Soluble polyarylene ether sulfones

Details Soluble polyarylene ether sulfones Soluble polyarylene ether sulfones

1991-03-06

1992-06-30

Foelak, Morton

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528125, 528126, 528171, 528174, 528175, 528219, 528220, C08G 802

Patent

active

051264277

ABSTRACT:
Polyarylene ether sulfones which have a reduced viscosity of 0.1 to 2.0 dl/g, measured at 25.degree. C. in a 1% solution in N-methylpyrrolidone (NMP), and which contain, based on the total number of structural units present in the polyarylene ether sulfone resin, 99-1 mol % of a recurring structural unit of formula I ##STR1## and 1-99 mol % of a recurring structural unit of formula II

REFERENCES:
patent: 4904754 (1990-02-01), Heinz et al.
patent: 4925910 (1990-05-01), Heinz
Chem. Abst. 96:7266g (1982).

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