Hamre, Schumann, Mueller & Larson, P.C.
Method for producing pseudopolyrotaxane
The present invention aims to provide an industrially advantageous method of producing a powdery pseudopolyrotaxane with a high inclusion ratio. The present invention relates to a method for producing a pseudopolyrotaxane, including: an inclusion step of mixing a polyethylene glycol and a cyclodextrin in an aqueous medium to form an aqueous dispersion of pseudopolyrotaxane that contains pseudopolyrotaxane particles in which the polyethylene glycol is included in the cavities of the cyclodextrin molecules in a skewered manner; and a drying step of drying the aqueous dispersion of pseudopolyrotaxane produced in the inclusion step to obtain the pseudopolyrotaxane. In the drying step, the aqueous dispersion of pseudopolyrotaxane is sprayed and dried in a heated gas-stream.
Advanced Softmaterials Inc. Sumitomo Seika Chemicals Co., Ltd.
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C08G C08L C08L C08J C08J C08B
inventional inventional inventional additional inventional inventional
Shigeki Hiroki Changming Shinya Tomoaki
Hamamoto Okazaki Zhao Okazaki Yamasaki