JPS55142025A - Process of production of polycarbonate - Google Patents
Process of production of polycarbonateInfo
- Publication number
- JPS55142025A JPS55142025A JP5051479A JP5051479A JPS55142025A JP S55142025 A JPS55142025 A JP S55142025A JP 5051479 A JP5051479 A JP 5051479A JP 5051479 A JP5051479 A JP 5051479A JP S55142025 A JPS55142025 A JP S55142025A
- Authority
- JP
- Japan
- Prior art keywords
- ester
- polycarbonate
- acid
- interchange
- production
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Polyesters Or Polycarbonates (AREA)
Abstract
PURPOSE: A specific compound is used as an ester-interchange catalyst to produce discoloration-free polycarbonate using usual equipment made of stainless steel with industrial advantage.
CONSTITUTION: In the production of polycarbonate by the ester-interchange method from (A) a dihydroxyaryl compound such as bisphenol A and (B) a carbonic acid diester such as diphenyl carbonate, (C) an iminocarboxylic acid or its metal salt of the formula (n is 1W3) such as trisodium nitrilotriacetate or ethylenediaminetetra-acetice acid is used as an ester-interchange catalyst, preferably in an amount of 0.001W0.1mol% based on component A. When necessary, additionally, an organic acid salt, inorganic acid salt, oxide, hydroxide, hydride or alcoholate is used in combination bined as a cocatalyst.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5051479A JPS55142025A (en) | 1979-04-24 | 1979-04-24 | Process of production of polycarbonate |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5051479A JPS55142025A (en) | 1979-04-24 | 1979-04-24 | Process of production of polycarbonate |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55142025A true JPS55142025A (en) | 1980-11-06 |
JPS6139972B2 JPS6139972B2 (en) | 1986-09-06 |
Family
ID=12861073
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5051479A Granted JPS55142025A (en) | 1979-04-24 | 1979-04-24 | Process of production of polycarbonate |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55142025A (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58179224A (en) * | 1982-03-18 | 1983-10-20 | Konishiroku Photo Ind Co Ltd | Optical resin composition and optical element |
JPH01272631A (en) * | 1988-04-26 | 1989-10-31 | Daicel Chem Ind Ltd | Production of polycarbonate resin |
JPH03149221A (en) * | 1989-11-06 | 1991-06-25 | Daicel Chem Ind Ltd | Production of polycarbonate |
JPH03203928A (en) * | 1989-12-28 | 1991-09-05 | Nippon G Ii Plast Kk | Production of polycarbonate |
JPH047328A (en) * | 1990-04-25 | 1992-01-10 | Daicel Chem Ind Ltd | Production of polycarbonate |
JPH0733866A (en) * | 1993-07-16 | 1995-02-03 | Mitsubishi Chem Corp | Production of aromatic polycarbonate resin |
US5416186A (en) * | 1993-04-16 | 1995-05-16 | Daicel Chemical Industries, Ltd. | Process for the preparation of (co)polycarbonate |
US5455324A (en) * | 1992-08-26 | 1995-10-03 | Mitsubishi Chemical Corporation | Aromatic polycarbonate resin of improved color |
EP0708129A1 (en) | 1991-05-08 | 1996-04-24 | Daicel Chemical Industries, Ltd. | Process for producing polycarbonate |
US5519106A (en) * | 1992-08-26 | 1996-05-21 | Mitsubishi Chemical Corporation | Process for the preparation of aromatic polycarbonate resins |
-
1979
- 1979-04-24 JP JP5051479A patent/JPS55142025A/en active Granted
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58179224A (en) * | 1982-03-18 | 1983-10-20 | Konishiroku Photo Ind Co Ltd | Optical resin composition and optical element |
JPH01272631A (en) * | 1988-04-26 | 1989-10-31 | Daicel Chem Ind Ltd | Production of polycarbonate resin |
JPH03149221A (en) * | 1989-11-06 | 1991-06-25 | Daicel Chem Ind Ltd | Production of polycarbonate |
JPH03203928A (en) * | 1989-12-28 | 1991-09-05 | Nippon G Ii Plast Kk | Production of polycarbonate |
JPH047328A (en) * | 1990-04-25 | 1992-01-10 | Daicel Chem Ind Ltd | Production of polycarbonate |
EP0708129A1 (en) | 1991-05-08 | 1996-04-24 | Daicel Chemical Industries, Ltd. | Process for producing polycarbonate |
US5455324A (en) * | 1992-08-26 | 1995-10-03 | Mitsubishi Chemical Corporation | Aromatic polycarbonate resin of improved color |
US5519106A (en) * | 1992-08-26 | 1996-05-21 | Mitsubishi Chemical Corporation | Process for the preparation of aromatic polycarbonate resins |
US5416186A (en) * | 1993-04-16 | 1995-05-16 | Daicel Chemical Industries, Ltd. | Process for the preparation of (co)polycarbonate |
US5498688A (en) * | 1993-04-16 | 1996-03-12 | Daicel Chemical Industries, Ltd. | Two-step process for the preparation of a (co)polycarbonate by transesterification |
JPH0733866A (en) * | 1993-07-16 | 1995-02-03 | Mitsubishi Chem Corp | Production of aromatic polycarbonate resin |
Also Published As
Publication number | Publication date |
---|---|
JPS6139972B2 (en) | 1986-09-06 |
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