JPS5688438A - Production of expandable polyurethane compound - Google Patents
Production of expandable polyurethane compoundInfo
- Publication number
- JPS5688438A JPS5688438A JP16478179A JP16478179A JPS5688438A JP S5688438 A JPS5688438 A JP S5688438A JP 16478179 A JP16478179 A JP 16478179A JP 16478179 A JP16478179 A JP 16478179A JP S5688438 A JPS5688438 A JP S5688438A
- Authority
- JP
- Japan
- Prior art keywords
- mixt
- cooled
- froth
- compd
- surfactant
- 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
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Molding Of Porous Articles (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
PURPOSE: To obtain easily the titled compd. by a method wherein a cooled org. polyisocyanate is added to a cooled mixt. consisting of at least one compd. contg. at least two active hydrogen atoms and a urethanation catalyst and, it necessary, a surfactant to obtain a mixed liquid, an inert gas is uniformly dispersed in the mixed liquid to form froth, and the froth is cured by heating.
CONSTITUTION: A mixt. consisting of at least one compd. contg. at least two active hydrogen atoms (e.g. ethylene glycol) and a urethanation catalyst (e.g. triethylamine or tin acetate) and, if necessary, a surfactant (e.g. an organosilicon surfactant), is cooled. To this cooled mixt. is added a cooled org. polyisocyanate (e.g. the 80/20 mixt. of 2,4- and 2,6-tolylene diisocyanate) to form a mixt. which does not contain water. Air is introduced into the mixt, while cooling and mechanically stirring the mixt, to form froth which is structurally stable. Then the froth is cured by heating to produce a polyurethane foam.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16478179A JPS5688438A (en) | 1979-12-20 | 1979-12-20 | Production of expandable polyurethane compound |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16478179A JPS5688438A (en) | 1979-12-20 | 1979-12-20 | Production of expandable polyurethane compound |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5688438A true JPS5688438A (en) | 1981-07-17 |
Family
ID=15799819
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16478179A Pending JPS5688438A (en) | 1979-12-20 | 1979-12-20 | Production of expandable polyurethane compound |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5688438A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006502300A (en) * | 2002-11-18 | 2006-01-19 | ドン ソン エイ アンド ティ カンパニー リミテッド | Method for producing polyurethane foam containing fine pores and polishing pad produced therefrom |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50136357A (en) * | 1974-04-16 | 1975-10-29 |
-
1979
- 1979-12-20 JP JP16478179A patent/JPS5688438A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50136357A (en) * | 1974-04-16 | 1975-10-29 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006502300A (en) * | 2002-11-18 | 2006-01-19 | ドン ソン エイ アンド ティ カンパニー リミテッド | Method for producing polyurethane foam containing fine pores and polishing pad produced therefrom |
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