发明名称 |
Method for preparing silicone graft copolymers |
摘要 |
The invention relates to the preparation of graft copolymers from silicones. The method comprises subjecting an article such as a contact lens previously moulded from silicone resins to an UV irradiation step with radiations of wave-length from 1800 to 4000 angströms, in the presence of oxygen, and in a subsequent step contacting said article with an unsaturated monomer compound at a temperature sufficient to ensure the grafting of said compound on the silicone resin.
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申请公布号 |
US4229273(A) |
申请公布日期 |
1980.10.21 |
申请号 |
US19790041734 |
申请日期 |
1979.05.23 |
申请人 |
ESSILOR INTERNATIONAL COMPAGNIE GENERALE D'OPTIQUE |
发明人 |
WAJS, GEORGES H. |
分类号 |
G02C7/04;B29D11/00;C08F283/12;C08J7/18;G02B1/04;(IPC1-7):C08L51/08;C08F2/46 |
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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