Title:
POLYPHENYLENE SULFIDE RESIN, PROCESS FOR PRODUCING THE SAME, AND FIBER COMPRISING THE SAME
Document Type and Number:
WIPO Patent Application WO/2006/059509
Kind Code:
A1
Abstract:
A polyphenylene sulfide resin which comprises one having undergone a thermal oxidization treatment and satisfies the following. When the resin is melted in vacuum by heating at 320°C for 2 hours, the amount of gases volatilizing during this heating is 0.23 wt.% or smaller. When the resin is dissolved in a 20-fold amount by weight of 1-chloronaphthalene at 250°C for 5 minutes and this hot solution is filtered under pressure through a PTFE membrane filter having a pore size of 1 µm, then the amount of the residue is 3.0 wt.% or smaller. The resin has a melt flow rate (in accordance with ASTM D-1238-70; temperature, 315.5°C; load, 5,000 g) of 100-500 g/10 min, excluding 100 g/10 min.
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Inventors:
SAITOH KEI (JP)
ISHIO ATSUSHI (JP)
UNOHARA TAKESHI (JP)
ISHIO ATSUSHI (JP)
UNOHARA TAKESHI (JP)
Application Number:
PCT/JP2005/021427
Publication Date:
June 08, 2006
Filing Date:
November 22, 2005
Export Citation:
Assignee:
TORAY INDUSTRIES (JP)
SAITOH KEI (JP)
ISHIO ATSUSHI (JP)
UNOHARA TAKESHI (JP)
SAITOH KEI (JP)
ISHIO ATSUSHI (JP)
UNOHARA TAKESHI (JP)
International Classes:
C08G75/0281; C08G75/02; C08G81/02; C08J3/12; D01F6/76
Foreign References:
| JP2005232254A | 2005-09-02 | |||
| JP2002038332A | 2002-02-06 | |||
| JP2001262436A | 2001-09-26 | |||
| JPH07233256A | 1995-09-05 |
Attorney, Agent or Firm:
Iwami, Tomonori c/o Intellectual Property Department (TORAY INDUSTRIES, INC.,, 1-1, Sonoyama
1-chome,, Otsu-sh, Shiga 58, JP)
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