公开(公告)号：US20210340338A1

公开(公告)日：2021-11-04

申请号：US17374132

申请日：2021-07-13

Applicant: Arkema France

Inventor： Pierre NOGUES ,  Geoffroy CAMMAGE

IPC: C08J3/14 ,  C08G69/28 ,  C08G69/04 ,  C08G69/26 ,  C08G69/02 ,  A61K8/02 ,  A61K8/88 ,  A61Q19/00

Abstract: A method for producing a polycondensate powder dispersion, wherein the method includes at least one step of polycondensation: i) of at least one diester and at least one diamine, and/or ii) at least one amino ester, while stirring, in a solvent that can solubilize both the diamine and the diester and/or the amino ester but not the polyamide that forms during the polycondensation, at a temperature between 30° C. and the boiling temperature of the solvent, in order to produce a powder precipitate dispersed in the solvent.

公开(公告)号：US20230127075A1

公开(公告)日：2023-04-27

申请号：US17798227

申请日：2021-02-08

Applicant: ARKEMA FRANCE

Inventor： Geoffroy CAMMAGE ,  Benoît BRULE

IPC: C08L77/06 ,  C08G69/04 ,  C08J3/14 ,  B33Y10/00 ,  B33Y70/00 ,  B33Y80/00 ,  B29C64/153

Abstract: The present invention relates to a polyamide powder having a high glass transition temperature and to the corresponding preparation method. The invention also relates to the articles made therefrom and to a method for the production thereof.

公开(公告)号：US20220213319A1

公开(公告)日：2022-07-07

申请号：US17604789

申请日：2020-04-16

Applicant: Arkema France

Inventor： Geoffroy CAMMAGE ,  Arnaud LEMAITRE ,  Emilie-Marie SOARES LATOUR

IPC: C08L77/02 ,  B29C64/153

Abstract: The invention relates to a seeded particle of polyamide (PA) powder consisting of: a polyamide core with a D50 within the range from 15 to 60 μm, and a polyamide shell, characterized in that the shell has an inherent viscosity in solution and a melting temperature which are respectively higher than those of the core.

公开(公告)号：US20220126506A1

公开(公告)日：2022-04-28

申请号：US17430476

申请日：2020-02-13

Applicant: Arkema France

Inventor： Geoffroy CAMMAGE

IPC: B29C64/153 ,  B33Y80/00 ,  B33Y10/00 ,  B33Y70/00

Abstract: The use of at least one salified monomer powder in an additive manufacturing process. A process for the additive manufacture of an object wherein at least one salified monomer powder is used as raw material. A 3D printing product manufactured using at least one salified monomer powder. The salified monomer powder may have a volume median diameter D50 of less than or equal to 500 μm.

公开(公告)号：US20220073686A1

公开(公告)日：2022-03-10

申请号：US17312997

申请日：2019-12-11

Applicant: Arkema France

Inventor： Geoffroy CAMMAGE ,  Bertrand PERRIN

IPC: C08J3/14 ,  C08K5/05 ,  C08G65/08 ,  C08G65/20 ,  C08G69/14 ,  C08G69/26 ,  B29C64/153

Abstract: The invention relates to a copolymer powder containing polyamide blocks and polyether blocks having: an enthalpy of fusion of the polyamide blocks of greater than or equal to 70 J/g if the weight ratio of the polyamide blocks relative to the polyether blocks of the copolymer is greater than or equal to 4; an enthalpy of fusion of the polyamide blocks of greater than or equal to 50 J/g if the weight ratio of the polyamide blocks relative to the polyether blocks of the copolymer is greater than or equal to 1 and less than 4; or an enthalpy of fusion of the polyamide blocks of greater than or equal to 20 J/g if the weight ratio of the polyamide blocks relative to the polyether blocks of the copolymer is less than 1.

公开(公告)号：US20170349714A1

公开(公告)日：2017-12-07

申请号：US15539002

申请日：2015-12-22

Applicant: Arkema France

Inventor： Pierre NOGUES ,  Geoffroy CAMMAGE

IPC: C08J3/14 ,  A61K8/02 ,  A61Q19/00 ,  A61K8/88 ,  C08G69/28

CPC classification number: C08J3/14 ,  A61K8/022 ,  A61K8/88 ,  A61K2800/10 ,  A61K2800/412 ,  A61Q19/00 ,  C08G69/02 ,  C08G69/04 ,  C08G69/26 ,  C08G69/28 ,  C08J2377/06

Abstract: A method for producing a polycondensate powder dispersion, characterised in that it includes at least one step of polycondensation: i) of at least one diester and at least one diamine, and/or ii) at least one amino ester, while stirring, in a solvent that can solubilise both the diamine and the diester and/or the amino ester but not the polyamide that forms during the polycondensation, at a temperature between 30° C. and the boiling temperature of the solvent, in order to produce a powder precipitate dispersed in the solvent.

公开(公告)号：US20160152782A1

公开(公告)日：2016-06-02

申请号：US14891514

申请日：2014-05-16

Applicant: ARKEMA FRANCE

Inventor： Geoffroy CAMMAGE ,  Nicolas DUFAURE ,  Guillaume LE ,  Cyrille MATHIEU

IPC: C08J3/24 ,  B29C67/00

CPC classification number: C08J3/245 ,  A61K8/022 ,  A61K8/84 ,  A61K8/87 ,  A61K8/88 ,  A61Q1/12 ,  A61Q19/00 ,  B29C64/153 ,  B29K2077/00 ,  B29K2079/085 ,  C08G69/48 ,  C08G73/14 ,  C08J2375/04 ,  C08J2377/02 ,  C08J2379/02 ,  C08J2379/08 ,  C08J2479/08 ,  C08L77/02 ,  C08L77/06 ,  C08L79/02 ,  C08L79/08

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.

Abstract translation: 本发明涉及一种用于具有一种或多种不稳定氢功能的颗粒形式的聚合物的表面交联的方法，其包括实施交联剂的步骤，所述交联剂包含至少两个可能与所述不稳定氢功能反应的功能 聚合物，交联方法在低于聚合物熔点的温度下进行。 本发明还涉及粉末颗粒及其用途。