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    • 8. 发明授权
    • Brominated polstyrenic resins
    • 溴化聚苯乙烯树脂
    • US06232408B1
    • 2001-05-15
    • US09151193
    • 1998-09-10
    • Billie B. DadgarDonald E. BalhoffCharles H. KolichMeng-Sheng AoHomer C. Lin
    • Billie B. DadgarDonald E. BalhoffCharles H. KolichMeng-Sheng AoHomer C. Lin
    • C08F11208
    • C08F8/20C08F8/22C08F12/08C08F12/00
    • Novel brominated styrenic polymers have an ionic bromine content of 2000 ppm or less, and one or more of the following additional characteristics: (a) a TGA temperature for 1% weight loss which is 340° C. or higher, and a chlorine content, if any, of less than about 700 ppm Cl (b) an actual Mw which is within about 20% of the calculated theoretical Mw, the theoretical Mw being based upon the actual bromine content of the brominated styrenic polymer and the Mw of the styrenic polymer reactant used to produce the brominated styrenic polymer; and (c) essentially no content of impurities selected from the group consisting of ethylene dichloride, bromodichloroethane, dibromochloroethane, dibromodichloroethane, and tribromochloroethane. Such flame retardant polymers exhibit superior performance qualities during use, especially in thermoplastics such as glass-filled polyesters and glass-filled nylons.
    • 新型溴化苯乙烯类聚合物的离子溴含量为2000ppm以下,以及一种或多种以下附加特性:(a)1%重量损失的TGA温度为340℃以上,氯含量, 如果有的话,小于约700ppm Cl(b)实际的Mw在计算的理论Mw的约20%内,理论Mw基于溴化苯乙烯类聚合物的实际溴含量和苯乙烯聚合物的Mw 用于生产溴化苯乙烯聚合物的反应物; 和(c)基本上不含有选自二氯乙烷,溴二氯乙烷,二溴氯乙烷,二溴二氯乙烷和三溴氯乙烷的杂质含量。 这种阻燃聚合物在使用过程中表现出优异的性能,特别是在热塑性塑料如玻璃填充聚酯和填充玻璃的尼龙中。
    • 10. 发明授权
    • Polymer compositions containing brominated polystyrenic resins
    • 含有溴化聚苯乙烯树脂的聚合物组合物
    • US06235831B1
    • 2001-05-22
    • US09151110
    • 1998-09-10
    • Jon S. ReedSusan D. LandryDaniel A. De SchryverBillie B. DadgarDonald E. BalhoffCharles H. KolichMeng-Sheng AoHomer C. Lin
    • Jon S. ReedSusan D. LandryDaniel A. De SchryverBillie B. DadgarDonald E. BalhoffCharles H. KolichMeng-Sheng AoHomer C. Lin
    • C08L4700
    • C08L67/02C08F8/20C08F8/22C08L25/00C08F12/08C08F12/00
    • A polyalkylene terephthalate polymer, such as polyethylene terephthalate, polybutylene terephthalate, blends or copolymers thereof, and analogous polyester-type engineering thermoplastics, with which has been blended a flame retardant amount of brominated styrenic polymer, such as brominated polystyrene, that, prior to blending, is characterized by (a) containing less than 700 ppm Cl and having a TGA temperature for 1% weight loss of 340° C. or higher; and/or (b) having an actual Mw which is within about 20%, and preferably within about 10%, of its calculated theoretical Mw, the theoretical Mw being based upon the actual bromine content of the brominated styrenic polymer and the Mw of the styrenic polymer reactant used to produce the brominated styrenic polymer; and/or (c) being essentially free of each of the following impurities: (1) ethylene dichloride, (2) bromodichloroethane, (3) dibromochloroethane, (4) dibromodichloroethane, and (5) tribrormochloroethane. These compositions most preferably also further comprise a reinforcing amount of glass fiber and/or a flame retardant synergist dispersed therein. It is now possible to provide polyalkylene terephthalate compositions that have a UL-94 rating of V-O using both {fraction (1/16)}-inch test specimens and {fraction (1/32)}-inch test specimens, and that have superior electrical resistance characteristics as reflected by a higher comparative tracking index and greater melt stability as determined by capillary rheometry.
    • 聚对苯二甲酸亚烷基酯聚合物,例如聚对苯二甲酸乙二醇酯,聚对苯二甲酸丁二醇酯,它们的共混物或共聚物,以及类似的聚酯型工程热塑性塑料,其中共混有阻燃量溴化苯乙烯聚合物如溴化聚苯乙烯, 的特征在于(a)含有少于700ppm Cl且具有340℃或更高的1%重量损失的TGA温度; 和/或(b)具有在其计算的理论Mw的约20%,优选在约10%内的实际Mw,理论Mw基于溴化苯乙烯类聚合物的实际溴含量和 用于生产溴化苯乙烯聚合物的苯乙烯聚合物反应物; 和/或(c)基本上不含以下各种杂质:(1)二氯乙烷,(2)溴二氯乙烷,(3)二溴氯乙烷,(4)二溴二氯乙烷和(5)三溴氯乙烷。 这些组合物最优选还包含分散在其中的增强量的玻璃纤维和/或阻燃增效剂。 现在可以使用{分数(1/16)} - 英寸试样和{部分(1/32)} - 英寸试样提供具有UL-94等级VO的聚对苯二甲酸亚烷基酯组合物,并且具有优异的 电阻特性由较高的比较跟踪指数反映,并且通过毛细血管流变测定确定更高的熔体稳定性。