Process for the polymerization of olefinic hydrocarbons
AssigneeNippon Oil Co., Ltd.
InventorsYoshio Tajima, Naoki Kataoka, Yosuke Numao, Takashi Seki, Kazuo Matsuura
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Abstract
A catalyst component is disclosed for use in the homo- or copolymerization of olefinic hydrocarbons. The catalyst component is comprised of a first compound of the formula Me.sup.1 (OR.sup.1).sub.p R.sup.2.sub.q X.sup.1.sub.4-p-q and a second compound which is an organocyclic compound having two or more conjugated double bonds. A process is also disclosed for the production of hydrocarbon polymers in which the above catalyst component is combined with a modified organoaluminum compound to form a catalyst composition capable of providing high molecular weight, wide distribution thereof and other desirable qualities in the polymer product.
Claims20
A process for the polymerization of olefinic hydrocarbons which comprises polymerizing an olefinic hydrocarbon in the presence of a catalyst composition comprising:
- a catalyst component comprised of a compound (A) of the formula
- Me.sup.1 (OR.sup.1).sub.p R.sup.2.sub.q X.sup.1.sub.4-p-q
- wherein R.sup.1 and R.sup.2 each are hydrocarbon moieties independently selected from the group consisting of alkyl, alkenyl, aryl and aralkyl groups of 1-24 carbon atoms;
- X.sup.1 is a halogen atom;
- Me.sup.1 is Ti, Zr or Hf;
- 0.ltoreq.p.ltoreq.4;
- 0.ltoreq.q.ltoreq.4;
- and 0.ltoreq.p+q.ltoreq.4;
- an organocyclic compound (B) selected from the group consisting of an organocyclic hydrocarbon compound having two or more conjugated double bonds and an organosilicon compound of the formula
- (Cp).sub.L SiR.sub.4-L
- wherein Cp is a cyclic hydrocarbon group having two or more conjugated double bonds and a total carbon number of 4-24;
- R is a hydrocarbon moiety of 1-24 carbon atoms or hydrogen;
- and 1.ltoreq.L.ltoreq.4;
- and
- a modified organoaluminum compound having 1-100 Al--O--Al bonds in the molecule derived from reacting an organoaluminum compound with water.
Dependencies are inferred from the claim text.