申请人:FMC Corporation
公开号:US04446265A1
公开(公告)日:1984-05-01
A flame retardant polyphenylene ether-styrene resin composition having a UL-94 rating of V-1 or better, a heat distortion temperature greater than 92.degree. C. and a melt viscosity at 260.degree. C. of less than 200 pascal second is obtained by incorporating with said polyphenylene ether-styrene resin composition from about 4 to about 7 parts per hundred of a triaryl phosphate ester and from about 0.5 to about 3 parts per hundred of a 3-hydroxyalkyl phosphine oxide having the formula: ##STR1## wherein R.sub.1 may be the same or a different radical selected from the group consisting of hydrogen and the methyl radicals, R.sub.2 is a radical of 4 to 8 carbon atoms and n is either zero or one.
通过将约4到7份每百份的三芳基磷酸酯和约0.5到3份每百份的3-羟基烷基膦氧化物(具有以下公式:其中R1可以是氢原子或甲基基团,R2是4到8个碳原子的基团,n为零或一)与聚苯醚-苯乙烯树脂组合,可以获得具有UL-94等级V-1或更好,热变形温度大于92°C且在260°C下熔融粘度小于200帕斯秒的阻燃聚苯醚-苯乙烯树脂组合。