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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.
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公开(公告)号：US11407906B2
公开(公告)日：2022-08-09
申请号：US16044939
申请日：2018-07-25
Applicant: ARKEMA FRANCE
Inventor： Benoît Brule , Hervé Ster , Cyrille Mathieu , Nadine Decraemer
IPC: C09D7/61 , C08K3/22 , C08K3/36 , C08L71/00 , B29C64/153 , B33Y10/00 , B33Y70/00 , B33Y80/00 , C09D5/03 , C09D171/00 , B29K71/00 , B29K105/00
Abstract: A method for producing a surface coated with a coating having an improved coalescence, the method including: providing a composition comprising from 99.6% to 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, the hydrophilic flow agent being hydrophilic silica; depositing the composition onto a surface forming a coated surface; and baking the coated surface to form a film on the surface.
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公开(公告)号：US10906207B2
公开(公告)日：2021-02-02
申请号：US14357430
申请日：2012-11-06
Applicant: Arkema France
Inventor： Cyrille Mathieu , Karine Huraux
IPC: B29B13/00 , B29C64/153 , B02C19/06 , B29B13/10 , C08J3/12
Abstract: The present invention relates to an improved method of grinding polyaryletherketones, providing very good yields and the production of powders of polyaryletherketones with an average diameter below 100 μm having a narrow size distribution with few fine particles (Dv10>15 μm).
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公开(公告)号：US11691315B2
公开(公告)日：2023-07-04
申请号：US17146960
申请日：2021-01-12
Applicant: Arkema France
Inventor： Cyrille Mathieu , Karine Huraux
IPC: B29B13/00 , B29C64/153 , B02C19/06 , C08J3/12 , B29B13/10
CPC classification number: B29B13/10 , B02C19/06 , B29C64/153 , C08J3/12 , C08J2371/10 , Y10T428/2982
Abstract: An improved method of grinding polyaryletherketones, providing very good yields and the production of powders of polyaryletherketones with an average diameter below 100 μm having a narrow size distribution with few fine particles (Dv10>15 μm). Method of grinding polyaryletherketones of apparent density below 0.9 carried out in a temperature range between 0° C. and the glass transition temperature of the polymer measured by DSC, in order to obtain powders having a particle size distribution (diameters by volume) of d10>15 μm, 50
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公开(公告)号：US20210129386A1
公开(公告)日：2021-05-06
申请号：US17146960
申请日：2021-01-12
Applicant: Arkema France
Inventor： Cyrille Mathieu , Karine Huraux
IPC: B29B13/10 , C08J3/12 , B29C64/153 , B02C19/06
Abstract: An improved method of grinding polyaryletherketones, providing very good yields and the production of powders of polyaryletherketones with an average diameter below 100 μm having a narrow size distribution with few fine particles (Dv10>15 μm). Method of grinding polyaryletherketones of apparent density below 0.9 carried out in a temperature range between 0° C. and the glass transition temperature of the polymer measured by DSC, in order to obtain powders having a particle size distribution (diameters by volume) of d10>15 μm, 50
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Patent Agency Ranking
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
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.
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公开(公告)号：US20140322441A1
公开(公告)日：2014-10-30
申请号：US14357430
申请日：2012-11-06
Applicant: Arkema France
Inventor： Cyrille Mathieu , Karine Huraux
CPC classification number: B29B13/10 , B02C19/06 , B29C64/153 , C08J3/12 , C08J2371/10 , Y10T428/2982
Abstract: The present invention relates to an improved method of grinding polyaryletherketones, providing very good yields and the production of powders of polyaryletherketones with an average diameter below 100 μm having a narrow size distribution with few fine particles (Dv10>15 μm).
Abstract translation: 本发明涉及一种研磨聚芳醚酮的改进方法，提供非常好的收率和生产平均粒径小于100μm的聚芳醚酮粉末，其具有窄的粒度分布，几乎没有细颗粒（Dv10>15μm）。
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公开(公告)号：US11718045B2
公开(公告)日：2023-08-08
申请号：US17088033
申请日：2020-11-03
Applicant: Arkema France
Inventor： Gregory Filou , Cyrille Mathieu , Holger Senff
IPC: C08G69/26 , B29C67/04 , C08G69/04 , C08G69/08 , C08G69/16 , C08G69/28 , C08G69/44 , C08J3/12 , C08J3/28 , B29C64/153 , C08J3/14 , B29K77/00
CPC classification number: B29C67/04 , B29C64/153 , C08G69/04 , C08G69/08 , C08G69/16 , C08G69/26 , C08G69/28 , C08G69/44 , C08J3/12 , C08J3/14 , C08J3/28 , B29K2077/00
Abstract: A method for reducing the crystallization temperature and the melting temperature of a polyamide powder resulting from the polymerization of at least one predominant monomer, in which the reduction in the crystallization temperature is greater than the reduction in the melting temperature, the method including a step of polymerization of the at least one predominant monomer with at least one different minor comonomer polymerized according to the same polymerization process as the at least one predominant monomer, the at least one minor comonomer being chosen from aminocarboxylic acids, diamine/diacid pairs, lactams and/or lactones, and the at least one minor comonomer representing from 0.1% to 20% by weight of the total blend of the monomers(s) and comonomer(s), preferably from 0.5% to 15% by weight of the total blend, preferably from 1% to 10% by weight of the total blend.
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公开(公告)号：US10400097B2
公开(公告)日：2019-09-03
申请号：US15574324
申请日：2016-07-27
Applicant: Arkema France
Inventor： Anthony Bonnet , Cyrille Mathieu , Alejandra Reyna-Valencia , Barbara Ramfel (Epouse Wiegert) , Christophe Degoulet
Abstract: The present invention concerns a fluorinated polymer composition, methods for producing same, and products that can be produced from said composition. More particularly, the invention concerns a thermoplastic polymer composition comprising the following components A, B and C: A—a polyvinylidene fluoride (PVDF) homopolymer comprising a fraction of ultra high molecular weight chains (UHMCF); B—a vinylidene fluoride (VDF) elastomeric copolymer and at least one other fluorinated comonomer copolymerisable with VDF, and C—a VDF homopolymer having a lower viscosity than component A.
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公开(公告)号：US10400073B2
公开(公告)日：2019-09-03
申请号：US14891514
申请日：2014-05-16
Applicant: Arkema France
Inventor： Geoffroy Cammage , Nicolas Dufaure , Guillaume Le , Cyrille Mathieu
IPC: C08L77/00 , C08G69/00 , C08J3/24 , A61K8/88 , C08G73/14 , A61Q1/12 , A61Q19/00 , A61K8/84 , A61K8/87 , A61K8/02 , C08G69/48 , C08L77/02 , C08L77/06 , C08L79/02 , C08L79/08 , B29C64/153 , B29K77/00 , B29K79/00
Abstract: The invention concerns a method for the surface crosslinking of a polymer, in particle form, having one or a plurality of labile hydrogen functions, comprising a step of implementing a crosslinking agent comprising at least two functions likely to react with the labile hydrogen functions of the polymer, the crosslinking method being carried out at a temperature lower than the melting point of the polymer. The invention also concerns a powder particle and the uses of same.
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