发明名称 |
IMPROVED ITACONATE COPOLYMERIC COMPOSITIONS FOR CONTACT LENSES |
摘要 |
Copolymers useful as contact lens materials are the polymerization product (I)of a mixture comprising: (a) an itaconate; (b) a compound represented by formula (I), wherein each A is independently an activated unsaturated radical; each R is independently selected from the group consisting of a C1-C12 monovalent hydrocarbon radical, a C1-C12 monovalent hydrocarbon radical containing ether linkages, a halogen-substituted C1-C12 monovalent hydrocarbon radical, and a halogen-substituted C1-C12 monovalent hydrocarbon radical containing ether linkages; each R' is independently a C1-C22 divalent hydrocarbon radical; and n averages about 15 to about 50; (c) an ethylenically unsaturated organoxiloxane monomer; and (d) a hydrophilic monomer.
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申请公布号 |
CA2159327(C) |
申请公布日期 |
1999.03.02 |
申请号 |
CA19942159327 |
申请日期 |
1994.03.21 |
申请人 |
POLYMER TECHNOLOGY CORPORATION |
发明人 |
ELLIS, EDWARD J.;BONAFINI, JAMES A., JR.;OLSON, ALFRED P. |
分类号 |
G02C7/04;C08F220/06;C08F222/10;C08F230/08;C08F290/06;C08G77/20;G02B1/04;(IPC1-7):C08F283/12 |
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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