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1.发明申请公开(公告)号：US20220204721A1
公开(公告)日：2022-06-30
申请号：US17692526
申请日：2022-03-11
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
Abstract: 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.
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公开(公告)号：US20230045067A1
公开(公告)日：2023-02-09
申请号：US17758738
申请日：2021-01-26
Applicant: ARKEMA FRANCE
Inventor： Nicolas DUFAURE , Patrick DANG , Antoine GOUPIL
Abstract: A multilayer structure for storing hydrogen, including, from the inside, at least one sealing layer and at least one composite reinforcement layer, an innermost composite reinforcement layer being welded to an outermost adjacent sealing layer, the sealing layers being a composition predominantly of: at least one semi-crystalline polyamide thermoplastic polymer P1i, i=1 to n, n being the number of sealing layers, excluding an amide polyether block (PEBA), up to 50% by weight of impact modifier relative to the total weight of the composition, up to 1.5% by weight of plasticizer relative to the total weight of the composition, and at least one of the composite reinforcement layers of a fibrous material in the form of continuous fibers, which is impregnated with a composition predominantly of at least one semi-crystalline polyamide polymer P2j, j=1 to m, m being the number of reinforcement layers.
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公开(公告)号：US20220397237A1
公开(公告)日：2022-12-15
申请号：US17776380
申请日：2020-11-12
Applicant: ARKEMA FRANCE
Inventor： Nicolas DUFAURE , Antoine GOUPIL , Olivier MERLE , Patrick DANG
IPC: F17C1/00
Abstract: Method for preparing a hydrogen tank including at least one sealing layer of a composition including at least one polyamide P1, and at least one base in order to provide the tank with at least one opening, wherein the method includes: providing of at least one base, the at least one base being covered by at least one layer of a composition including at least one adhesion primer; preparing the at least one sealing layer; fastening the at least one base to the at least one sealing layer.
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公开(公告)号：US20230075842A1
公开(公告)日：2023-03-09
申请号：US17792540
申请日：2021-01-26
Applicant: ARKEMA FRANCE
Inventor： Nicolas DUFAURE , Patrick DANG , Antoine GOUPIL
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.
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公开(公告)号：US20230415446A1
公开(公告)日：2023-12-28
申请号：US18253995
申请日：2021-11-22
Applicant: ARKEMA FRANCE
Inventor： Gilles HOCHSTETTER , Thibaut SAVART , Patrick DANG , Richard AUDRY
CPC classification number: B32B1/08 , B32B5/26 , B32B37/04 , B32B2260/023 , B32B2260/046 , B32B2307/302 , B32B2597/00
Abstract: A multilayer structure which is chosen from among a tank, a pipe or a tube and intended for transporting, distributing or storing liquid hydrogen, the structure including a sealing layer in contact with the liquid hydrogen, the sealing layer including a composition which includes a polymer P1 which is polychlorotrifluoroethylene and at least one second layer located above the sealing layer, the second layer being a composite reinforcing layer of a fibrous material in the form of continuous fibers impregnated with a composition mainly including at least one thermoplastic or thermosetting polymer P2.
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Patent Agency Ranking
公开(公告)号：US20230272163A1
公开(公告)日：2023-08-31
申请号：US18006979
申请日：2021-07-27
Applicant: ARKEMA FRANCE
Inventor： Stefania CASSIANO GASPAR , Thierry BRIFFAUD , Jean-Jacques FLAT , Patrick DANG
IPC: C08G69/26
CPC classification number: C08G69/26
Abstract: A linear aliphatic polyamide obtained by polycondensation of at least one linear aliphatic unit chosen from a C6 to C12 alpha, omega-aminocarboxylic acid, a C6 to C12 lactam and a (Ca-diamine).(Cb-diacid) unit, with a representing the number of carbon atoms of the diamine and b representing the number of carbon of the diacid, a and b being between 4 and 18, the polyamide having a difference, expressed as an absolute value, between its total acidity and its total basicity of between 35 and 180, and a total basicity or a total acidity strictly less than 35 μeq/g. Also, a method for its preparation and to its uses in the textile field.
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公开(公告)号：US20220258446A1
公开(公告)日：2022-08-18
申请号：US17628973
申请日：2020-07-28
Applicant: Arkema France
Inventor： Gilles HOCHSTETTER , Patrick DANG , Thibaut SAVART
IPC: B32B1/08 , F17C1/16 , B32B1/02 , B32B27/12 , B32B5/02 , B32B27/20 , B32B27/34 , B32B15/02 , B32B15/088 , C08L77/06
Abstract: A multilayer structure selected from a reservoir, a pipe or a tube, for transporting, distributing or storing hydrogen, including, from the inside to the outside, at least one sealing layer and at least one composite reinforcing layer, the innermost composite reinforcing layer being welded to the outermost adjacent sealing layer, the sealing layers including at least one semi-crystalline thermoplastic polymer, the Tm of which is less than 280° C., wherein the at least one thermoplastic polymer of each sealing layer may be the same or different, and at least one of the composite reinforcing layers being of a fibrous material in the form of continuous fibers impregnated with a composition of at least one thermoplastic polymer P2j, the thermoplastic polymer P2j having a Tg greater than the maximum temperature of use of said structure (Tu), with Tg≥Tu+20° C., Tu being greater than 50° C.
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公开(公告)号：US20230356514A1
公开(公告)日：2023-11-09
申请号：US18246743
申请日：2021-09-28
Applicant: ARKEMA FRANCE
Inventor： Jean-Jacques FLAT , Patrick DANG
CPC classification number: B32B27/08 , B32B27/12 , B32B27/36 , B32B27/38 , B32B37/153 , C08L77/00 , B32B2262/101 , B32B2305/10 , B32B2307/306 , B32B2457/10 , B32B2605/00 , C08L2205/03
Abstract: Multi-layer structure intended for storing hydrogen, including, from the inside out, a sealing layer and a composite reinforcing layer, the innermost composite reinforcing layer being wound around the outermost adjacent sealing layer, at least the innermost sealing layer being made of a composition including: a. 20.5 to 99.845% by weight of a polyamide; b. 0.005 to 0.5% by weight of a catalyst; c. 0.05 to 1% by weight of a heat stabilizer; d. 0.1 to 3% by weight of a oligo- or poly-carbodiimide; e. 0 to 1.5% by weight of a plasticiser; f. 0 to less than 15% by weight of a polyolefin; g. 0 to 30% of an additive, and at least one of the composite reinforcing layers of a fibrous material in the form of continuous fibres impregnated with a composition including at least one polymer P2j, j=1 to m, m being the number of reinforcing layers.
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公开(公告)号：US20220364678A1
公开(公告)日：2022-11-17
申请号：US17620363
申请日：2021-01-26
Applicant: Arkema France
Inventor： Nicolas DUFAURE , Patrick DANG , Antoine GOUPIL
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.
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公开(公告)号：US20200299447A1
公开(公告)日：2020-09-24
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.
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