公开(公告)号：US12072062B2

公开(公告)日：2024-08-27

申请号：US17620363

申请日：2021-01-26

Applicant: Arkema France

Inventor： Nicolas Dufaure ,  Patrick Dang ,  Antoine Goupil

IPC: F17C1/16 ,  B32B27/08 ,  B32B27/12 ,  B32B27/22 ,  B32B27/34 ,  B32B27/38 ,  F17C1/02

CPC classification number: F17C1/16 ,  B32B27/08 ,  B32B27/12 ,  B32B27/22 ,  B32B27/34 ,  B32B27/38 ,  F17C1/02 ,  B32B2250/02 ,  B32B2250/03 ,  B32B2260/046 ,  B32B2262/101 ,  B32B2307/7242 ,  B32B2363/00 ,  B32B2377/00 ,  F17C2203/066 ,  F17C2221/012 ,  F17C2270/0178

Abstract: A multilayer structure for transporting, distributing and storing hydrogen including, from the inside to the outside, a sealing layer and at least one composite reinforcement layer, the sealing layer including from the inside to the outside: a layer of a composition including: a short-chain polyamide thermoplastic polymer, more than 15% and up to 50% by weight of impact modifier, or including: a semi-crystalline long-chain polyamide thermoplastic polymer, up to 50% by weight of impact modifier, up to 3% by weight of plasticizer; a hydrogen barrier layer; a layer of a composition including: a short-chain polyamide thermoplastic polymer, more than 15% and up to 50% by weight of impact modifier, or including: a semi-crystalline long-chain polyamide thermoplastic polymer, up to 50% by weight of impact modifier, up to 3% of weight of plasticizer, the innermost composite reinforcement layer being wound around the sealing layer.

公开(公告)号：US11377536B2

公开(公告)日：2022-07-05

申请号：US15522805

申请日：2015-11-05

Applicant: ARKEMA FRANCE

Inventor： Philippe Blondel ,  Fabrice Glasson ,  François Fernagut ,  Jean-Jacques Flat ,  Patrick Dang

IPC: C08K3/014 ,  C08L77/02 ,  C08K3/16 ,  C08K5/29 ,  F16L11/04 ,  C08K3/32 ,  B32B27/34 ,  B32B27/32 ,  B32B27/08 ,  B32B27/18 ,  C08L77/06 ,  B32B27/22 ,  F16L11/06 ,  C08L79/00 ,  C08K5/435 ,  F16L58/00 ,  B32B1/08

Abstract: The invention relates to the use of at least one catalyst, at least one copper heat stabiliser and at least one oligo- or poly-carbodiimide with a matrix including at least one polyamide, in order to form a composition that has a good melt viscosity and is stable during transformation, in particular during extrusion.

公开(公告)号：US12158239B2

公开(公告)日：2024-12-03

申请号：US17792540

申请日：2021-01-26

Applicant: ARKEMA FRANCE

Inventor： Nicolas Dufaure ,  Patrick Dang ,  Antoine Goupil

IPC: F17C1/06 ,  B32B27/08 ,  B32B27/12 ,  B32B27/22 ,  B32B27/34 ,  B32B5/02 ,  B32B5/26

Abstract: Multilayer structure for transporting hydrogen, including, from the inside, at least one sealing layer and at least one composite reinforcing layer, an innermost composite reinforcing layer being wound around an outermost adjacent sealing layer, the sealing layers of a composition predominantly of at least one semi-crystalline, long-chain polyamide thermoplastic polymer P1i (i=1 to n, n being the number of sealing layers), the Tf of which, as measured according to ISO 11357-3: 2013, is greater than 160° C., with the exception of one polyether block amide (PEBA), up to 50% by weight of impact modifier relative to the total weight of the composition and up to 1.5% by weight of plasticiser relative to the total weight of the composition, the composition being free of nucleating agent, and at least one of the composite reinforcing layers being of a fibrous material.

公开(公告)号：US20240239971A1

公开(公告)日：2024-07-18

申请号：US18558852

申请日：2022-04-29

Applicant: ARKEMA FRANCE

Inventor： Mathieu SABARD ,  Fabrice GLASSON ,  Clio COCQUET ,  Patrick Dang

IPC: C08J5/04 ,  B29B7/00 ,  B29B7/48 ,  B29K77/00 ,  B29K105/12 ,  B29K309/08 ,  B29K509/08

CPC classification number: C08J5/043 ,  B29B7/007 ,  B29B7/48 ,  B29K2077/00 ,  B29K2105/12 ,  B29K2309/08 ,  B29K2509/08 ,  C08J2377/04

Abstract: The present invention relates to a molding composition comprising, by weight:



a) 20% to 60% of at least one long-chain aliphatic polyamide having a number of carbon atoms per nitrogen atom of greater than or equal to 9,
said at least one polyamide having an inherent viscosity in solution of less than or equal to 1.3, as determined in accordance with the standard ISO 307:2007 at a temperature of 20° C.,
b) 40% to 75% of glass fibers, and
c) 0% to 5% by weight, by weight of at least one additive,
the sum of the proportions of each constituent of said composition being equal to 100%,
with the exclusion of an amorphous polyamide and a microcrystalline polyamide.

公开(公告)号：US11578163B2

公开(公告)日：2023-02-14

申请号：US16770651

申请日：2018-12-07

Applicant: Arkema France

Inventor： Patrick Dang ,  Quentin Pineau ,  Inci Turan-Altuntas

IPC: C08F293/00

Abstract: The invention relates to a block copolymer comprising at least one rigid polyamide block and at least one flexible block, characterized in that the flexible block has an NH2/OH ratio of concentrations of amine chain ends to alcohol chain ends which is within the range from 30 to 150, said concentrations being measured by 1H NMR (TFanh./CD2Cl23). The invention also relates to the use of a flexible block for manufacturing a copolymer containing polyamide blocks and flexible blocks that is both hydrolysis-resistant and CO2-permeable, with a permeability to CO2 of at least 10 000 cm3/m2/24 h/atm for a 25 μm film of said copolymer, characterized in that said flexible block has a ratio of amine chain ends to acid chain ends which is within the range from 30 to 150.

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.