PLASTICIZER FOR RUBBER PRODUCTION (EMBODIMENTS) Russian patent published in 2024 - IPC C08K5/03 C08K5/01 

FIELD: oil refining.

SUBSTANCE: invention relates to the production of carcinogenic safe aromatic fillers and plasticizers for rubber. A plasticizer for the production of rubber is disclosed. The base of the plasticizer is a native low-wax oil with a kinematic viscosity at 100°C in the range of 16-23 mm²/s. In addition, the plasticizer base is characterized by a benzo(a)pyrene content of not more than 1 mg/kg and a sum of eight carcinogenic polyaromatic hydrocarbons, including benzo(a)anthracene, chrysene, benzo(b)fluoranthene, benzo(k)fluoranthene, benzo(j) fluoranthene, benzo(a)pyrene, benzo(e)pyrene, dibenz(a,h)anthacene, no more than 10 mg/kg. The content of paraffin hydrocarbons in the composition of the base does not exceed 4 wt.%, naphthenic hydrocarbons 12-25 wt.%, mono- and bicyclic aromatic hydrocarbons 5-17 wt.%, polycyclic aromatic hydrocarbons 15-27 wt.%, resins 12-25 wt.% and asphaltenes 20-30 wt.%. In addition, a plasticizer for the production of rubber is disclosed, which includes a base, which is a mixture of two components, as well as a method for producing a plasticizer and the use of low-paraffin native oil as a plasticizer.

EFFECT: production of an environmentally friendly rubber plasticizer with a benzo(a)pyrene content of not more than 1 mg/kg and a total of 8 carcinogenic polycyclic aromatic hydrocarbons of not more than 10 mg/kg.

15 cl, 6 tbl, 15 ex