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. 08, 2012
Filed:
Jan. 13, 2006
Kazuhiko Nakada, Kasugai, JP;
Takahito Nakase, Kasugai, JP;
Takahiro Adachi, Ibaraki, JP;
Akira Yamamoto, Gunma, JP;
Masahiko Minemura, Gunma, JP;
Kazuhiko Nakada, Kasugai, JP;
Takahito Nakase, Kasugai, JP;
Takahiro Adachi, Ibaraki, JP;
Akira Yamamoto, Gunma, JP;
Masahiko Minemura, Gunma, JP;
Mitsubishi Gas Chemical Company, Inc., Tokyo, JP;
Menicon Co., Ltd., Aichi, JP;
Abstract
A transparent gel is disclosed which has an interpenetrating polymer network of a copolymer containing a polysiloxane structure and a polycarbonate structure and a hydrophilic polymer obtained by polymerizing a hydrophilic monomer. The transparent gel is useful as a cultivation substrate, a container for storage and an ophthalmic material, comprising an easily synthesizable and purifiable silicon-containing resin, wherein a gel strength, transparency, oxygen permeability, birefringence and other characteristics are excellent.