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    • 23. 发明申请
    • ANTISTATIC FLEXIBLE HOSE
    • 防静电软管
    • WO1998025064A1
    • 1998-06-11
    • PCT/EP1997004949
    • 1997-09-10
    • FITT S.P.A.MEZZALIRA, Rinaldo
    • FITT S.P.A.
    • F16L11/08
    • F16L11/1185A47L9/24F16L11/081F16L11/127
    • An antistatic flexible hose includes: a base layer (2) of relatively elastic plastic material, in which a first helical wire-like reinforcement part (5) with a preset pitch, made of rigid plastic, is embedded; antistatic devices constituted by a helical wire-like part (6) made of an electrically semiconducting plastic compound which is co-extruded together with the base layer (2) and is embedded therein. The semiconducting wire-like part (6) has the same pitch as the wire-like reinforcement part (5) and can be arranged outward or inward in a position which is adjacent and offset with respect to the reinforcement part (5) toward the inner surface (4) or outer surface (3) of the base layer (2), so as to be tangent to them or at least partially radially protrude inward or outward. The semiconducting body is constituted by a plastic matrix, made for example of ethylene and vinyl acetate copolymers, in which a solid material with a relatively low electrical resistivity, for example a carbon black-based powder, is dispersed.
    • 一种抗静电柔性软管包括:相对弹性塑料材料的基层(2),其中镶嵌有由刚性塑料制成的具有预设节距的第一螺旋形线状加强件(5); 抗静电装置由与半导体塑料化合物制成的螺旋状线状部分(6)构成,其与基底层(2)共同挤出并嵌入其中。 半导体线状部分(6)具有与线状加强部分(5)相同的间距,并且可以相对于加强部分(5)相邻并偏移到内部的位置向外或向内布置 表面(4)或外表面(3),以便与其相切或至少部分地向内或向外径向突出。 半导电体由塑料基体构成,其由例如乙烯和乙酸乙烯酯共聚物制成,其中分散具有较低电阻率的固体材料,例如炭黑基粉末。
    • 25. 发明申请
    • CORRUGATED MULTILAYER TUBING HAVING AT LEAST ONE FLUOROPLASTIC LAYER
    • 具有至少一个荧光层的多层多层管
    • WO1994009303A1
    • 1994-04-28
    • PCT/US1993009849
    • 1993-10-14
    • ITT INDUSTRIES, INC.
    • ITT INDUSTRIES, INC.NOONE, David, L.MITCHELL, Frank, L.
    • F16L11/11
    • B32B1/08B32B27/08B32B27/30B32B27/32B32B27/34F16L9/121F16L9/123F16L11/04F16L11/11F16L11/1185F16L11/12F16L2011/047
    • A multilayer tube suitable for use on motor vehicles composed of a cylindrical wall having an outer surface, and an inner surface essentially parallel to the outer surface. The cylindrical wall has a first region having an essentially uniform cross-sectional diameter and a second region which has a cross-sectional diameter differing from the essentially uniform cross-sectional diameter of the first region. The second region has at least one convolution contiguously adjacent to the cylindrical wall of the first region. The cylindrical wall is made up of a thick flexible outer layer having an inner and an outer face, composed of an extrudable melt processible thermoplastic; a thin intermediate bonding layer bonded to the inner face of the thick outer layer, composed of an extrudable melt processible thermoplastic capable of sufficiently permanent laminar adhesion to the outer layer; and an inner hydrocarbon barrier layer bonded to the intermediate bonding layer, composed of an extrudable melt processible thermoplastic which contains a fluoroplastic such as polyvinylidine fluoride, polyvinylfluoride, polychlorotrifluoroethylene, ethylene tetrafluoroethylene copolymers, and mixtures thereof.
    • 适用于由具有外表面的圆柱形壁和基本上平行于外表面的内表面组成的机动车辆上的多层管。 圆柱形壁具有基本上均匀的横截面直径的第一区域和具有与第一区域的基本上均匀的横截面直径不同的横截面直径的第二区域。 第二区域具有邻近第一区域的圆柱形壁的至少一个卷积。 圆柱形壁由具有内表面和外表面的厚的柔性外层构成,由可挤出的可熔融加工的热塑性塑料构成; 结合到厚外层的内表面的薄的中间粘合层,由能够对外层充分永久的层状粘合的可挤出的可熔融加工的热塑性塑料构成; 以及粘合到中间粘合层的内部烃阻挡层,由包含氟塑料的可挤出的可熔融加工的热塑性塑料组成,所述氟塑料包括聚偏氟乙烯,聚氟乙烯,聚氯三氟乙烯,乙烯四氟乙烯共聚物及其混合物。