The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 23, 2016
Filed:
Dec. 05, 2011
Tomoaki Yamasaki, Hyogo, JP;
Shinya Okazaki, Hyogo, JP;
Hiroki Okazaki, Hyogo, JP;
Shigeki Hamamoto, Hyogo, JP;
Changming Zhao, Chiba, JP;
Minoru Iwata, Chiba, JP;
Yuki Hayashi, Chiba, JP;
Tomoaki Yamasaki, Hyogo, JP;
Shinya Okazaki, Hyogo, JP;
Hiroki Okazaki, Hyogo, JP;
Shigeki Hamamoto, Hyogo, JP;
Changming Zhao, Chiba, JP;
Minoru Iwata, Chiba, JP;
Yuki Hayashi, Chiba, JP;
SUMITOMO SEIKA CHEMICALS CO., LTD., Hyogo, JP;
ADVANCED SOFTMATERIALS INC., Chiba, JP;
Abstract
The present invention aims to provide a polyrotaxane composition having excellent storage stability. The present invention relates to a polyrotaxane composition comprising: a polyrotaxane containing a cyclodextrin, a polyethylene glycol which is 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 polyphenol antioxidant.