FIELD: chemistry.
SUBSTANCE: invention relates to a polyolefin synthesis method and more specifically to a polyethylene synthesis method. Polyethylene is a copolymer of ethylene with 1-alkenes. The invention also relates to polyethylene synthesis catalyst systems. The catalyst system is a mixture of metallocenes: hafnocene and an iron-based complex, an activating compound and a support. The invention also relates to films made from polyethylene and packets made from the said films.
EFFECT: disclosed catalyst system enables production of polyethylene with given molecular weight distribution in a single reactor.
16 cl, 3 tbl, 3 ex
| Title | Year | Author | Number |
|---|---|---|---|
| POLYETHYLENE FOR INJECTION MOULDING | 2005 |
|
RU2395527C2 |
| POLYETHYLENE AND CATALYST COMPOSITION FOR POLYETHYLENE SYNTHESIS | 2005 |
|
RU2387681C2 |
| ADHESIVE POLYMER COMPOSITION | 2009 |
|
RU2477299C2 |
| IMPACT RESISTANT LOW-DENSITY POLYETHYLENE (LLDPE) COMPOSITION AND FILMS MADE THEREFROM | 2009 |
|
RU2517166C2 |
| IMPACT-RESISTANT LINEAR LOW DENSITY POLYETHYLENE AND FILMS MADE THEREFROM | 2009 |
|
RU2509782C2 |
| METHOD OF TRANSITION BETWEEN NON-COMPATIBLE SYSTEMS OF OLEFIN POLYMERISATION CATALYSTS | 2009 |
|
RU2510703C2 |
| MOULDABLE COMPOSITION CONTAINING POLYETHYLENE FOR MAKING FILMS AND METHOD OF PREPARING MOULDABLE COMPOSITION IN PRESENCE OF MIXED CATALYST | 2006 |
|
RU2421485C2 |
| METHOD OF REGULATING RELATIVE ACTIVITY OF VARIOUS ACTIVE CENTRES OF HYBRID CATALYSTS | 2006 |
|
RU2418808C2 |
| METHOD OF TRANSITIONING BETWEEN INCOMPATIBLE OLEFIN POLYMERISATION CATALYST SYSTEMS | 2009 |
|
RU2501813C2 |
| MESO-SELECTIVE SYNTHESIS OF ANSA-METALCENS | 2004 |
|
RU2362782C2 |
