Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate
Patent
1991-05-03
1992-12-15
Nutter, Nathan M.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From phenol, phenol ether, or inorganic phenolate
528215, 528217, C08G 6544, C08G 6540
Patent
active
051718251
ABSTRACT:
A process for preparing polyphenylene ethers from monohydric phenols which have alkyl substituents in both ortho positions and possibly also in one meta position but not in the para position, by oxidative coupling with oxygen-containing gases in the presence of an oxidation catalyst and of an electrically conducting compound which counteracts the electrostatic charge in the reaction mixture, in organic solution, comprises using as electrically conducting compound a salt of a carboxamide derivative of the formula I ##STR1## or mixtures of such salts, where R.sup.1 is a saturated or singly or multiply unsaturated aliphatic group which can have a terminal phenyl group and which contains a total of 8-30 carbon atoms, it also being possible for these carbon atoms to be interrupted by isolated oxygen atoms,
REFERENCES:
patent: 3306874 (1967-02-01), Hay
patent: 3306875 (1967-02-01), Hay
patent: 3384619 (1968-05-01), Hori et al.
patent: 3432466 (1969-03-01), Hay
patent: 3549670 (1970-12-01), Spousta
patent: 3639656 (1972-02-01), Bennett et al.
patent: 3642699 (1972-02-01), Cooper et al.
patent: 3661848 (1972-05-01), Cooper et al.
patent: 3733299 (1973-05-01), Cooper et al.
patent: 4130504 (1978-12-01), Rutledge
patent: 4503214 (1985-03-01), White et al.
Kirk-Othmer Encyclopedia of Chemical Technology, Second ed., vol. 19, pp. 512-515, 1969.
Czauderna Bernhard
Hedtmann-Rein Carola
Hennig Karl
von Deessen Martina
BASF - Aktiengesellschaft
Mullis Jeffrey Culpepper
Nutter Nathan M.
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