FROST-RESISTANT RUBBER MIXTURE BASED ON COMBINATION OF BUTADIENE-NITRILE AND BUTADIENE RUBBER FOR USE IN HYDROCARBON MEDIA Russian patent published in 2024 - IPC C08L9/00 C08L45/02 C08K5/09 C08K3/04 C08K3/22 C08K5/44 C08K5/14 C08K3/06 C08K5/34 C08K5/18 C08K5/10 

FIELD: chemistry.

SUBSTANCE: invention relates to a rubber mixture used in the manufacture of frost-resistant rubber articles for various functional purposes, operating in hydrocarbon media as protective casings, sealing rings, cuffs, glands, etc. Rubber mixture contains the following components, with the following ratios of ingredients, wt.pts.: butadiene-nitrile rubber “БНКС-18” “АМН 40.0–60.0”, butadiene rubber “СКД-В 60.0–40.0”, stearic acid 1.0, technical carbon “П803 80.0”, technical carbon N550 10.0, dibutyl phthalate 5.0, zinc oxide 1.5, diaphene IPPD 1.0, acetonanil 1.0, indenecumarone resin 1.0, sulphenamide “Ц 1.0”, dicumyl peroxide 1.0, sulphur 1.0.

EFFECT: achieving improved elastic-strength characteristics of the rubber mixture, which increases service life of rubber articles based on it, including during operation in hydrocarbon media.

1 cl, 3 tbl, 7 ex