JPS6424830A - Production of polycarbonate diol - Google Patents
Production of polycarbonate diolInfo
- Publication number
- JPS6424830A JPS6424830A JP62180100A JP18010087A JPS6424830A JP S6424830 A JPS6424830 A JP S6424830A JP 62180100 A JP62180100 A JP 62180100A JP 18010087 A JP18010087 A JP 18010087A JP S6424830 A JPS6424830 A JP S6424830A
- Authority
- JP
- Japan
- Prior art keywords
- polycarbonate diol
- heating
- water
- production
- reactivity
- 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
- Polyurethanes Or Polyureas (AREA)
- Paints Or Removers (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Polyesters Or Polycarbonates (AREA)
Abstract
PURPOSE:To obtain efficiently and easily in good reproducibility a polycarbonate diol free of degradation of quality due to additives, not limited in its use and having a desired reactivity in urethane formation, by heating a polycarbonate diol in the presence of water. CONSTITUTION:The reactivity in the urethane formation of a polycarbonate diol is decreased by heating it in the presence of water. The water present during the heating can be supplied by directly adding water to the polycarbonate diol to be produced or by blowing nitrogen, air or the like containing water into it, and it can be sufficiently fed simply by performing said heating in open air. The amount of the water to be added is preferably 0.01-5pts.wt. per 100pts. wt. polycarbonate diol. The heating temperature and heating time are preferably about 100-140 deg.C and 2-16hr, respectively.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62180100A JPH0653794B2 (en) | 1987-07-21 | 1987-07-21 | Urethane-forming reactivity reduction treatment method of polycarbonate diol |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62180100A JPH0653794B2 (en) | 1987-07-21 | 1987-07-21 | Urethane-forming reactivity reduction treatment method of polycarbonate diol |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6424830A true JPS6424830A (en) | 1989-01-26 |
JPH0653794B2 JPH0653794B2 (en) | 1994-07-20 |
Family
ID=16077429
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62180100A Expired - Fee Related JPH0653794B2 (en) | 1987-07-21 | 1987-07-21 | Urethane-forming reactivity reduction treatment method of polycarbonate diol |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0653794B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5494010A (en) * | 1993-12-24 | 1996-02-27 | Nippondenso Co., Ltd. | Magnet switch and a starter using same |
CN1091790C (en) * | 1995-03-15 | 2002-10-02 | 日东电工株式会社 | Pressure-sensitive adhesive composition and pressure-sensitive adhesive sheets made therefrom, and sealants, reinforcing sheets and pressure-sensitive adhesive sheets for printing produced therefrom |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5342359A (en) * | 1976-09-29 | 1978-04-17 | Nippon Telegraph & Telephone | Variable inductance coil for high frequency use |
JPS5565205A (en) * | 1978-11-03 | 1980-05-16 | Stauffer Chemical Co | Recovery of polymer |
JPS6126571A (en) * | 1984-07-13 | 1986-02-05 | 三菱マテリアル株式会社 | Manufacture of aluminum oxide block |
JPS61250026A (en) * | 1985-04-27 | 1986-11-07 | Mitsubishi Gas Chem Co Inc | Production of water slurry of bead-like polycarbonate solid particles |
-
1987
- 1987-07-21 JP JP62180100A patent/JPH0653794B2/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5342359A (en) * | 1976-09-29 | 1978-04-17 | Nippon Telegraph & Telephone | Variable inductance coil for high frequency use |
JPS5565205A (en) * | 1978-11-03 | 1980-05-16 | Stauffer Chemical Co | Recovery of polymer |
JPS6126571A (en) * | 1984-07-13 | 1986-02-05 | 三菱マテリアル株式会社 | Manufacture of aluminum oxide block |
JPS61250026A (en) * | 1985-04-27 | 1986-11-07 | Mitsubishi Gas Chem Co Inc | Production of water slurry of bead-like polycarbonate solid particles |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5494010A (en) * | 1993-12-24 | 1996-02-27 | Nippondenso Co., Ltd. | Magnet switch and a starter using same |
CN1091790C (en) * | 1995-03-15 | 2002-10-02 | 日东电工株式会社 | Pressure-sensitive adhesive composition and pressure-sensitive adhesive sheets made therefrom, and sealants, reinforcing sheets and pressure-sensitive adhesive sheets for printing produced therefrom |
Also Published As
Publication number | Publication date |
---|---|
JPH0653794B2 (en) | 1994-07-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |