JPS6466236A - Aliphatic polycarbonate and production thereof - Google Patents
Aliphatic polycarbonate and production thereofInfo
- Publication number
- JPS6466236A JPS6466236A JP62222964A JP22296487A JPS6466236A JP S6466236 A JPS6466236 A JP S6466236A JP 62222964 A JP62222964 A JP 62222964A JP 22296487 A JP22296487 A JP 22296487A JP S6466236 A JPS6466236 A JP S6466236A
- Authority
- JP
- Japan
- Prior art keywords
- hydroxycyclohexyl
- propane
- bis
- bischloroformate
- 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.)
- Pending
Links
Landscapes
- Polyesters Or Polycarbonates (AREA)
- Optical Record Carriers And Manufacture Thereof (AREA)
Abstract
PURPOSE:To obtain a transparent polymer having high heat resistance and hardness and low water absorption photoelasticity constant, by polycondensing bischloroformate of bis(hydroxycyclohexyl)propane with bis(hydroxycyclohexyl) propane. CONSTITUTION:Bischloroformate (preferably of >=95% purity) of 2,2-bis(4- hydroxycyclohexyl)propane and 2,2-bis(4-hydroxycyclohexyl)propane are polycondensed in the presence of an acid binder (preferably pyridine, quinoline, etc.) in an inert solvent at -10-+30 deg.C to afford the aimed polycarbonate having constituent units expressed by the formula and 0.3-1.0dl/g reduced viscosity [etaSP] measured by using a solution thereof in 0.2g/dl concentration in methylene chloride as a solvent at 20 deg.C.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62222964A JPS6466236A (en) | 1987-09-08 | 1987-09-08 | Aliphatic polycarbonate and production thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62222964A JPS6466236A (en) | 1987-09-08 | 1987-09-08 | Aliphatic polycarbonate and production thereof |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6466236A true JPS6466236A (en) | 1989-03-13 |
Family
ID=16790643
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62222964A Pending JPS6466236A (en) | 1987-09-08 | 1987-09-08 | Aliphatic polycarbonate and production thereof |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6466236A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003073563A (en) * | 2001-09-04 | 2003-03-12 | Mitsui Chemicals Inc | Thermoplastic material composition, and optical component constituted by including the same |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS48101489A (en) * | 1972-04-05 | 1973-12-20 | ||
JPS51144492A (en) * | 1975-05-27 | 1976-12-11 | Bayer Ag | Method of making apiphatic polycarbonate |
JPS616604A (en) * | 1984-06-21 | 1986-01-13 | Mitsubishi Rayon Co Ltd | Optical transmitting plastic fiber |
JPS61223025A (en) * | 1985-03-29 | 1986-10-03 | Idemitsu Kosan Co Ltd | Material for optical instrument |
JPS62291601A (en) * | 1986-06-11 | 1987-12-18 | Hitachi Ltd | Optical disk |
JPS63122729A (en) * | 1986-11-11 | 1988-05-26 | Daicel Chem Ind Ltd | Polycarbonate resin |
-
1987
- 1987-09-08 JP JP62222964A patent/JPS6466236A/en active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS48101489A (en) * | 1972-04-05 | 1973-12-20 | ||
JPS51144492A (en) * | 1975-05-27 | 1976-12-11 | Bayer Ag | Method of making apiphatic polycarbonate |
JPS616604A (en) * | 1984-06-21 | 1986-01-13 | Mitsubishi Rayon Co Ltd | Optical transmitting plastic fiber |
JPS61223025A (en) * | 1985-03-29 | 1986-10-03 | Idemitsu Kosan Co Ltd | Material for optical instrument |
JPS62291601A (en) * | 1986-06-11 | 1987-12-18 | Hitachi Ltd | Optical disk |
JPS63122729A (en) * | 1986-11-11 | 1988-05-26 | Daicel Chem Ind Ltd | Polycarbonate resin |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003073563A (en) * | 2001-09-04 | 2003-03-12 | Mitsui Chemicals Inc | Thermoplastic material composition, and optical component constituted by including the same |
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