PRE-POLYMERIZED CATALYST COMPONENTS FOR THE POLYMERIZATION OF OLEFINS
    221.
    发明申请
    PRE-POLYMERIZED CATALYST COMPONENTS FOR THE POLYMERIZATION OF OLEFINS 有权
    用于烯烃聚合的预聚合催化剂组分

    公开(公告)号:US20140316083A1

    公开(公告)日:2014-10-23

    申请号:US14365357

    申请日:2012-12-11

    CPC classification number: C08F10/02 C08F10/00 C08F4/6492 C08F110/06 C08F4/651

    Abstract: A pre-polymerized catalyst component for the polymerization of olefins endowed with high activity and morphological stability comprises a non-stereospecific solid catalyst component containing Ti, Mg and a halogen, and an amount of an ethylene/alpha-olefin block (co)polymer ranging from 0.1 up to 5 g per g of said solid catalyst component, said prepolymerized catalyst component being characterized by a mercury porosity, due to pores having radius up to 1 μm, ranging from 0.15 to 0.5 cm3/g and by the fact that at least 55% of said porosity is due to pores having pore radius up to 0.2 μm.

    Abstract translation: 用于聚合具有高活性和形态稳定性的烯烃聚合的预聚合催化剂组分包括含有Ti,Mg和卤素的非立体特异性固体催化剂组分和一定量的乙烯/α-烯烃嵌段(共)聚合物范围 0.1至5g / g所述固体催化剂组分,所述预聚催化剂组分的特征在于水银孔隙率,由于孔径半径为1μm,范围为0.15至0.5cm 3 / g,并且至少 所述孔隙率的55%是由于孔半径高达0.2μm的孔。

    POLYMER COMPOSITION FOR BUMPERS AND INTERIORS AND POLYETHYLENE-BASED RESIN PRECURSOR
    222.
    发明申请
    POLYMER COMPOSITION FOR BUMPERS AND INTERIORS AND POLYETHYLENE-BASED RESIN PRECURSOR 有权
    用于缓冲和内部聚合物和聚乙烯基树脂前体的聚合物组合物

    公开(公告)号:US20140303310A1

    公开(公告)日:2014-10-09

    申请号:US14357474

    申请日:2012-10-30

    Abstract: Polyolefin compositions suitable for injection moulded items e.g. for impact bumpers and car interiors comprising from 30% to 90% by weight of an heterophasic propylene polymer composition (A); and from 10% to 70% by weight of a multimodal ethylene/C6-C12 alpha olefin copolymer (B); having density from 0.850 to 0.920 g/cm3, total comonomer content from 6% to 30% by weight, Mw/Mn from 4 to 20; intrinsic viscosity in decalin at 135° C. from 1.0 to 4.0 dL/g, and comprising an HDPE fraction (HDPE % wt) up to 30% wt; further comprising up to 50% by weight of a filler (C) and optionally, in amount up to 10% by weight with respect to the overall composition, an impact modifier masterbatch component (D) consisting of a ultra-soft heterophasic copolymer component.

    Abstract translation: 适用于注射成型物品的聚烯烃组合物 用于冲击保险杠和汽车内饰,其包含按重量计30%至90%的异相丙烯聚合物组合物(A); 和10重量%至70重量%的多峰乙烯/ C 6 -C 12α-烯烃共聚物(B); 密度为0.850〜0.920g / cm3,总共聚单体含量为6〜30重量%,Mw / Mn为4〜20; 在135℃,萘烷中的特性粘度为1.0-4.0dL / g,并且包含高达30%wt的HDPE级分(HDPE%wt); 进一步包含至多50重量%的填料(C),并且任选地,相对于整个组合物,其量为至多10重量%,由超软多相共聚物组分组成的抗冲改性剂母料组分(D)。

    MAGNESIUM DICHLORIDE-ETHANOL ADDUCTS AND CATALYST COMPONENTS OBTAINED THEREFROM
    223.
    发明申请
    MAGNESIUM DICHLORIDE-ETHANOL ADDUCTS AND CATALYST COMPONENTS OBTAINED THEREFROM 有权
    二氯二苯醚 - 乙醇添加剂和催化剂组分

    公开(公告)号:US20140171604A1

    公开(公告)日:2014-06-19

    申请号:US14236486

    申请日:2012-08-01

    Abstract: Solid adducts comprising MgCl2 and an alcohol ROH in which R is a C1-C20 hydrocarbon group, in which the amount of alcohol ranges from higher than 42% to 60% by weight and the porosity determined with Hg method due to pores up to 1 μm and expressed in cm3/g, is such that the value of its ratio with the amount of alcohol in percentage falls above the straight line defined by the equation y=−0.0158x+1.03 in which y is the porosity of the adduct and x is the alcohol percentage by weight.

    Abstract translation: 包含MgCl 2和醇ROH的固体加合物,其中R是C1-C20烃基,其中醇的含量范围高于42%至60%(重量),并且由于孔高达1μm而用Hg法测定的孔隙率 以cm 3 / g表示,其与醇的比例的比值的值落在由等式y = -0.0158x + 1.03定义的直线之上,其中y是加合物的孔隙率,x是 酒精重量百分比。

    Styrene-assisted depolymerization of polyolefins

    公开(公告)号:US12173124B2

    公开(公告)日:2024-12-24

    申请号:US17450234

    申请日:2021-10-07

    Abstract: Methods of depolymerizing polyolefin-based material into useful petrochemical products using styrene oligomers or polymers, and heat are described. The styrene oligomers or polymers improve the depolymerization reaction by decreasing the halftime for the depolymerization, which results in a higher depolymerization rate and a shorter residence time in the depolymerization unit, allowing for a predictable depolymerization reaction, and decreasing the branching or aromatic formations in the product.

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