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Title:
TRANSPARENT GEL AND CONTACT LENS COMPRISING THE SAME
Document Type and Number:
WIPO Patent Application WO/2006/077778
Kind Code:
A1
Abstract:
Disclosed is a transparent gel comprising a copolymer having a polysiloxane backbone and a polycarbonate backbone and a hydrophilic polymer produced by polymerizing a hydrophilic monomer, the gel having an internetwork structure formed from the copolymer and the hydrophilic polymer. More specifically, the transparent gel is a silicone-containing resin which is easy to synthesize and purify and has excellent properties including gel strength, transparency, oxygen permeability and index of refraction. The transparent gel can be used as a culture substrate for a cell or organ, in a container used for storage purpose, or as a material for ophthalmic use.

Inventors:
Nakada, Kazuhiko c/o MENICON CO. LTD. (Central research laboratories, 1-10, Takamoridai 5-chome, Kasugai-sh, Aichi 32, 48700, JP)
Nakase, Takahito c/o MENICON CO. LTD. (Central research laboratories, 1-10, Takamoridai 5-chome, Kasugai-sh, Aichi 32, 48700, JP)
Adachi, Takahiro c/o MITSUBISHI GAS CHEMICAL COMPANY (INC. Kashima Plant, 35, Towada, Kamisu-machi, Kashima-gu, Ibaraki 02, 31401, JP)
Yamamoto, Akira c/o Shin-Etsu Chemical Co. Ltd. (Silicone Electronics Materials Research Center, 1-10, Oaza Hitomi Matsuida-machi, Usui-gu, Gunma 00, 37902, JP)
Minemura, Masahiko c/o Shin-Etsu Chemical Co. Ltd. (Silicone Electronics Materials Research Center, 1-10, Oaza Hitomi Matsuida-machi, Usui-gu, Gunma 00, 37902, JP)
Application Number:
PCT/JP2006/300364
Publication Date:
July 27, 2006
Filing Date:
January 13, 2006
Export Citation:
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Assignee:
MENICON CO., LTD. (21-19, Aoi 3-chome Naka-ku, Nagoya-sh, Aichi 06, 46000, JP)
MITSUBISHI GAS CHEMICAL COMPANY, INC. (5-2 Marunouchi 2-chome, Chiyoda-ku Tokyo, 24, 10083, JP)
Nakada, Kazuhiko c/o MENICON CO. LTD. (Central research laboratories, 1-10, Takamoridai 5-chome, Kasugai-sh, Aichi 32, 48700, JP)
Nakase, Takahito c/o MENICON CO. LTD. (Central research laboratories, 1-10, Takamoridai 5-chome, Kasugai-sh, Aichi 32, 48700, JP)
Adachi, Takahiro c/o MITSUBISHI GAS CHEMICAL COMPANY (INC. Kashima Plant, 35, Towada, Kamisu-machi, Kashima-gu, Ibaraki 02, 31401, JP)
Yamamoto, Akira c/o Shin-Etsu Chemical Co. Ltd. (Silicone Electronics Materials Research Center, 1-10, Oaza Hitomi Matsuida-machi, Usui-gu, Gunma 00, 37902, JP)
Minemura, Masahiko c/o Shin-Etsu Chemical Co. Ltd. (Silicone Electronics Materials Research Center, 1-10, Oaza Hitomi Matsuida-machi, Usui-gu, Gunma 00, 37902, JP)
International Classes:
C08L69/00; C08F26/06; C08F220/56; C08G64/18; C08L39/04; C08L57/00; G02C7/04
Foreign References:
JPH08501504A
JPH05313104A
JPH02297426A
JP2005206699A
JP2002284871A
JPS4956643A
JP2004535598A
JPH06503103A
US5789483A
Other References:
See also references of EP 1840167A1
Attorney, Agent or Firm:
Asahina, Sohta (NS Building, 2-22 Tanimachi 2-chome, Chuo-k, Osaka-shi Osaka 12, 54000, JP)
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