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2 319 891

(13)

(51)

IPC

F16L58/12(2006-01-01)

C08L95/00(2006-01-01)

C04B26/26(2006-01-01)

C09D195/00(2006-01-01)

(21) (22)

Application

2006130557/04, 2006-08-24

(24)

Start date

2006-08-24

(22)

Actual filing date

2006-08-24

(45)

Published

2008-03-20

(72)

Inventor

Igoshin Jurij Gennad'EvichKorobitsyn Aleksej Jur'EvichKremenetskaja Elena Vasil'Evna

(73)

Holder

Zakrytoe Aktsionernoe Obshchestvo

BITUMEN POLYMER MASTIC FOR COILED MATERIAL USED FOR CORROSION PROTECTION OF PIPES AND PIPING SYSTEMS Russian patent published in 2008 - IPC F16L58/12 C08L95/00 C04B26/26 C09D195/00

Abstract RU 2319891 C1

FIELD: production of materials used for corrosion protection of pipes and pining systems; protection of external steel pipe lines carrying natural gas, oil and petroleum products against underground and atmospheric corrosion.

SUBSTANCE: proposed mastic contain bitumen БНК 40/180 (or БНК 45/190), polymer and plasticizing agent; used as polymer is styrene-butadiene thermoelastic elastomer; used as plasticizing agent is oil ПН-6 at the following concentration of components, mass-%: bitumen, 77-99; polymer, 0.5-15; plasticizing agent, 0.5-8. Proposed bitumen polymer mastic is applied on polymer base in molten state by mechanized method; cross-linked polyethylene base or PVC tape may be used as base. Coiled material thus obtained is used as wrapping for insulation of pipes.

EFFECT: enhanced corrosion protection of pipes due to enhanced adhesion of mastic to steel and to base; enhanced freeze resistance.

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RU 2 319 891 C1

Authors

Igoshin Jurij Gennad'Evich

Korobitsyn Aleksej Jur'Evich

Kremenetskaja Elena Vasil'Evna

Dates

2008-03-20—Published

2006-08-24—Filed