JPS5222098A - Process for preparing polyoxy tetramethylene glycol - Google Patents
Process for preparing polyoxy tetramethylene glycolInfo
- Publication number
- JPS5222098A JPS5222098A JP9717975A JP9717975A JPS5222098A JP S5222098 A JPS5222098 A JP S5222098A JP 9717975 A JP9717975 A JP 9717975A JP 9717975 A JP9717975 A JP 9717975A JP S5222098 A JPS5222098 A JP S5222098A
- Authority
- JP
- Japan
- Prior art keywords
- tetramethylene glycol
- polyoxy tetramethylene
- preparing
- preparing polyoxy
- oplymerizing
- 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
- Polyethers (AREA)
Abstract
PURPOSE: To prepare polyoxytetramethylene glycol by ring opening oplymerizing tetrahydrofuran using trifluoromethanesulfonic acid and fuming sulfuric acid as catalysts.
COPYRIGHT: (C)1977,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9717975A JPS591293B2 (en) | 1975-08-12 | 1975-08-12 | Polyoxytetramethylene glycol |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9717975A JPS591293B2 (en) | 1975-08-12 | 1975-08-12 | Polyoxytetramethylene glycol |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5222098A true JPS5222098A (en) | 1977-02-19 |
JPS591293B2 JPS591293B2 (en) | 1984-01-11 |
Family
ID=14185345
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9717975A Expired JPS591293B2 (en) | 1975-08-12 | 1975-08-12 | Polyoxytetramethylene glycol |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS591293B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5931560A (en) * | 1982-08-17 | 1984-02-20 | Toyo Takasago Kandenchi Kk | Manganese dioxide dry cell and its manufacture |
JP2004211086A (en) * | 2002-12-20 | 2004-07-29 | Hodogaya Chem Co Ltd | Method for producing polyether polyol with narrowed molecular weight distribution |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3838072B2 (en) * | 2001-10-31 | 2006-10-25 | ソニー株式会社 | headphone |
-
1975
- 1975-08-12 JP JP9717975A patent/JPS591293B2/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5931560A (en) * | 1982-08-17 | 1984-02-20 | Toyo Takasago Kandenchi Kk | Manganese dioxide dry cell and its manufacture |
JPH0243307B2 (en) * | 1982-08-17 | 1990-09-27 | ||
JP2004211086A (en) * | 2002-12-20 | 2004-07-29 | Hodogaya Chem Co Ltd | Method for producing polyether polyol with narrowed molecular weight distribution |
Also Published As
Publication number | Publication date |
---|---|
JPS591293B2 (en) | 1984-01-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5222098A (en) | Process for preparing polyoxy tetramethylene glycol | |
JPS5223020A (en) | Process for preparation of fluorocompound containing oxygen | |
JPS5214738A (en) | Process for preparation of anisaldehyde | |
JPS51136615A (en) | Process for preparation of methacrylic acid | |
JPS5232985A (en) | Process for the preparation of polyolefin | |
JPS5398923A (en) | Preparation of hydroxyacetic acid | |
JPS52111587A (en) | Preparation of 6-aminopenam carboxylic acid-1-oxide or its derivatives | |
JPS5239612A (en) | Process for preparation of unsaturated glycol diesters | |
JPS5259700A (en) | Preparation of acid anhydride ester polymers | |
JPS51130694A (en) | Process for producing methacrolein oxidation catalyst | |
JPS5239638A (en) | Process for preparation of decabromobiphenylether | |
JPS529696A (en) | Manufacturing method of magnetic-sensitive active carbon | |
JPS5233610A (en) | Process for preparation of perfluorovinylether | |
JPS5222097A (en) | Process for preparing polyoxy tetramethylene glycol | |
JPS5315384A (en) | Preparation of methylpiperazinones | |
JPS51138648A (en) | Process for preparing cyclohexene | |
JPS51137686A (en) | Method of preparing catalyst | |
JPS52255A (en) | Process for preparing l-ascorbic acid | |
JPS5225716A (en) | Process for preparation of methacrylic acid | |
JPS5312807A (en) | Preparation of glutaric acid | |
JPS5359622A (en) | Preparation of saccharic acid salt mixture | |
JPS51118379A (en) | Transistor | |
JPS51125336A (en) | Process for preparation of cresol formate | |
JPS5334772A (en) | Preparation of 2-benzothiazolines | |
JPS51143632A (en) | Process for preparation of pheuols |