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    • 7. 发明授权
    • Branched semi-crystalline high-C3 ethylene-propylene compositions
    • 支化半结晶高C3乙烯 - 丙烯组合物
    • US06573350B1
    • 2003-06-03
    • US09461797
    • 1999-12-15
    • Eric J. MarkelWeiqing WengArmenag H. Dekmezian
    • Eric J. MarkelWeiqing WengArmenag H. Dekmezian
    • C08F464
    • C08F210/16C08F4/65904C08F4/65908C08F4/65912C08F10/06C08F210/06Y10S526/943C08F4/65927C08F2500/03C08F2500/09
    • Branched ethylene-propylene compositions which have improved melt strength and shear thinning are provided. The weight average branching index g′ for the higher molecular weight region of the ethylene-propylene composition is less than 0.95. Additionally, a novel process is provided for efficiently producing a branched ethylene-propylene composition comprising: a) contacting propylene monomers and ethylene monomers in a reactor with an inert hydrocarbon solvent or diluent and a catalyst composition comprising one or more single site catalyst compounds capable of producing an ethylene-propylene polymer at a temperature from about 50° C. to about 180° C., wherein the ratio in the reactor of the propylene and ethylene monomers to the inert hydrocarbon solvent or diluent is less than 2.0, and further, wherein the propylene and ethylene monomers and the inert hydrocarbon solvent or diluent comprise no more than 90 percent of the total contents of the reactor; and b) recovering a branched ethylene-propylene composition, wherein the weight average branching index g′ for the higher molecular weight region of the ethylene-propylene composition is less than 0.95.
    • 提供了具有改善的熔体强度和剪切稀化的分支乙烯 - 丙烯组合物。 乙烯 - 丙烯组合物的较高分子量区域的重均分支指数g'小于0.95。 另外,提供了一种有效生产支化乙烯 - 丙烯组合物的新方法,其包括:a)使反应器中的丙烯单体和乙烯单体与惰性烃溶剂或稀释剂和包含一种或多种单中心催化剂化合物的催化剂组合物接触, 在约50℃至约180℃的温度下生产乙烯 - 丙烯聚合物,其中丙烯和乙烯单体的反应器与惰性烃溶剂或稀释剂的比例小于2.0,此外,其中 丙烯和乙烯单体和惰性烃溶剂或稀释剂不超过反应器总含量的90%; 和b)回收支链乙烯 - 丙烯组合物,其中乙烯 - 丙烯组合物的较高分子量区域的重均分支指数g'小于0.95。
    • 10. 发明申请
    • Thermoplastic Polyolefin In-Reactor Blends And Molded Articles Therefrom
    • 热塑性聚烯烃反应器共混物和成型制品
    • US20100152360A1
    • 2010-06-17
    • US12638843
    • 2009-12-15
    • Peijun JiangArmenag H. DekmezianJoseph Gustaaf M. Flendrig
    • Peijun JiangArmenag H. DekmezianJoseph Gustaaf M. Flendrig
    • C08L23/14C08K5/00
    • C08L23/12C08L23/14C08L2205/02C08L2314/06C08L2666/06
    • This invention relates to a molded article comprising an in-reactor polymer blend comprising: (a) a first propylene polymer comprising 90 to 100 wt % propylene and from 0 to less than 10 wt % comonomer, said first propylene component having a Tm of 135° C. or more; and (b) a second propylene polymer comprising from 30 to 90 wt % propylene and 70 to 10 wt % comonomer, said second propylene polymer having an Mw of 30,000 g/mol or more, and said second propylene-containing polymer having a crystallinity different by at least 5% from the first polymer, wherein the polymer blend has: (a) a Tm of at least 135° C., (b) a melt flow rate of at least 70 dg/min, (c) a tensile strength of at least 8 MPa, (d) an elongation at break of at least 200%, (e) a tensile strength at break of 10 MPa or more, and (f) a GME 60280 scratch resistance of less than 1.2 DL at a scratching load of 5 Newtons.
    • 本发明涉及包含反应器内聚合物共混物的模制品,其包含:(a)包含90至100重量%丙烯和0至小于10重量%共聚单体的第一丙烯聚合物,所述第一丙烯组分的Tm为135 ℃以上; 和(b)第二丙烯聚合物,其包含30至90重量%的丙烯和70至10重量%的共聚单体,所述第二丙烯聚合物的Mw为30,000g / mol或更高,并且所述第二丙烯聚合物具有不同的结晶度 与第一聚合物相比至少5%,其中聚合物共混物具有:(a)Tm至少为135℃,(b)熔体流动速率至少为70dg / min,(c)拉伸强度 至少8MPa,(d)断裂伸长率至少为200%,(e)断裂时的拉伸强度为10MPa以上,(f)在刮擦时GME 60280耐擦伤性小于1.2DL 负荷5牛顿。