C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 63/82 (2006.01) C08G 63/68 (2006.01) C08G 63/91 (2006.01) C08G 63/85 (2006.01)
Patent
CA 2183343
This invention relates to a process of producing a moldable polyethylene terephthalate or modified polyethylene terephthalate having an inherent viscosity greater than 0.6 dL/g comprising reacting the diacid component with the diol component such that a combination of a titanium-based catalyst and a phosphorus-based catalyst is used during the polycondensation steps.
Cette invention se rapporte à un procédé de production d'un polytéréphtalate d'éthylène moulable ou d'un polytéréphtalate d'éthylène modifié dont la viscosité inhérente est supérieure à 0,6 dL/g. Ce procédé consiste à faire réagir le composant diacide avec le composant diol de sorte qu'une combinaison d'un catalyseur à base de titane et d'un catalyseur à base de phosphore soit utilisé au cours des étapes de polycondensation.
Davis Thomas Glenn
Hilbert Samuel David
Eastman Chemical Company
Gowling Lafleur Henderson Llp
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