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    Process of producing thermoplastic polymer blends
    1.
    发明申请
    Process of producing thermoplastic polymer blends 有权
    生产热塑性聚合物共混物的方法

    公开(公告)号：US20070015877A1

    公开(公告)日：2007-01-18

    申请号：US11446794

    申请日：2006-06-05

    Applicant: Terry Burkhardt ,  Aspy Mehta

    Inventor： Terry Burkhardt ,  Aspy Mehta

    IPC: C08L23/04

    CPC classification number: C08L23/12 ,  C08L23/10 ,  C08L23/14 ,  C08L23/142 ,  C08L2205/02 ,  C08L2666/06

    Abstract: A process is described for producing a polymer blend comprising (a) a first polymer component comprising a crystalline propylene polymer and (b) a second polymer component comprising a copolymer of propylene with at least one comonomer, wherein the copolymer comprises between about 7 wt % and about 28 wt % of comonomer and the copolymer has a heat of fusion of 0.5 to 70 J/g and an mm triad tacticity of 75% or greater. The process comprises polymerizing propylene under first polymerization conditions in a polymerization reaction zone to produce a first effluent comprising a crystalline propylene polymer containing no more than 10% by weight of other monomers, the first polymerization conditions comprising a first reaction temperature between about 50° C. and about 100° C. Propylene is then copolymerized with at least one comonomer under second polymerization conditions in the presence of a metallocene catalyst and at least part of said first effluent in a slurry polymerization reaction zone to produce the second polymer component as a blend with the first polymer component, the second polymerization conditions comprising a second reaction temperature at least 7° C. less than the first reaction temperature.

    Abstract translation: 描述了一种制备聚合物共混物的方法，其包含（a）包含结晶丙烯聚合物的第一聚合物组分和（b）包含丙烯与至少一种共聚单体的共聚物的第二聚合物组分，其中所述共聚物包含约7重量％ 和约28重量％的共聚单体，共聚物的熔融热为0.5〜70J / g，mm三元组立构规整度为75％以上。 该方法包括在聚合反应区中在第一聚合条件下聚合丙烯以产生包含不超过10重量％的其它单体的结晶丙烯聚合物的第一流出物，第一聚合条件包括约50℃的第一反应温度 然后约100℃。然后，丙烯在第二聚合条件下，在茂金属催化剂和至少部分所述第一流出物在淤浆聚合反应区中的存在下，与至少一种共聚单体共聚以产生作为共混物的第二聚合物组分 与第一聚合物组分相比，第二聚合条件包括比第一反应温度低至少7℃的第二反应温度。

    Homogeneous polymer blend and articles therefrom
    2.
    发明申请
    Homogeneous polymer blend and articles therefrom 失效
    均相聚合物共混物及其制品

    公开(公告)号：US20060183860A1

    公开(公告)日：2006-08-17

    申请号：US11299022

    申请日：2005-12-09

    Applicant: Aspy Mehta ,  Chia Cheng ,  Sudhin Datta ,  Wen Li ,  Chon Lin ,  Srivatsan Iyer

    Inventor： Aspy Mehta ,  Chia Cheng ,  Sudhin Datta ,  Wen Li ,  Chon Lin ,  Srivatsan Iyer

    IPC: C08F8/00

    CPC classification number: C08L23/10 ,  C08L23/142 ,  C08L2205/02 ,  C08L2205/025 ,  C08L2314/06 ,  C08L2666/06

    Abstract: This invention relates to homogeneous blends of: 1) from 60 to 99 weight percent of one or more semi-crystalline polymers (based upon the weight of the semi-crystalline and semi-amorphous polymers), each semi-crystalline polymer comprising propylene and from 0 to 5 weight % alpha-olefin comonomer (based upon the weight of the polymer), said semi-crystalline polymers each having a melting point between 100 and 170° C. and a melt flow rate of 200 dg/min or less; and 2) from 1 to 40 weight % of one or more semi-amorphous polymers (based upon the weight of the semi-crystalline and semi-amorphous polymers), each semi-amorphous polymer comprising propylene and from 5 to 12 weight % of one or more C2 and or C4 to C10 alpha-olefin comonomers, said semi-amorphous polymers each having: a) 10 to 50 percent crystallinity or less; b) a melt flow rate of 200 dg/min or less; c) a DSC melting point (second melt Tm) of 130° C. or less; d) an intermolecular composition distribution as determined by thermal fractionation in hexane such that 85% by weight or more of the polymer is isolated as one or two adjacent, soluble fractions with the balance of the polymer in immediately preceding or succeeding fractions; and wherein each of these fractions has a wt % comonomer content with a difference of no greater than 20 wt % relative to the average wt % comonomer content of the copolymer; e) an Mw/Mn of 1.5 to 4, f) a triad tacticity of three propylene units, as measured by 13C NMR, of 75% or greater, for use in films, fibers, non-wovens, molded articles and the like.

