发明授权
- 专利标题： Flexible, combustion-modified, polyurethane foams
- 专利标题（中）： 柔性，燃烧改性的聚氨酯泡沫
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申请号： US893472申请日： 1992-06-02
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公开(公告)号： US5229427A公开(公告)日： 1993-07-20
- 发明人: Edmund J. Madaj
- 申请人： Edmund J. Madaj
- 申请人地址： PA Pittsburgh
- 专利权人： Miles Inc.
- 当前专利权人： Miles Inc.
- 当前专利权人地址： PA Pittsburgh
- 主分类号： C08L75/00
- IPC分类号： C08L75/00 ; C08G18/38 ; C08G18/48 ; C08G18/76 ; C08K5/3492 ; C08K5/51
摘要：
Polyurethane foams of excellent properties are produced by reacting a) one or more polyether polyols, b) a polymethylene poly(phenyl isocyanate) having a methylene-bis(phenyl isocyanate) content of from 70 to 77% by weight, c) melamine, d) a phosphorous containing compound and d) water as the blowing agent. The isocyanate must have a specific 4,4' to 2,4'-isomer ratio and the amounts of melamine and phosphorous must be within narrowly defined limits.
公开/授权文献
- US5871649A Affinity membrane system and method of using same 公开/授权日：1999-02-16
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