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:
Jun. 09, 2015
Filed:
Jul. 27, 2011
Akihiro Kishimura, Tokyo, JP;
Kazunori Kataoka, Tokyo, JP;
Stephanie Lee, Tokyo, JP;
Yasutaka Anraku, Tokyo, JP;
Aya Koide, Hino, JP;
Mitsuru Sakai, Tokyo, JP;
Qiuming Yu, Hino, JP;
Akihiro Kishimura, Tokyo, JP;
Kazunori Kataoka, Tokyo, JP;
Stephanie Lee, Tokyo, JP;
Yasutaka Anraku, Tokyo, JP;
Aya Koide, Hino, JP;
Mitsuru Sakai, Tokyo, JP;
QiuMing Yu, Hino, JP;
THE UNIVERSITY OF TOKYO, Tokyo, JP;
TEIJIN LIMITED, Osaka-Shi, JP;
Abstract
The purpose of the present invention is to provide an electrostatically bonded vesicle which bears disulfide bonds or thiol groups. The present invention relates to a vesicle having a membrane which is formed from both a first polymer of (a) or (b) and a second polymer of (c) or (d) (with the proviso that a combination of (b) and (d) is excepted) and in which the cationic segment and anionic segment of the polymers are partially crosslinked. First polymer: (a) a block copolymer (I) having both an electrically non-charged hydrophilic segment and a cationic segment, (b) an amino acid polymer (I) having a cationic segment. Second polymer: (c) a block copolymer (II) having both an electrically non-charged hydrophilic segment and an anionic segment, (d) an amino acid polymer (II) having an anionic segment.