Chemistry of carbon compounds – Miscellaneous organic carbon compounds
Patent
1974-02-22
1976-11-02
Lee, Lester L.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
C08G 6544
Patent
active
039896714
ABSTRACT:
Polyphenylene oxides, self-condensation products of phenols, are produced through oxidative coupling by employing a novel catalyst system which comprises a copper compound, an iodine compound and tertiary diamine which is capable of forming a stable chelate ring with the copper compound.
According to this invention, copper compounds, which hitherto have been considered to be unsuitable for using with tertiary amines, act with excellent performance as a component of the catalyst.
REFERENCES:
patent: 3306874 (1967-02-01), Hay
patent: 3306875 (1967-02-01), Hay
patent: 3365422 (1968-01-01), Van Dort
patent: 3787358 (1974-01-01), Nishioka et al.
Yudkin et al., Plast. Massy 1968(8), 26-27.
Ito Akira
Sugio Akitoshi
Tomita Tetsuo
Yonemitsu Eiichi
Yoshii Tadashi
Lee Lester L.
Mitsubishi Gas Chemical Company Inc.
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