Toray Industries, Inc.

Yoshizo Tsuda

Shunroku Tohyama

Masaharu Shimamura

Tatsuo Nogi

Mitsuhiro Okamoto

Akinori Yamamoto

Tomohiko Asahara

Yasuo Yoshizawa

Nobuo Yoshizumi

Shigemitsu Saito

Keisuke Igawa

Kanzi Kashihara

Takuma Jinda

Satoshi Shinohara

Yuzaburo Nakayama

A flame-retardant fiber is made comprising 20 - 95% by weight of amino resin condensate of an amino compound and formaldehyde in which the amino compound may be a melamine, combined melamine and guanamine, combined melamine and urea, combined melamine, guanamine and urea, and benzoguanamine and/or urea, and in which the chemical bond linking the polymer chain is for the most part methylene linkage and 80 - 5% by weight of polyvinylalcohol, the resulting fiber being cured when necessary and having a tensile strength of at least 1.0 g/d., and having a break elongation of at least 5%.

Flame retardant fiber

High modulus, high tenacity aromatic polyhydrazide fiber composed of

Aromatic polyhydrazide fiber of high modulus and high tenacity

A mixed yarn having a uniform dyeability to an acid dye, which comprises at least two kinds of polyamide filaments differing in shrinkage, each consisting mainly of repeating units represented by the following general formula: ##SPC1##

Mixed yarn

Growing community of inventors

Otsu, Japan

Yoshizo Tsuda