RUBBER MIX Russian patent published in 2007 - IPC C08L9/02 C08K13/02 C08K3/04 C08K3/06 C08K3/22 C08K3/36 C08K5/09 C08K5/17 C08K5/18 C08K7/02 

FIELD: rubber industry; production of rubber mixes used for manufacture of collar seals for oil equipment.

SUBSTANCE: proposed rubber mix contains the following constituents, mass-% (per 100 parts by mass of rubber): butadiene-nitrile rubber Grade БНКС-40AM and БНКС-40AMH, 80.0; hydrogenated butadiene-nitrile rubber Grade БНКВ, 40-30; Terban, 20.0; sulfur, 3.5; sulfenamide M, 0.50; altax, 0.50; stearic acid, 1.00; colophony, 2.0; dibutoxyethyl adipate, 11.0; white carbon, 5.0; zinc white, 4.0; diafen, 2.0; commercial carbon П-803, 20.0; commercial carbon П-245; modifying agent РУ-Д, 2.0; aramide or polyamide fibers, 10.00.

EFFECT: enhanced tear resistance of vulcanizing agents; increased service life of collar seal; possibility of using collar seals at low temperatures.

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