Polyamide- and EVOH-based multilayer tube for fluid transfer
    1.
    发明申请
    Polyamide- and EVOH-based multilayer tube for fluid transfer 审中-公开
    用于流体转移的聚酰胺和EVOH基多层管

    公开(公告)号:US20050037170A1

    公开(公告)日:2005-02-17

    申请号:US10950639

    申请日:2004-09-28

    摘要: The present invention relates to a multilayer tube comprising, in its radial direction from the outside inwards: an outer layer formed from a polyamide, a layer formed from a copolyamide, a layer formed from an EVOH, a layer formed from a copolyamide, an inner layer formed from a polyamide, the layers being successive and adhering to one another in their respective contact region. Advantageously, the inner layer is formed by a compound based on a polyamide and electrically conducting carbon black, producing a surface resistivity of less than 106 Ω/?. The outside diameter of these tubes may range from 6 to 110 mm and the wall thickness may be from 0.5 to 5 mm. Advantageously, the petrol tube according to the invention has an outside diameter ranging from 6 to 12 mm and a total wall thickness of 0.36 mm to 1.95 mm, namely: a thickness of 50 to 700 μm for the polyamide outer layer, a thickness of 10 to 150 μm for the copolyamide layers, a thickness of 10 to 200 μm for the EVOH layer, a thickness of 100 to 500 μm for the polyamide inner layer possibly filled with electrically conducting carbon black. The tube of the present invention has a very low permeability to petrol, particularly to hydrocarbons and their additives, and in particular to alcohols, such as methanol and ethanol, or to ethers, such as MTBE or ETBE. These tubes also have good resistance to engine lubrication oils and fuels.

    摘要翻译: 本发明涉及一种多层管,其从其向外的径向包括:由聚酰胺形成的外层,由共聚酰胺形成的层,由EVOH形成的层,由共聚酰胺形成的层,内部 层由聚酰胺形成,这些层在它们各自的接触区域中是连续的并彼此附着的。 有利地,内层由基于聚酰胺和导电炭黑的化合物形成,产生小于10 -6Ω/□的表面电阻率。 这些管的外径可以为6〜110mm,壁厚为0.5〜5mm。 有利地,根据本发明的汽油管具有6-12mm的外径和0.36mm至1.95mm的总壁厚,即聚酰胺外层的厚度为50至700μm,厚度为10 对于共聚酰胺层为150μm,EVOH层的厚度为10-200μm,聚酰胺内层的厚度为100-500μm,可能填充有导电炭黑。 本发明的管具有非常低的汽油渗透性,特别是对烃及其添加剂,特别是醇,如甲醇和乙醇,或醚,如MTBE或ETBE。 这些管也具有良好的耐发动机润滑油和燃料的能力。

    MULTILAYER TUBE BASED ON A POLYAMIDE AND A FLUOROPOLYMER FOR TRANSFERRING FLUIDS
    3.
    发明申请
    MULTILAYER TUBE BASED ON A POLYAMIDE AND A FLUOROPOLYMER FOR TRANSFERRING FLUIDS 审中-公开
    基于聚酰胺的多层管和用于转移流体的氟聚合物

    公开(公告)号:US20090188578A1

    公开(公告)日:2009-07-30

    申请号:US11577559

    申请日:2005-10-18

    IPC分类号: F16L11/04 F16L11/20

    摘要: The present invention relates to a multilayer tube comprising, in its radial direction from the outside inwards: a polyamide outer layer (1); an inner layer (2) of a composition comprising, the total being 100%, 5 to 30% by weight of a blend (A) comprising: a polyethylene carrying epoxy functional groups, an impact modifier chosen from elastomers and very low-density polyethylenes, the said impact modifier being completely or partly functionalized; 95 to 70% by weight of a blend (B) comprising: a fluoropolymer (B1), a functionalized fluoropolymer (B2), the proportion of (B2) being between 1 and 80% by weight of (A)+(B), the layers being successive and adhering to one another in their respective contact region. The inner layer is the layer in contact with the fluid being transported. The layer (2) may be conductive. It is also possible to place a polyamide layer (3) beside the layer (2), which layer becomes the inner layer. The tube of the present invention has a very low permeability to petrol, particularly to hydrocarbons and to their additives, in particular alcohols such as methanol and ethanol, or even ethers such as MTBE or ITBE. These tubes also exhibit good resistance to fuels and to lubricating oils for engines. This tube exhibits very good mechanical properties at low temperature and at high temperature. The invention also relates to the use of these tubes for transporting petrol.

