Teijin Limited

Musashino Chemical Laboratory, Ltd.

Teijin Chemicals Limited

Takaaki Matsuda

Hirotaka Suzuki

Shin To

Katsuhiko Hironaka

Kiyotsuna Toyohara

Fumitaka Kondo

Ryuji Nonokawa

Yuichi Matsuno

Kohei Endo

Midori Ikegame

Keiichiro Ino

Katsuhiko c/o Teijin Chemicals Ltd Hironaka

Yuichi c/o Teijin Chemicals Ltd Matsuno

Fumitaka c/o Teijin Chemicals Ltd Kondo

Keiichiro c/o Teijin Chemicals Ltd Ino

There are provided a resin composition including a polylactic acid which (i) includes a poly-L-lactic acid (component B-1) and a poly-D-lactic acid (component B-4), (ii) has a weight ratio of the component B-1 to the component B-4 (component B-1/component B-4) of 10/90 to 90/10, and (iii) shows a proportion of melt peaks at 195&#xb0; C. or higher to all melt peaks in a temperature rising process in measurement by a differential scanning calorimeter (DSC) of at least 20%; a molded article of the resin composition; and methods for producing the resin composition and the molded article.

Resin composition, molded article, and production methods thereof

An object of the present invention is to provide a fiber made of polylactic acid and having excellent strength, heat resistance and heat shrinkage resistance and a manufacturing method thereof. The present invention relates to the fiber is made of a composition which includes (i) poly(L-lactic acid) having a weight average molecular weight of 50,000 to 300,000 (component A), (ii) poly(D-lactic acid) having a weight average molecular weight of 50,000 to 300,000 (component B) and (iii) 0.01 to 5 parts by weight of a phosphate metal salt (component C) based on 100 parts by weight of the total of the components A and B and has a strength of 2.5 to 10 cN/dTex and a manufacturing method thereof.

Polylactic acid fiber and manufacturing method thereof

It is an object of the present invention to provide a polylactic acid composition having excellent crystallinity, wet heat stability and melt stability. It is another object of the present invention to provide a molded article which is obtained from the polylactic acid composition and excellent in appearance and color. The present invention is a composition and molded article thereof which comprises a polylactic acid (component A), a carbodiimide compound (component B) and a phosphoric acid ester metal salt (component C).

Polylactic acid composition

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Iwakuni, Japan

Takaaki Matsuda