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    • 1. 发明授权
    • Polypropylene block copolymer resin and compositions
    • 聚丙烯嵌段共聚物树脂和组合物
    • US5332789A
    • 1994-07-26
    • US974591
    • 1993-02-26
    • Akira TanakaMasaru NakagawaHideo KusuyamaSueto MiyazakiTatsuya Housaki
    • Akira TanakaMasaru NakagawaHideo KusuyamaSueto MiyazakiTatsuya Housaki
    • C08F110/06C08F210/06C08F297/08C08L51/06
    • C08L51/06C08F210/06C08F297/083C08F110/06Y10S526/905
    • Polypropylene based resins and compositions comprising the resin having extremely high stiffness, heat resistance and impact strength, with these properties being well-balanced, are provided. The polypropylene based resins are characterized by comprising:(1) a propylene polymer having a content of alpha-olefin other than propylene of not more than 4 mole percent, and the following properties (2), (3) and (4):(2) a pentad fraction (mmmm fraction) measured by .sup.13 C-NMR of not less than 96.0 percent,(3) a main elution fraction peak position of not less than 118.0.degree. C. and a peak half value width of less than 4.0, these values being measured by the temperature raising separation method, and(4) an intrinsic viscosity of not less than 0.5 dl/g, but not more than 5.0 dl/g; and,(5) a rubber content measured by pulse NMR of more than 25 percent.
    • PCT No.PCT / JP92 / 00807 Sec。 371日期:1993年2月26日 102(e)日期1993年2月26日PCT提交1992年6月25日PCT公布。 出版物WO93 / 00375 日本1993年1月7日。提供了包含具有非常高的刚度,耐热性和冲击强度的树脂的聚丙烯基树脂和组合物,这些性能是均衡的。 聚丙烯类树脂的特征在于包括:(1)具有不大于4摩尔%的丙烯以外的α-烯烃含量的丙烯聚合物和以下性质(2),(3)和(4):( 2)通过13 C-NMR测定的五元组分数(mmmm分数)不小于96.0%,(3)主洗脱分数峰位置不低于118.0℃,峰值半值宽度小于4.0,这些 通过升温分离法测定的值,(4)特性粘度为0.5dl / g以上,5.0dl / g以下, 和(5)通过脉冲NMR测量的橡胶含量超过25%。
    • 2. 发明授权
    • Polyarylene sulfide from aromatic compound having at least three
functional groups
    • 具有至少三个官能团的芳族化合物的聚芳硫醚
    • US5231163A
    • 1993-07-27
    • US746819
    • 1991-08-15
    • Wataru KosakaMinoru SengaNorio OgataTatsuya Housaki
    • Wataru KosakaMinoru SengaNorio OgataTatsuya Housaki
    • C08G75/02C08K7/14
    • C08G75/025C08G75/0222C08G75/0231C08K7/14
    • A polyarylene sulfide has an inherent viscosity [.eta..sub.i n h ] of 0.1 to 0.5 dl/g, a weight-average molecular weight of 1.times.10.sup.4 to 2.times.10.sup.5 ; a ratio of the inherent viscosity [.eta..sub.i n h ] to a calculated viscosity [.eta.].sub.calc ([.eta..sub.i n h /[.eta.].sub.calc) of 0.4/1 to 0.8/1; and a degree of whiteness of 50 or higher when measured in accordance with whiteness testing procedures (JIS P8123). The polyarylene sulfide is prepared by reaction by contacting at least one member of a metallic sulfide (A) selected from an alkali metal sulfide and an alkali metal hydrosulfide with a dihalogen aromatic compound (B) and an aromatic compound (C) having three or more than three functional groups in a polar solvent in a molar ratio of the dihalogen aromatic compound (B) to the metallic sulfide (A) [(B)/(A)] ranging from 1.035/1 to 1.300/1 and in a molar ratio of the aromatic compound (C) to the dihalogen aromatic compound (B) [(C)/(B)] ranging from 0.003/1 to 0.05/1.A polyarylene sulfide resin composition contains the polyarylene sulfide having the above properties and and at least one member of a filler selected from a fiber filler and a powdery or granular filler.The polyarylene sulfide resin composition has the mechanical strength, heat resistance, long-term stability, and chemical resistance superior to the polyarylene sulfide.
    • 聚芳硫醚的特性粘度[η]为0.1〜0.5dl / g,重均分子量为1×10 4〜2×105; 特性粘度[η] h与计算出的粘度η(h /η/ calc)的比值为0.4 / 1至0.8 / 1; 并且根据白度测试程序(JIS P8123)测量时白度为50或更高。 通过使选自碱金属硫化物和碱金属氢硫化物的金属硫化物(A)的至少一种与二卤代芳香族化合物(B)和具有三个以上的碱金属硫化物的芳香族化合物(C)接触而使反应来制备聚芳硫醚 在极性溶剂中的三官能团,二卤代芳香族化合物(B)与金属硫化物(A)[(B)/(A)]的摩尔比为1.035 / 1〜1.300 / 1,摩尔比 的芳族化合物(C)与二卤代芳香族化合物(B)[(C)/(B)]的比例为0.003 / 1〜0.05 / 1。 聚芳硫醚树脂组合物含有具有上述性能的聚芳硫醚和至少一种选自纤维填料和粉末或颗粒填料的填料。 聚芳硫醚树脂组合物具有优于聚芳硫醚的机械强度,耐热性,长期稳定性和耐化学性。