    摘要翻译: 本发明涉及一种多层管,其从径向向外包括:聚酰胺外层(1); 组合物的内层(2),其包含总共为100%,5至30重量%的共混物(A),其包含:携带环氧官能团的聚乙烯,选自弹性体和非常低密度聚乙烯的抗冲改性剂 所述抗冲改性剂完全或部分官能化; 95重量%至70重量%的共混物(B),其包含:含氟聚合物(B1),官能化含氟聚合物(B2),(B2)的比例为(A)+(B)的1-80重量% 这些层是连续的并且在各自的接触区域中彼此附着。 内层是与被输送流体接触的层。 层(2)可以是导电的。 也可以在层(2)旁边放置聚酰胺层(3),该层成为内层。 本发明的管具有非常低的汽油渗透性,特别是烃和它们的添加剂,特别是醇如甲醇和乙醇,甚至醚如MTBE或ITBE。 这些管也表现出良好的燃料抵抗性和发动机润滑油。 该管在低温和高温下表现出非常好的机械性能。 本发明还涉及这些管用于运输汽油的用途。

    Structure comprising at least one polyethylene layer and at least one layer of barrier polymer
    4.
    发明申请
    Structure comprising at least one polyethylene layer and at least one layer of barrier polymer 审中-公开
    包含至少一个聚乙烯层和至少一层阻隔聚合物的结构

    公开(公告)号:US20060057391A1

    公开(公告)日:2006-03-16

    申请号:US11226137

    申请日:2005-09-14

    IPC分类号: B32B27/08 B32B27/32

    摘要: The present invention relates to a structure successively comprising: a layer of barrier polymer, a tie layer comprising, the total being 100%: 1 to 80% of at least one polyethylene carrying epoxy functional groups, 99 to 20% of at least one viscous polymer compatible with the polyethylene carrying epoxy functional groups, a polyethylene layer, and optionally another tie layer and a layer of barrier polymer, the layers adhering in their respective contact zones. This structure is of use in preparing devices for the storage or transfer of fluids, in particular in motor vehicles. The invention also relates to these devices. These devices can be pipes, tanks, bottles or containers in which the layer of barrier polymer is in contact with the stored or transported fluid. These structures can comprise other layers composed of other materials.

    摘要翻译: 本发明涉及一种结构,其连续包括:一层阻隔聚合物,一个粘结层,其包含总共为100%:1-80%的至少一种携带环氧官能团的聚乙烯,99%至20%的至少一种粘性 与携带环氧官能团的聚乙烯相容的聚合物,聚乙烯层以及任选的另一粘结层和阻挡聚合物层,这些层粘附在它们各自的接触区中。 这种结构在制备用于储存或转移流体,特别是机动车辆的装置中是有用的。 本发明还涉及这些装置。 这些装置可以是其中阻挡聚合物层与储存或输送的流体接触的管道,罐,瓶或容器。 这些结构可以包括由其它材料组成的其它层。

    POLYAMIDE-BASED ANTISTATIC MULTILAYER TUBE FOR TRANSFERRING FLUIDS
    7.
    发明申请
    POLYAMIDE-BASED ANTISTATIC MULTILAYER TUBE FOR TRANSFERRING FLUIDS 审中-公开
    用于转移流体的基于聚酰胺的抗静电多层管

    公开(公告)号:US20090314375A1

    公开(公告)日:2009-12-24

    申请号:US12090756

    申请日:2006-10-17

    IPC分类号: F16L11/127

    摘要: The present invention relates to a multilayer tube comprising, in succession in its radial direction from the outside inwards: a nylon-11 or nylon-12 polyamide outer layer (1); a tie layer (2); an optional EVOH layer (3); an optional layer (4) made of PA-6 or a PA-6/polyolefin blend having a PA-6 matrix and polyolefin dispersed phase; an inner layer (5) based on PA-6 in contact with the transported fluid, comprising by weight, the total being 100%: 40 to 65% (advantageously 45 to 60%) of PA-6, 1 to 20% (advantageously 5 to 15%) of HDPE, 10 to 30% (advantageously 15 to 25%) of at least one polymer P1 chosen from impact modifiers and polyethylenes, either or both of the HDPE and the P1 being completely or partly functionalized and 5 to 30% (advantageously 15 to 30% and preferably 17 to 24%) of an electrically conductive material. The tube of the present invention has a very low permeability to petrol, particularly to hydrocarbons and to their additives, in particular alcohols such as methanol and ethanol or else ethers such as MTBE or ETBE. These tubes also have a very good resistance to fuels and lubricating oils for engines.This tube has very good mechanical properties at low temperature or at high temperature. The invention also relates to the use of these tubes for transporting petrol.

    摘要翻译: 本发明涉及一种多层管,其从外向内径向连续地包括:尼龙11或尼龙-12聚酰胺外层(1); 连结层(2); 可选的EVOH层(3); 由PA-6制成的任选的层(4)或具有PA-6基体和聚烯烃分散相的PA-6 /聚烯烃共混物; 基于与所输送的流体接触的PA-6的内层(5),其包含重量百分比为100%:PA-6的40至65%(有利地为45至60%),1至20% 5至15%)的HDPE,10至30%(有利地为15至25%)的选自抗冲改性剂和聚乙烯的至少一种聚合物P1,HDPE和P1中的任一种或两者完全或部分官能化,并且5至30 %(有利地为15〜30%,优选为17〜24%)的导电性材料。 本发明的管具有非常低的汽油渗透性,特别是对烃及其添加剂,特别是醇如甲醇和乙醇,或醚如MTBE或ETBE的渗透性极低。 这些管也对发动机的燃料和润滑油具有非常好的抵抗力。 该管在低温或高温下具有非常好的机械性能。 本发明还涉及这些管用于运输汽油的用途。

