JPS5736116A - Polyol composition for polyurethane synthesis - Google Patents
Polyol composition for polyurethane synthesisInfo
- Publication number
- JPS5736116A JPS5736116A JP11097880A JP11097880A JPS5736116A JP S5736116 A JPS5736116 A JP S5736116A JP 11097880 A JP11097880 A JP 11097880A JP 11097880 A JP11097880 A JP 11097880A JP S5736116 A JPS5736116 A JP S5736116A
- Authority
- JP
- Japan
- Prior art keywords
- pref
- urea
- polyol
- diamine
- polyol composition
- 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
- Polyethers (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
PURPOSE: To prepare the titled composition giving a polyurethane having improved physical properties at a low cost, without using the treating process after acid neutralization, by modifying crude polyol containing residual alkaline catalyst with urea, etc.
CONSTITUTION: (A) Crude poly(oxyalkylene)polyol (e.g. adduct of ethylene glycol and alkylene oxide) is charged e.g. into a rotary evaporator, mixed with (B) urea or urea and an amine compound (pref. a diamine compound such as p-toluene- diamine), and made to react pref. under reduced pressure. Ammonia is pref. removed from the system sufficiently by stripping, and the precipitate such as inorganic materials is removed e.g. by treating with chloroform, etc. to obtain the objective polyol composition. The reaction temperature is pref. 130W200°C, and the urea is used pref. in excess.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11097880A JPS5736116A (en) | 1980-08-14 | 1980-08-14 | Polyol composition for polyurethane synthesis |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11097880A JPS5736116A (en) | 1980-08-14 | 1980-08-14 | Polyol composition for polyurethane synthesis |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5736116A true JPS5736116A (en) | 1982-02-26 |
Family
ID=14549297
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11097880A Pending JPS5736116A (en) | 1980-08-14 | 1980-08-14 | Polyol composition for polyurethane synthesis |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5736116A (en) |
-
1980
- 1980-08-14 JP JP11097880A patent/JPS5736116A/en active Pending
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