NITRILE RUBBER, METHOD FOR PRODUCTION THEREOF, VULCANISED MIXTURE CONTAINING SAID NITRILE RUBBER, METHOD FOR PRODUCTION THEREOF, VULCANISATE BASED ON SAID VULCANISED MIXTURE AND METHOD OF PRODUCING SAID VULCANISATE Russian patent published in 2018 - IPC C08F236/12 C08F2/38 C08L9/02 

FIELD: chemistry.

SUBSTANCE: invention relates to nitrile rubber. Nitrile rubber contains repeating links of at least one α,β-unsaturated nitrile monomer and at least one conjugated diene monomer. Said rubber is characterised by that it has emission factor E according to formula (I) less than or equal to 0.25 mg/(kg*Mooney units):

where [volatile components] means the concentration of volatile components in mg/(kg nitrile rubber) when determined by TDS-GC/MS test according to VDA 278 recommendation (version 09.2002) between 28.4 minutes and 34.0 minutes, including the volatile components of tertiary nonyl mercaptan, [Mooney viscosity] is the Mooney viscosity ML 1+4 determined according to ASTM D1646 at 100 °C of nitrile rubber in Mooney units and [nitrile content] is specified as dimensionless content of α,β-unsaturated nitrile in nitrile rubber in wt% when determined according to DIN 53 625 according to Kjeldahl. Other objects of the invention are: a method for producing nitrile rubber, a vulcanisable mixture containing nitrile rubber, a method for producing same, a vulcanisate based on the vulcanisable mixture, and a method for producing a vulcanisate.

EFFECT: nitrile rubber is characterised by a particularly low emission factor and enables to obtain vulcanisates with a favourable profile of properties that are of particularly excellent quality when used in odour-sensitive areas.

15 cl, 4 tbl