The butadiene-alphamethylstyrene (styrene) rubber is produced by emulsion copolymerization of butadiene and alphamethylstyrene (styrene) at low temperature with an emulsifier being a mixture of rosin soaps and synthetic fatty acids. Vts-150 is used as an antioxidant.
Mooney viscosity 47-56
Viscosity lot spread ± 2.5
Conditional tensile strength, mpa(kgs/cm²), not less than 27.9 (285)
Elongation at rupture, % 550-750
Residual deformation after rupture, %, not more than 20
Rebound elasticity, %, not less than 39
Loss of the mass on drying, %, not more than 0.35
Fraction of total mass:
Ash, %, not more than
Cu, %, not more than
Fe, %, not more than
25kg pp bag
