Title:
多層材料
Document Type and Number:
Japanese Patent JP3650394
Kind Code:
B2
Abstract:
The invention is directed to a composite material, especially a biomedical device, e.g. an ophthalmic device, preferably a contact lens, with one or more wettable surfaces capable of holding a continous layer of aqueous fluid thereon which composite material comprises a bulk material and a hydrophilic coating characterized in that the hydrophilic coating consists of a carbohydrate attached covalently to reactive groups at the surface of the bulk material, either directly or via functional groups of an oligofunctional compound, said oligofunctional compound in turn having functional groups being capable of reacting with said reactive groups at the surface of the bulk material and with the carbohydrate, wherein said reactive groups are either inherently (a priori) present in the bulk material or wherein said reactive groups have been attached to the surface of the bulk material by a plasma surface preparation, as well as to a process of manufacture of such a composite material.
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Inventors:
Chatterlayer, Ronald Christopher
Die, rimming
Greeser, Hans Jorg
Li, Sheng
Gentech, Paul
Roman, dieter
Chabrechek, Peter
Die, rimming
Greeser, Hans Jorg
Li, Sheng
Gentech, Paul
Roman, dieter
Chabrechek, Peter
Application Number:
JP50775894A
Publication Date:
May 18, 2005
Filing Date:
September 08, 1993
Export Citation:
Assignee:
NOVARTIS AG
International Classes:
A61L27/00; A61L27/34; C08L101/16; G02B1/04; G02C7/04; (IPC1-7): A61L27/00; G02C7/04
Domestic Patent References:
| JP60259269A | ||||
| JP3188870A | ||||
| JP2500250A |
Foreign References:
| US5080924 |
Attorney, Agent or Firm:
Hajime Tsukuni
Fumio Shinoda
Fumio Shinoda