Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From sulfur-containing reactant
Patent
1992-11-17
1994-02-22
Bleutge, John C.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From sulfur-containing reactant
525537, C08G 7514
Patent
active
052888487
ABSTRACT:
The invention relates to a process for the preparation of optionally branched, high molecular weight polyarylene sulphides with melt viscosities which can be established at defined values and low corrosion.
These polyarylene sulphides are obtained by reacting alkali metal sulphides, if appropriate mixed with alkali metal bisulphides and reaction accelerators, with dihalogenoaromatics and, if appropriate, polyhalogenoaromatics, with the addition of particular monohalogenoaromatics as chain stoppers.
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patent: 4537953 (1985-08-01), Kawakami et al.
patent: 4605732 (1986-08-01), Heitz et al.
patent: 4608433 (1986-08-01), Meyer et al.
patent: 4760127 (1988-07-01), Ebert et al.
patent: 4820800 (1989-04-01), Geibel et al.
Bottenbruch Ludwig
Ebert Wolfgang
Freitag Dieter
Idel Karsten
Meyer Rolf-Volker
Bayer Aktiengesellschaft
Bleutge John C.
Lee Helen F.
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