发明名称 |
PRODUCTION METHOD FOR POWDERED HYDROPHILIC MODIFIED POLYROTAXANE |
摘要 |
The present invention aims to provide a method of producing a powdered hydrophilic modified polyrotaxane, which enables production of a powdered hydrophilic modified polyrotaxane excellent in storage stability in an industrially advantageous way. The present invention provides a method of producing a powdered hydrophilic modified polyrotaxane, comprising: a hydrophilic modification step of preparing a solution of a hydrophilic modified polyrotaxane by modifying all or part of hydroxy groups on a cyclodextrin of a polyrotaxane with hydrophilic modifying groups, the polyrotaxane containing the cyclodextrin, a polyethylene glycol included in the cavities of the cyclodextrin molecules in a skewered manner, and a capping group that is placed at each end of the polyethylene glycol and prevents dissociation of the cyclodextrin molecules from the polyethylene glycol; and a drying step of spraying the prepared solution of the hydrophilic modified polyrotaxane and drying the solution of the hydrophilic modified polyrotaxane in a heated gas stream. |
申请公布号 |
US2014066615(A1) |
申请公布日期 |
2014.03.06 |
申请号 |
US201114004839 |
申请日期 |
2011.12.05 |
申请人 |
YAMASAKI TOMOAKI;OKAZAKI SHINYA;OKAZAKI HIROKI;HAMAMOTO SHIGEKI;HAYASHI YUKI;IWATA MINORU;ADVANCED SOFTMATERIALS INC.;SUMITOMO SEIKA CHEMICALS CO., LTD. |
发明人 |
YAMASAKI TOMOAKI;OKAZAKI SHINYA;OKAZAKI HIROKI;HAMAMOTO SHIGEKI;HAYASHI YUKI;IWATA MINORU |
分类号 |
C08B37/16 |
主分类号 |
C08B37/16 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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