    Abstract translation: 本发明涉及以下均质共混物：1）60至99重量％的一种或多种半结晶聚合物（基于半结晶和半无定形聚合物的重量），每种半结晶聚合物包含丙烯和 0至5重量％的α-烯烃共聚单体（基于聚合物的重量），所述半结晶聚合物各自具有100-170℃的熔点和200dg / min以下的熔体流动速率; 和2）1至40重量％的一种或多种半无定形聚合物（基于半结晶和半无定形聚合物的重量），每种包含丙烯的半无定形聚合物和5至12重量％的一种 或更多的C 2和C 4至C 10α-烯烃共聚单体，所述半无定形聚合物各自具有：a）10至50％的结晶度或更低; b）200dg / min或更低的熔体流动速率; c）130℃或更低的DSC熔点（第二熔体Tm）; d）通过在己烷中的热分馏测定的分子间组成分布，使得85重量％或更多的聚合物作为一个或两个相邻的可溶性级分分离，在紧邻前面或后续级分中余量的聚合物分离; 并且其中这些级分中的每一种都具有相对于共聚物的平均重量％共聚单体含量的不大于20重量％的重量％共聚单体含量; e）Mw / Mn为1.5至4，f）通过13 C NMR测量的三个丙烯单元的三单元立构规整度为75％或更大，用于膜，纤维， 织物，模制品等。

    Heterogeneous polymer blends and molded articles therefrom
    3.
    发明申请
    Heterogeneous polymer blends and molded articles therefrom 有权

    公开(公告)号：US20060173132A1

    公开(公告)日：2006-08-03

    申请号：US11298145

    申请日：2005-12-09

    Applicant: Aspy Mehta ,  Sudhin Datta ,  Wen Li ,  Srivatsan Iyer

    Inventor： Aspy Mehta ,  Sudhin Datta ,  Wen Li ,  Srivatsan Iyer

    IPC: C08F8/00

    CPC classification number: C08L23/10 ,  C08L23/12 ,  C08L23/14 ,  C08L2023/42 ,  C08L2205/02 ,  C08L2205/025 ,  C08L2205/03 ,  C08L2314/06 ,  C08L2666/06 ,  C08L2666/02

    Abstract: This invention relates to a molded article comprising a heterogeneous blend comprising: 1) from 60 to 99 weight percent of one or more semi-crystalline polymers (based upon the weight of the semi-crystalline and semi-amorphous polymers), each semi-crystalline polymer comprising propylene and from 0 to 5 weight % alpha-olefin comonomer (based upon the weight of the polymer), said semi-crystalline polymers each having a melting point between 100 and 170° C. and a melt flow rate of 200 dg/min or less; and 2) from 1 to 40 weight % of one or more semi-amorphous polymers (based upon the weight of the semi-crystalline and semi-amorphous polymers), each semi-amorphous polymer comprising propylene and from 10 to 25 weight % of one or more C2 and/or C4 to C10 alpha-olefin comonomers, said semi-amorphous polymers each having: a) a heat of fusion of 4 to 70 J/g; and b) a melt flow rate of 0.1 to 200 dg/min; and c) an intermolecular compositional distribution as determined by thermal fractionation in hexane such that 85% by weight or more of the polymer is isolated as one or two adjacent, soluble fractions with the balance of the polymer in immediately preceding or succeeding fractions; and wherein each of these fractions has a wt % comonomer content with a difference of no greater than 20 wt % relative to the average wt % comonomer content of the copolymer; and d) an Mw/Mn of 1.5 to 4, and e) a propylene triad tacticity, as measured by 13C NMR, of 75% or greater; where the blend has: i) a melt flow rate of 0.5 to 200 dg/min; and ii) less than 5 weight % filler, based upon the weight of the polymers and the filler; and iii) a permanent set of greater than 65%; and iv) a haze of 20% or less on a 1 mm injection molded chip; and the molded part has: a) a thickness of 250 μm to 10 mm; and b) a notched Izod impact strength at 23° C. of 80 J/m or more; and c) a notched Izod impact strength at 0° C. of 27 J/m or more; and d) a 1% secant flexural modulus of 1035 MPa or lower; and e) an ultimate elongation where greater than 50% of 5 test specimens suffer no break through extension to 1000%; and f) a resistance to stress whitening of Hunter color ΔL of 15 or lower.

