Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate
Patent
1994-05-10
1996-05-21
Seidleck, James J.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From phenol, phenol ether, or inorganic phenolate
528196, 528198, 528202, C08G 6400
Patent
active
055191053
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 utilization.
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Boden Eugene P.
Flowers Larry I.
Odle Roy R.
Phelps Peter D.
Ramsey David L.
General Electric Company
Mosley Terressa
Seidleck James J.
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