发明名称 |
Catalyst systems containing dimethylamino ether mono-ols for polyurethane foam formation |
摘要 |
Cellular urethane polymers are provided by effecting the reaction of an organic polyol reactant comprising a polyether polyol and an organic polyisocyanate reactant in the presence of a blowing agent and a catalyst system comprising a tertiary-dimethylamino ether mono-ol. In the dimethylamino ether mono-ols employed as catalysts in the practice of the invention, the tertiary-dimethylamino group and the hydroxyl group are positioned beta to a common acyclic ether oxygen atom or to different acyclic ether oxygen atoms which in turn are positioned beta to one another. The said dimethylamino ether mono-ols are versatile, low odor catalysts and are useful in forming cellular urethane polymers ranging from all water-blown flexible polyether foam to all fluorocarbon-blown rigid foam including semi-flexible and high-resilience foam products. Especially preferred for use in the practice of the invention are 2-(2-dimethylaminoethoxy)ethanol and 2-[2-(2-dimethylaminoethoxy)ethoxy]ethanol either as such or in combination with other catalysts including other tertiary-amine components and/or organic compounds of tin. Also provided are blended catalyst systems comprising said dimethylamino ether mono-ols.
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申请公布号 |
US4122038(A) |
申请公布日期 |
1978.10.24 |
申请号 |
US19770819331 |
申请日期 |
1977.07.27 |
申请人 |
UNION CARBIDE CORPORATION |
发明人 |
SANDNER, MICHAEL RAY;DUFFY, ROBERT DONOVAN |
分类号 |
C08G18/00;C08G18/18;C08G18/28;(IPC1-7):B01J27/24;B01J27/26 |
主分类号 |
C08G18/00 |
代理机构 |
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