Multilayer plastic pipe
    4.
    发明授权
    Multilayer plastic pipe 失效
    多层塑料管

    公开(公告)号:US5404915A

    公开(公告)日:1995-04-11

    申请号:US974287

    申请日:1992-11-10

    摘要: A multilayer plastic pipe having improved barrier action against diffusion of the substance being transported, particularly methanol-containing fuels, dimensional stability, resistance to mechanical stress, and particularly improved adhesion between layers is provided comprising:(A) an inner layer and an outer layer, each of which comprise a polyamide-based molding composition, wherein the inner layer and outer layer may be the same or different, and (B) at least one intermediate layer comprisinga) 95 to 60% by weight of a linear, crystalline polyester andb) 5 to 40% by weight of a polymer containing reactive groups other than epoxide groups,wherein the reactive groups are contained in a concentration of from 4 to 95 mmol/kg based on the total amount of component (B); and wherein the layers are intimately bonded to one another.

    摘要翻译: 提供了一种具有改善的阻挡作用的多层塑料管,其特征在于包括:(A)内层和外层,其中,所述多层塑料管具有改善的被阻挡物质的扩散作用,特别是含甲醇的燃料,尺寸稳定性,抗机械应力, ,其中每一种都包含基于聚酰胺的模塑组合物,其中内层和外层可以相同或不同,和(B)至少一个中间层,其包含a)95至60重量%的线性结晶聚酯 和b)5-40重量%的含有环氧基以外的反应性基团的聚合物,其中反应基的含量以组分(B)总量为4-95mmol / kg为基准; 并且其中所述层彼此紧密结合。

    Multilayer plastic pipe
    7.
    发明授权
    Multilayer plastic pipe 失效
    多层塑料管

    公开(公告)号:US5478620A

    公开(公告)日:1995-12-26

    申请号:US203481

    申请日:1994-02-28

    IPC分类号: F16L9/133 B29D23/00

    摘要: Multilayer plastic pipes comprising a polyamide-based inner and outer layer, wherein the inner and outer layer are connected force-lockingly by means of at least one intermediate layer made of a mixture of a linear crystalline polyester and a polyamide, have improved stability to chemical agents and improved mechanical properties.

    摘要翻译: 包括基于聚酰胺的内层和外层的多层塑料管,其中内层和外层通过由线性结晶聚酯和聚酰胺的混合物制成的至少一个中间层强制锁定而具有改善的化学稳定性 助剂和改进的机械性能。