PROCESS FOR THE PRODUCTION OF POLYCARBONATE USING AN ESTER SUBSTITUTED DIARYL CARBONATE

Dennis Willemse; Hatem Belfadhel; Hans-Peter Brack; Vic Fernandez Ignacio; Jorge Garcia Agudo; Joris De Grooth; Gerardo Hidalgo Llinas; Joseph McCloskey Patrick; Louis Obando; Herke Oyevaar Martin; Laurus Van Der Wekke

PROCESS FOR THE PRODUCTION OF POLYCARBONATE USING AN ESTER SUBSTITUTED DIARYL CARBONATE

Dennis Willemse (Inventor), Hatem Belfadhel (Inventor), Hans-Peter Brack (Inventor), Vic Fernandez Ignacio (Inventor), Jorge Garcia Agudo (Inventor), Joris De Grooth (Inventor), Gerardo Hidalgo Llinas (Inventor), Joseph McCloskey Patrick (Inventor), Louis Obando (Inventor), Herke Oyevaar Martin (Inventor), Laurus Van Der Wekke (Inventor)

Membrane Science and Technology

Research output: Patent

Abstract

A method of preparing polycarbonate includes a steps of providing a melt reaction mixture and allowing the melt reaction mixture to react to build molecular weight, thereby preparing the polycarbonate. The melt reaction mixture has a dihydroxy compound, an ester substituted diaryl carbonate mixture, and a melt transesterification catalyst where the ester substituted diaryl carbonate mixture may contain acid-substituted phenol. The method also includes the step of adjusting the molar ratio of acid-substituted phenol, if present, to melt transesterification catalyst (acid-substituted phenol/catalyst) in the melt reaction mixture to an amount of less than 10.

Original language	English
Patent number	US2008287640
IPC	C08G 64/ 30 A I
Priority date	15/05/07
Publication status	Published - 20 Nov 2008

Cite this

@misc{895e5f4863304175a8f1fea2e711c781,

title = "PROCESS FOR THE PRODUCTION OF POLYCARBONATE USING AN ESTER SUBSTITUTED DIARYL CARBONATE",

abstract = "A method of preparing polycarbonate includes a steps of providing a melt reaction mixture and allowing the melt reaction mixture to react to build molecular weight, thereby preparing the polycarbonate. The melt reaction mixture has a dihydroxy compound, an ester substituted diaryl carbonate mixture, and a melt transesterification catalyst where the ester substituted diaryl carbonate mixture may contain acid-substituted phenol. The method also includes the step of adjusting the molar ratio of acid-substituted phenol, if present, to melt transesterification catalyst (acid-substituted phenol/catalyst) in the melt reaction mixture to an amount of less than 10.",

author = "Dennis Willemse and Hatem Belfadhel and Hans-Peter Brack and \{Fernandez Ignacio\}, Vic and \{Garcia Agudo\}, Jorge and \{De Grooth\}, Joris and \{Hidalgo Llinas\}, Gerardo and \{McCloskey Patrick\}, Joseph and Louis Obando and \{Oyevaar Martin\}, Herke and \{Van Der Wekke\}, Laurus",

year = "2008",

month = nov,

day = "20",

language = "English",

type = "Patent",

note = "US2008287640; C08G 64/ 30 A I",

}

TY - PAT

T1 - PROCESS FOR THE PRODUCTION OF POLYCARBONATE USING AN ESTER SUBSTITUTED DIARYL CARBONATE

AU - Willemse, Dennis

AU - Belfadhel, Hatem

AU - Brack, Hans-Peter

AU - Fernandez Ignacio, Vic

AU - Garcia Agudo, Jorge

AU - De Grooth, Joris

AU - Hidalgo Llinas, Gerardo

AU - McCloskey Patrick, Joseph

AU - Obando, Louis

AU - Oyevaar Martin, Herke

AU - Van Der Wekke, Laurus

PY - 2008/11/20

Y1 - 2008/11/20

N2 - A method of preparing polycarbonate includes a steps of providing a melt reaction mixture and allowing the melt reaction mixture to react to build molecular weight, thereby preparing the polycarbonate. The melt reaction mixture has a dihydroxy compound, an ester substituted diaryl carbonate mixture, and a melt transesterification catalyst where the ester substituted diaryl carbonate mixture may contain acid-substituted phenol. The method also includes the step of adjusting the molar ratio of acid-substituted phenol, if present, to melt transesterification catalyst (acid-substituted phenol/catalyst) in the melt reaction mixture to an amount of less than 10.

AB - A method of preparing polycarbonate includes a steps of providing a melt reaction mixture and allowing the melt reaction mixture to react to build molecular weight, thereby preparing the polycarbonate. The melt reaction mixture has a dihydroxy compound, an ester substituted diaryl carbonate mixture, and a melt transesterification catalyst where the ester substituted diaryl carbonate mixture may contain acid-substituted phenol. The method also includes the step of adjusting the molar ratio of acid-substituted phenol, if present, to melt transesterification catalyst (acid-substituted phenol/catalyst) in the melt reaction mixture to an amount of less than 10.

M3 - Patent

M1 - US2008287640

ER -

PROCESS FOR THE PRODUCTION OF POLYCARBONATE USING AN ESTER SUBSTITUTED DIARYL CARBONATE

Abstract

Fingerprint

Cite this