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公开(公告)号：US20200216627A1
公开(公告)日：2020-07-09
申请号：US16624441
申请日：2018-06-21
Applicant: ARKEMA FRANCE
Inventor： Gilles HOCHSTETTER , Mathieu CAPELOT , Thibaut SAVART , Arthur Pierre BABEAU , Denis HUZE , François TANGUY , Patrice GAILLARD
IPC: C08J5/24
Abstract: The present invention relates to an impregnated fibrous material comprising a fibrous material made of continuous fibers and at least one reactive thermoplastic prepolymer, and optionally a chain extender, characterized in that the at least one reactive thermoplastic prepolymer is partially polymerized, optionally with the chain extender, and has a number-average molecular weight (Mn) ranging from 500 to 10,000, preferably from 4,000 to 8000, the proportion of fibers in the impregnated fibrous material being 45 to 65% by volume, preferably 50 to 60% by volume, and in particular 54 to 60%.
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2.发明申请公开(公告)号：US20180346666A1
公开(公告)日：2018-12-06
申请号：US15778080
申请日：2016-12-09
Applicant: ARKEMA FRANCE
Inventor： Mathieu CAPELOT , Gilles HOCHSTETTER
Abstract: Provided is a process for producing a part made of a thermoplastic composite material by molding in a closed mold, where the material includes reinforcing fibers and a polyamide thermoplastic matrix impregnating the fibers. Also provided is a reactive prepolymer precursor composition for use in the process.
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公开(公告)号：US20230151153A1
公开(公告)日：2023-05-18
申请号：US18150336
申请日：2023-01-05
Applicant: Arkema France
Inventor： Thierry BRIFFAUD , Gilles HOCHSTETTER , Mathieu CAPELOT
CPC classification number: C08G69/265 , C08L77/12 , B29C70/06 , C08L77/06 , C08J5/04 , B29C45/0005 , C08J2377/12 , C08J2377/06 , B29K2077/00
Abstract: A composition including at least one polyamide polymer obtained from at least one reactive polyamide prepolymer including at least one chain extender (PA1-All1-PA1), the polyamide polymer being prepared at a temperature T1 no lower than the temperature melting temperature or glass transition temperature of the polymer and having a mean molecular weight Mn1. The composition has a melt viscosity which can be modulated according to the temperature to which the composition is exposed, wherein the temperature is between T2 and T3, T2 and T3 being higher than T1, and the melt viscosity η2 or η′3 observed at the temperature T2 or T3, respectively, being lower than the melt viscosity η2 or η3 of the polyamide polymer, which does not include a chain extender and has the same mean molecular weight Mn1(PA1) observed at the same temperature T2 or T3. The composition includes one or more polyamides.
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公开(公告)号：US20180370208A1
公开(公告)日：2018-12-27
申请号：US16062231
申请日：2016-12-15
Applicant: ARKEMA FRANCE
Inventor： Thierry BRIFFAUD , Mathieu CAPELOT , Nicolas DUFAURE
Abstract: A barrier structure for the storage and/or transport of fluids, including at least one barrier layer (1) including an MPMDT/XT copolyamide in which: MPMDT is a unit with an amide motif having a molar ratio of between 5 and 50%, particularly between 5 and 45%, preferably between 15 and 45%, more preferably between 20 and 45%, where MPMD is 2-methyl pentamethylene diamine (MPMD) and T is terephthalic acid, XT being a unit with a majority amide motif having a molar ratio of between 50 and 95%, particularly between 55 and 95%, preferably between 55 and 85%, more preferably between 55 and 80%, where X is a C9 to C18, preferably C9, C10, C11 and C12, linear aliphatic diamine, and where T is terephthalic acid, the copolyamide having a melting point of 250° C.
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公开(公告)号：US20180251601A1
公开(公告)日：2018-09-06
申请号：US15758923
申请日：2017-07-10
Applicant: ARKEMA FRANCE
Inventor： Mathieu CAPELOT , Gilles HOCHSTETTER
CPC classification number: C08G69/36 , B29C67/246 , B29K2077/00 , C08G69/265 , C08G69/28 , C08J5/24 , C08J2377/06 , C08K7/02 , C08L77/06
Abstract: The invention relates to a composition for thermoplastic composite material comprising: 30% to 60% by volume, preferentially 35% to 50% by volume, of a thermoplastic matrix comprising from 50% to 100% by weight of a semi-crystalline polyamide polymer and from 0% to 50% by weight of at least one additive and/or of at least one other polymer, 40% to 70% by volume, preferentially 50% to 65% by volume, of long reinforcing fibers (or of long fibrous reinforcement), said thermoplastic matrix impregnating said long reinforcing fibers (or said long fibrous reinforcement), said semi-crystalline polyamide polymer being: a) a reactive composition comprising or consisting of at least one reactive polyamide prepolymer which is a precursor of said semi-crystalline polyamide polymer, or, as an alternative to a), b) a nonreactive composition of at least one polyamide polymer, said composition being that of said thermoplastic matrix defined above, and said reactive polyamide prepolymer of the composition a) and said polyamide polymer of the composition b) comprising or consisting of at least one BACT/XT copolyamide.
