Kuraray Co., Ltd.

Akihiro Uehata

Satoshi Koizumi

Yosuke Washitake

Ryokei Endo

Tetsuya Okamoto

Masao Kawamoto

Satoshi Katsuya

Takayuki Ikeda

Yukie Hashimoto

Yuji Ogino

Youichi Yamamoto

Hayato Hohman

Yukie Sugihara

Mariko Mine

Tetsuya Tomosugi

A fiber including olefin-based resin, wherein temperatures of the olefin-based resin losing five percent by weight and the fiber losing five percent by weight have a difference of 20 degrees Celsius or below according to thermogravimetric measurements.

Low leachable fibers and fiber structure

The problem to be solved by the present invention is to provide a polyester binder fiber having a low crystallization temperature and exhibiting improved adhesiveness and a fiber structure including the polyester binder fiber. The polyester binder fiber according to the present invention includes a polyester polymer and an amorphous polyether imide polymer in a proportion of 0.1 to 5.0 mass % (based on the mass of the polyester polymer), and the polyester binder fiber has a crystallization temperature measured by differential calorimetry in a range of 100&#xb0; C. or higher and 250&#xb0; C. or lower.

Polyester binder fiber

Provided is a polyetherimide-based fiber containing a polyetherimide resin and carbon black dispersed in the resin, wherein the content of the carbon black is 0.03 wt % or greater; the carbon black has a primary particle number-mean particle size of from 30 nm to 500 nm; and the fiber has a weight reduction rate of less than 0.5% around the glass transition point (Tg) of the polyetherimide resin, where the weight reduction rate is defined by a following formula (1).Weight reduction rate (%)={[(fiber weight at temperature1)&#x2212;(fiber weight at temperature2)]/(fiber weight at temperature1)}&#xd7;100&#x2003;&#x2003;(1) Where T1 denotes a temperature (Tg&#x2212;15&#xb0; C.) that is 15&#xb0; C. lower than the glass transition point (glass transition temperature) of the polyetherimide resin, and T2 denotes a temperature (Tg+25&#xb0; C.) that is 25&#xb0; C. higher than the glass transition point.

Polyetherimide-based fiber, method for manufacturing same, and fiber structure containing same

Provided is a flame-retardant fiber having improved light resistance and/or colorability. The flame-retardant fiber is a fiber including a fiber-forming polymer. The fiber-forming polymer contains a polymer blend comprising a polyetherimide polymer (A) and a thermoplastic polymer (B) having a glass transition temperature lower than that of the polymer (A); and the fiber-forming polymer further contains a functional additive (C) that provides light resistance, colorability, or both of light resistance and colorability. The mass ratio (A)/(B) of the polymer (A) to the polymer (B) is from 50/50 to 90/10, and the content of the functional additive (C) is from 0.5 to 10% by mass relative to 100% by mass of the total mass (A+B+C) of the polymer (A), the thermoplastic polymer (B), and the functional additive (C).

Flame-retardant fiber, method for producing same, fabric using flame-retardant fiber, and resin composite material using flame-retardant fiber

Provided are an amorphous polyetherimide fiber having not only a small single fiber fineness suitable for producing fabrics, and a fabric comprising the amorphous polyetherimide fiber. The fiber comprises an amorphous polyetherimide polymer having a molecular weight distribution (Mw/Mn) of less than 2.5, and having a shrinkage percentage under dry heat at 200&#xb0; C. of 5% or less, and a single fiber fineness of 3.0 dtex or less. The fiber may have a tenacity at room temperature of 2.0 cN/dtex or greater.

Amorphous polyetherimide fiber and heat-resistant fabric

Method of producing an amorphous polyetherimide fiber and heat-resistant fabric

Provided are an organopolysiloxane composition for producing a rope structure excellent in fatigue resistance, a rope structure using the same, and a process for producing the rope structure. The organopolysiloxane composition comprises an organopolysiloxane having an average polymerization degree of 50,000 to 200,000 and represented by the following formula (I): 

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Kurashiki, Japan

Akihiro Uehata