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1. (WO2013147141) GRANULAR POLYARYLENE SULFIDE AND PROCESS FOR MANUFACTURING SAME

Pub. No.:    WO/2013/147141    International Application No.:    PCT/JP2013/059497
Publication Date: Fri Oct 04 01:59:59 CEST 2013 International Filing Date: Sat Mar 30 00:59:59 CET 2013
IPC: C08G 75/02
C08J 3/12
Applicants: KUREHA CORPORATION
株式会社クレハ
Inventors: KONNO Akihiro
昆野明寛
TAKAKI Ken-ichi
高木健一
YOSHIDA Yui
吉田唯
SUZUKI Yasuhiro
鈴木康弘
Title: GRANULAR POLYARYLENE SULFIDE AND PROCESS FOR MANUFACTURING SAME
Abstract:
A granular polyarylene sulfide such that: (i) the granular polyarylene sulfide has an -S- substituent at the end, said substituent being formed by cleavage of a disulfide compound; (ii) the granular polyarylene sulfide is an oversize fraction obtained by screening with a screen having an opening of 38μm or more; (iii) the granular polyarylene sulfide has a halogen content of 1,500ppm or less; and (iv) the granular polyarylene sulfide exhibits a melt viscosity of 3 to 100Pa·s as determined under the conditions of 310°C and a shear rate of 1,200sec-1. The granular polyarylene sulfide is well balanced among melt viscosity, halogen content, nitrogen content, thermal stability and yield.