发明名称 |
IMPACT RESISTANT POLYUREAURETHANE AND METHOD OF PREPARATION |
摘要 |
<p>The present invention relates to a polyether-containing polyureaurethane. The polyureaurethane can include a prepolymer comprising a polyisocyanate and a polyether-containing polyol material. The prepolymer can be reacted with an amine-containing curing agent to produce the polyureaurethane of the present invention. In an embodiment, the polyether-containing polyureaurethane when at least partially cured and when tested as a lens with a hard coating on both surfaces having a maximum center thickness of 2.2 mm in a plano configuration, can have an impact resistance of at least 148 feet per second as defined by The High Impact Test.</p> |
申请公布号 |
EP1444281(B1) |
申请公布日期 |
2010.03.17 |
申请号 |
EP20020789634 |
申请日期 |
2002.11.14 |
申请人 |
PPG INDUSTRIES OHIO, INC. |
发明人 |
NAGPAL, VIDHU, J.;MCDONALD, WILLIAM, H.;SMITH, ROBERT, A. |
分类号 |
C08G18/10;C08G18/12;C08G18/48;C08G18/66;C08G18/75;G02B1/04 |
主分类号 |
C08G18/10 |
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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