发明名称 |
POLYESTER RESIN-BASED HIGH INDEX OPHTHALMIC LENSES HAVING IMPROVED OPTICAL UNIFORMITY AND/OR TINTABILITY |
摘要 |
Unsaturated polyester resin-based compositions that are modified for unexpected improvement in uniform, low optical distortion and/or improved tint speed by the addition of one or more additives selected from an allylic ester and/or an acrylic monomer, together with an exotherm depressant, making the modified polyester resin-based composition commercially viable for casting ophthalmic lenses. The additive(s) and exotherm depressant are useful to modify the polyester for sufficient enhancement of optical distortion and/or tint speed such that any unsaturated polyester resin, capable of producing a clear, low color casting, will be improved sufficiently to provide a composition having the required properties for an ophthalmic lens.
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申请公布号 |
WO9610760(A1) |
申请公布日期 |
1996.04.11 |
申请号 |
WO1995US11623 |
申请日期 |
1995.09.14 |
申请人 |
SIGNET ARMORLITE, INC. |
发明人 |
ENGARDIO, THOMAS, J.;DALSIN, PHILIP, D.;KANG, DAE, KI;LEE, JEAN, S. |
分类号 |
G02C7/02;C08F2/40;C08F283/01;C08F299/04;C08K5/00;C08K5/01;C08K5/1515;C08K5/38;G02B1/04;(IPC1-7):G02B1/04;C08K5/15 |
主分类号 |
G02C7/02 |
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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