Generated: December 15, 2017
DrugPatentWatch Database Preview
Details for Patent: 4,728,721
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Summary for Patent: 4,728,721
|Title:|| Polymer, production and use thereof|
|Abstract:||The present invention provides a biodegradable high molecular polymer characterized in that the content of water-soluble low molecular compounds, as calculated on the assumption that said compounds each is a monobasic acid, is less than 0.01 mole per 100 grams of said high molecular polymer. The thus-obtained molecular polymer has good aging stability and can be used advantageously as an excipient for pharmaceutical preparations.|
|Inventor(s):|| Yamamoto; Masaki (Osaka, JP), Okada; Hiroaki (Osaka, JP), Ogawa; Yasuaki (Osaka, JP), Miyagawa; Tsutomu (Saitama, JP) |
|Assignee:|| Takeda Chemical Industries, Ltd. (Osaka, JP) Wako Pure Chemical Industries, Ltd. (Osaka, JP) |
Patent Claim Types:|
see list of patent claims
|Composition; Compound; Formulation; Use; |
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Foreign Priority and PCT Information for Patent: 4,728,721
|Foriegn Application Priority Data|
||Foreign Patent Number
||Foreign Patent Date
|Japan||60-97617||May 07, 1985|
International Patent Family for Patent: 4,728,721
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