    Films from polymer blends
    5.
    发明申请
    Films from polymer blends 有权
    聚合物共混物膜

    公开(公告)号：US20060178483A1

    公开(公告)日：2006-08-10

    申请号：US11299104

    申请日：2005-12-09

    Applicant: Aspy Mehta ,  Sudhin Datta ,  Wen Li ,  Srivatsan Iyer

    Inventor： Aspy Mehta ,  Sudhin Datta ,  Wen Li ,  Srivatsan Iyer

    IPC: C08L23/04

    CPC classification number: C08L23/10 ,  C08L23/14 ,  C08L23/142 ,  C08L2205/02 ,  C08L2205/025 ,  Y10T428/249924 ,  Y10T428/31645 ,  Y10T428/31692 ,  Y10T428/31895 ,  Y10T428/31913 ,  C08L2666/06

    Abstract: This invention relates to a film comprising a heterogeneous blend of: 1) from 60 to 99 wt % of one or more semi-crystalline polymers; and 2) from 1 to 40 wt % of one or more semi-amorphous polymers; where the bend has: an MFR of 0.5 to 100 dg/min, a haze of 20% or less, and a permanent set of greater than 65%; and where the film is 2.5 to 635 microns thick and has: a haze of 10% or less, a 1° Secant tensile modulus of 100,000 to 30,000 psi, an Elmendorf tear in the machine direction and transverse direction of 45 g/mil or more, a total energy impact of 3 J or more; and a 45 degree gloss of 82 or more.

    Abstract translation: 本发明涉及包含以下的非均相共混物的膜：1）60至99重量％的一种或多种半结晶聚合物; 和2）1至40重量％的一种或多种半无定形聚合物; 弯曲部的MFR为0.5〜100dg /分钟，雾度为20％以下，永久变形率为65％以上。 并且其中薄膜的厚度为2.5至635微米，雾度为10％或更小，1分割分子拉伸模量为100,000至30,000磅/平方英寸，Elmendorf在机器方向和横向上的撕裂量为45克/密耳或更高 3 J以上的总能量冲击; 和45度光泽度为82以上。

    Polymer blends and nonwoven articles therefrom
    6.
    发明申请
    Polymer blends and nonwoven articles therefrom 有权

    公开(公告)号：US20060172647A1

    公开(公告)日：2006-08-03

    申请号：US11299167

    申请日：2005-12-09

    Applicant: Aspy Mehta ,  Chia Cheng ,  Sudhin Datta ,  Wen Li ,  Chon Lin ,  Srivatsan Iyer

    Inventor： Aspy Mehta ,  Chia Cheng ,  Sudhin Datta ,  Wen Li ,  Chon Lin ,  Srivatsan Iyer

    IPC: D04H13/00 ,  D04H1/00 ,  D04H5/00 ,  D04H3/00

    CPC classification number: C08L23/10 ,  C08L23/142 ,  C08L2205/02 ,  C08L2314/06 ,  D01F1/10 ,  D01F6/46 ,  D04H1/4291 ,  D04H1/4382 ,  D04H1/4391 ,  D04H1/56 ,  D04H3/16 ,  Y10T428/249938 ,  Y10T442/60 ,  Y10T442/607 ,  Y10T442/627 ,  Y10T442/633 ,  Y10T442/636 ,  Y10T442/637 ,  C08L2666/06

