Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate
Patent
1990-12-12
1992-01-28
Kight, III, John
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From phenol, phenol ether, or inorganic phenolate
528215, 528216, C08G 6522
Patent
active
050845519
ABSTRACT:
The invention provides a process for producing a polyphenylene ether by subjecting a 2,6-dialkyl-4-halophenol to oxygen in the presence of a water-immiscible solvent, an aqueous alkali, a phase transfer agent, and a molecular-weight-controlling amount of an amine having at least one hydrogen on the amine nitrogen. The polyphenylene ether thus produced has improved flow properties, color and odor, and is suitable for polymer blending with styrenic resins.
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Bennett, Jr. James G.
Denniston Mark R.
Shaffer Timothy D.
Coppa Francis T.
Eisele Joseph T.
General Electric Co.
Kight III John
Shelborne Kathryne E.
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