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:
May. 19, 2015
Filed:
Mar. 31, 2011
Masaki Baba, Kasugai, JP;
Tsuyoshi Watanabe, Kasugai, JP;
Susumu Ogawa, Kasugai, JP;
Daisuke Sutou, Kasugai, JP;
Yuya Motoyama, Kasugai, JP;
Eri Miyasaka, Kasugai, JP;
Masaki Baba, Kasugai, JP;
Tsuyoshi Watanabe, Kasugai, JP;
Susumu Ogawa, Kasugai, JP;
Daisuke Sutou, Kasugai, JP;
Yuya Motoyama, Kasugai, JP;
Eri Miyasaka, Kasugai, JP;
MENICON CO., LTD., Nagoya-shi, JP;
Abstract
Provided is a polymer material having superior water wettability and lubricity, and enabling persistence of the same by allowing the surfactant to be retained by the polymer material so as not to be gradually released. The present invention is directed to a polymer material including: [I] a polymer having a constitutional unit derived from (A) a polymerizable compound having an acryloyloxy group and not having a silicon atom; and [II] a surfactant. The content of the surfactant [II] is preferably 0.05% by mass or greater and 1% by mass or less. The surfactant [II] is preferably a nonionic surfactant having a polyoxyethylene group.