POLY(VINYL ALCOHOL)-BASED FIBERS HAVING EXCELLENT THERMAL AGING RESISTANCE, AND METHOD FOR PRODUCING SAME

Title:

POLY(VINYL ALCOHOL)-BASED FIBERS HAVING EXCELLENT THERMAL AGING RESISTANCE, AND METHOD FOR PRODUCING SAME

Document Type and Number:

WIPO Patent Application WO/2014/156546

Kind Code:

A1

Abstract:

Provided are poly(vinyl alcohol)-based fibers having excellent thermal aging resistance when used for long periods under high temperature conditions. The poly(vinyl alcohol)-based fibers having excellent thermal aging resistance contain an antioxidant constituted from a water-soluble inorganic or organic salt of at least one type of metal selected from among the group consisting of manganese, copper, iron, nickel, cobalt and zinc, and a boron compound that acts as a chelating agent for the antioxidant, wherein the content of the antioxidant in the fibers is 0.05 mass % or higher and the proportion (in terms of mass %) of the boron compound relative to the antioxidant is 0.5 mass % or higher.

Inventors:

YAMAMOTO RYO (JP)
KOBAYASHI TOSHIAKI (JP)
HAYASHI HIDEO (JP)

Application Number:

PCT/JP2014/055857

Publication Date:

October 02, 2014

Filing Date:

March 06, 2014

Export Citation:

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Assignee:

KURARAY CO (JP)

International Classes:

D01F6/14; D06M11/26; D06M11/13; D06M11/155; D06M11/28; D06M11/80; D06M101/24

Foreign References:

JPS4617598B1	1971-05-15
JPS351669B
JPS457691B
JPS351669B1
JPS457691B1
JPS3822720B1

Other References: