FIELD: chemistry.
SUBSTANCE: present invention relates to a method of changing distribution of the composition of an ethylene and alpha-olefin copolymer by changing at least one or more of the following parameters: molar ratio of hydrogen to ethylene, molar ratio of the comonomer to ethylene, ethylene partial pressure and temperature in the reactor. The present invention also relates to a method of producing a first and a second ethylene and alpha-olefin copolymer.
EFFECT: possibility of realising methods of regulating distribution of composition of polyolefin without the need to use mixed catalysts, multiple reactors and agents which are capable of condensation and/or mixing after the reactor.
26 cl, 3 tbl, 13 ex, 5 dwg
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