1
Kwan Yue A Jen, Terence Moran: Melt transesterification process for the production of polycarbonates. Instituto Guido Donegani, Enichem America, Oblon Spivak McClelland Maier & Neustadt, June 22, 1993: US05221761 (14 worldwide citation)

A melt transesterification process for the production of polycarbonates, wherein at least one bis(aryl)carbonate is reacted with at least one dihydric phenol in the melted state, in the presence of a transesterification catalyst comprising at least one heterocyclic borate salt of the formula:


2
Jen Kwan Yue Alex, Moran Terence: Melt transesterification process for the production of polycarbonates.. Enichem, November 3, 1993: EP0568151-A2 (4 worldwide citation)

A melt transesterification process for the production of polycarbonates, wherein at least one bis(aryl)carbonate is reacted with at least one dihydric phenol in the melted state, in the presence of a transesterification catalyst comprising at least one heterocyclic borate salt of the formula: MB(R)n ...


3
Thomas König, Michael Bierdel, Carsten Conzen, Ulrich Liesenfelder, Klemens Kohlgrüber, Reiner Rudolf, Johann Rechner: Method for extruding plastic masses. Covestro Deutschland, K&L Gates, August 22, 2017: US09738025

The invention relates to a process for extruding plastic compositions. The process in particular relates to the conveying, kneading and/or mixing of plastic compositions, in particular of polymer melts and mixtures of polymer melts, above all thermoplastics and elastomers, particularly preferably po ...


4
Kratschmer Silke, Hucks Uwe, Bunzel Lothar: Process for the production of modified polycarbonates. Bayer Aktiengesellschaft, November 21, 2007: TWI290152

The invention comprises a melt transesterification process for the production of polycarbonates. Process for the production of polycarbonates from bisphenols, preferably from bisphenol A, and carbonic acid diesters, in the presence of an alkyl group-substituted phenol as a chain terminator, wherein ...