| 摘要 |
FIELD: chemistry.SUBSTANCE: copolymer of ethylene and a (C3-C18) ?-olefin comonomer has density of 0.900-0.940 g/cm, falling dart impact strength (F) satisfying the correlation with Vicat softening point as expressed by formulae(1) and(2), where V is Vicat softening point measured according to ASTM D 1525; and F is falling dart impact strength. The ethylene copolymer having improved impact properties is applicable to film, injection, compound, sheet, rotational, pipe or blow moulding.EFFECT: producing ethylene copolymers having excellent processability and high impact strength owing to high rigidity.13 cl, 4 dwg, 3 tbl, 14 ex |
