发明授权
US5496937A Polysaccharide substances, process for producing them and use of them
失效
多糖物质，它们的生产和使用的过程
- 专利标题： Polysaccharide substances, process for producing them and use of them
- 专利标题（中）： 多糖物质，它们的生产和使用的过程
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申请号： US239760申请日： 1994-05-09
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公开(公告)号： US5496937A公开(公告)日： 1996-03-05
- 发明人: Yoshio Okamoto , Naoki Enomoto , Sachiko Furukawa , Yasushi Ogasawara , Hirofumi Akano , Yoshiya Kawamura
- 申请人： Yoshio Okamoto , Naoki Enomoto , Sachiko Furukawa , Yasushi Ogasawara , Hirofumi Akano , Yoshiya Kawamura
- 申请人地址： JPX Handa
- 专利权人： Nakano Vinegar Co., Ltd.
- 当前专利权人： Nakano Vinegar Co., Ltd.
- 当前专利权人地址： JPX Handa
- 优先权： JPX5-135170 19930514
- 主分类号： B01J20/32
- IPC分类号： B01J20/32 ; C07B57/00 ; C08B37/00 ; B01D15/08 ; C08B33/02 ; G01N30/48
摘要：
A polysaccharide substance having the following formula is provided: ##STR1## Also provided is a method of producing the polysaccharide substance in which an oligosaccharide having a degree of polymerization from 3 to 10 is chemically bonded to a silane agent at the reducing terminal of the resultant oligosaccharide, the oligosaccharide compound is then polymerized to an average degree of polymerization from 11 to 500 in the presence of an enzyme. Another method for producing the polysaccharide substance is provided in which an aldehyde group at the reducing terminal of an oligosaccharide having a degree of polymerization from 3 to 10 is oxidized with an oxidizing agent, and the saccharide chain of the oxidized product is polymerized to a degree of polymerization from 11 to 500 in the presence of an enzyme, followed by the addition of an acid. The polysaccharide substance has excellent solvent resistance and is useful as a separating agent for chromatography, especially for the separation of chiral compounds.
公开/授权文献
- US4893134A Thermal transfer recording apparatus 公开/授权日：1990-01-09
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