Polyethylene glycol and process for producing the same
1. Field of the Invention 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]: wherein x represents the average...
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| Format: | Patent |
| Sprache: | eng |
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