Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate
Patent
1989-06-06
1990-11-27
Anderson, Harold D.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From phenol, phenol ether, or inorganic phenolate
528176, 528179, 528196, 528274, C08G 6381, C08G 6420, C08G 6382
Patent
active
049736523
ABSTRACT:
The invention relates to a process for the production of aromatic polycarbonates, aromatic polyester carbonates and aromatic polyesters by the known two-phase interfacial method which is characterized in that a mixture of aromatic hydrocarbons with alkanes and/or cycloalkanes is used as the organic phase and in that phosphines or phosphine oxides are used as the catalysts.
REFERENCES:
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patent: 3275601 (1966-09-01), Schnell et al.
patent: 3530094 (1970-09-01), Bottenbruch et al.
patent: 4038252 (1977-07-01), Vernaleken et al.
patent: 4334053 (1982-06-01), Freitag et al.
patent: 4631338 (1986-12-01), Meyer et al.
Dhein Rolf
Ebert Wolfgang
Meyer Rolf-Volker
Oels Udo
Anderson Harold D.
Bayer Aktiengesellschaft
Gil Joseph C.
Preis Aron
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