Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate
Patent
1990-03-13
1993-05-18
Kight, III, John
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From phenol, phenol ether, or inorganic phenolate
528125, 528126, 528128, 528174, 528175, 528219, 528220, 528226, 528391, 525390, 525534, C08G 7523, C08G 802, C08G 1400, C08G 6538
Patent
active
052122786
ABSTRACT:
The invention relates to polyarylene ethers which contain, based on the total amount of structural elements present in the polyether resin, 5-100 mol % of a recurring structural element of the formula I ##STR1## and 0-95 mol % of a recurring structural element of the formula II ##STR2## in which X and X' independently of one another are --SO--, --SO.sub.2 -- or --CO--, one of the radicals R.sub.1, R.sub.2, R.sub.3 and R.sub.4 is phenyl or phenyl which is substituted by one to three (C.sub.1 -C.sub.4)alkyl groups and the remaining radicals R.sub.1, R.sub.2, R.sub.3 and R.sub.4 independently of one another are hydrogen, (C.sub.1 -C.sub.4)alkyl, phenyl or phenyl which is substituted by one to three (C.sub.1 -C.sub.4)alkyl groups, and A is an aromatic radical, at least 25% of the bonds X and/or Y and/or the bridge members contained in A being --SO.sub.2 --.
These industrial materials are distinguished by very good mechanical properties and good solubility.
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Hoffmann Kurt
Kainmuller Thomas
Kramer Andreas
Pfaendner Rudolf
Stockinger Friedrich
Ciba-Geigy Corporation
Hall Luther A. R.
Hampton-Hightower P.
Kight III John
Teoli, Jr. William A.
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