Polyarylene sulfide resin
AssigneeNippon Steel Chemical Co., Ltd.
InventorsKazuto Shiraishi, Toshihiro Yamamoto
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Abstract
This invention relates to a novel polyarylene sulfide resin or a resin composition comprising said polyarylene sulfide resin moldable with reduced generation of flash. The polyarylene sulfide resin of this invention comprises 0.5-10% by weight of the constituent unit represented by the following general formula (1) and 80-99.5% by weight of the constituent unit represented by the following general formula (2): —(Ar1—S—)n (1) —(Ar2—S—)m (2) wherein Ar1 is the radical represented by general formula (3), Ar2 is phenylene or alkyl-substituted phenylene radical, R1-R7 are independently hydrogen atoms or lower alkyl radicals containing 1-3 carbon atoms and n and m are integers of 1 or more.
Claims4
A polyarylene sulfide resin comprising 0.5-10% by weight of the constituent unit represented by the following general formula (1) and 80-99.5% by weight of the constituent unit represented by the following general formula (2):
- —(Ar1—S—)n (1)
- —(Ar2—S—)m (2)
- wherein Ar1 is the radical represented by general formula (3),
- Ar2 is phenylene or alkyl-substituted phenylene radical, R1-R7 are independently hydrogen atoms or lower alkyl radicals containing 1-3 carbon atoms and n and m are integers of 1 or more.
A process for preparing a polyarylene sulfide resin which comprises polymerizing polychloro aromatic compounds comprising 0.5-10% by weight of a arylenedichloride represented by the following general formula (4) and 80-99.5% by weight of a dichlorobenzene represented by the following general formula (5) in the presence of, an alkali metal sulfide, Cl—Ar2—Cl (5)
- wherein R1-R7 are independently hydrogen atoms or lower alkyl radicals containing 1-3 carbon atoms and Ar2 is phenylene or alkyl-substituted phenylene radical.
Dependencies are inferred from the claim text.