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:
Nov. 15, 2016
Filed:
Sep. 10, 2009
Hiroshi Handa, Yokohama, JP;
Mamoru Hatakeyama, Yokohama, JP;
Satoshi Sakamoto, Yokohama, JP;
Yusuke Mochizuki, Yokohama, JP;
Shintaro Kawada, Yokohama, JP;
Hiroshi Handa, Yokohama, JP;
Mamoru Hatakeyama, Yokohama, JP;
Satoshi Sakamoto, Yokohama, JP;
Yusuke Mochizuki, Yokohama, JP;
Shintaro Kawada, Yokohama, JP;
TOKYO INSTITUTE OF TECHNOLOGY, Tokyo, JP;
Abstract
Polymer particles are provided which contain fluorescent molecules with high presence ratio in a polymer layer thereof and a method for preparing thereof. Polymer particles are swelled in a non-aqueous solution excluding exclusively water preferably promotes selling of the polymer layer and transfer of the fluorescent molecules to the polymer layer could not protected by water molecules such that much more fluorescent molecule may be introduced into inside of the polymer layer. Furthermore, since the water is added to the reaction system prior to evaporation removal of the non-aqueous solvent, dry-up of the polymer particles is prevented by the water remained in the reaction system and the polymer particles including fluorescent molecules with high presence ratio of the fluorescent molecules preferably keep high dispersibility using the above described procedures.