JPS55133434A - Preparation of urea-formaldehyde resin foam - Google Patents
Preparation of urea-formaldehyde resin foamInfo
- Publication number
- JPS55133434A JPS55133434A JP3936279A JP3936279A JPS55133434A JP S55133434 A JPS55133434 A JP S55133434A JP 3936279 A JP3936279 A JP 3936279A JP 3936279 A JP3936279 A JP 3936279A JP S55133434 A JPS55133434 A JP S55133434A
- Authority
- JP
- Japan
- Prior art keywords
- urea
- thiourea
- resin foam
- formaldehyde
- preparation
- 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
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
PURPOSE: To prepare the title resin foam having low foamaldehyde odor, and suitable as a residential heat insulating material, by adding thiourea, etc. to a curing liquid as a formaldehyde acceptor.
CONSTITUTION: A curing liquid composed of (a) a curing agent (e.g. phosphoric acid), (b) a frothing agent (e.g. alkylbenzenesulfonic acid salt), (c) a wetting agent (e.g. polyethylene glycol), (d) a water quality conditioner (e.g. Ca salt, etc.) and (e) a formaldehyde acceptor comprising thiourea (and urea), is foamed and sprayed with an aqueous solution of urea-formaldehyde precondensate to obtain the objective foam. The amount of the thiourea, etc. is pref. 1W20wt% based on the solid content of the precondensate solution.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3936279A JPS5826370B2 (en) | 1979-04-03 | 1979-04-03 | Method for producing urea-formaldehyde resin foam |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3936279A JPS5826370B2 (en) | 1979-04-03 | 1979-04-03 | Method for producing urea-formaldehyde resin foam |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55133434A true JPS55133434A (en) | 1980-10-17 |
JPS5826370B2 JPS5826370B2 (en) | 1983-06-02 |
Family
ID=12550948
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3936279A Expired JPS5826370B2 (en) | 1979-04-03 | 1979-04-03 | Method for producing urea-formaldehyde resin foam |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5826370B2 (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 |
-
1979
- 1979-04-03 JP JP3936279A patent/JPS5826370B2/en not_active Expired
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 |
---|---|
JPS5826370B2 (en) | 1983-06-02 |
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