The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 18, 2008
Filed:
May. 19, 2004
Sadahiko Matsuura, Sodegaura, JP;
Naoto Matsukawa, Sodegaura, JP;
Makoto Mitani, Sodegaura, JP;
Junji Saito, Sodegaura, JP;
Terunori Fujita, Sodegaura, JP;
Yasushi Tohi, Sodegaura, JP;
Koji Endo, Sodegaura, JP;
Kenji Iwamasa, Ichihara, JP;
Keiko Takahashi, Ichihara, JP;
Sadahiko Matsuura, Sodegaura, JP;
Naoto Matsukawa, Sodegaura, JP;
Makoto Mitani, Sodegaura, JP;
Junji Saito, Sodegaura, JP;
Terunori Fujita, Sodegaura, JP;
Yasushi Tohi, Sodegaura, JP;
Koji Endo, Sodegaura, JP;
Kenji Iwamasa, Ichihara, JP;
Keiko Takahashi, Ichihara, JP;
Mitsui Chemicals, Inc., Tokyo, JP;
Abstract
An ethylene-based polymer which is a copolymer obtained from ethylene and a C3 to C10α-olefin and satisfies the following requirements (i), (ii), (iii) and (iv) simultaneously provides a blow-molded product and an extrusion-molded product excellent in moldability, mechanical strength and outward appearance. The ethylene-based polymer of the invention is preferably produced by copolymerizing ethylene with a C3 to C10 α-olefin, in the presence of a solid catalyst carrying, on (C) a solid carrier, a mixed transition metal compound consisting of (A1) a group 4 transition metal compound containing a specific salicyl aldimine ligand and (A2) a group 4 transition metal compound containing a specific cyclopentadienyl ligand and (B) at least one compound selected from (b-1) an organometallic compound, (b-2) an organoaluminum oxy compound, and (b-3) a compound reacting with the transition metal compound to form an ion pair.