申请人:E. I. Du Pont de Nemours and Company
公开号:US03996276A1
公开(公告)日:1976-12-07
Polycyclic phosphorous triamides of the formula ##STR1## in which R.sup.1 and R.sup.2, alike or different, are alkylene of 2 to 6 carbons; R.sup.3 and R.sup.4, alike or different, are alkyl of 1 to 8 carbons, cycloalkyl of 5 to 8 carbons, or aralkyl where the aryl group is of 6 to 12 carbons and the alkyl is of 1 to 8 carbons; or R.sup.3 and R.sup.4 are joined together to form an alkylene group of 2 to 6 carbons which may be interrupted by 1. a ##STR2## group where Q is hydrogen or alkyl of 1 to 18 carbons, or 2. ONE OR TWO --O-- linkages; there are at least 2 carbons between each two hetero atoms in the outer ring system, and when the triamide is tricyclic, at least one of the chains between the nitrogens linked to phosphorus contains at least three atoms Are useful as flame retardants for cotton.
多环磷三酰胺的化学式为##STR1##其中R.sup.1和R.sup.2,无论相同还是不同,都是2到6个碳原子的烷基;R.sup.3和R.sup.4,无论相同还是不同,都是1到8个碳原子的烷基,5到8个碳原子的环烷基,或芳基烷基,其中芳基含有6到12个碳原子,烷基含有1到8个碳原子;或者R.sup.3和R.sup.4相互连接形成一个2到6个碳原子的烷基,该烷基可能被1. 一个##STR2##基团(其中Q是氢或1到18个碳原子的烷基)或2. 一个或两个--O--连接所打断;在外环系统中每两个杂原子之间至少有2个碳原子,当三酰胺是三环的时候,连接到磷的氮原子之间的链中至少有一个包含至少三个原子。这些化合物可作为棉花的阻燃剂。