Polyethylene glycol and process for producing the same
Polyethylene glycol for use in fields with application to a living body wherein the sum of the contents of ethylene glycol and diethylene glycol in the polyethylene glycol is less than or equal to that expressed in the following formula [I]: 1 Sum of ethylene glycol and diethylene glycol...
Gespeichert in:
| Hauptverfasser: | , , |
|---|---|
| Format: | Patent |
| Sprache: | eng |
| Online-Zugang: | Volltext bestellen |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| Zusammenfassung: | Polyethylene glycol for use in fields with application to a living body wherein the sum of the contents of ethylene glycol and diethylene glycol in the polyethylene glycol is less than or equal to that expressed in the following formula [I]:
1
Sum
of
ethylene
glycol
and
diethylene
glycol
contents
(
ppm
)
=
150
×
2900
×
0.85
(
x
-
150
)
/
44
x
[
I
]
wherein x represents the average molecular weight of the polyethylene glycol, and the polyethylene glycol has an average molecular weight ranging from 190 to 1,050. |
|---|