发明名称 |
POLYURETHANES MADE USING ZINC CATALYSTS |
摘要 |
Polyisocyanate-based polymers are formed by curing a reaction mixture containing at least one polyisocyanate and at least one isocyanate-reactive compound having at least two isocyanate-reactive groups in the presence of a zinc catalyst that contains at least one zinc atom associated with a polydentate ligand that contains at least one nitrogen-containing complexing site. |
申请公布号 |
US2015376326(A1) |
申请公布日期 |
2015.12.31 |
申请号 |
US201514849546 |
申请日期 |
2015.09.09 |
申请人 |
Keaton Richard;Margl Peter;Romer Duane;Wilmot Nathan;Duggal Rajat;Chamsarkar Rashmi |
发明人 |
Keaton Richard;Margl Peter;Romer Duane;Wilmot Nathan;Duggal Rajat;Chamsarkar Rashmi |
分类号 |
C08G18/76;C08G18/48;C08G18/32;C08G18/22 |
主分类号 |
C08G18/76 |
代理机构 |
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代理人 |
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主权项 |
1. A process for preparing a polyisocyanate-based polymer, comprising forming a reaction mixture containing at least one polyisocyanate, at least one isocyanate-reactive compound having at least two isocyanate-reactive groups and at least one zinc catalyst, and then curing the reaction mixture to form a polymer, wherein the zinc catalyst contains at least one zinc atom associated with a polydentate organic ligand that contains at least two complexing sites, of which at least one is nitrogen-containing, wherein the ligand compound is
a) a β-imino alcohol or enol; b) a β-enamino alcohol; c) β-amino keto or β-enamino keto or ester compound; d) a β-diketiminate compound; e) a β-diamine compound. |
地址 |
Pearland TX US |