FIELD: process engineering.
SUBSTANCE: invention relates to production of moulded articles containing polybutadiene and can be used in tire production as moulded strips for tire sidewalls or treads. Polybutadiene with content of cis-isomer over 95% and polydispersity lower than 2.5 is mixed with highly dispersed silicic acid and/or carbon black and with cross-linking agents, sulphur or sulphur donors, extra process additive and subjected to extrusion at 40-75°C.
EFFECT: higher quality of processing the mixes and quality of formed articles with lower rolling resistance and abrasion.
5 cl, 1 dwg, 2 tbl
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