发明名称 |
Improved method of forming shaped hydrogel articles including contact lenses using inert, displaceable diluents. |
摘要 |
<p>Shaped hydrogel articles such as soft contact lenses are prepared by the steps of: (1) molding or casting a polymerization mixture comprising: (a) a monomer mixture comprising a major proportion of one or more hydrophilic monomers such as 2-hydroxyethyl methacrylate, and one or more cross-linking monomers; and (b) an inert, displaceable diluent selected from the group consisting of: (i) ethoxylated alkyl glucoside; (ii) ethoxylated bisphenol A; (iii) polyethylene glycol; (iv) mixture of propoxylated and ethoxylated alkyl glucoside; (v) single phase mixture of ethoxylated or propoxylated alkyl glucoside and C2-12 dihydric alcohol; (vi) adduct of epsilon -caprolactone and C2-6alkanediols and triols; (vii) ethoxylated C3-6alkanetriol; and (viii) mixtures of one or more of (i) through (vii), under conditions to polymerize said monomer mixture to produce a shaped gel of a copolymer of said monomers and said diluent; and (2) thereafter replacing said diluent with water. xt</p> |
申请公布号 |
EP0642039(A2) |
申请公布日期 |
1995.03.08 |
申请号 |
EP19940305394 |
申请日期 |
1994.07.21 |
申请人 |
JOHNSON & JOHNSON VISION PRODUCTS, INC. |
发明人 |
NUNEZ, IVAN M.;MOLOCK, FRANK F.;ELLIOTT, LAURA D.;FORD, JAMES D. |
分类号 |
C08J5/00;B29D11/02;C08F2/00;C08F2/44;C08F2/48;C08L71/02;G02B1/04;(IPC1-7):G02B1/04;B29D11/00 |
主分类号 |
C08J5/00 |
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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