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Title:
POLYKETONE CORD AND METHOD FOR PRODUCING THE SAME
Document Type and Number:
Japanese Patent JP2002339275
Kind Code:
A
Abstract:

To provide a polyketone cord having excellent mechanical characteristics of high strength and high toughness and having excellent dimensional stability under load and under heating and a method for producing the polyketone cord.

This polyketone comprises ≥80 wt.% polyketone fiber composed of polyketone in which 97-100 wt.% of recurring unit is constituted of 1- oxotrimethylene and has characteristics satisfying the following (a) to (e): (a) tensile strength ≥8 cN/dtex; (b) toughness ≥20+14.6×K/104-14.1×(K/104)2+-2.7×(K/104)3 (cN.%/dtex) wherein K is a twist coefficient of cord represented by the formula K=Y×D0.5; (c) intermediate elongation ≤1.5×exp(5.5×K/105) (%); (d) dry heat shrinkage factor = 0-3% and (e) thermal intermediate elongation ≤1.8×exp(5.5×K/105) (%).


Inventors:
TANIGUCHI TATSU
KATO JINICHIRO
Application Number:
JP2001000146079
Publication Date:
November 27, 2002
Filing Date:
May 16, 2001
Export Citation:
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Assignee:
ASAHI KASEI CORP
International Classes:
D07B1/02; B60C9/00; D01F6/76; D02G3/36; D02G3/48; D03D1/00; D03D15/00; D03D15/02; D06M15/693; D06M101/16; (IPC1-7): D07B1/02; B60C9/00; D01F6/76; D02G3/36; D02G3/48; D03D1/00; D03D15/00; D03D15/02; D06M15/693
Attorney, Agent or Firm:
武井 英夫 (外3名)