Foamable Thermoplastic Reactor Blends and Foam Article Therefrom
    1.
    发明申请
    Foamable Thermoplastic Reactor Blends and Foam Article Therefrom 有权
    可泡沫热塑性反应器共混物和泡沫制品

    公开(公告)号:US20110118370A1

    公开(公告)日:2011-05-19

    申请号:US12986645

    申请日:2011-01-07

    IPC分类号: C08L23/14 C08J9/04

    摘要: This invention relates to a foamable blend comprising an in-reactor polymer blend comprising: (a) a first propylene polymer component comprising 90 to 100 wt % propylene and from 0 to less than 10 wt % comonomer, said first propylene component having a Tm of 120° C. or more; and (b) a second propylene polymer component 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, prior to combination with a foaming agent, has: (i) a Tm of at least 120° C.; (ii) a MFR of 10 dg/min or more; (iii) a tensile strength of at least 8 MPa; (iv) an elongation at break of at least 200%, and (v) a ratio of elongational viscosity at break to linear viscosity of 5 or more when the elongational viscosity is measured at a strain rate of 1 sec−1 and temperature of 180° C.; and where when the blend is foamed with a foaming agent, the foamed article has a density of 800 kg/m3 or less.

    摘要翻译: 本发明涉及包含反应器内聚合物共混物的可发泡共混物,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组分,所述第一丙烯组分的Tm为 120℃以上; 和(b)第二丙烯聚合物组分,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以上,所述第二丙烯聚合物具有结晶度 与第一聚合物不同,其中所述聚合物共混物在与发泡剂组合之前具有:(i)至少120℃的Tm; (ii)10dg / min以上的MFR; (iii)至少8MPa的拉伸强度; (iv)断裂伸长率至少为200%,(v)当在1秒-1的应变速率和温度为180℃下测量伸长粘度时,断裂时的拉伸粘度与线性粘度之比为5以上 C。; 并且当共混物用发泡剂发泡时,发泡制品的密度为800kg / m 3或更小。

    Multiple catalyst system for olefin polymerization and polymers produced therefrom

    公开(公告)号:US20070293640A1

    公开(公告)日:2007-12-20

    申请号:US11888876

    申请日:2007-08-02

    IPC分类号: C08F4/44 C08F10/14

    摘要: This invention relates to a polymer comprising one or more C3 to C40 olefins, optionally one or more diolefins, and less than 15 mole % of ethylene, where the polymer has: a) a Dot T-Peel of 1 Newton or more; and b) a branching index (g′) of 0.95 or less measured at the Mz of the polymer; c) an Mw of 100,000 or less. This invention also relates a polymer comprising one or more C3 to C40 olefins where the polymer has: a) a Dot T-Peel of 1 Newton or more on Kraft paper; b) a branching index (g′) of 0.95 or less measured at the Mz of the polymer; c) a Mw of 10,000 to 100,000; and d) a heat of fusion of 1 to 70 J/g. This invention also relates a polymer comprising one or more C3 to C40 olefins where the polymer has: a) a Dot T-Peel of 1 Newton or more on Kraft paper; b) a branching index (g′) of 0.98 or less measured at the Mz of the polymer; c) a Mw of 10,000 to 60,000; d) a heat of fusion of 1 to 50 J/g. This invention also relates to a homopolypropylene or a copolymer of propylene and up to 5 mole % ethylene having: a) an isotactic run length of 1 to 30 (isotactic run length “IRL” is defined to be the percent of mmmm pentad divided by 0.5× percent of mmmr pentad) as determined by Carbon 13 NMR, preferably 3 to 25, more preferably 4 to 20, b) a percent of r dyad of greater than 20%, preferably from 20 to 70% as determined by Carbon 13 NMR, and c) a heat of fusion of 70 J/g or less, preferably 60 J/g or less, more preferably between 1 and 55 J/g, more preferably between 4 and 50 J/g. This invention further relates to a process to produce an olefin polymer comprising: 1) selecting a first catalyst component capable of producing a polymer having an Mw of 100,000 or less and a crystallinity of 5% or less at selected polymerization conditions; 2) selecting a second catalyst component capable of producing polymer having an Mw of 100,000 or less and a crystallinity of 20% or more at the selected polymerization conditions; 3) contacting the catalyst components in the presence of one or more activators with one or more C3 to C40 olefins, at the selected polymerization conditions in a reaction zone; 4) obtaining the polymer. This invention further relates to a continuous process to produce a branched olefin polymer comprising: 1) selecting a first catalyst component capable of producing a polymer having an Mw of 100,000 or less and a crystallinity of 5% or less under selected polymerization conditions; 2) selecting a second catalyst component capable of producing polymer having an Mw of 100,000 or less and a crystallinity of 20% or more at the selected polymerization conditions; 3) contacting the catalyst components in the presence of one or more activators with one or more C3 to C40 olefins, and, optionally one or more diolefins; 4) at a temperature of greater than 100° C.; 5) at a residence time of 120 minutes or less; 6) wherein the ratio of the first catalyst to the second catalyst is from 1:1 to 50:1; 7) wherein the activity of the catalyst components is at least 100 kilograms of polymer per gram of the catalyst components; and wherein at least 20% of the olefins are converted to polymer.

