发明名称 |
POLYURETHANE UREA-CONTAINING COMPOSITIONS AND OPTICAL ARTICLES AND METHODS FOR PREPARING THEM |
摘要 |
A composition for the preparation of a transparent, non-elastomeric optical article is provided, the composition including: (1) a polyisocyanate component containing one or more different polyisocyanates; and (2) a component that is reactive with isocyanates, including: (a) optionally at least one polyol having a number average molecular weight greater than 500; (b) (i) at least one polyol and/or polythiol and (ii) at least one compound containing both amine and hydroxyl functional groups, wherein the compound (ii) has a number average molecular weight less than 500; and optionally (3) a urethanation catalyst. Multi-step and one-pot methods of preparing a cured, non-elastomeric polyurethane-containing optical article are also provided. |
申请公布号 |
WO2015088502(A1) |
申请公布日期 |
2015.06.18 |
申请号 |
WO2013US74262 |
申请日期 |
2013.12.11 |
申请人 |
PPG INDUSTRIES OHIO, INC. |
发明人 |
BOJKOVA, NINA V.;GRAHAM, MARVIN J.;KRYGER, MATTHEW J.;MENTA, FEDERICO |
分类号 |
C08G18/10;C08G18/32;C08G18/38;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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