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:
Dec. 05, 2006
Filed:
Jul. 02, 2002
Takahiro Nakajima, Ohtsu, JP;
Ken-ichi Tsukamoto, Ohtsu, JP;
Shoichi Gyobu, Ohtsu, JP;
Nobuo Moriyama, Ohtsu, JP;
Mitsuyoshi Kuwata, Ohtsu, JP;
Yoshinao Matsui, Ohtsu, JP;
Seisyu Hayashi, Osaka, JP;
Katsuya Ito, Ohtsu, JP;
Masaou Matsuda, Tsuruga, JP;
Takahiro Nakajima, Ohtsu, JP;
Ken-ichi Tsukamoto, Ohtsu, JP;
Shoichi Gyobu, Ohtsu, JP;
Nobuo Moriyama, Ohtsu, JP;
Mitsuyoshi Kuwata, Ohtsu, JP;
Yoshinao Matsui, Ohtsu, JP;
Seisyu Hayashi, Osaka, JP;
Katsuya Ito, Ohtsu, JP;
Masaou Matsuda, Tsuruga, JP;
Toyo Boseki Kabushiki Kaisha, Osaka, JP;
Abstract
This invention provides a novel polymerization catalyst other than antimony compounds, polyester produced by using the same and a process for producing polyester. The polycondensation catalyst of this invention is a polyester polymerization catalyst comprising an aluminum compound and a phosphorus compound having a specific structure. Further, this invention relates to polyester produced by using this polyester polymerization catalyst and a process for producing polyester. Further, this invention relates to fibers, films and hollow molded articles comprising the polyester.