Modified cross-section polyester fibers

D - Textiles – Paper – 01 – F

Patent

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Details

D01F 6/62 (2006.01) C08G 63/85 (2006.01) C08G 63/87 (2006.01) D01D 5/253 (2006.01)

Patent

CA 2513351

Polyester fibers having a deformed section are produced from a polyester polymer which is obtained by polycondensing an aromatic dicarboxylate ester in the presence of a catalyst containing a mixture of a Ti component (A) comprising at least one a titanium alkoxide or a reaction product thereof with a specific carboxylic acid or its anhydride with a P compound component (B) represented by the following general formula (III) and/or a reaction product of a Ti compound component (C) with a P compound component (D) represented by the following general formula (IV). The obtained fibers have a favorable color tone and excellent qualities without showing fluffing. (see formula III) (see formula IV)

L'invention concerne des fibres de polyester ayant une section déformée, produites à partir d'un polymère de polyester obtenu par polycondensation d'un ester de dicarboxylate aromatique en présence d'un catalyseur renfermant un mélange d'un composant à base de Ti (A) comprenant au moins un alcoxyde de titane ou un produit issu de la réaction de ce dernier avec un acide carboxylique spécifique ou son anhydride avec un composant à base de P (B) représenté par la formule générale suivante (III) et/ou un produit issu de la réaction d'un composant à base de Ti (C) avec un composant à base de P (D) représenté par la formule générale suivante (IV). Les fibres obtenues ont une meilleure couleur, présentent d'excellentes qualités et ne peluchent pas.

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