JPS64118A - Production of polycarbonate-polyol - Google Patents
Production of polycarbonate-polyolInfo
- Publication number
- JPS64118A JPS64118A JP62155040A JP15504087A JPS64118A JP S64118 A JPS64118 A JP S64118A JP 62155040 A JP62155040 A JP 62155040A JP 15504087 A JP15504087 A JP 15504087A JP S64118 A JPS64118 A JP S64118A
- Authority
- JP
- Japan
- Prior art keywords
- polyol
- carbonate
- polycarbonate
- dialkyl
- specified amount
- 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)
- Polyurethanes Or Polyureas (AREA)
Abstract
PURPOSE: To obtain a high-quality polycarbonate-polyol in high yields, by transesterifying a specified amount of a dialkyl or diaryl carbonate with a specified amount of a polyhydroxy compound in the presence of a specified amount of a titanium catalyst.
CONSTITUTION: The production of a polycarbonate-polyol by reacting a dialkyl carbonate or diaryl carbonate with a polyhydroxy compound in the presence of a titanium catalyst is performed with a ratio of said polyhydroxyl compound to said dialkyl carbonate or said diaryl carbonate being 1.0W1.30 times as high as the stoichiometric one in the presence of 0.0005W0.05wt.%, based on said dialkyl carbonate or said diaryl carbonate, said titanium catalyst. By reacting the polyacrbonate-polyol thus produced with a diisocyanate, a polyurethane resin markedly excellent in wet heat resistance and hydrolysis resistance can be obtained.
COPYRIGHT: (C)1989,JPO&Japio
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62155040A JP2570300B2 (en) | 1987-06-22 | 1987-06-22 | Method for producing polycarbonate polyol |
US07/209,575 US4891421A (en) | 1987-06-22 | 1988-06-22 | Processes for producing polycarbonate polyols |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62155040A JP2570300B2 (en) | 1987-06-22 | 1987-06-22 | Method for producing polycarbonate polyol |
Publications (3)
Publication Number | Publication Date |
---|---|
JPS64118A true JPS64118A (en) | 1989-01-05 |
JPH01118A JPH01118A (en) | 1989-01-05 |
JP2570300B2 JP2570300B2 (en) | 1997-01-08 |
Family
ID=15597356
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62155040A Expired - Fee Related JP2570300B2 (en) | 1987-06-22 | 1987-06-22 | Method for producing polycarbonate polyol |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2570300B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02255822A (en) * | 1988-12-19 | 1990-10-16 | Daicel Chem Ind Ltd | Production of polyurethane |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8686107B2 (en) | 2007-11-16 | 2014-04-01 | Asahi Kasei Chemicals Corporation | Polycarbonate diol |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60181125A (en) * | 1984-02-29 | 1985-09-14 | Nippon Polyurethan Kogyo Kk | Production of polycarbonate polyol |
-
1987
- 1987-06-22 JP JP62155040A patent/JP2570300B2/en not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60181125A (en) * | 1984-02-29 | 1985-09-14 | Nippon Polyurethan Kogyo Kk | Production of polycarbonate polyol |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02255822A (en) * | 1988-12-19 | 1990-10-16 | Daicel Chem Ind Ltd | Production of polyurethane |
Also Published As
Publication number | Publication date |
---|---|
JP2570300B2 (en) | 1997-01-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |