JPS56147817A - Preparation of rigid isocyanurate foam - Google Patents
Preparation of rigid isocyanurate foamInfo
- Publication number
- JPS56147817A JPS56147817A JP5207580A JP5207580A JPS56147817A JP S56147817 A JPS56147817 A JP S56147817A JP 5207580 A JP5207580 A JP 5207580A JP 5207580 A JP5207580 A JP 5207580A JP S56147817 A JPS56147817 A JP S56147817A
- Authority
- JP
- Japan
- Prior art keywords
- foam
- raw materials
- organic polyisocyanate
- preparation
- phosphonate compound
- 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)
Abstract
PURPOSE: To obtain the titled foam having the very low smoking property, improvied flame retardancy without bursting even in contact with a flame, etc., by adding a specific amount of a vinyl phosphonate compound to raw materials for the foam.
CONSTITUTION: In reacting an organic polyisocyanate, e.g. diphenylmethane diisocyanate, with a polyol, e.g. the reaction product between an unsaturated polycarboxylic acid and an alkylene oxide, in the presence of a catalyst, a blowing agent, e.g. trichloromonofluoromethane or water, and a foam stabilizer, a vinyl phosphonate compound expressed by the formula (R1 and R2 are 1W6C alkyl, halogenated alkyl or hydroxyalkyl) in an amount of 1W50pts.wt., preferably 5W 30pts.wt. based on one equivalent organic polyisocyanate is added to the raw materials.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5207580A JPS56147817A (en) | 1980-04-18 | 1980-04-18 | Preparation of rigid isocyanurate foam |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5207580A JPS56147817A (en) | 1980-04-18 | 1980-04-18 | Preparation of rigid isocyanurate foam |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56147817A true JPS56147817A (en) | 1981-11-17 |
JPS6251289B2 JPS6251289B2 (en) | 1987-10-29 |
Family
ID=12904689
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5207580A Granted JPS56147817A (en) | 1980-04-18 | 1980-04-18 | Preparation of rigid isocyanurate foam |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56147817A (en) |
-
1980
- 1980-04-18 JP JP5207580A patent/JPS56147817A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6251289B2 (en) | 1987-10-29 |
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