Mitsui Chemicals, Inc.

Yukihiro Takagi

Terunori Fujita

Shigekazu Matsui

Yasuhiko Suzuki

Yasunori Yoshida

Tomoaki Matsugi

Takashi Nakano

Yoshihisa Inoue

Masatoshi Nitabaru

Kazutaka Tsuru

Makoto Mitani

Junji Saito

Hidetsugu Tanaka

A process for producing a polar olefin copolymer comprises copolymerizing a non-polar olefin and a polar olefin in the presence of a transition metal compound selected from Groups 4, 5, 6 and 11 of the periodic table, which is represented by the following formula (IV): wherein M' is a transition metal atom selected from Groups 4, 5, 6 and 11 of the periodic table, m is an integer of 1 to 6, A is &#x2014;O&#x2014;, &#x2014;Si&#x2014;, &#x2014;Se&#x2014;, &#x2014;N(R)&#x2014;, n is a number satisfying a valence of M&#x2032;, Rto Rand Rare each a hydrogen atom, a halogen atom, a hydrocarbon group and the like, and X is a halogen atom, an oxygen atom, a hydrocarbon group and the like, and at least one compound (B) selected from the group consisting of an organometallic compound (B-1), an organoaluminum oxy-compound (B-2) and an ionic ionizing compound (B-3). Therefore, the process is capable of obtaining a polar olefin copolymer having excellent properties under mild polymerization conditions.

Process for producing polar olefin copolymer and polar olefin copolymer obtained thereby

A process for polymerizing an olefin is capable of polymerizing an olefin with excellent polymerization activity, and comprises polymerizing or copolymerizing an olefin at a polymerization reaction temperature of 50 to 200&#xb0; C. in the presence of a catalyst comprising a transition metal compound (A) represented by the following formula (I), a compound (B-1) having a reduction ability which reacts with the transition metal compound (A) to convert an imine structure moiety to a metal amide structure, and a compound (B-2) which reacts with the transition metal compound (A) to form an ion pair;wherein M is a transition metal atom of Groups 3 to 11 of the periodic table; m is an integer of 1 to 6; Y is O, S, Se, or &#x2014;C(R)&#x2014;; Rto Rmay be the same or different, and are each a hydrogen atom, a halogen atom, a hydrocarbon group, an oxgen-containing group, a nitrogen-containing group and the like; n is a number satisfying a valence of M; and X is a hydrogen atom, a halogen atom, a hydrocarbon group and the like.

Process for the polymerization olefins

Olefin polymerization catalyst and polymerization process

The present invention is intended to provide an olefin polymerization catalyst comprising a novel transition metal compound and having an excellent olefin polymerization activity and to provide a process for olefin polymerization.

Catalyst for olefin polymerization and method of polymerizing olefin

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Sodegaura, Japan

Yukihiro Takagi