公开(公告)号：US20140311614A1

公开(公告)日：2014-10-23

申请号：US14193663

申请日：2014-02-28

Applicant: SHAWCOR LTD.

Inventor： Stephen J. Edmondson ,  Dennis Wong ,  Marcos Mockel

IPC: F16L9/14

CPC classification number: F16L9/14 ,  B29C44/24 ,  B29C44/324 ,  B29C48/0021 ,  B29C48/09 ,  B29C48/151 ,  B29C48/21 ,  B29C48/385 ,  B29C63/10 ,  B32B1/08 ,  B32B7/12 ,  B32B27/065 ,  B32B27/08 ,  B32B27/302 ,  B32B27/32 ,  B32B2266/025 ,  B32B2307/302 ,  B32B2307/304 ,  B32B2307/4026 ,  B32B2307/558 ,  B32B2307/714 ,  B32B2597/00 ,  F16L13/0272 ,  F16L58/1054 ,  F16L58/181 ,  F16L59/143 ,  F16L59/20 ,  Y10T29/49888

Abstract: A polymeric composition for insulating fluid and/or gas transport conduits, such as off-shore oil and gas pipelines operating at temperatures of about 200° C. or higher in water depths above 1,000 metres. The outer surface of the conduit is provided with at least one layer of solid or foam insulation comprising a high temperature resistant polysulfone having sulfone, ether and isopropylidene bridging groups, and/or a polyphenylsulfone or a polyethersulfone.

Abstract translation: 用于绝缘流体和/或气体输送管道的聚合物组合物，例如在高于1000米的水深中在约200℃或更高的温度下操作的离岸油和气体管道。 管道的外表面设置有至少一层固体或泡沫绝缘体，其包含具有砜，醚和异亚丙基桥接基团的耐高温聚砜和/或聚苯砜或聚醚砜。

公开(公告)号：US20190154186A1

公开(公告)日：2019-05-23

申请号：US16260878

申请日：2019-01-29

Applicant: SHAWCOR LTD.

Inventor： Roberto Varagnolo ,  Marcos Mockel ,  Catherine Lam ,  Dennis Wong

IPC: F16L59/02 ,  C08J9/228 ,  B29C48/00 ,  B29C48/151 ,  C08J9/32 ,  F16L59/14

Abstract: A method of providing a foamed insulation coating on at least a portion of a pipe, including extruding a melt stream over the pipe portion. The melt stream includes a matrix polymer and expandable fillers in an unexpanded state, the melt stream being maintained at a sufficiently high temperature to maintain the matrix polymer in extrudable form and at a sufficiently high pressure to maintain the expandable fillers in the unexpanded state. Once extruded, the expandable fillers are permitted to expand into an expanded state at a lower pressure.

公开(公告)号：US10234068B2

公开(公告)日：2019-03-19

申请号：US15132568

申请日：2016-04-19

Applicant: SHAWCOR LTD.

Inventor： Roberto Varagnolo ,  Marcos Mockel ,  Catherine Lam ,  Dennis Wong

IPC: F16L59/02 ,  C08J9/228 ,  B29C47/00 ,  B29C47/02 ,  F16L59/14 ,  C08J9/32 ,  B29K105/04 ,  B29L23/00 ,  B29C47/92

Abstract: A method of providing a foamed insulation coating on at least a portion of a pipe, including extruding a melt stream over the pipe portion. The melt stream includes a matrix polymer and expandable fillers in an unexpanded state, the melt stream being maintained at a sufficiently high temperature to maintain the matrix polymer in extrudable form and at a sufficiently high pressure to maintain the expandable fillers in the unexpanded state. Once extruded, the expandable fillers are permitted to expand into an expanded state at a lower pressure.

公开(公告)号：US20200282677A1

公开(公告)日：2020-09-10

申请号：US16753834

申请日：2017-10-05

Applicant: SHAWCOR LTD.

Inventor： Pablo Wiesemann ,  Roberto Del Callejo Vargas ,  Corentin Lazarus ,  Magne Skinstad ,  Craig Sloan ,  Alexandra Sperber ,  Marcos Mockel

IPC: B29C70/84 ,  F16L58/10 ,  B29C45/14 ,  F17D5/00

Abstract: In an injection molded polypropylene field joint of an oil or gas pipeline, the three- dimensional geometry of the injection molded/cast coating can have an influence on the stress placed on the line coating during cooling. Specifically, it has been found that molding or casting a coating having circumferential grooves, or other groove geometry, proximal to the interface with the line coating, will reduce line coating failure proximal to the field joint, in particular line coating failure related to the initial spooling/reeling of the pipe.