    Abstract: This invention relates to a nonwoven article comprising a heterogeneous blend comprising: 1) from 60 to 99 weight percent of one or more semi-crystalline polymers (based upon the weight of the semi-crystalline and semi-amorphous polymers), each semi-crystalline polymer comprising propylene and from 0 to 5 weight % alpha-olefin comonomer (based upon the weight of the polymer), said semi-crystalline polymers each having a melting point between 100 and 170° C. and a melt flow rate of 2000 dg/min or less; and 2) from 1 to 40 weight % of one or more semi-amorphous polymers (based upon the weight of the semi-crystalline and semi-amorphous polymers), each semi-amorphous polymer comprising propylene and from 10 to 25 weight % of one or more C2 and or C4 to C10 alpha-olefin comonomers, said semi-amorphous polymers each having: a) heat of fusion of 4 to 70 J/g; b) a Melt Flow Rate of 0.1 to 2000 dg/min; c) an intermolecular compositional distribution as determined by thermal fractionation in hexane such that 85% by weight or more of the polymer is isolated as one or two adjacent, soluble fractions with the balance of the polymer in immediately preceding or succeeding fractions; and wherein each of these fractions has a wt % comonomer content with a difference of no greater than 20 wt % relative to the average wt % comonomer content of the copolymer; and d) an Mw/Mn of 1.5 to 4, and e) a propylene triad tacticity, as measured by 13C NMR, of 75% or greater; where the blend of the semi-crystalline and semi-amorphous polymers comprises less than 5 weight % filler, based upon the weight of the polymers and the filler, and the blend has: i) an MFR greater than 10 dg/min; and ii) a Permanent Set of greater than 65% (as measured on a 125 mil thick molded part); and where the nonwoven article has a Hand of 40 g or less at a fabric basis weight of 35 gsm.

    EXPANDED BEAD FOAMS FROM PROPYLENE-DIENE COPOLYMERS AND THEIR USE
    8.
    发明申请
    EXPANDED BEAD FOAMS FROM PROPYLENE-DIENE COPOLYMERS AND THEIR USE 审中-公开
    来自丙烯二烯共聚物及其使用的膨胀珠粒

    公开(公告)号：US20050090571A1

    公开(公告)日：2005-04-28

    申请号：US10694150

    申请日：2003-10-27

    Applicant: Aspy Mehta ,  Pawan Agarwal

    Inventor： Aspy Mehta ,  Pawan Agarwal

    IPC: C08F210/06 ,  C08J9/04 ,  C08J9/00

    CPC classification number: C08J9/04 ,  C08J2323/12

    Abstract: Disclosed herein is an expanded olefin resin comprising a copolymer base resin and a blowing agent, wherein the copolymer base resin is comprised of about 90 to 99.999 weight percent of an olefin and about 0.001 to 10 weight percent of an α-ω diene, wherein the copolymer base resin has a weight average molecular weight of about 30,000 to 500,000 Daltons, a crystallization temperature in a range from 115° C. to 135° C., and a melt flow rate in a range from 0.1 dg/min to 100 dg/min as determined using ASTM D-1238 at 230° C. and 2.16 kg load.

    Abstract translation: 本文公开了包含共聚物基础树脂和发泡剂的膨胀型烯烃树脂，其中共聚物基础树脂由约90至99.999重量％的烯烃和约0.001至10重量％的α-ω二烯组成，其中 共聚物基树脂的重均分子量为约30,000〜500,000道尔顿，结晶温度为115〜135℃，熔体流动速率为0.1dg / min〜100dg / min，使用ASTM D-1238在230℃和2.16kg负荷下测定。

    Heterogeneous polymer blend and process of making the same
    9.
    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

    Applicant: Sunny Jacob ,  Peijun Jiang ,  Aspy Mehta ,  Pradeep Shirodkar ,  Armenag Dekmezian

    Inventor： Sunny Jacob ,  Peijun Jiang ,  Aspy Mehta ,  Pradeep Shirodkar ,  Armenag Dekmezian

    IPC: C08L23/04

    CPC classification number: C08L23/10 ,  C08L23/145 ,  C08L23/16 ,  C08L2312/00 ,  C08L2314/06 ,  C08L2666/06

    Abstract: 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.

    Abstract translation: 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
    10.
    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

    Applicant: Peijun Jiang ,  Aspy Mehta ,  Armenag Dekmezian ,  Sunny Jacob ,  Andrew Narvaez ,  Pradeep Shirodkar

    Inventor： Peijun Jiang ,  Aspy Mehta ,  Armenag Dekmezian ,  Sunny Jacob ,  Andrew Narvaez ,  Pradeep Shirodkar

    IPC: C08L23/04

    CPC classification number: C08L23/10 ,  C08F110/06 ,  C08F210/06 ,  C08L23/145 ,  C08L2308/00 ,  C08L2312/00 ,  C08L2312/02 ,  C08L2314/06 ,  C08F2/001 ,  C08L2666/06 ,  C08F210/18 ,  C08F236/20 ,  C08F2500/20

    Abstract: 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.

    Abstract translation: 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。

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