    POLYAMIDE-BASED MULTILAYER TUBE FOR TRANSFERRING FLUIDS
    8.
    发明申请
    POLYAMIDE-BASED MULTILAYER TUBE FOR TRANSFERRING FLUIDS 审中-公开
    用于转移流体的基于聚酰胺的多层管

    公开(公告)号:US20090297750A1

    公开(公告)日:2009-12-03

    申请号:US11721713

    申请日:2005-12-19

    IPC分类号: B32B25/08 B32B1/08 B32B27/08

    摘要: The present invention relates to a multilayer tube comprising, in its radial direction from the outside inwards: an outer layer (1) made of a polyamide, a tie layer (2) comprising, by weight: 1 to 50% of an impact modifier chosen from elastomers and very low density polyethylene, the said impact modifier being completely or partly functionalized, per 99 to 50% of at least one copolyamide 6/12 respectively, an optional EVOH layer (3), optionally a tie layer, an inner layer (4) made of PA 12, PA 6 or a PA 6-polyolefin compound with a PA 6 matrix and a dispersed polyolefin phase, the layers being successive and adhering to one another in their respective contact zones. The inner layer is the layer in contact with the fluid being transferred. According to one embodiment of the invention, the inner layer (4) contains an electrically conducting material, producing a surface resistivity of less than 106Ω. According to another embodiment of the invention, the inner layer (4) contains essentially no electrically conducting material and the tube includes a layer (4a) that adheres to the layer (4), this layer is made of polyamide and contains an electrically conducting material producing a surface resistivity of less than 106Ω This layer (4a) becomes the inner layer. These tubes may have an outside diameter of 6 to 110 mm and a thickness of around 0.5 to 5 mm.

    摘要翻译: 本发明涉及一种多层管,其从其向外的径向包括:由聚酰胺制成的外层(1),连接层(2),其包含按重量计1%至50%的抗冲改性剂 来自弹性体和非常低密度的聚乙烯,所述抗冲改性剂分别完全或部分官能化,每99至50%的至少一种共聚酰胺6/12,任选的EVOH层(3),任选地连接层,内层( 4)由PA 12,PA 6或具有PA 6基体和分散的聚烯烃相的PA6-聚烯烃化合物制成,这些层在它们各自的接触区域中相继并且彼此附着。 内层是与被转移的流体接触的层。 根据本发明的一个实施例,内层(4)包含导电材料,产生小于106Om的表面电阻率。 根据本发明的另一个实施例,内层(4)基本上不包含导电材料,并且管包括粘附到层(4)的层(4a),该层由聚酰胺制成并且包含导电材料 产生小于106Om的表面电阻率该层(4a)成为内层。 这些管可以具有6至110mm的外径和约0.5至5mm的厚度。

    Multilayer structure having a layer based on polyamide and on HDPE
    9.
    发明申请
    Multilayer structure having a layer based on polyamide and on HDPE 审中-公开
    具有基于聚酰胺和HDPE层的多层结构

    公开(公告)号:US20060008604A1

    公开(公告)日:2006-01-12

    申请号:US11154422

    申请日:2005-06-16

    IPC分类号: B65D1/00

    摘要: The present invention relates to a structure successively comprising: a first layer of high density polyethylene (HDPE), a tie layer, a second layer of EVOH or of a blend based on EVOH, optionally a tie layer, a third layer of a blend comprising, by weight, the total being 100%: 50 to 90% of polyamide (A) having a conversion temperature of at most 230° C., 1 to 30% of high density polyethylene (HDPE), 5 to 30% of an impact modifier chosen from elastomers and very low density polyethylenes, at least one of the HDPE and of the impact modifier being functionalized, in all or part, the layers being coextrudable. The present invention also relates to devices for the transfer or storage of fluids and more particularly to pipes, tanks, conduits, bottles and containers composed of the above structure in which the layer of the blend of polyamide (A) and of HDPE is in direct contact with the fluid present or transported

    摘要翻译: 本发明涉及一种结构,其连续包括:第一层高密度聚乙烯(HDPE),粘结层,第二层EVOH或基于EVOH的共混物,任选的粘结层,第三层共混物,包括 ,总重量为100%:转化温度为230℃以下的聚酰胺(A)为50〜90%,高密度聚乙烯(HDPE)为1〜30%,冲击强度为5〜30% 选自弹性体和非常低密度聚乙烯的改性剂,HDPE和抗冲改性剂中的至少一种在全部或部分中被共同挤出。 本发明还涉及用于转移或储存流体的装置,更具体地涉及由上述结构组成的管,罐,导管,瓶和容器,其中聚酰胺(A)和HDPE的共混物层直接 与存在或运输的液体接触