发明名称 |
PROCESS FOR THE MANUFACTURE OF A MOLDING |
摘要 |
The present invention relates to a process for the manufacture of a molding, which comprises the following steps: a) providing at least one prepolymer comprising one or more crosslinkable groups, wherein the prepolymer is an amphiphilic segmented copolymer comprising at least one hydrophobic segment A and one hydrophilic segment B; b) preparing a mesophase of the prepolymer which is at least partly bicontinuous; c) introducing the mesophase obtained into an ophthalmic mold; d) triggering of the crosslinking; and e) opening the mold such that the molding can be removed. The process of the invention is particularly suited for the manufacture of membranes and ophthalmic moldings such as contact lenses.
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申请公布号 |
CA2300810(A1) |
申请公布日期 |
1999.03.11 |
申请号 |
CA19982300810 |
申请日期 |
1998.08.31 |
申请人 |
NOVARTIS AG |
发明人 |
LOHMANN, DIETER;BARON, RICHARD CARLTON;MEIER, WOLFGANG PETER;HIRT, THOMAS |
分类号 |
G02C7/04;A61F2/14;B29D11/00;G02B1/04;(IPC1-7):C08J3/24 |
主分类号 |
G02C7/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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