M
Masaaki Nabika
Researcher at Sumitomo Chemical
Publications - 28
Citations - 321
Masaaki Nabika is an academic researcher from Sumitomo Chemical. The author has contributed to research in topics: Catalysis & Alkyl. The author has an hindex of 10, co-authored 28 publications receiving 313 citations.
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Patent
Transition metal complex, process for the preparation thereof, polymerization catalyst for olefins containing the complex, and process for producing olefin polymers
Hiroaki Katayama,Masaaki Nabika,Akio Imai,Akira Miyashita,Tsuyoshi Watanabe,Hirofumi Johohji,Yoshiaki Oda,Hidenori Hanaoka +7 more
TL;DR: A transition metal complex represented by general formula (1) as mentioned in this paper is a group having a cyclopentadiene-type anionic skeleton, and a process for the preparation thereof; an intermediate of the transition-metal complex; a polyurethane catalyst for olefins containing the transition -metal complex, as well as a polymerization catalyst for producing olefin polymers.
Patent
Transition metal compound, catalyst for addition polymerization, and process for producing addition polymer
Masaaki Nabika,Miyatake Tatsuya +1 more
TL;DR: In this article, a catalyst for addition polymerization obtained by bringing the following (A) into contact with a specific organic aluminum compound and/or aluminoxane, and (B) a specific boron compound, and a process for producing an addition polymer with the same.
Journal ArticleDOI
ansa-Cyclopentadienyl-Phenoxy Titanium(IV) Complexes (PHENICS): Synthesis, Characterization, and Catalytic Behavior in Olefin Polymerization
Masaaki Nabika,Hiroaki Katayama,Tsuyoshi Watanabe,Hiroshi Kawamura-Kuribayashi,Kazunori Yanagi,Akio Imai +5 more
TL;DR: A series of ansa-cyclopentadienyl-phenoxy titanium complexes (PHENICS: phenoxy-induced complex of Sumitomo) have been synthesized and characterized.
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Synthesis, structure and α-olefin polymerization activity of group 4 metal complexes with [OSSO]-type bis(phenolate) ligands
TL;DR: The tetradentate bis(phenol) ligands, [{2,2′-(HOC6H2-4,6-R2)2CH2SCH2CH 2SCH 2}Bz2] (R = tBu, 2; Br, 3) react with MBz4 (M = Zr, Hf) to yield the corresponding dibenzyl complexes in a good to very good yield as mentioned in this paper.
Journal ArticleDOI
Synthesis and characterization of titanium alkyl, oxo, and diene complexes bearing a SiMe2-bridged phenoxy-cyclopentadienyl ligand and their catalytic performance for copolymerization of ethylene and 1-hexene
Hidenori Hanaoka,Takahiro Hino,Masaaki Nabika,Tetsuya Kohno,Kazunori Yanagi,Yoshiaki Oda,Akio Imai,Kazushi Mashima +7 more
TL;DR: A series of titanium complexes bearing a SiMe2-bridged phenoxy-cyclopentadienyl ligand were synthesized and characterized, and their catalytic behavior for copolymerization of ethylene and 1-hexene was investigated as discussed by the authors.