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公开(公告)号：US20200172671A1
公开(公告)日：2020-06-04
申请号：US16783366
申请日：2020-02-06
申请人： Arkema France
发明人： Nicolas ALZONNE , Thierry BRIFFAUD
摘要： An industrial method for preparing a semi-aromatic copolyamide having a general formula A/10.T, wherein: A denotes a unit obtained by polycondensing a lactam or a C9-C12 amino acid; and 10.T denotes a unit obtained by polycondensing 1.10-decanediamine and terephtalic acid. The method includes a step for polycondensing the comonomers, the amino acid or the lactam, 1.10-decanediamine and terephtalic acid in the presence of at least one C1-C7 linear aliphatic acid. The level of foaming in a reactor is substantially reduced, during the polycondensation step, in relation to the level observed without C1-C7 linear aliphatic acid.
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公开(公告)号：US20240010793A1
公开(公告)日：2024-01-11
申请号：US18252011
申请日：2021-11-10
申请人： ARKEMA FRANCE
CPC分类号： C08G69/30 , C08G69/06 , B29B7/82 , B29B7/48 , B29K2077/00
摘要： The present invention relates to a method for continuously preparing a polyamide prepolymer, the viscosity in solution of which is comprised between 0.25 dL/g and 0.70 dL/g, as measured according to ISO 307:2007 in m-cresol at 20° C.,
the method being characterized in that it comprises a step of polycondensation on the basis of one or more polyamide precursor monomers, said polycondensation step being carried out in a extruder comprising at least two co-rotating conveying screws, the at least one monomer being previously added therein in solid or liquid form without being dissolved in a solvent or in water, and said polycondensation step being carried out without extracting the water formed during said polycondensation.-
3.发明申请公开(公告)号：US20170335107A1
公开(公告)日：2017-11-23
申请号：US15667211
申请日：2017-08-02
申请人： ARKEMA FRANCE
CPC分类号： C08L77/06 , B29C70/021 , C08G69/265 , C08J5/04 , C08J5/24 , C08J2377/06 , C08K7/04 , C08L2205/025
摘要： A composition for a thermoplastic composite material having a thermoplastic matrix made of a semi-crystalline polyamide having a specific composition that includes at least two amide units, A, 55-95 mol %, and B, 5-45 mol %. A corresponds to x.T, wherein x is a C9-C18 linear aliphatic diamine and B corresponds to x′.T, wherein x′ can be B1): a specific branched x-dependent aliphatic diamine, B2): MXD or B3): a linear x-dependent aliphatic diamine, said polyamide having a glass transition temperature Tg of at least 90° C. and a melting point no higher than 280° C. Also, a method for manufacturing the composite material, the semi-crystalline polyamide polymer, the use of the composition and of the polymer for parts made of composite material, as well as the material and the resulting composite part.
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公开(公告)号：US20170073470A1
公开(公告)日：2017-03-16
申请号：US15358946
申请日：2016-11-22
申请人： ARKEMA FRANCE
IPC分类号： C08G69/36 , C09D177/06 , C08G69/04
CPC分类号： C08G69/36 , C08G69/04 , C08G69/26 , C08G69/265 , C08G69/28 , C08K3/32 , C08L77/06 , C09D177/06 , Y10T428/139
摘要： The invention relates to a copolyamide comprising at least two units corresponding to the following general formula: A/10,T in which: A is chosen from a unit obtained from an amino acid, a unit obtained from a lactam and a unit corresponding to the formula (Ca diamine).(Cb (cyclo)aliphatic diacid), with a representing the number of carbon atoms of the diamine and b representing the number of carbon atoms of the diacid, a and b each being between 4 and 36; 10,T denotes a unit obtained from the polycondensation of 1,10-decanediamine and terephthalic acid, characterized in that it has a polydispersity index, denoted by Ip, of less than or equal to 3.5, measured by gel permeation chromatography. The invention also relates to the process for preparing said copolyamide, a composition comprising this polyamide and also the use of this polyamide and of such a composition.
摘要翻译： 本发明还涉及制备所述共聚酰胺的方法，包含该聚酰胺的组合物以及该聚酰胺和这种组合物的用途。
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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
申请人： Arkema France
CPC分类号： C08G69/265 , C08L77/12 , B29C70/06 , C08L77/06 , C08J5/04 , B29C45/0005 , C08J2377/12 , C08J2377/06 , B29K2077/00
摘要： 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
申请人： ARKEMA FRANCE
摘要： 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：US20170321009A1
公开(公告)日：2017-11-09
申请号：US15535269
申请日：2015-12-09
申请人： ARKEMA FRANCE
发明人： Nicolas ALZONNE , Thierry BRIFFAUD
摘要： An industrial method for preparing a semi-aromatic copolyamide having a general formula A/10.T, wherein: A denotes a unit obtained by polycondensing a lactam or a C9-C12 amino acid; and 10.T denotes a unit obtained by polycondensing 1.10-decanediamine and terephtalic acid. The method includes a step for polycondensing the comonomers, the amino acid or the lactam, 1.10-decanediamine and terephtalic acid in the presence of at least one C1-C7 linear aliphatic acid. The level of foaming in a reactor is substantially reduced, during the polycondensation step, in relation to the level observed without C1-C7 linear aliphatic acid.
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公开(公告)号：US20230407006A1
公开(公告)日：2023-12-21
申请号：US18251790
申请日：2021-11-10
申请人： ARKEMA FRANCE
CPC分类号： C08G69/10 , C08J3/212 , C08J2377/04
摘要： A method for continuously preparing a formulated polyamide prepolymer, of which the solution viscosity is from 0.25 dL/g to 0.70 dL/g, as measured according to ISO 307:2007 in m-cresol at 20° C., the method including a step of polycondensation on the basis of one or more polyamide precursor monomers, said polycondensation step being carried out in an extruder comprising at least two co-rotating conveying screws, the at least one monomer being previously fed therein in solid or liquid form without being dissolved in a solvent or in water, and said polycondensation step being carried out without extraction of the water formed during said polycondensation step and comprising the addition of at least one additive during said polycondensation step in the extruder.
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公开(公告)号：US20220081520A1
公开(公告)日：2022-03-17
申请号：US17416098
申请日：2019-12-17
申请人： Arkema France
IPC分类号： C08J5/04
摘要： 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：US20180361723A1
公开(公告)日：2018-12-20
申请号：US16062185
申请日：2016-12-15
申请人： ARKEMA FRANCE
摘要： 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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