JPS5740533A - Foaming agent for polyurethane - Google Patents
Foaming agent for polyurethaneInfo
- Publication number
- JPS5740533A JPS5740533A JP11606780A JP11606780A JPS5740533A JP S5740533 A JPS5740533 A JP S5740533A JP 11606780 A JP11606780 A JP 11606780A JP 11606780 A JP11606780 A JP 11606780A JP S5740533 A JPS5740533 A JP S5740533A
- Authority
- JP
- Japan
- Prior art keywords
- foaming agent
- polyurethane
- chlorotetrafluoroethane
- aliphatic hydrocarbon
- pressure
- 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
Abstract
PURPOSE: To provide a novel foaming agent for polyurethane, giving a foamed article containing uniform foams and having excellent uniformity and high insulation, by using chlorotetrafluoroethane as a component.
CONSTITUTION: The objective foaming agent is prepared by mixing (A) a chlorotetrafluoroethane as a high-pressure foaming agent, and if necessary (B) an aliphatic hydrocarbon (e.g. pentane) having a boiling point of 10W50°C and/or a halogenated aliphatic hydrocarbon (e.g. methylene chloride, propyl chloride, etc.) as a low- pressure foaming agent. The weight ratio of (A):(B) is e.g. (20W80):(80W20). The foaming agent is incorporated in the polyurethane raw material in an amount of e.g. 22.5wt%.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11606780A JPS5740533A (en) | 1980-08-22 | 1980-08-22 | Foaming agent for polyurethane |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11606780A JPS5740533A (en) | 1980-08-22 | 1980-08-22 | Foaming agent for polyurethane |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5740533A true JPS5740533A (en) | 1982-03-06 |
Family
ID=14677883
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11606780A Pending JPS5740533A (en) | 1980-08-22 | 1980-08-22 | Foaming agent for polyurethane |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5740533A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0398148A2 (en) * | 1989-05-10 | 1990-11-22 | The Dow Chemical Company | Preparation of urethane and isocyanurate foams in the presence of a low boiling point blowing agents |
US6117917A (en) * | 1999-04-12 | 2000-09-12 | Elf Atochem North America, Inc. | Blowing agent blends and use thereof |
WO2001051552A3 (en) * | 2000-01-07 | 2002-01-03 | Honeywell Int Inc | Blowing agent blends |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3327031A (en) * | 1964-01-22 | 1967-06-20 | Du Pont | Process for the extrusion of improved closed-cell foams |
JPS5562936A (en) * | 1978-09-05 | 1980-05-12 | Dow Chemical Co | Manufacture of polyethylene foam |
-
1980
- 1980-08-22 JP JP11606780A patent/JPS5740533A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3327031A (en) * | 1964-01-22 | 1967-06-20 | Du Pont | Process for the extrusion of improved closed-cell foams |
JPS5562936A (en) * | 1978-09-05 | 1980-05-12 | Dow Chemical Co | Manufacture of polyethylene foam |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0398148A2 (en) * | 1989-05-10 | 1990-11-22 | The Dow Chemical Company | Preparation of urethane and isocyanurate foams in the presence of a low boiling point blowing agents |
EP0398148A3 (en) * | 1989-05-10 | 1991-03-27 | The Dow Chemical Company | Preparation of urethane and isocyanurate foams in the presence of a low boiling point blowing agents |
US6117917A (en) * | 1999-04-12 | 2000-09-12 | Elf Atochem North America, Inc. | Blowing agent blends and use thereof |
WO2001051552A3 (en) * | 2000-01-07 | 2002-01-03 | Honeywell Int Inc | Blowing agent blends |
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