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(19)

(11)

2 677 145

(13)

(51)

IPC

C08L9/00(2006-01-01)

C08L9/02(2006-01-01)

C08L23/08(2006-01-01)

C08K3/04(2006-01-01)

C08K3/06(2006-01-01)

C08K3/22(2006-01-01)

C08K3/34(2006-01-01)

C08K5/09(2006-01-01)

C08K5/40(2006-01-01)

C08K5/43(2006-01-01)

C08K5/44(2006-01-01)

(21) (22)

Application

2018115442, 2018-04-24

(24)

Start date

2018-04-24

(22)

Actual filing date

2018-04-24

(45)

Published

2019-01-15

(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 COMPOSITION Russian patent published in 2019 - IPC C08L9/00 C08L9/02 C08L23/08 C08K3/04 C08K3/06 C08K3/22 C08K3/34 C08K5/09 C08K5/40 C08K5/43 C08K5/44

Abstract RU 2677145 C1

FIELD: technological processes.

SUBSTANCE: invention relates to the rubber industry, in particular to the production of rubber compounds used for the manufacture of oil-swelling sealing elements used in the oil and gas industry. Rubber mixture contains butadiene-nitrile rubber containing 17–20 % acrylic acid nitrile, isoprene rubber SKI-3, ultrathene 11808-340, N,N'-dithiodimorpholine, thiuram D, sulfenamide C, zinc white, stearic acid, N-nitrosodiphenylamine, technical carbon T 900, grew 175, talc, chalk, Sibplast petroleum resin and Oxypan needle felt.

EFFECT: invention allows to improve the relative elongation at rupture of rubber and to increase the degree of its bulk swelling in oil.

1 cl, 2 tbl

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RU 2 677 145 C1

Authors

Ushmarin Nikolaj Filippovich

Efimovskij Egor Gennadevich

Egorov Evgenij Nikolaevich

Spiridonov Ivan Sergeevich

Sandalov Sergej Ivanovich

Koltsov Nikolaj Ivanovich

Dates

2019-01-15—Published

2018-04-24—Filed