Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate
Patent
1990-01-18
1992-11-17
Bleutge, John C.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From phenol, phenol ether, or inorganic phenolate
528 99, 528104, 428 366, 428413, C08G 5906
Patent
active
051644720
ABSTRACT:
Polyethers having improved barrier to oxygen are normally solid, thermoplastic polyethers having backbone repeating units of m-phenylene, p-phenylene, carbonyldiphenylene and/or sulfonyldiphenyl and pendent hydroxyl moieties. Such polyethers are prepared by reacting diglycidyl ethers of dihydric aromatic compounds such as the diglycidyl ether of bisphenol A with resorcinol.
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Ringer James W.
White Jerry E.
Bleutge John C.
Krass Frederick
The Dow Chemical Company
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