公开(公告)号：US20200079984A1

公开(公告)日：2020-03-12

申请号：US16468931

申请日：2017-12-22

Applicant: Arkema France

Inventor： Benoît BRULE ,  Holger VANDRICH

IPC: C09K3/14 ,  C08G65/40 ,  C08L71/00 ,  C08K7/06 ,  C08K3/04

Abstract: A wear and friction article, including on at least one of the surfaces thereof a polymeric material comprising: 20 to 100% by weight of at least one polyetherketoneketone (PEKK); 0 to 80% by weight of one or more fillers; and 0 to 20% by weight of one or more additives. Also, the use of such a polymeric material for reducing wear and/or friction at elevated temperature.

公开(公告)号：US20190264045A1

公开(公告)日：2019-08-29

申请号：US16097728

申请日：2017-05-02

Applicant: Arkema France

Inventor： Benoît BRULE ,  Jérôme Amstutz ,  Guillaume Le ,  Julien Jouanneau

IPC: C09D11/102 ,  C08G65/40 ,  C08G65/46 ,  B29C64/153 ,  B33Y10/00 ,  B33Y70/00

Abstract: Provided is a composition suitable for a process of building a three-dimensional object layer-by-layer by electromagnetic radiation-generated sintering, including at least one poly(aryl-ether-ketone) (PAEK), where the composition has an aromatic ether content of from 0 and 0.4% by mass, based on the total mass of the composition, and an aluminium mass content of lower than 1000 ppm. The composition may be used in process for building an object comprising sintering the composition with electromagnetic radiation. The present invention also includes a three-dimensional object obtained by such a process. A process for preparing the composition is also provided.

公开(公告)号：US20190241739A1

公开(公告)日：2019-08-08

申请号：US16342368

申请日：2017-10-18

Applicant: Arkema France

Inventor： Benoît BRULE ,  Antoine BREUIL ,  Hao WANG ,  Xiong YAO

IPC: C08L77/06 ,  C08L77/02 ,  C08K7/14

CPC classification number: C08L77/06 ,  C08K7/14 ,  C08L77/02 ,  C08L2203/20 ,  C08L2205/025 ,  C08L77/00

Abstract: The use of circular-section glass fibres in a mixture including at least one MXDZ polyamide, obtained from polycondensation of meta-xylylenediamine (MXD), with a C6 to C18 aliphatic (Z) dicarboxylic acid, and at least one aliphatic polyamide A obtained from the polycondensation of a unit selected from: a C6 to C12 lactam, a C6 to C12 amino acid, and an XY unit obtained from the polycondensation of a C4 to C18 aliphatic diamine (X), and a C6 to C18 aliphatic dicarboxylic acid (Y), circular-section glass fibres and optionally at least one impact modifier and/or at least one additive, said circular-section glass fibres and said mixture constituting a composition, said circular-section glass fibres being present from 30 to 75% by weight and with respect to the total weight of the composition, to improve the mechanical properties of said composition, including elongation at break, after processing, in particular by injection or compression moulding.

公开(公告)号：US20190040269A1

公开(公告)日：2019-02-07

申请号：US16044939

申请日：2018-07-25

Applicant: ARKEMA FRANCE

Inventor： Benoît BRULE ,  Hervé Ster ,  Cyrille Mathieu ,  Nadine Decraemer

IPC: C09D5/03 ,  B33Y70/00 ,  B33Y80/00 ,  B29C64/153 ,  C08K3/36 ,  C09D7/61 ,  C08L71/00 ,  B33Y10/00 ,  C09D171/00 ,  C08K3/22 ,  B29K71/00 ,  B29K105/00

Abstract: A powder composition of polyarylene ether ketone ketones allowing an excellent castability/coalescence balance suitable for laser sintering. A composition including between 99.6 and 99.99% by weight of at least one powder of at least one polyarylene ether ketone and 0.01 to 0.4% by weight of a hydrophilic flow agent. This hydrophilic flow agent is characterized by an increase in mass (quantity of water absorbed) of more than 0.5% after 5 days of conditioning at a relative humidity of 95%. This increase in mass of the flow agent is determined by means of a Karl Fischer measurement after desorption of the water by a 5-minute treatment at 170° C. This composition is suitable for laser sintering. In particular, it gives the powder an excellent castability/coalescence balance.