D - Textiles – Paper – 01 – F
Patent
D - Textiles, Paper
01
F
D01F 6/92 (2006.01) D03D 15/00 (2006.01) D04H 1/42 (2006.01)
Patent
CA 2662400
Disclosed is a fiber composed of a polylactic acid and having excellent strength, heat resistance and thermal shrinkage resistance. Also disclosed is a method for producing such a fiber. Specifically disclosed is a fiber composed of a composition containing (i) a poly(L-lactic acid) having a weight average molecular weight of 50,000-300,000 (component A), (ii) a poly(D-lactic acid) having a weight average molecular weight of 50,000-300,000 (component B), and (iii) a phosphoric acid ester metal salt (component C) in an amount of 0.01-5 parts by weight per 100 parts by weight of the total of the component A and the component B. This fiber has a strength of 2.5-10 cN/dTex. Also specifically disclosed is a method for producing such a fiber.
La présente invention concerne une fibre constituée d'un acide polylactique caractérisé par une excellente résistance à la chaleur et au retrait thermique. L'invention concerne également le processus de fabrication d'une telle fibre. L'invention concerne de façon spécifique une fibre constituée d'une composition contenant (i) un poly(acide polylactique L) dont le poids moléculaire moyen est compris entre 50 000 et 300 000 (composant A), (ii) un poly(acide lactique D) dont le poids moléculaire moyen est compris entre 50 000 et 300 000 (composant B), et (iii) un sel métallique d'ester d'acide phosphorique (composant C) suivant une quantité représentant entre 0,01 et 5 parties en poids pour 100 parties en poids total des composants A et B. Cette fibre a une force de 2,5-10 cN/dTex. L'invention concerne également et plus spécifiquement une méthode de production d'une telle fibre.
Ikegame Midori
Matsuda Takaaki
To Shin
Borden Ladner Gervais Llp
Musashino Chemical Laboratory Ltd.
Teijin Limited
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