发明名称 |
IMPACT RESISTANT POLYUREAURETHANE LENS |
摘要 |
The present invention relates to a polyether-containing polyureaurethane lens. The polyureaurethane lens can include a prepolymer comprising a polyisocyanate and a polyether-containing polyol material that can be reacted with an amine-containing curing agent to produce the polyureaurethane lens of the present invention. The polyether-containing polyureaurethane lens can have a hard coating on both surfaces and a maximum center thickness of 2.2 mm in a piano configuration, with an impact resistance of at least 148 feet per second as defined by The High Impact Test. |
申请公布号 |
US2007155940(A1) |
申请公布日期 |
2007.07.05 |
申请号 |
US20070685794 |
申请日期 |
2007.03.14 |
申请人 |
PPG INDUSTRIES OHIO, INC. |
发明人 |
NAGPAL VIDHU J.;MCDONALD WILLIAM H.;SMITH ROBERT A. |
分类号 |
C08G18/00;C08G18/12;C08G18/48;C08G18/66;C08G18/75;G02B1/04 |
主分类号 |
C08G18/00 |
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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