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    • 71. 发明授权
    • Flame retardants with high halogen content and low viscosity
    • 阻燃剂,卤素含量高,粘度低
    • US07381354B2
    • 2008-06-03
    • US11751255
    • 2007-05-21
    • Elbert F. FeskeNelson E. ClarkArthur G. MackJeffrey Todd Aplin
    • Elbert F. FeskeNelson E. ClarkArthur G. MackJeffrey Todd Aplin
    • C09K21/08
    • C08K5/1539C08G2101/00C08K5/0066C08K5/053C08K5/11C08K5/1515
    • Flame retardant formulations comprised of at least one bromine-containing polyol are produced by a process which comprises: A) heating a mixture formed from components comprised of (i) tetrabromophthalic anhydride, (ii) at least one aliphatic polyol, and (iii) at least one liquid straight chain aliphatic diester of a straight-chain alkane dicarboxylic acid to form an intermediate composition; and B) contacting all or a portion of the intermediate composition one or more times with (iv) at least one alkylene oxide that results in the formation of a liquid product formulation, and optionally, removing any excess alkylene oxide present; the amounts of (i), (ii), (iii), and (iv) used being proportioned to form a formulation having a bromine content of at least about 40 wt %, a viscosity at 25° C. of about 20,000 cps or less, and an acid number as determinable by aqueous sodium hydroxide titration and expressed in terms of potassium hydroxide, of less than about 1 milligram of KOH per gram of the formulation.
    • 由至少一种含溴多元醇组成的阻燃剂配方是通过以下方法生产的:A)加热由(i)四溴邻苯二甲酸酐,(ii)至少一种脂族多元醇组成的组分和(iii) 至少一种直链烷烃二羧酸的液体直链脂族二酯以形成中间体组合物; 和B)使中间组合物的全部或部分一次或多次与(iv)至少一种烯化氧接触,导致形成液体产物制剂,并任选地除去存在的任何过量的环氧烷烃; 使用的(i),(ii),(iii)和(iv)的量成比例地形成溴含量为至少约40重量%,25℃下的粘度为约20,000cps或 更少,并且酸值可以通过氢氧化钠水溶液滴定测定,以氢氧化钾表示,每克制剂小于约1毫克KOH。