FIELD: chemistry.
SUBSTANCE: present invention relates to ethylene/1-butene copolymer with excellent recyclability. Ethylene/1-butene copolymer has a melt fluidity ratio (MFR21.6/MFR2.16) from 30 to 60; molecular-weight distribution (Mw/Mn, PDI) from 8 to 20; broad orthogonal comonomer distribution (BOCD) from 1 to 2; short-chain branch (SCB) content (content of branches having from 2 to 7 carbon atoms per 1000 carbon atoms, unit: branch/1000 C) from 7 to 20; and resistance to cracking under pressure from 1000 to 20,000 h, measured using full-cut creep test (FCNT) in accordance with ISO 16770 standard at 4.0 MPa and 80°C.
EFFECT: development of ethylene/1-butene copolymer with excellent recyclability and excellent resistance to cracking under pressure.
9 cl, 7 dwg, 2 tbl, 7 ex
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