发明授权
- 专利标题: Polymer, production and use thereof
- 专利标题(中): 聚合物,生产和使用
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申请号: US858040申请日: 1986-05-01
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公开(公告)号: US4728721A公开(公告)日: 1988-03-01
- 发明人: Masaki Yamamoto , Hiroaki Okada , Yasuaki Ogawa , Tsutomu Miyagawa
- 申请人: Masaki Yamamoto , Hiroaki Okada , Yasuaki Ogawa , Tsutomu Miyagawa
- 申请人地址: JPX Osaka JPX Osaka
- 专利权人: Takeda Chemical Industries, Ltd.,Wako Pure Chemical Industries, Ltd.
- 当前专利权人: Takeda Chemical Industries, Ltd.,Wako Pure Chemical Industries, Ltd.
- 当前专利权人地址: JPX Osaka JPX Osaka
- 优先权: JPX60-97617 19850507
- 主分类号: A61K9/52
- IPC分类号: A61K9/52 ; A61K9/16 ; A61K9/50 ; A61K45/00 ; A61K47/00 ; A61K47/34 ; B01J13/12 ; C08G63/06 ; C08G63/78 ; C08G63/88 ; C08G63/90 ; C08L51/00 ; C08L51/02 ; C08L67/00 ; C08L77/00 ; C08L101/00 ; C08G63/74
摘要:
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.
公开/授权文献
- US5248062A Beer keg tap apparatus 公开/授权日:1993-09-28
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