RUBBER COMPOSITION Russian patent published in 2018 - IPC C08L9/00 C08L7/00 C08L9/06 C08K3/06 C08K3/36 C08K5/548 

FIELD: vehicle equipment and accessories.

SUBSTANCE: invention relates to a rubber mixture based on a combination of styrene-butadiene rubber emulsion polymerization with the addition of oil, synthetic cis-butadiene rubbers on a neodymium catalyst and a small fraction of natural rubber and can be used in the tire industry in developing rubber formulations for the tread of summer and all-season tires 13, 14 inches with a road pattern. Rubber mixture contains, at a certain quantitative ratio of the components, a combination of styrene-butadiene rubber of emulsion polymerization with the addition of oil (26–29 %), with synthetic cis-butadiene rubber linear structure and a high content of cis-units on the neodymium catalyst and natural rubber. Rubber mixture also contains fillers – technical carbon of the active brand and silica filler with a specific surface of 165 m²/g, microcrystalline wax based stabilizer, N-(1,3-dimethylbutyl)-N^'-phenyl-n-phenylenediamine based antioxidants, mixture of N,N’-diaryl-p-phenylenediamine and polymerized 2,2,4-trimethyl-1,2-dihydroquinoline, a technological additive based on hydrocarbon resins and a mixture of fatty acids and salts, a binding agent based on bis-(3-triethoxy-silylpropyl)tetrasulfide, vulcanization activators – white zinc and stearic acid, plasticizers – oil with a low content of polycyclic hydrocarbons.

EFFECT: invention provides good technological properties, high strength characteristics, dynamic properties, wear resistance of vulcanizates, rubber compound has a lower tendency to crack formation, better resistance to vapor and water permeability, reduces wear resistance.

1 cl, 2 tbl