公开(公告)号：US20220396713A1

公开(公告)日：2022-12-15

申请号：US17681333

申请日：2022-02-25

Applicant: Arkema France

Inventor： Gregory FILOU ,  Cyrille MATHIEU

IPC: C09D177/02 ,  C09D7/40 ,  C09D5/03 ,  A47L15/50 ,  C09D7/61 ,  C09D7/62

Abstract: A pulverulent composition for the manufacture of articles having a metallic appearance that is stable over time and an improved resistance to penciling, the composition including: from 50 to 99.9% by weight of at least one thermoplastic polymer, from 0.1 to 5% by weight of at least one effect pigment, from 0 to 0.3% by weight of at least one metallic pigment relative to the total weight of the composition.

公开(公告)号：US20180361681A1

公开(公告)日：2018-12-20

申请号：US15977428

申请日：2018-05-11

Applicant: Arkema France

Inventor： Gregory FILOU ,  Cyrille MATHIEU ,  Holger SENFF

IPC: B29C67/04 ,  C08J3/28 ,  C08J3/14 ,  C08J3/12 ,  C08G69/44 ,  C08G69/28 ,  B29C64/153 ,  C08G69/16 ,  C08G69/08 ,  C08G69/04 ,  C08G69/26 ,  B29K77/00

Abstract: The present invention relates to a method for reducing the crystallization temperature an 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, said method comprising a step of polymerization of said at least one predominant monomer with at least one different minor comonomer polymerized according to the same polymerization process as said at least one predominant monomer, said at least one minor comonomer being chosen from aminocarboxylic acids, diamine/diacid pairs, lactams and/or lactones, and said at least one minor comonomer representing from 0.1% to 20% by weight of the total blend of said monomers(s) and comonomer(s), preferably from 0.5% to 15% by weight of said total blend, preferably from 1% to 10% by weight of said total blend.

公开(公告)号：US20210107235A1

公开(公告)日：2021-04-15

申请号：US17088033

申请日：2020-11-03

Applicant: Arkema France

Inventor： Gregory FILOU ,  Cyrille MATHIEU ,  Holger SENFF

IPC: B29C67/04 ,  C08G69/04 ,  C08G69/08 ,  C08G69/16 ,  C08G69/26 ,  C08G69/28 ,  C08G69/44 ,  C08J3/12 ,  C08J3/28 ,  B29C64/153 ,  C08J3/14

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.