发明名称 |
Air-activated organotin catalysts for polyurethane synthesis |
摘要 |
This invention relates to an organotin-based catalyst system for polyurethane synthesis that is useful in coatings applications. The catalyst has low activity in the absence of oxygen. When a coating mixture comprising the catalyst is sprayed and/or applied to a substrate as a thin film in air, the catalyst is activated. For solvent-based refinish systems comprising hydroxyl and isocyanate species at high solids levels, the catalyst system therefore provides extended viscosity stability, i.e., pot life.
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申请公布号 |
US7977446(B2) |
申请公布日期 |
2011.07.12 |
申请号 |
US20050154224 |
申请日期 |
2005.06.16 |
申请人 |
E. I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
FELDMAN JERALD;MCLAIN STEPHAN J. |
分类号 |
C08G18/08;C08G18/00;C08G18/24;C08G18/42;C08G18/79;C09D175/06 |
主分类号 |
C08G18/08 |
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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