PROCESS FOR EXTENDING THE SHELF LIFE OF GASEOUS OLEFINIC PROPELLANTS IN POLYURETHANE FOAMS
The invention described herein generally pertains to a composition and a method for improving the shelf life of a gaseous hydrofluoroolefin propellant, the improvement comprising at least the increased aromatic polyester polyol(s) in combination with a tertiary amine catalyst comprising at least two...
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Format: | Patent |
Sprache: | eng ; fre ; ger |
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Zusammenfassung: | The invention described herein generally pertains to a composition and a method for improving the shelf life of a gaseous hydrofluoroolefin propellant, the improvement comprising at least the increased aromatic polyester polyol(s) in combination with a tertiary amine catalyst comprising at least two cyclohexyl rings and an aliphatic metal salt catalyst, the amine catalyst having less than 10% nitrogen on a weight basis. |
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