    Foamable thermoplastic reactor blends and foam article therefrom
    5.
    发明授权
    Foamable thermoplastic reactor blends and foam article therefrom 有权
    可发泡热塑性反应器共混物和泡沫制品

    公开(公告)号:US08227547B2

    公开(公告)日:2012-07-24

    申请号:US12986645

    申请日:2011-01-07

    摘要: This invention relates to a foamable blend comprising an in-reactor polymer blend comprising: (a) a first propylene polymer component comprising 90 to 100 wt % propylene and from 0 to less than 10 wt % comonomer, said first propylene component having a Tm of 120° C. or more; and (b) a second propylene polymer component 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, prior to combination with a foaming agent, has: (i) a Tm of at least 120° C.; (ii) a MFR of 10 dg/min or more; (iii) a tensile strength of at least 8 MPa; (iv) an elongation at break of at least 200%, and (v) a ratio of elongational viscosity at break to linear viscosity of 5 or more when the elongational viscosity is measured at a strain rate of 1 sec−1 and temperature of 180° C.; and where when the blend is foamed with a foaming agent, the foamed article has a density of 800 kg/m3 or less.

    摘要翻译: 本发明涉及包含反应器内聚合物共混物的可发泡共混物,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组分,所述第一丙烯组分的Tm为 120℃以上; 和(b)第二丙烯聚合物组分,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以上,所述第二丙烯聚合物具有结晶度 与第一聚合物不同,其中所述聚合物共混物在与发泡剂组合之前具有:(i)至少120℃的Tm; (ii)10dg / min以上的MFR; (iii)至少8MPa的拉伸强度; (iv)断裂伸长率至少为200%,(v)当在1秒-1的应变速率和温度为180℃下测量伸长粘度时,断裂时的拉伸粘度与线性粘度之比为5以上 C。; 并且当共混物用发泡剂发泡时,发泡制品的密度为800kg / m 3或更小。

    Heterogeneous polymer blend and process of making the same
    6.
    发明申请
    Heterogeneous polymer blend and process of making the same 审中-公开
    非均相聚合物的混合和制造过程相同

    公开(公告)号:US20060293462A1

    公开(公告)日:2006-12-28

    申请号:US11296842

    申请日:2005-12-07

    IPC分类号: C08L23/04

    摘要: A heterogeneous polymer blend comprises a continuous phase comprising a thermoplastic first polymer having a crystallinity of at least 30% and a dispersed phase comprising particles of a second polymer different from the first polymer dispersed in said continuous phase and having an average particle size of less than 5 micron. The second polymer has a crystallinity of less than 20% and is at least partially cross-linked such that no more than about 50 wt % of the second polymer is extractable in cyclohexane at 23° C.

    摘要翻译: 非均相聚合物共混物包括连续相,其包含具有至少30%的结晶度的热塑性第一聚合物,和分散相包含不同于分散在所述连续相中的第一聚合物的第二聚合物的颗粒,并且平均粒度小于 5微米。 第二聚合物具有小于20%的结晶度并且至少部分交联,使得不超过约50重量%的第二聚合物在23℃在环己烷中可萃取。

    Process of making a heterogeneous polymer blend
    7.
    发明申请
    Process of making a heterogeneous polymer blend 失效
    制造非均相聚合物共混物的方法

    公开(公告)号:US20060293461A1

    公开(公告)日:2006-12-28

    申请号:US11296830

    申请日:2005-12-07

    IPC分类号: C08L23/04

    摘要: In a process for producing a heterogeneous polymer blend, at least one first monomer is polymerized in a first reaction zone in the presence of a supported catalyst to produce a thermoplastic first polymer having a crystallinity of at least 30%. At least part of said first polymer is then contacted with at least one second monomer and at least one polyene in a second reaction zone under conditions sufficient to polymerize said second monomer to produce a second polymer having a crystallinity of less than 20%. The second polymer is at least partially cross-linked in the second reaction zone such that at least a fraction of the second polymer is insoluble in xylene and such that the first and second polymers form different phases of the blend.

    摘要翻译: 在制备非均相聚合物共混物的方法中,至少一种第一单体在负载型催化剂的存在下在第一反应区中聚合以产生具有至少30%的结晶度的热塑性第一聚合物。 然后在足以使所述第二单体聚合以产生结晶度小于20%的第二聚合物的条件下,将至少部分所述第一聚合物与至少一种第二单体和至少一种多烯在第二反应区中接触。 第二聚合物在第二反应区域中至少部分交联,使得至少一部分第二聚合物不溶于二甲苯并使得第一和第二聚合物形成共混物的不同相。

    Olefin polymerization process to produce branched polymer compositions
    9.
    发明授权
    Olefin polymerization process to produce branched polymer compositions 失效
    烯烃聚合方法生产支链聚合物组合物

    公开(公告)号:US07101936B2

    公开(公告)日:2006-09-05

    申请号:US10433264

    申请日:2001-12-18

    IPC分类号: C08L23/14 C08L23/12

    摘要: A method of lowering MFR response of a high-melt-flow-rate-polymer-producing metallocene catalyst is provided. The method includes contacting the metallocene catalyst with a sufficient quantity of α,ω-diene monomer such that when the catalyst composition is contacted with polymerizable reactants under suitable polymerization conditions, the resulting polymer has an MFR rate in the range of 0.1 to 1000. Hydrogen and ethylene may also be present in the polymerization. Additionally a catalyst composition is provided which includes a high-melt-flow-rate-polymer-producing metallocene catalyst and a sufficient quantity of α,ω-diene monomers such that when the catalyst composition is contacted with a monomer under polymerization conditions, the resulting polymer has an MFR rate in the range of 0.1 to 1000.

    摘要翻译: 提供了降低产生高熔体流动聚合物的茂金属催化剂的MFR响应的方法。 该方法包括使茂金属催化剂与足够量的α,ω-二烯单体接触,使得当催化剂组合物在合适的聚合条件下与可聚合反应物接触时,所得聚合物的MFR率为0.1-1000。 并且乙烯也可以存在于聚合中。 此外,提供了一种催化剂组合物,其包括产生高熔体流动聚合物的茂金属催化剂和足量的α,ω-二烯单体,使得当催化剂组合物在聚合条件下与单体接触时,得到 聚合物的MFR率在0.1〜1000的范围内。