Rigid polyurethane foams with reduced flammability based on new phosphorus-and nitrogen-containing diols

✍ Scribed by C. Sivriev; L. żabski; G. Borissov

• Publisher: Elsevier Science
• Year: 1992
• Tongue: English
• Weight: 308 KB
• Volume: 28
• Category: Article
• ISSN: 0014-3057
• DOI: 10.1016/0014-3057(92)90229-u

✦ Synopsis

AMtract--Phosphorus-and nitrogen-containing diols (aminomethylphosphine oxides) have been used to prepare rigid polyurethane foams (PUF) with various phosphorus contents. Some characteristic properties of the PUF have been examined. The effects of structure and the amount of phosphorus-and nitrogen-containing diols on properties of the polyurethanes, especially on their resistance to combustion, have been studied. The phosphorus-and nitrogen-containing diols are effective flame retardants for improving the resistance to combustion of rigid PUF (ASTM D-2863 and ASTM D-1692). It is also concluded that the phosphorus present in these diols is up to a certain extent more effective than the phosphorus present in the commercially available diol Fyrol 6.