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Patent Agency Ranking
公开(公告)号：US20220081520A1
公开(公告)日：2022-03-17
申请号：US17416098
申请日：2019-12-17
Applicant: Arkema France
Inventor： Gilles HOCHSTETTER , Lise DEVES , Mathieu CAPELOT , Thierry BRIFFAUD , Yves DEYRAIL
IPC: C08J5/04
Abstract: The present invention concerns an impregnated fibrous material comprising at least one continuous-fiber fibrous material in the form of a roving or a plurality of parallel rovings and at least one thermoplastic polymer matrix, characterized in that said at least one thermoplastic polymer is an amorphous or semi-crystalline polymer having a glass transition temperature such that Tg≥40° C., especially Tg≥100° C., in particular ≥120° C., the fiber content of said impregnated fibrous material being from 45 to 65% by volume, preferably from 50 to 60% by volume, especially from 54 to 60% by volume, the number-average molecular mass Mn of said thermoplastic polymer being from 11,000 to 25,000 g/mol, the melt viscosity of said thermoplastic polymer being from 80 to 1500 Pa·s, as measured by plane-plane rheology at 1 Hz and 2% deformation, at a temperature of Tg+220° C.
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公开(公告)号：US20190338074A1
公开(公告)日：2019-11-07
申请号：US16512438
申请日：2019-07-16
Applicant: Arkema France
Inventor： Mathieu CAPELOT , Gilles HOCHSTETTER
Abstract: The invention relates to a composition for thermoplastic composite material comprising: 30% to 60% by volume, preferentially 35% to 50% by volume, of a thermoplastic matrix comprising from 50% to 100% by weight of a semi-crystalline polyamide polymer and from 0% to 50% by weight of at least one additive and/or of at least one other polymer, 40% to 70% by volume, preferentially 50% to 65% by volume, of long reinforcing fibers (or of long fibrous reinforcement), said thermoplastic matrix impregnating said long reinforcing fibers (or said long fibrous reinforcement), said semi-crystalline polyamide polymer being a nonreactive composition of at least one polyamide polymer, said composition being that of said thermoplastic matrix defined above, and said reactive polyamide prepolymer of the composition a) and said polyamide polymer of the composition b) comprising or consisting of at least one BACT/XT copolyamide.
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公开(公告)号：US20190232628A1
公开(公告)日：2019-08-01
申请号：US16316361
申请日：2017-07-10
Applicant: Arkema France
Inventor： Mathieu CAPELOT , Nicolas DUFAURE , Thierrry BRIFFAUD
CPC classification number: B32B27/34 , B32B27/08 , B32B27/22 , B32B2250/24 , B32B2307/7265 , B32B2329/04 , B32B2377/00 , B32B2439/40 , B32B2597/00 , C08G69/265 , C08K3/042
Abstract: The invention relates to a structure comprising at least one layer (1) comprising a BACT/XT copolyamide in which: —BACT is a unit with an amide moiety having a molar ratio of between 20 and 70%, preferably between 25 and 60%, and more preferably between 35 and 55%, where BAC is chosen from 1,3-bis (aminomethyl) cyclohexyl (1,3 BAC), 1,4-bis (aminomethyl) cyclohexyl (1,4 BAC) and a mixture of same, and T is terephthalic acid, —XT is a unit with an amide moiety motif having a molar ratio of between 30 and 80%, preferably between 40 and 75%, and more preferably between 45 and 65%, where X is a C9 to C18, preferably C9, C10, C11 and C12, linear aliphatic diamine, and where T is terephthalic acid, preferably a C10, C11 and C12 terephthalic acid.
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公开(公告)号：US20180361723A1
公开(公告)日：2018-12-20
申请号：US16062185
申请日：2016-12-15
Applicant: ARKEMA FRANCE
Inventor： Thierry BRIFFAUD , Mathieu CAPELOT , Nicolas DUFAURE
Abstract: A barrier structure intended for the storage and/or transport of fluids including at least one barrier layer (1) including an MXDT/XT copolyamide in which: MXDT is an amide unit present in a molar ratio of between 5 and 45%, preferably between 15 and 45%, and more preferably between 20 and 45%, where MXD represents m-xylylenediamine (MXD) and T represents terephthalic acid, XT is a majority amide unit present in a molar ratio of between 55 and 95%, preferably between 55 and 85%, and more preferably between 55 and 80%, where X is a C9 to C18, preferably C9, C10, C11 and C12, linear aliphatic diamine, and where T is terephthalic acid, said copolyamide having a melting point: 250° C.
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公开(公告)号：US20180223057A1
公开(公告)日：2018-08-09
申请号：US15579968
申请日：2016-06-23
Applicant: ARKEMA FRANCE
Inventor： Mathieu CAPELOT , Gilles HOCHSTETTER
Abstract: Method for open-mold production of a semi-crystalline thermoplastic polyamide matrix fiber-reinforced composite. The matrix has Tg>80° C. and Tf between 280° C. and 200° C. The matrix is prepared in-situ by molten state bulk polycondensation of a reactive precursor composition including A: a first polyamide prepolymer A1 each carrying two identical functions and a second polyamide prepolymer A2 each carrying two identical functions different from and coreactive with those of A1. The reactive precursors may alternatively include B: a prepolymer carrying (on the same chain) two different functions coreactive with each other. The reactive precursors may alternatively include a precursor composition that is a mixture of (A+B). The method involves successive steps of i) preparing the reactive mixture, ii) continuously coating the fibers by deposition-impregnation with the reactive mixture, iii) in-situ bulk polycondensation in an open heated die, and iv) cooling the composite.
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