Kao Soap Company, Ltd.

Kao Corporation

Takeshi Hirota

Kenichi Katabe

Shigetoshi Suzue

Hiroyoshi Hiramatsu

Nobuyuki Suzuki

Kiyoaki Yoshikawa

Koji Kishimoto

Shigeki Oshiyama

Osamu Wakasugi

Disclosed herein is a fiber treating process which comprises treating fibers. An ester formed by the union of an polybasic carboxylic acid and a compound represented by the formula below ##STR1## where R.sub.1 and R.sub.2 represent C.sub.4 -C.sub.18 alkyl groups; AO represents a C.sub.2 -C.sub.4 alkyleneoxide group; and n represents an integer of 0 to 30.

Fiber treating process and composition used therefor

Synthetic fibers are treated for the purpose of lubrication with a compound of the formula: ##STR1## wherein R.sub.1 is hydrogen or phenyl, R.sub.2 is an alkylene group having 1 to 3 carbon atoms, R.sub.3 is an alkylene group having 2 to 4 carbon atoms or a mixed alkylene group thereof, R.sub.4 is hydrogen, an acyl having 1 to 18 carbon atoms or alkyl group having 1 to 18 carbon atoms, p is a number of from 2 to 5 and n is a number of from 1 to 50.

Lubricant compositions for synthetic fibers and method for lubricating

A composition for lubricating synthetic fibers, which comprises

Composition for lubricating treatment of synthetic fibers

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Wakayama, Japan

Takeshi Hirota