ES449816A1 - Foaming agent using urea and acid anhydride as base material - Google Patents
Foaming agent using urea and acid anhydride as base materialInfo
- Publication number
- ES449816A1 ES449816A1 ES449816A ES449816A ES449816A1 ES 449816 A1 ES449816 A1 ES 449816A1 ES 449816 A ES449816 A ES 449816A ES 449816 A ES449816 A ES 449816A ES 449816 A1 ES449816 A1 ES 449816A1
- Authority
- ES
- Spain
- Prior art keywords
- urea
- acid anhydride
- base material
- foaming agent
- thermoplastic synthetic
- 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.)
- Expired
Links
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title abstract 2
- 150000008065 acid anhydrides Chemical class 0.000 title abstract 2
- 239000004202 carbamide Substances 0.000 title abstract 2
- 239000004088 foaming agent Substances 0.000 title 1
- 239000000463 material Substances 0.000 title 1
- 229920002994 synthetic fiber Polymers 0.000 abstract 2
- 229920001169 thermoplastic Polymers 0.000 abstract 2
- 239000004416 thermosoftening plastic Substances 0.000 abstract 2
- 239000006260 foam Substances 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 239000003380 propellant Substances 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
Landscapes
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
Process for obtaining foamed objects from thermoplastic synthetic materials, characterized in that the thermoplastic synthetic material is brought into contact with propellants based on urea and acid anhydride and the mixture is reacted by heating at temperatures of 150 to 350ยบ c, with what foam. (Machine-translation by Google Translate, not legally binding)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19752531630 DE2531630A1 (en) | 1975-07-15 | 1975-07-15 | FUEL COMBINATION BASED ON UREA AND ACID ANHYDRIDES |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES449816A1 true ES449816A1 (en) | 1977-08-01 |
Family
ID=5951574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES449816A Expired ES449816A1 (en) | 1975-07-15 | 1976-07-14 | Foaming agent using urea and acid anhydride as base material |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS5212276A (en) |
| BE (1) | BE844032A (en) |
| BR (1) | BR7604584A (en) |
| DE (1) | DE2531630A1 (en) |
| ES (1) | ES449816A1 (en) |
| FR (1) | FR2318196A1 (en) |
| NL (1) | NL7607790A (en) |
-
1975
- 1975-07-15 DE DE19752531630 patent/DE2531630A1/en active Pending
-
1976
- 1976-07-12 BE BE168828A patent/BE844032A/en unknown
- 1976-07-13 JP JP8262176A patent/JPS5212276A/en active Pending
- 1976-07-14 NL NL7607790A patent/NL7607790A/en unknown
- 1976-07-14 ES ES449816A patent/ES449816A1/en not_active Expired
- 1976-07-14 BR BR7604584A patent/BR7604584A/en unknown
- 1976-07-15 FR FR7621681A patent/FR2318196A1/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5212276A (en) | 1977-01-29 |
| NL7607790A (en) | 1977-01-18 |
| FR2318196A1 (en) | 1977-02-11 |
| FR2318196B3 (en) | 1979-04-06 |
| DE2531630A1 (en) | 1977-02-03 |
| BE844032A (en) | 1977-01-12 |
| BR7604584A (en) | 1977-08-02 |
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