RU93058668A - COATING FOR PIPELINES - Google Patents

COATING FOR PIPELINES

Info

Publication number
RU93058668A
RU93058668A RU93058668/06A RU93058668A RU93058668A RU 93058668 A RU93058668 A RU 93058668A RU 93058668/06 A RU93058668/06 A RU 93058668/06A RU 93058668 A RU93058668 A RU 93058668A RU 93058668 A RU93058668 A RU 93058668A
Authority
RU
Russia
Prior art keywords
adhesive
pipeline
heating
pipelines
product
Prior art date
Application number
RU93058668/06A
Other languages
Russian (ru)
Other versions
RU2090797C1 (en
Inventor
Ноэль Марсель Мишиэль Оверберг
Иво Пеест
Original Assignee
Н.В.Рейкем, С.А.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from GB919113563A external-priority patent/GB9113563D0/en
Application filed by Н.В.Рейкем, С.А. filed Critical Н.В.Рейкем, С.А.
Publication of RU93058668A publication Critical patent/RU93058668A/en
Application granted granted Critical
Publication of RU2090797C1 publication Critical patent/RU2090797C1/en

Links

Claims (1)

Изобретение относится к покрытиям трубопроводов в части способа защиты его от окружающей среды, способа покрытия трубопровода и устройства трубопровода. Изобретение решает задачу уменьшения количества тепла и времени нагрева трубопровода, осуществляемых для обеспечения усадки охватывающего его изделия и активизации адгезива. Адгезив содержит 25-40 мас.ч. терполимера полиэтиленалкилакрилата, содержащего малеичный ангидрид и имеющего показатель текучести при плавлении как минимум 40. Адгезив содержит также 25-70 мас. ч. сополимера полиэтиленалкилакрилата, имеющего показатель текучести при плавлении как минимум 40. Адгезив наносят на поверхность восстанавливающегося при нагревании изделия в виде листа или ленты. Восстанавливаемые при нагреве лист или ленту, покрытые с внутренней стороны адгезивом, размещают вокруг оголенного металлического трубопровода или трубопровода, покрытого полимером. Трубопровод может представлять из себя два сваренных между собой трубопровода. Нагрев осуществляют таким образом, чтобы активизировать адгезив и обеспечить требуемую усадку восстанавливающего изделия.The invention relates to coatings of pipelines in terms of a method of protecting it from the environment, a method of coating a pipeline and a pipeline device. The invention solves the problem of reducing the amount of heat and heating time of the pipeline, carried out to ensure the shrinkage of the product covering it and the activation of the adhesive. The adhesive contains 25-40 parts by weight a polyethylene alkyl acrylate terpolymer containing maleic anhydride and having a melt flow rate of at least 40. The adhesive also contains 25-70 wt. including a copolymer of polyethylene alkyl acrylate having a melt flow rate of at least 40. The adhesive is applied to the surface of the product being restored by heating in the form of a sheet or tape. A sheet or tape restored by heating coated on the inside with an adhesive is placed around a bare metal pipe or a polymer coated pipe. A pipeline can be two pipelines welded together. Heating is carried out in such a way as to activate the adhesive and provide the required shrinkage of the restoring product.
RU9293058668A 1991-06-24 1992-06-11 Coats for pipe lines RU2090797C1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB9113563.2 1991-06-24
GB919113563A GB9113563D0 (en) 1991-06-24 1991-06-24 Covering for pipelines
PCT/GB1992/001049 WO1993000214A1 (en) 1991-06-24 1992-06-11 Covering for pipelines

Publications (2)

Publication Number Publication Date
RU93058668A true RU93058668A (en) 1996-09-10
RU2090797C1 RU2090797C1 (en) 1997-09-20

Family

ID=10697202

Family Applications (1)

Application Number Title Priority Date Filing Date
RU9293058668A RU2090797C1 (en) 1991-06-24 1992-06-11 Coats for pipe lines

Country Status (7)

Country Link
US (1) US5482087A (en)
EP (1) EP0606209A1 (en)
JP (1) JPH06508307A (en)
CA (1) CA2109814A1 (en)
GB (1) GB9113563D0 (en)
RU (1) RU2090797C1 (en)
WO (1) WO1993000214A1 (en)

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