公开(公告)号：US11384200B2

公开(公告)日：2022-07-12

申请号：US15812653

申请日：2017-11-14

Applicant: ARKEMA FRANCE

Inventor： Benjamin Saillard ,  Philippe Blondel ,  Claire Isabelle Michalowicz

IPC: C08G69/26 ,  C08L77/06 ,  C08G69/36 ,  C08J5/18 ,  C08L77/00 ,  C08L77/12

Abstract: The present invention relates to a copolyamide comprising at least two units and corresponding to the following general formula: A/(diamine)·(Cw diacid), in which: the diamine is a cycloaliphatic diamine, w represents the number of carbon atoms of the diacid, A is chosen from a unit obtained from an amino acid or from a lactam and a unit corresponding to the formula (Cx diamine)·(Cy diacid), with x representing the number of carbon atoms of the diamine and y representing the number of carbon atoms of the diacid, and in which at least one of the monomers chosen from A and the Cw diacid is obtained, in all or part, from renewable starting materials according to Standard ASTM D6866. The invention also relates to a composition comprising this copolyamide and to the use of this copolyamide and of such a composition.

公开(公告)号：US12252615B2

公开(公告)日：2025-03-18

申请号：US17286118

申请日：2019-10-17

Applicant: Arkema France

Inventor： Mathieu Sabard ,  Philippe Blondel ,  Benjamin Saillard ,  Frédéric Malet

IPC: C08L77/06 ,  C08L51/04 ,  C08G69/36 ,  C08L33/12 ,  C08L53/00

Abstract: A polyamide-based polymer composition including: a) 50% to 98% by weight of a transparent amorphous polyamide; b) 1% to 15% by weight of a polymer in the form of core-shell particles; and c) 1% to 15% by weight of a polyether block and polyamide block copolymer, wherein the polyether block and polyamide block copolymer has: as a 2 mm layer, a transmittance at 560 nm of 90% or more; and a refractive index that does not differ by more than 0.01 from that of the transparent amorphous polyamide and wherein the polymer in the form of core-shell particles has a refractive index that does not differ by more than 0.01 from that of the transparent amorphous polyamide. Also, a process for the manufacture of the composition, and the composition capable of being obtained by said process.

公开(公告)号：US10246587B2

公开(公告)日：2019-04-02

申请号：US15123420

申请日：2015-02-27

Applicant: ARKEMA FRANCE

Inventor： Maho Yasuda ,  Benjamin Saillard

IPC: C08L77/00 ,  C08L77/06 ,  C08K7/14 ,  C08G69/36 ,  C08G69/40 ,  C08L77/02

Abstract: The use of at least one semi-crystalline polyamide in a glass-charged amorphous polyamide resin for producing a composition which is more transparent than the resin. Polyamide-based transparent composition manufactured according to the use of the semi-crystalline polyamide, including: from 5.0 to 40.0% by weight of semicrystalline polyamide, from 20.0 to 80.0% by weight of at least one amorphous, transparent and at least partially cycloaliphatic polyamide, from 5.0 to 40.0%, preferably from 5.0 to 30.0%, by weight of glass filler, and optionally: from 0.0 to 5.0% by weight of PEBA, from 0.0 to 5.0% by weight of additives, with respect to the total weight of the composition.

公开(公告)号：US12060516B2

公开(公告)日：2024-08-13

申请号：US16088341

申请日：2017-04-07

Applicant: ARKEMA FRANCE

Inventor： Thierry Briffaud ,  Philippe Blondel ,  Patrick Dang ,  Francois Fernagut ,  Jean-Jacques Flat ,  Benjamin Saillard

IPC: C09K3/12 ,  C08G69/14 ,  C08G69/34 ,  C08G69/36 ,  C08L77/02 ,  C08L77/06

CPC classification number: C09K3/12 ,  C08G69/14 ,  C08G69/34 ,  C08G69/36 ,  C08L77/02 ,  C08L77/06 ,  C08G2190/00 ,  C08G2250/00 ,  C08L2203/18

Abstract: The invention relates to the use of a composition comprising at least one polyamide, of which at least one is a semicrystalline copolyamide comprising at least one minor motif resulting from the polycondensation of: at least one diamine with at least one polymerised fatty acid, in particular a fatty acid dimer; or at least one diamine dimer with at least one carboxylic acid; or at least one amino acid dimer; or mixtures of same, as a sealing coating in a pipe containing oil or gas, said pipe being used in the operation of offshore oil or gas deposits.

公开(公告)号：US20200377773A1

公开(公告)日：2020-12-03

申请号：US16088341

申请日：2017-04-07

Applicant: ARKEMA FRANCE

Inventor： Thierry Briffaud ,  Philippe Blondel ,  Patrick Dang ,  Francois Fernagut ,  Jean-Jacques Flat ,  Benjamin Saillard

IPC: C09K3/12 ,  C08L77/02 ,  C08L77/06 ,  C08G69/34 ,  C08G69/36 ,  C08G69/14

Abstract: The invention relates to the use of a composition comprising at least one polyamide, of which at least one is a semicrystalline copolyamide comprising at least one minor motif resulting from the polycondensation of: at least one diamine with at least one polymerised fatty acid, in particular a fatty acid dimer; or at least one diamine dimer with at least one carboxylic acid; or at least one amino acid dimer; or mixtures of same, as a sealing coating in a pipe containing oil or gas, said pipe being used in the operation of offshore oil or gas deposits.

公开(公告)号：US11377555B2

公开(公告)日：2022-07-05

申请号：US16651598

申请日：2018-09-26

Applicant: Arkema France

Inventor： Maho Yasuda ,  Benoît Brule ,  Benjamin Saillard ,  Marie Pommier De Santi

IPC: C08L77/06

Abstract: The present invention relates to transparent polyamide-based composition, comprising: from 5.0 to 40.0% by weight of semi-crystalline polyamide, from 20.0 to 80.0% by weight of at least one amorphous, transparent and at least partially cycloaliphatic polyamide, from 0.0 to 5.0% by weight of PEBA, from 0.0 to 5.0% by weight of additives, and from 5.0 to 50.0%, preferably from 10.0 to 40.0% by weight, preferably from 20.0 to 30.0% by weight by weight of glass filler, where the glass filler, expressed as % by weight with respect to the total weight of filler, less than 60 wt. % silica (SiO2) and more than 5 wt. % of boron oxide (B2O3). The invention also relates to the manufacture of said composition, its use for the manufacture of transparent articles, said transparent articles and their process of manufacture.

公开(公告)号：US20180327592A1

公开(公告)日：2018-11-15

申请号：US15776497

申请日：2016-11-14

Applicant: ARKEMA FRANCE

Inventor： Benoît Brule ,  Benjamin Saillard ,  Karine Loyen ,  Philippe Blondel

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

CPC classification number: C08L77/06 ,  C08G69/36 ,  C08K5/005 ,  C08K7/14 ,  C08L77/02 ,  C08L2205/025

Abstract: The application relates to a composition having improved dimensional stability and comprising an amorphous polyamide or a mixture of amorphous polyamides, and a semi-crystalline polyamide for which the average number of carbon atoms (C) relatively to the nitrogen atom (N) is greater than or equal to 8 or a mixture of semi-crystalline polyamides wherein the average number of carbon atoms (C) relatively to the nitrogen atom (N) of each of the semi-crystalline polyamides is greater than or equal to 8, to its preparation method and to its uses.