OLEFIN POLYMERIZATION PROCESS Russian patent published in 1999 - IPC

Abstract RU 2143439 C1

FIELD: polymerization catalysts. SUBSTANCE: at least one olefin is brought into contact with catalytic system containing solid catalytic complex based on magnesium, transition metal, and halogen; and organometallic compound with Ia, IIa, IIb, IIIa, and IVa group metals. Solid catalytic complex is prepared by interaction of at least one magnesium compound with at least one IVb or Vb group transition metal to form liquid complex, which is then precipitated in solid form by agency of halogen-containing organoaluminum compound. Solid complex is separated and treated with halogen-containing organoaluminum compound having general formula AlR_nX_3-n. EFFECT: increased apparent density of polyolefins. 19 cl, 4 ex

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RU 2 143 439 C1

Authors

Bernar Van Der Shrik

Jiang Bian

Sharl' Detres

Dates

1999-12-27—Published

1995-09-21—Filed