Back to results
US 3,989,881 AGranted
Catalyst and process for polymerization of olefin
AssigneeMitsubishi Chemical Industries Limited
InventorsKazuo Yamaguchi, Natsuki Kanoh, Toru Tanaka, Nobuo Enokido, Atsushi Murakami, Seiji Yoshida
Life of this patent
Estimating the term…
Abstract
A solid catalytic complex for the polymerization of an olefin has the formula: [MgM.sub.1-n ]X.sub.m . xY wherein M represents a transition metal selected from the group consisting of titanium and vanadium; X represents a halogen atom; Y represents an aliphatic ether or a cyclic ether; n is 0.01 - 0.99; 2<m<4; and 1<x<3.
Claims19
A solid catalytic complex for the polymerization of an olefin of the formula:
- [Mg.sub.n M.sub.1-n ]X.sub.m . xY
- wherein M represents a transition metal selected from the group consisting of titanium and vanadium;
- X represents a halogen atom;
- Y represents an aliphatic ether or a cyclic ether;
- n is 0.01 - 0.99, 2<m<4, and 1<x<3, prepared by co-precipitating the product from an ether solution of (1) an ether complex of a halide of a transition metal selected from the group consisting of titanium and vanadium, and (2) an ether complex of a magnesium halide.
2 more elements
Dependencies are inferred from the claim text.