MONOOLEFIN/POLYENE COPOLYMERS, PREPARATION METHOD, COMPOSITION CONTAINING MONOOLEFIN/POLYENE COPOLYMERS, AND THEIR PRODUCTS Russian patent published in 2001 - IPC

FIELD: polymer production. SUBSTANCE: invention, in particular, relates to copolymers of ethylene, α-C3-C18-olefin, and non-conjugated-α,ω-diene containing at least 7 carbon atoms and two easily polymerizable double bonds, wherein content of dimer varies between 0.005 to 0.7 mol %, said copolymer having melt flow index I₂ = 0.001 to 50 g/10 min (measured according to ASTM D- 1238 on condition 190 C/2.16 kg), density d = 0.85-0.97 g/cu.cm (measured according to ASTM D-792). Content of α-C3-C18-olefin in copolymer can reach 17 mol.%. Tension of copolymer melt MT > 1.328-0.7879 log(I₂)+22.5(d-0.85)-40.56 log(I₂) x (d-0.85) g. EFFECT: increased tension of copolymer melt, improved workability, mechanical and optical properties of copolymers. 35 cl, 4 tbl, 21 ex