JPS56130324A - Blow foaming method of hard urethane foam by air spray foaming - Google Patents
Blow foaming method of hard urethane foam by air spray foamingInfo
- Publication number
- JPS56130324A JPS56130324A JP3462780A JP3462780A JPS56130324A JP S56130324 A JPS56130324 A JP S56130324A JP 3462780 A JP3462780 A JP 3462780A JP 3462780 A JP3462780 A JP 3462780A JP S56130324 A JPS56130324 A JP S56130324A
- Authority
- JP
- Japan
- Prior art keywords
- foaming
- component
- foaming agent
- temp
- 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.)
- Granted
Links
Abstract
PURPOSE: To foam well irrespective of an external temp. by mixing and foaming a polyisocyanate component and a polyol component by using a foaming agent liquid at atmospheric temp. and pressure and a gaseous foaming agent.
CONSTITUTION: As foaming agents, a foaming agent (a C foaming agent) (e.g.; trichlorotrifluoromethane) is preliminarily mixed in a polyol component (a B component) and a foaming agent (a D foaming agent) (e.g.; dichlorodifluoromethane) with a b.p. of 5°C or less being gaseous at atmospheric temp. and pressure is mixed in 1W5wt% to a total component wt. of a polyisocyanate (an A component) or in the B component. Subsequently, the A component, the B component, the C foaming agent and the D foaming agent are mixed along with other components such as a catalyst or the like under high pressure in a mixing head and the resulting mixture is subjected to the spray foaming to obtain the hard foamed urethane foam. Because said mixture is subjected to the primary foaming by the D foaming agent during spraying, the heat insulating is carried out well and said mixture is foamed constantly without being affected by a peripheral temp.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3462780A JPS56130324A (en) | 1980-03-18 | 1980-03-18 | Blow foaming method of hard urethane foam by air spray foaming |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3462780A JPS56130324A (en) | 1980-03-18 | 1980-03-18 | Blow foaming method of hard urethane foam by air spray foaming |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56130324A true JPS56130324A (en) | 1981-10-13 |
| JPS6225430B2 JPS6225430B2 (en) | 1987-06-03 |
Family
ID=12419624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3462780A Granted JPS56130324A (en) | 1980-03-18 | 1980-03-18 | Blow foaming method of hard urethane foam by air spray foaming |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56130324A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60147329A (en) * | 1984-01-13 | 1985-08-03 | 三井東圧化学株式会社 | Method of reinforcing expanded protective body |
| JP2008069563A (en) * | 2006-09-14 | 2008-03-27 | Bufa Concrete Protection Japan Kk | Heat-insulating waterproof layer for building or construction, and method of forming the same |
-
1980
- 1980-03-18 JP JP3462780A patent/JPS56130324A/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60147329A (en) * | 1984-01-13 | 1985-08-03 | 三井東圧化学株式会社 | Method of reinforcing expanded protective body |
| JPH0367107B2 (en) * | 1984-01-13 | 1991-10-21 | Mitsui Toatsu Chemicals | |
| JP2008069563A (en) * | 2006-09-14 | 2008-03-27 | Bufa Concrete Protection Japan Kk | Heat-insulating waterproof layer for building or construction, and method of forming the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6225430B2 (en) | 1987-06-03 |
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