PROCESS FOR LINING METAL PIPELINES
    1.
    发明申请
    PROCESS FOR LINING METAL PIPELINES 有权
    内衬金属管道的工艺

    公开(公告)号:US20140083550A1

    公开(公告)日:2014-03-27

    申请号:US14122652

    申请日:2012-05-25

    IPC分类号: F16L9/19 B29C63/18

    摘要: The present invention pertains to a process for lining a metal pipeline, said process comprising the following steps: (i) processing a thermoplastic fluoropolymer composition to yield a pipe liner having an outer diameter greater than the inner diameter of said metal pipeline, said thermoplastic fluoropolymer composition comprising: (A) from 10% to 60% by weight, on the total weight of polymer (A) and polymer (B) of at least one vinylidene fluoride (VDF) homopolymer [polymer (A)], (B) from 40% to 90% by weight, based on the total weight of polymer (A) and polymer (B) of at least one VDF copolymer comprising from 2% to 15% by moles of recurring units derived from at least one other fluorinated comonomer (F) [polymer (B)], and (ii) deforming said pipe liner, (iii) introducing the deformed pipe liner in said metal pipeline; and (iv) expanding the deformed pipe liner to fit with the inner diameter of said metal pipeline. The present invention also relates to a pipeline system.

    摘要翻译: 本发明涉及一种用于衬里金属管道的方法,所述方法包括以下步骤:(i)加工热塑性氟聚合物组合物以产生外径大于所述金属管道内径的管衬,所述热塑性含氟聚合物 组合物,其包含:(A)10重量%至60重量%,至少一种偏二氟乙烯(VDF)均聚物[聚合物(A)]的聚合物(A)和聚合物(B))的总重量,(B) 40重量%至90重量%,基于聚合物(A)和聚合物(B)的至少一种VDF共聚物的总重量,其包含2至15摩尔%的来自至少一种其它氟化共聚单体的重复单元( F)[聚合物(B)],和(ii)使管衬变形,(iii)将变形管衬导入所述金属管道中; 和(iv)使变形的管衬套膨胀以适应所述金属管道的内径。 本发明还涉及一种管道系统。

    Process for lining metal pipelines
    2.
    发明授权
    Process for lining metal pipelines 有权
    衬里金属管道工艺

    公开(公告)号:US09371943B2

    公开(公告)日:2016-06-21

    申请号:US14122652

    申请日:2012-05-25

    摘要: A process for lining a metal pipeline, which process generally utilizes thermoplastic fluoropolymer pipe liner Also, a pipeline system that includes at least two coaxial pipes, an outer metal pipe and inner thermoplastic fluoropolymer pipe. The thermoplastic fluoropolymer pipe/pipe liner is made from a composition that generally includes from 10% to 60% by weight of at least one vinylidene fluoride (VDF) homopolymer, from 40% to 90% by weight of at least one VDF copolymer comprising from 2% to 15% by moles of recurring units derived from at least one other fluorinated comonomer (F), and optionally at least one plasticizer.

    摘要翻译: 一种用于衬里金属管道的方法,该方法通常利用热塑性氟聚合物管衬套。另外,管道系统包括至少两个同轴管,外金属管和内部热塑性氟聚合物管。 热塑性氟聚合物管/管衬套由通常包含10%至60%重量的至少一种偏二氟乙烯(VDF)均聚物,40重量%至90重量%的至少一种VDF共聚物的组合物制成,所述VDF共聚物包含 来自至少一种其它氟化共聚单体(F)的2%至15%摩尔的重复单元,以及任选的至少一种增塑剂。