Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate
Patent
1983-07-21
1984-10-16
Nielsen, Earl A.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From phenol, phenol ether, or inorganic phenolate
525507, 528 89, 528108, 528361, 528365, 528374, C08G 5942, C08G 5962, C08G 5968
Patent
active
044776454
ABSTRACT:
Novel advanced epoxy resins are prepared using phosphine or phosphonium salt initiators bearing at least one hydroxyphenyl or thiophenyl groups. These phosphonium salt initiators are novel compositions of matter. The resulting resins contain reduced quantities of extractable phosphorus containing moieties.
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Doorakian George A.
Hanafin Joseph W.
Glenn Michael L.
Nielsen Earl A.
The Dow Chemical Company
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