利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

5 条记录 (耗时 0.021 秒)

    Carbonate polymer resins containing low volatility aromatic phosphate ester compounds
    2.
    发明授权
    Carbonate polymer resins containing low volatility aromatic phosphate ester compounds 失效
    含低挥发性芳族磷酸酯化合物的碳酸酯聚合物树脂

    公开(公告)号：US5663280A

    公开(公告)日：1997-09-02

    申请号：US636291

    申请日：1996-04-23

    申请人： Samuel A. Ogoe ,  Nancy J. Schrock ,  Jimmie D. Spoon

    发明人： Samuel A. Ogoe ,  Nancy J. Schrock ,  Jimmie D. Spoon

    IPC分类号： C08K5/43 ,  C08K5/521 ,  C08K5/523 ,  C08L27/18 ,  C08L69/00 ,  C08G64/00

    CPC分类号： C08K5/43 ,  C08K5/523

    摘要： Disclosed is a carbonate polymer composition comprising (a) a carbonate polymer having a weight average molecular weight of from about 20,000 to about 40,000 and (b) from greater than about 0.1 to less than about 1.0 weight percent (based on carbonate polymer composition weight) low volatility aromatic phosphate ester compound, and optionally (c) from about 0.001 to about 0.1 weight percent (based on carbonate polymer compositions weight) of an alkali metal salt having a pH of at least about 7. Preferably the low volatility aromatic phosphate ester is selected from the group of aromatic phosphate ester oligomer compounds or haloaryl phosphate compounds. It has been found to be preferable to use a low volatility aromatic phosphate ester which experiences a weight loss of no more than 5 weight percent at 250.degree. C. when heated to a temperature of 500.degree. C. in a thermogravimetric analysis (TGA) at a heating rate of 20.degree. C. per minute, more preferably no more than 40 percent at 300.degree. C. It has been found that these compositions surprisingly achieve the Underwriters Laboratory (UL-94) V-2 rating without significantly sacrificing the otherwise good combinations of properties of carbonate polymer resins.

    摘要翻译： 公开了一种碳酸酯聚合物组合物，其包含（a）重均分子量为约20,000至约40,000的碳酸酯聚合物和（b）大于约0.1至小于约1.0重量％（基于碳酸酯聚合物组合物重量） 低挥发性芳族磷酸酯化合物，以及任选地（c）约0.001至约0.1重量％（基于碳酸酯聚合物组合物重量）的pH为至少约7的碱金属盐。优选地，低挥发性芳族磷酸酯是 选自芳族磷酸酯低聚物化合物或卤代芳基磷酸酯化合物。 已经发现，优选使用低挥发性芳族磷酸酯，当在热重分析（TGA）中加热到500℃时，在250℃下经历重量损失不超过5重量％ 加热速度为每分钟20℃，更优选在300℃下更优选不超过40％。已经发现，这些组合物令人惊讶地实现了保险商实验室（UL-94）V-2等级，而没有显着牺牲其他良好 碳酸酯聚合物树脂的性能组合。