Catalyst components for polymerization of olefins
AssigneeNippon Oil Co., Ltd.
InventorsNaoki Kataoka, Yosuke Numao, Takashi Seki, Yoshio Tajima, Kazuo Matsuura
Life of this patent
Estimating the term…
Abstract
A process for the polymerization of olefinic hydrocarbons is carried out in the presence of a catalyst comprising a catalyst component derived from reacting a compound of the formula Me.sup.1 R.sup.1.sub.n X.sup.1.sub.4-n, a compound of the formula Me.sup.2 R.sup.2.sub.m X.sup.2.sub.z-m, an organocyclic compound having two or more conjugated double bonds and a carrier of inorganic or polymeric material, and a modified organoaluminum compound having Al--O--Al bonds, the resulting polyolefins having a relatively wide molecular weight distribution, a relatively narrow composition distribution and increased bulk density.
Claims6
A process for the manufacture of polyolefins which comprises polymerizing an olefinic hydrocarbon in the presence of a catalyst composition comprised of a first component (I) and a second component (II),
- said first component (I) resulting from the reaction of a compound (i) of the formula ##STR1## wherein R.sup.1 is a hydrocarbon moiety of 1-24 carbon atoms, X.sup.1 is a halogen atom, Me.sup.1 is zirconium, titanium or hafnium, and n is an integer of 0.ltoreq.n.ltoreq.4;
- a compound (ii) of the formula ##STR2## wherein R.sup.2 is a hydrocarbon group of 1-24 carbon atoms, X.sup.2 is an alkoxy group of 1-12 carbon atoms or a halogen atom, Me.sup.2 is an element of Groups I-III in the Periodic Table, z is the valence of Me.sup.2, and m is an integer of 0.ltoreq.m.ltoreq.3;
- an organocyclic compound (iii) having two or more conjugated double bonds represented by the formula
- (Cp).sub.r SiR.sub.s.sup.3 X.sub.4-r-s.sup.3
- wherein Cp is a cyclopentadienyl group;
- R.sup.3 is a hydrocarbon group of 1-24 carbon atoms;
- X.sup.3 is a halogen atom;
- and r and s are 0<r.ltoreq.4 and 0.ltoreq.s.ltoreq.3, respectively, where r+s.ltoreq.4;
- and
- an inorganic carrier or particulate polymer carrier or mixtures thereof (iv),
- said second component (II) being a modified organoaluminum compound having Al--O--Al bonds derived from the reaction of an organoaluminum compound and water.
A process for the manufacture of polyolefins which comprises polymerizing an olefinic hydrocarbon in the presence of a catalyst composition comprised of a first component (I) and a second component (II),
- said first component (I) resulting from the reaction of a compound (i) of the formula ##STR3## wherein R.sup.1 is a hydrocarbon moiety of 1-24 carbon atoms, X.sup.1 is a halogen atom, Me.sup.1 is zirconium, titanium or hafnium, and n is an integer of 0.ltoreq.n.ltoreq.4l
- a compound (ii) of the formula ##STR4## wherein R.sup.2 is a hydrocarbon group of 1-24 carbon atoms, X.sup.2 is an alkoxy group of 1-12 carbon atoms or a halogen atom, Me.sup.2 is an element of Groups I-III in the Periodic Table, z is the valence of Me.sup.2, and m is an integer of 0.ltoreq.m.ltoreq.3;
- an organocyclic compound (iii) having two or more conjugated double bonds represented by the formula
- (Ind).sub.t SiR.sub.u.sup.4 X.sub.4-t-u.sup.4
- wherein Ind is an indenyl group;
- R.sup.4 is a hydrocarbon group of 1-24 carbon atoms;
- X.sup.4 is a halogen atom;
- and t and u are 0<t.ltoreq.4 and 0.ltoreq.u.ltoreq.3 respectively, where t+u.ltoreq.4;
- and
- an inorganic carrier or particulate polymer carrier or mixtures thereof (iv),
- said second component (II) being a modified organoaluminum compound having Al--O--Al bonds derived from the reaction of an organoaluminum compound and water.
Dependencies are inferred from the claim text.