USE OF IMPROVED N-ALKYL PYRROLIDONE SOLVENTS
The present invention is concerned with the use of pyrrolidones selected from the group consisting of N-n-butylpyrrolidone, N-isobutylpyrrolidone, N-t-butylpyrrolidone, N-n-pentylpyrrolidone, N-(methyl-substituted butyl)pyrrolidones, ring-methyl-substituted N-propyl and N-butyl pyrrolidones and N-(m...
Gespeichert in:
Hauptverfasser: | , , |
---|---|
Format: | Patent |
Sprache: | eng ; pol |
Schlagworte: | |
Online-Zugang: | Volltext bestellen |
Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
Zusammenfassung: | The present invention is concerned with the use of pyrrolidones selected from the group consisting of N-n-butylpyrrolidone, N-isobutylpyrrolidone, N-t-butylpyrrolidone, N-n-pentylpyrrolidone, N-(methyl-substituted butyl)pyrrolidones, ring-methyl-substituted N-propyl and N-butyl pyrrolidones and N-(methoxypropyl) pyrrolidone as replacement solvents in specific applications wherein N-methylpyrrolidone (NMP), N-ethyl-2-pyrrolidone (NEP), N,N-dimethyl acetamide (DMAc), and/or dimethyl formamide (DMF) is the appropriate solvent to be used. The invention is also concerned with a solvent comprising NMP, NEP, DMAc, or DMF and one or more pyrrolidones selected from said group, as well as a solvent comprising a second solvent, which is a replacement solvent for NMP, NEP, DMAc, or DMF and one or more selected from said group. |
---|