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Hayashi; Seisyu
Osaka, JP
No. of patents:

Patent Number Title Of Patent Date Issued
7144614 Polyester polymerization catalyst, polyester produced by using the same, and process for produci December 5, 2006
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 an

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