Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate
Patent
1988-11-14
1990-03-13
Nielsen, Earl
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From phenol, phenol ether, or inorganic phenolate
525523, 525502, 528104, 528101, C08G 5962
Patent
active
049084232
ABSTRACT:
The invention relates to compounds of the formula I or II ##STR1## in which A is a radical ##STR2## R.sup.1 is hydrogen or methyl, R.sup.2 is the radical of an aliphatic, cycloaliphatic, aromatic or araliphatic diol after both of the hydroxyl groups have been removed, R.sup.3, R.sup.4, R.sup.5 and R.sup.6 independently of one another are hydrogen, C.sub.1 -C.sub.6 alkyl, chlorine or bromine, R.sup.7 is a radical of the formula III, IV, V or VI ##STR3## R.sup.8, R.sup.10, R.sup.12 and R.sup.14 are hydrogen, C.sub.1 -C.sub.6 alkyl or phenyl, R.sup.9, R.sup.11, R.sup.13 and R.sup.15 are hydrogen or C.sub.1 -C.sub.6 alkyl and the average value of n (number average) is a number from 1 to 20, it being possible for the radicals R.sup.1 to R.sup.15, within a given molecule, to assume different meanings within the scope of the definitions given.
These compounds or also the epoxidized intermediates of the formula X ##STR4## in which R.sup.1 to R.sup.3 are as defined above and R.sup.7 is a radical of the formula IV or VI can be processed to give cured products having a high glass transition temperature and a low tendency to discoloration.
REFERENCES:
patent: 2775620 (1956-12-01), Williamson
patent: 3220977 (1965-11-01), Jackson et al.
patent: 3355414 (1967-11-01), Caldwell et al.
patent: 3446855 (1969-05-01), Jackson et al.
patent: 3517071 (1970-06-01), Caldwell et al.
Monnier Charles E.
Roth Martin
Ciba-Geigy Corporation
Hall Luther A. R.
Nielsen Earl
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