MULTI-LAYER INSULATING COAT Russian patent published in 2009 - IPC F16L58/04

Abstract RU 2368840 C2

FIELD: construction.

SUBSTANCE: invention is related to construction of pipeline transport and is used in corrosion protection of steel pipelines in field conditions. Coat comprises serially installed shock-resistant layer, internal additional layer, containing butyl rubber and additive, the first internal adhesive layer, containing butyl rubber, hydrocarbon substance, additives, and additionally comprises adhesive layer applied on surface of internal shock-resistant layer, the second internal adhesive layer and priming layer, containing butyl rubber, hydrocarbon substance and additives. Compositions of layers have been given.

EFFECT: higher reliability of pipeline corrosion protection.

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RU 2 368 840 C2

Authors

Kolgurin Aleksandr Nikolaevich

Stojanov Oleg Vladislavovich

Dates

2009-09-27—Published

2007-11-22—Filed