Metal tubing coated with multiple layers of polymeric materials
    11.
    发明授权
    Metal tubing coated with multiple layers of polymeric materials 失效
    涂有多层聚合材料的金属管

    公开(公告)号:US5972450A

    公开(公告)日:1999-10-26

    申请号:US806232

    申请日:1997-02-24

    摘要: A coated metal tubing arrangement comprises a metal tube. An inner layer of a first polymeric material is bonded to the tube to provide corrosion protection. The first polymeric material has a high crystallinity, a dampening factor of less than 0.05, and a flexural modulus of at least 100 MPa. An outer layer of a second polymeric material is extruded around the inner layer to absorb impact energies and to eliminate mechanical vibrations and acoustic noises. The second polymeric material has a dampening factor of at least 0.05 and a flexural modulus of less than 50 MPa. The second polymeric material is a multi-phase polymer having at least one polymer component with a glass-transition temperature below room temperature.

    摘要翻译: 涂覆的金属管装置包括金属管。 第一聚合物材料的内层与管接合以提供腐蚀保护。 第一聚合物材料具有高结晶度,小于0.05的阻尼系数和至少100MPa的弯曲模量。 第二聚合材料的外层围绕内层挤出以吸收冲击能并消除机械振动和声音噪声。 第二聚合物材料具有至少0.05的阻尼系数和小于50MPa的挠曲模量。 第二聚合物材料是具有玻璃化转变温度低于室温的至少一种聚合物组分的多相聚合物。

    Multi-layer tubing assembly for fluid and vapor handling systems
    12.
    发明授权
    Multi-layer tubing assembly for fluid and vapor handling systems 失效
    用于流体和蒸汽处理系统的多层管道组件

    公开(公告)号:US5934336A

    公开(公告)日:1999-08-10

    申请号:US593068

    申请日:1996-01-29

    申请人: Henry S. Hsich

    发明人: Henry S. Hsich

    摘要: A multi-layer tubing assembly for use in fuel-line applications. An extruded innermost semi-conductive layer of ethylene tetrafluoroethylene has a surface resistivity in the range of 10.sup.1 to 10.sup.6 ohm/sq. An inner permeation-resistant layer of soft ethylene tetrafluoroethylene is coextruded around the innermost layer at temperatures below 600 degrees Fahrenheit. An adhesive layer of polymer blend coextruded around the inner layer has a multi-phase morphology wherein one phase is miscible with ethylene tetrafluoroethylene and another phase is miscible with polyamide. An outer layer of nylon 12 is coextruded around the adhesive layer.

    摘要翻译: 用于燃油管路应用的多层管道组件。 挤出的最内层的乙烯四氟乙烯半导体层的表面电阻率为101至106欧姆/平方厘米。 软质乙烯四氟乙烯的内部耐渗透层在温度低于华氏600度的温度下在最内层周围共挤出。 共聚在内层周围共挤出的聚合物共混物的粘合剂层具有多相形态,其中一相可与乙烯四氟乙烯混溶,另一相可与聚酰胺混溶。 尼龙12的外层在粘合剂层周围共挤出。