FIELD: technological processes.
SUBSTANCE: invention relates to a novel aluminum nitrile rubber, a method for production thereof, cured mixtures based on said nitrile rubber, a method of producing vulcanisates from said mixtures, as well as vulcanisates obtained. Colour-stable, low-salt nitrile rubber contains repeating structural units of at least one α,β-unsaturated nitrile monomer and at least one conjugated diene monomer and has an aluminum index E corresponding to the general given formula (I) of less than or equal to 35.0 ppm/MU in terms of nitrile rubber. Polymerised latex containing nitrile rubber is coagulated using at least one aluminum salt. Vulcanised mixture containing nitrile rubber contains at least one cross-linking agent. Volcanized rocks are obtained in the form of molded parts.
EFFECT: invention enables to obtain nitrile rubber, having good colour stability and certain content of aluminum, and at the same time, very good processing properties and good vulcanisation profile.
15 cl, 8 tbl
Authors
Dates
2019-05-28—Published
2015-11-25—Filed