Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate
Patent
1992-01-09
1993-12-14
Kight, III, John
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From phenol, phenol ether, or inorganic phenolate
528125, 528174, 528219, C08G 7500, C08G 6538
Patent
active
052704351
ABSTRACT:
Polyarylene ethers which, based on the total amount of the structural units present in the polyether resin, contain 2-100 mol % of a recurring structural unit of formula I ##STR1## and 0-98 mol % of a recurring structural unit of formula II wherein each a is 1 or 2, 10 to 100% of X, based on the total number of the bonds X present in the structural units of formulae I and II, are --SO.sub.2 --, and 0 to 90% of X are --CO--, and A is a group of formula IIIa-IIIg: ##STR2## wherein Y is --CH.sub.2 --, --C(CH.sub.3).sub.2 --, --C(CF.sub.3).sub.2 --, --S--, --SO--, --SO.sub.2 --, --O-- or --CO--, and the aromatic rings in the structural units of formulae I and II are unsubstituted or substituted by one or more alkyl groups of 1 to 4 carbon atoms, have good solubility in organic solvents and are suitable preferably for modifying other plastics materials or for use as matrix resins for the production of fibrous composite structures.
REFERENCES:
patent: 3264536 (1966-08-01), Robinson et al.
patent: 3524833 (1970-08-01), Darms
patent: 3875103 (1975-04-01), Leslie
patent: 4730018 (1988-03-01), Rabeson
Derwent Abst. 87-224374.
J. of Polymer Science, Part a-1, vol. 5, pp. 2374-2398 (1967).
Hoffmann Kurt
Kainmuller Thomas
Kramer Andreas
Pfaendner Rudolf
Stockinger Friedrich
Ciba-Geigy Corporation
Kight III John
Mosley T.
Teoli, Jr. William A.
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