发明名称 |
PROCESS FOR PRODUCING FLEXIBLE POLYURETHANE FOAM USING NATURAL OIL POLYOLS |
摘要 |
A composition and process useful to make flexible polyurethane foams and in particular flexible molded polyurethane foams is disclosed. The usage of dipolar aprotic liquids such as DMSO, DMI, sulfolane, N-methyl-acetoacetamide, N, N-dimethylacetoacetamide as well as glycols containing hydroxyl numbers OH#≦̸1100 as cell opening aides for 2-cyanoacetamide or other similar molecules containing active methylene or methine groups to make a polyurethane foam is also disclosed. The advantage of using cell opener aids results in a) no foam shrinkage; b) lower use levels of cell opener; c) foam performance reproducibility d) optimum physical properties. In addition, combining the acid blocked amine catalyst together with the cell opener and the cell opener aid results in a less corrosive mixture as well as provides a method that does not require mechanical crushing for cell opening. |
申请公布号 |
EP2729510(A1) |
申请公布日期 |
2014.05.14 |
申请号 |
EP20120735726 |
申请日期 |
2012.06.29 |
申请人 |
AIR PRODUCTS AND CHEMICALS, INC. |
发明人 |
BURDENIUC, JUAN JESUS;TOBIAS, JAMES DOUGLAS;KELLER, RENEE JO |
分类号 |
C08G18/30;C08G18/32;C08G18/48;C08G18/66;C08G18/76 |
主分类号 |
C08G18/30 |
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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