Toyo Boseki Kabushiki Kaisha

Futoshi Ishimaru

Kota Kitamura

Chikara Sugitawa

Osamu Imagawa

Chihiro Oshimo

Satoshi Nakamura

Genei Matsukawa

A hindered amine compound having thesolubility in an acidic solution of 5.0&times;10 eq./liter or less comprising at least two specific organic groups in a specific weight ratio in a molecule, or at least two specific monomeric units, which can be used as a stabilizer of a resin.

Hindered amine compound, resin composition, polyurethane fiber and production method and use thereof

A thermoplastic polyurethane composition of the present invention includes a thermoplastic polyurethane obtained by reacting at least the following components A, B, and C: (A) a polyester polyol having a number average age molecular weight of 500 to 5000, containing an acid component including aromatic dicarboxylic acid and aliphatic dicarboxylic acid, the molar ratio of the aromatic dicarboxylic acid to the aliphatic dicarboxylic acid being 5:95 to 90:10; (B) a low molecular weight diol having a molecular weight of less than 500; and (C) an organic diisocyanate, wherein the thermoplastic polyurethane has a metal sulfonate group of 10 to 1000 equivalents/10.sup.6 g of the polyurethane and a urethane group of 1200 to 3000 equivalents/10.sup.6 g of the polyurethane.

Thermoplastic polyurethane

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Otsu, Japan

Futoshi Ishimaru