Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate
Patent
1982-04-02
1983-05-31
Lee, Lester L.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From phenol, phenol ether, or inorganic phenolate
528179, 528180, 528181, 528190, C08G 6364
Patent
active
043861962
ABSTRACT:
An interfacial process for producing a poly(ester-carbonate) containing aromatic dihydroxy moieties derived from phenolphthalein. In the process, phenolphthalein polyester oligomers are formed first, and then the oligomers are reacted with phosgene and with additional aromatic or cycloaliphatic diacyl halide and with an aqueous solution of bisphenol-derived salt to form the poly(ester-carbonate).
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Segal Leon
Wu Tse C.
Allied Corporation
Doernberg Alan M.
Fuchs Gerhard H,.
Lee Lester L.
Massengill Roy H.
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