JPS5774323A - Flame-retarding urethane foam and its production - Google Patents
Flame-retarding urethane foam and its productionInfo
- Publication number
- JPS5774323A JPS5774323A JP55150230A JP15023080A JPS5774323A JP S5774323 A JPS5774323 A JP S5774323A JP 55150230 A JP55150230 A JP 55150230A JP 15023080 A JP15023080 A JP 15023080A JP S5774323 A JPS5774323 A JP S5774323A
- Authority
- JP
- Japan
- Prior art keywords
- catalyst
- resin
- retarding
- polyisocyanate
- urethane foam
- 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)
- Polyurethanes Or Polyureas (AREA)
Abstract
PURPOSE: To obtain the titled dense uniform unbrittle highly flame-retarding foam, by reacting a benzyl ether type liquid phenol/HCHO resin with a polyisocyanate in the presence of both a P-containing flame retardant and a catalyst.
CONSTITUTION: A precondensate obtained by reacting phenol with a formaldehyde in the presence of a catalyst which is an alkaline earth metal oxide, hydroxide or the like is stripped of the unreacted monomers by evaporation and, then, polycondensed to obtain (A) a normally liquid benzylphenol/HCHO resin having benzyl ether groups and methylol groups and having a G.P.C. chart characteristic curve having a maximum peak in the mononuclear compound region and declining sharply in the trinuclear compound region. Next, this resin A is reacted with a polyisocyanate in the presence of a P-containing flame retardant, a blowing agent and a curing catalyst to obtain an urethane foam having non-flammability (JIS-K-7201) of class 2 or higher.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55150230A JPS5774323A (en) | 1980-10-28 | 1980-10-28 | Flame-retarding urethane foam and its production |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55150230A JPS5774323A (en) | 1980-10-28 | 1980-10-28 | Flame-retarding urethane foam and its production |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP59073189A Division JPS6076540A (en) | 1984-04-12 | 1984-04-12 | Production of phenolic urethane foam having improved adhesive property |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5774323A true JPS5774323A (en) | 1982-05-10 |
Family
ID=15492383
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55150230A Pending JPS5774323A (en) | 1980-10-28 | 1980-10-28 | Flame-retarding urethane foam and its production |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5774323A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61263742A (en) * | 1985-05-20 | 1986-11-21 | 日立化成工業株式会社 | Flame-retardant structure |
JPS62241914A (en) * | 1986-04-15 | 1987-10-22 | Asahi Organic Chem Ind Co Ltd | Highly heat-insulating phenolic urethane foam |
-
1980
- 1980-10-28 JP JP55150230A patent/JPS5774323A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61263742A (en) * | 1985-05-20 | 1986-11-21 | 日立化成工業株式会社 | Flame-retardant structure |
JPS62241914A (en) * | 1986-04-15 | 1987-10-22 | Asahi Organic Chem Ind Co Ltd | Highly heat-insulating phenolic urethane foam |
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