Title:
POLYCARBONATE MANUFACTURING METHOD AND POLYCARBONATE
Document Type and Number:
WIPO Patent Application WO/2014/171367
Kind Code:
A1
Abstract:
The present invention relates to a polycarbonate manufacturing method comprising process (a) and process (b): (a) a process for obtaining a prepolymer by reacting a specified fluorine-containing carbonate (Compound (1), etc.) with an aromatic dihydroxy compound in the presence of a condensation catalyst; and (b) a process for obtaining the polycarbonate by heating the prepolymer at a temperature less than the melting temperature of said prepolymer and polymerizing said prepolymer in the solid phase while discharging fluorine-containing alcohol byproduct from the system.
Inventors:
SHIROTA NAOKO (JP)
OKAZOE TAKASHI (JP)
KASHIWAGI KIMIAKI (JP)
OKAZOE TAKASHI (JP)
KASHIWAGI KIMIAKI (JP)
Application Number:
PCT/JP2014/060194
Publication Date:
October 23, 2014
Filing Date:
April 08, 2014
Export Citation:
Assignee:
ASAHI GLASS CO LTD (JP)
International Classes:
C08G64/26
Domestic Patent References:
| WO2009123083A1 | 2009-10-08 | |||
| WO2011024732A1 | 2011-03-03 | |||
| WO2011062104A1 | 2011-05-26 | |||
| WO2011062121A1 | 2011-05-26 |
Foreign References:
| JPH0776619A | 1995-03-20 | |||
| JP2005221975A | 2005-08-18 | |||
| JPH01158033A | 1989-06-21 | |||
| JPH02155921A | 1990-06-15 |
Other References:
See also references of EP 2987817A4
Attorney, Agent or Firm:
HAMADA Yuriko et al. (JP)
Yuriko Hamada (JP)
Yuriko Hamada (JP)
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