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2 037 733

(13)

C1

(51)

IPC

(21) (22)

Application

93031976/29, 1993-06-16

(22)

Actual filing date

1993-06-16

(45)

Published

1995-06-19

(72)

Inventor

Drejtser V.I.Khramenkov S.V.

(73)

Holder

Drejtser Vladimir Isaakovich

METHOD FOR COATING OF PIPELINE INNER SURFACE Russian patent published in 1995 - IPC

Abstract RU 2037733 C1

FIELD: construction and repair of pipelines. SUBSTANCE: made preliminarily is lining shell of inner and outer film hoses with fibrous hose filler impregnated with thermosetting binder and located between said inner and outer film hoses. Shell is sealed and duration of holding is established from 1 to 30 days. Filler-binder ratio is selected from 30:70 to 50:50 wt. After holding, the shell is introduced into pipeline, pressed to pipeline inner surface by suppling working agent and curing the shell by binder polymerization. EFFECT: higher efficiency.

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RU 2 037 733 C1

Authors

Drejtser V.I.

Khramenkov S.V.

Dates

1995-06-19—Published

1993-06-16—Filed

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