16 ,  B29C64/153 ,  C08G61/127 ,  C08G2261/3442 ,  C08G2650/40 ,  C08J3/124 ,  C08J3/14 ,  C08J2371/00 ,  C08L71/00

Abstract: The present invention relates to a composition comprising at least one poly(arylene ether ketone) powder suitable for laser sintering and also to the process which makes it possible to obtain it, minimizing the amount by weight of remaining non-sintered powder after production of the part by sintering.