IT1245864B - Method for stabilizing hydrochlorofluorocarbons - Google Patents
Method for stabilizing hydrochlorofluorocarbonsInfo
- Publication number
- IT1245864B IT1245864B ITMI910989A ITMI910989A IT1245864B IT 1245864 B IT1245864 B IT 1245864B IT MI910989 A ITMI910989 A IT MI910989A IT MI910989 A ITMI910989 A IT MI910989A IT 1245864 B IT1245864 B IT 1245864B
- Authority
- IT
- Italy
- Prior art keywords
- hydrochlorofluorocarbons
- stabilizing
- substances
- mononitroalkanes
- polyol
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract 2
- 230000000087 stabilizing effect Effects 0.000 title abstract 2
- 239000000126 substance Substances 0.000 abstract 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract 1
- 238000009472 formulation Methods 0.000 abstract 1
- 229910052739 hydrogen Inorganic materials 0.000 abstract 1
- 239000001257 hydrogen Substances 0.000 abstract 1
- 230000002401 inhibitory effect Effects 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 229920005862 polyol Polymers 0.000 abstract 1
- 229920000098 polyolefin Polymers 0.000 abstract 1
- 150000003077 polyols Chemical class 0.000 abstract 1
- 229920002635 polyurethane Polymers 0.000 abstract 1
- 239000004814 polyurethane Substances 0.000 abstract 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention concerns a method for inhibiting the reaction between hydrochlorofluorocarbons and organic substances containing atoms of reactive hydrogen in the uses in which the aforesaid hydrochlorofluorocarbons come into contact with these substances, in particular in polyol-based formulations for the preparation of expanded polyurethanes. According to the invention, small quantities of a stabilizing substance selected from particular polyalkenes containing at least one pair of conjugated ethylenic double bonds or particular mononitroalkanes are used.
Priority Applications (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITMI910989A IT1245864B (en) | 1991-04-11 | 1991-04-11 | Method for stabilizing hydrochlorofluorocarbons |
SI19929200047A SI9200047A (en) | 1991-04-11 | 1992-04-06 | Methods for inhibition of degradation of chlorofluorhydrocarbons used as foaming agents in polyurethane and polyisocianurate foams preparation |
ES92106237T ES2084862T3 (en) | 1991-04-11 | 1992-04-10 | USE OF NITROMETHANE, NITROETHANE AND 1-NITROPROPANE TO INHIBIT THE DEGRADATION OF HYDROCHLOROFLUOROCARBES USED AS FOAMING AGENTS IN THE PREPARATION OF EXPANDED POLYURETHANES AND POLYISOCYANURATES. |
AT92106237T ATE135723T1 (en) | 1991-04-11 | 1992-04-10 | USE OF NITROMETHANE, NITROETHANE AND 1-NITROPROPANE TO PREVENT THE DEGRADATION OF HYDROCHLOROFLOROCARBONS USED AS BLOWING AGENT IN THE PRODUCTION OF FOAMED POLYURETHANES AND POLYISOCYANURATES |
EP92106237A EP0508449B1 (en) | 1991-04-11 | 1992-04-10 | Use of nitromethane, nitroethane and 1-nitropropane for inhibiting the degradation of hydrochlorofluorocarbons utilized as foaming agents in the preparation of foamed polyurethanes and polyisocyanurates |
BR929201324A BR9201324A (en) | 1991-04-11 | 1992-04-10 | PROCESS TO INHIBIT DEHYDROHALOGENATION DEGRADATION OF CHLORHYDRO FLUORCARBONS HAVING TWO CARBON ATOMS AND COMPOSITION BASED ON CHLORHYDRO FLUORCARBON |
DE69209121T DE69209121T2 (en) | 1991-04-11 | 1992-04-10 | Use of nitromethane, nitroethane and 1-nitropropane to prevent degradation of the chlorofluorocarbons used as blowing agents in the production of foamed polyurethanes and polyisocyanurates |
CA002065885A CA2065885A1 (en) | 1991-04-11 | 1992-04-13 | Method for inhibiting the degradation of hydrochlorofluorocarbons utilized as foaming agents in the preparation of foamed polyurethanes and polyisocyanurates |
JP11962292A JP3247144B2 (en) | 1991-04-11 | 1992-04-13 | Method for inhibiting the degradation of hydrochlorofluorocarbons used as blowing agents in the production of foamed polyurethanes and polyisocyanurates |
US08/260,092 US5464882A (en) | 1991-04-11 | 1994-06-15 | Method for inhibiting the degradation of hydrochlorofluorocarbons utilized as foaming agents in the preparation of foamed polyurethanes and polyisocyanurates |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITMI910989A IT1245864B (en) | 1991-04-11 | 1991-04-11 | Method for stabilizing hydrochlorofluorocarbons |
Publications (3)
Publication Number | Publication Date |
---|---|
ITMI910989A0 ITMI910989A0 (en) | 1991-04-11 |
ITMI910989A1 ITMI910989A1 (en) | 1992-10-11 |
IT1245864B true IT1245864B (en) | 1994-10-25 |
Family
ID=11359527
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ITMI910989A IT1245864B (en) | 1991-04-11 | 1991-04-11 | Method for stabilizing hydrochlorofluorocarbons |
Country Status (1)
Country | Link |
---|---|
IT (1) | IT1245864B (en) |
-
1991
- 1991-04-11 IT ITMI910989A patent/IT1245864B/en active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
ITMI910989A0 (en) | 1991-04-11 |
ITMI910989A1 (en) | 1992-10-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
0001 | Granted | ||
TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19970422 |