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Last Updated: March 28, 2024

Details for Patent: 4,849,228


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Summary for Patent: 4,849,228
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 high molecular polymer has good aging stability and can be used advantageously as an exipient 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)
Application Number:07/117,618
Patent Claim Types:
see list of patent claims
Composition; Compound; Dosage form; Formulation;

Drugs Protected by US Patent 4,849,228

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Patented / Exclusive Use >Submissiondate

Foreign Priority and PCT Information for Patent: 4,849,228

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
Japan60-97617May 07, 1985

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