Nippon Chemical Industrial Co., Ltd.

Koizumi Chemical Co., Ltd.

Chiyoda Shoji Co., Ltd.

Seiko Epson Corporation

Nippon Chemical Industrial

Seiji Shimura

Masashi Sugiya

Akira Saito

Tsutomu Watanabe

Takao Mogami

Yoshifusa Hara

Tadao Kojima

Yoshiko Inaba

Kazukichi Hashimoto

Kunio Kako

Katsuhiko Komori

Yoichi Ushiyama

A treating agent for cellulosic textile materials includes a water-soluble phosphonium salt of phosphorus-containing oxoacid and polycarboxylic acid as active ingredients, and a process of treating cellulosic textile materials uses the treating agent. The treating agent eliminates the necessity of the use of a substance releasing formaldehyde during wash and wear treatment and enables non-formaldehyde wash and wear treatment, and the cellulosic textile material treated by the treating agent is completely free from formaldehyde, retains enough of the strength thereof, and undergoes neither discoloration nor fibrillation.

Treating agent for cellulosic textile material and process for treating

A bifunctional alkyl phosphine oxide which is represented by the following general formula (1), ##STR1## wherein R.sup.1 represents tert-butyl or 1,1,3,3-tetramethylbutyl, and a production method thereof. This organophosphorus compound is useful a wide variety of fields including a flame retardant, antistatic additive, antibacterial agent, dyeing-improving agent, resin modifier, stain-proofing agent, and rust preventives. This compound can be produced industrially advantageously.

Bifunctional alkyl phosphine oxide and production method thereof

A monoalkylphosphine represented by the following formula (1): ##STR1## wherein m indicates 1 or 2, and n indicates an integer of 0 to 2. The monoalkylphosphine can effectively be obtained by reaction between phosphine and an alkene in the presence of an organic solvent and an anhydrous alkanesulfonic acid catalyst.

Monoalkylphosphine and method of producing the same

Antimicrobial polymer, contact lens and contact lens-care articles

Agent and method for treating wool fibers wherein the agent is

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Tokyo, Japan

Seiji Shimura