JPS56166237A - Foam of urea formaldehyde resin - Google Patents
Foam of urea formaldehyde resinInfo
- Publication number
- JPS56166237A JPS56166237A JP6792280A JP6792280A JPS56166237A JP S56166237 A JPS56166237 A JP S56166237A JP 6792280 A JP6792280 A JP 6792280A JP 6792280 A JP6792280 A JP 6792280A JP S56166237 A JPS56166237 A JP S56166237A
- Authority
- JP
- Japan
- Prior art keywords
- formaldehyde
- urea
- reacting
- foam
- aqueous solution
- 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
Abstract
PURPOSE: To obtain the titled foam having low harmfulness with suppressing the amount of formed formaldehyde, by reacting an aqueous solution of a procondensate of urea formaldehyde having a specific molar ratio of formaldehyde to urea with a flamable and curable solution.
CONSTITUTION: (A) An aqueous solution of a precondensate of urea formaldehyde having a molar ratio of formaldehyde to urea 1.2W1.4 and (B) a foamable and curable solution, e.g., an acidic solution comprising alkylbenzenesulfonic acid, etc., for example, are sent to a foaming machine and molded to give the desired foam. The component A, for example, is obtained by reacting urea with formaldehyde in an alkali aqueous solution, followed by reacting them further in a weakly acidic condition.
USE: Having low thermal conductivity and being slightly combustible, useful as a heat insulating material, warm material, low-temperature insulating material, etc.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6792280A JPS56166237A (en) | 1980-05-23 | 1980-05-23 | Foam of urea formaldehyde resin |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6792280A JPS56166237A (en) | 1980-05-23 | 1980-05-23 | Foam of urea formaldehyde resin |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56166237A true JPS56166237A (en) | 1981-12-21 |
JPS6221372B2 JPS6221372B2 (en) | 1987-05-12 |
Family
ID=13358883
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6792280A Granted JPS56166237A (en) | 1980-05-23 | 1980-05-23 | Foam of urea formaldehyde resin |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56166237A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008544005A (en) * | 2005-06-14 | 2008-12-04 | ビーエーエスエフ ソシエタス・ヨーロピア | Thermoformable melamine / formaldehyde foam material with low formaldehyde emission |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0286573U (en) * | 1988-12-22 | 1990-07-09 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5488967A (en) * | 1977-12-27 | 1979-07-14 | Mitsubishi Gas Chem Co Inc | Production of urea resin foam |
-
1980
- 1980-05-23 JP JP6792280A patent/JPS56166237A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5488967A (en) * | 1977-12-27 | 1979-07-14 | Mitsubishi Gas Chem Co Inc | Production of urea resin foam |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008544005A (en) * | 2005-06-14 | 2008-12-04 | ビーエーエスエフ ソシエタス・ヨーロピア | Thermoformable melamine / formaldehyde foam material with low formaldehyde emission |
Also Published As
Publication number | Publication date |
---|---|
JPS6221372B2 (en) | 1987-05-12 |
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