C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 63/82 (2006.01) C08G 63/84 (2006.01) C08J 5/00 (2006.01) C08J 5/18 (2006.01) D01F 6/62 (2006.01) C08G 63/83 (2006.01) C08G 63/87 (2006.01)
Patent
CA 2420958
A polymerization catalyst for polyester production which contains neither a germanium compound nor an antimony compound as a major component. It contains aluminum as the main metallic ingredient, has excellent catalytic activity, and gives a polyester which is effectively inhibited from suffering thermal degradation, during melt molding, without deactivating or removing the catalyst, and is excellent in thermal stability, stability to thermal oxidation, and hydrolytic resistance. The polymerization catalyst contains as a first metallic ingredient at least one member selected among aluminum and compounds thereof and further contains a phosphorus compound represented by a specific chemical formula. The polyester produced with this catalyst is usable as fibers, films, sheets, various moldings including hollow moldings, etc.
La présente invention concerne un catalyseur de polymérisation permettant la production de polyester ne contenant ni composé de germanium, ni composé d'antimoine en tant que composante principale. Ledit catalyseur contient de l'aluminium en tant que composante métallique principale, a une excellente activité catalytique, permet la formation d'un polyester qui est efficacement protégé des dommages thermiques lors du moulage par fusion, sans désactivation ou élimination du catalyseur, et a une excellente stabilité thermique, stabilité à l'oxydation thermique, et résistance hydrolytique. Le catalyseur de polymérisation contient comme première composante métallique au moins un élément choisi parmi l'aluminium et ses composés, et contient également un composé de phosphore représenté par une formule chimique spécifique. Le polyester produit à l'aide de ce catalyseur peut être utilisé sous la forme de fibres, de films, de feuilles, de différents moulages comprenant les moulages creux, etc.
Fukuda Hiroki
Gyobu Shoichi
Ikehata Yoshitomo
Kageyama Katsuhiko
Kuwata Mitsuyoshi
Marks & Clerk
Toyo Boseki Kabushiki Kaisha
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