Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate
Patent
1985-10-18
1986-12-30
Nielsen, Earl
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From phenol, phenol ether, or inorganic phenolate
528103, 528398, C08G 5920
Patent
active
046329730
ABSTRACT:
Epoxy resins reacted with an oxirane group containing phosphonate of the formula: ##STR1## wherein R is hydrogen or lower alkyl and R.sub.1 is lower alkyl are described. The backbone of the epoxy resin contains a functional substituent which reacts with (I) preferably a hydroxyl substituent. The cured epoxy resins reacted with the phosphonate (I) have improved flame resistance or glass temperatures.
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Nielsen Earl
Stringham Robert R.
The Dow Chemical Company
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