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(19)

(11)

2 688 521

(13)

(51)

IPC

C08L9/00(2006-01-01)

C08L9/02(2006-01-01)

C08L9/06(2006-01-01)

C08L31/04(2006-01-01)

C08L33/26(2006-01-01)

C08K3/04(2006-01-01)

C08K3/06(2006-01-01)

C08K3/22(2006-01-01)

C08K3/36(2006-01-01)

C08K5/09(2006-01-01)

C08K5/31(2006-01-01)

C08K5/3437(2006-01-01)

C08K5/47(2006-01-01)

(21) (22)

Application

2018132626, 2018-09-12

(24)

Start date

2018-09-12

(22)

Actual filing date

2018-09-12

(45)

Published

2019-05-21

(72)

Inventor

Ushmarin Nikolaj FilippovichEfimovskij Egor GennadevichEgorov Evgenij NikolaevichSpiridonov Ivan SergeevichSandalov Sergej IvanovichKoltsov Nikolaj Ivanovich

(73)

Holder

Federalnoe Gosudarstvennoe Byudzhetnoe Obrazovatelnoe Uchrezhdenie Vysshego Obrazovaniya Gosudarstvennyj Universitet Imeni I.N. Ulyanova"

RUBBER MIXTURE Russian patent published in 2019 - IPC C08L9/00 C08L9/02 C08L9/06 C08L31/04 C08L33/26 C08K3/04 C08K3/06 C08K3/22 C08K3/36 C08K5/09 C08K5/31 C08K5/3437 C08K5/47

Abstract RU 2688521 C1

FIELD: chemistry.

SUBSTANCE: invention relates to rubber industry, in particular to production of elastomer materials for sealing purposes, and can be used for inner layer of sealing elements in water-oil-swellable packers used in oil and gas industry. Rubber mixture contains butadiene-nitrile rubber with nitrile of acrylic acid content of 17–20 %, butadiene-methylstyrene rubber SKMS-30ARK, butadiene rubber SKD, Savilen 11808-340, sulfur, 2,2'-dibenzothiazole disulphide, Guanide F, zinc oxide, stearic acid, acetonanil H, technical carbon P 514, Rosil 175, talc, finely powdered mineral powder of schungite, colophony, polyacrylamide AK 639, reagent "Comet-R" and sodium salt of polyacrylic acid PAN-1.

EFFECT: improvement of relative elongation at rupture of rubber and increase of degree of volumetric swelling in mixture of oil and water (1:1 wt%).

1 cl, 2 tbl

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RU 2 688 521 C1

Authors

Ushmarin Nikolaj Filippovich

Efimovskij Egor Gennadevich

Egorov Evgenij Nikolaevich

Spiridonov Ivan Sergeevich

Sandalov Sergej Ivanovich

Koltsov Nikolaj Ivanovich

Dates

2019-05-21—Published

2018-09-12—Filed