Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Organic compound containing
Patent
1996-02-08
1998-09-08
Wood, Elizabeth D.
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Organic compound containing
502164, 502167, 502200, B01J 3100
Patent
active
058045252
ABSTRACT:
A composition and method is provided for making polycarbonate utilizing an effective amount of a binary catalyst system, comprising a phase transfer catalyst and a tertiary organic amine, as a condensation catalyst during the interfacial phosgenation of a bisphenol, such as bisphenol A. for improved phosgene utiliziation.
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Boden Eugene P.
Flowers Larry I.
Odle Roy R.
Phelps Peter D.
Ramsey David L.
General Electric Company
Wood Elizabeth D.
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