Process for producing polyolefin-based resin composition
    1.
    发明授权
    Process for producing polyolefin-based resin composition 失效
    聚烯烃系树脂组合物的制造方法

    公开(公告)号:US06835770B1

    公开(公告)日:2004-12-28

    申请号:US09689592

    申请日:2000-10-13

    IPC分类号: C08J300

    摘要: A process for a polyolefin-based resin composition, which comprises melt-kneading 100 parts by weight of a polyolefin-based resin and not less than 0.05 parts by weight and less than 2 parts by weight of polymer fine particles containing 0.10 to 90% by weight of a volatile component as an anti-blocking agent.

    摘要翻译: 1.一种聚烯烃系树脂组合物的制造方法,其特征在于,将100重量份聚烯烃系树脂熔融混炼,将0.05重量份以上且小于2重量份的含有0.10〜90重量% 挥发性成分作为防粘连剂的重量。

    Anti-blocking agent master batch
    2.
    发明授权
    Anti-blocking agent master batch 失效
    防堵剂母料

    公开(公告)号:US06479579B1

    公开(公告)日:2002-11-12

    申请号:US09689648

    申请日:2000-10-13

    IPC分类号: C08K300

    摘要: A process for producing an anti-blocking agent master batch, which comprises melt-kneading 100 parts by weight of a polyolefin-based resin and 2 to 100 parts by weight of polymer fine particles containing 0.10 to 20% by weight of a volatile component as an anti-blocking agent.

    摘要翻译: 一种防粘剂母料的制造方法,其特征在于,将100重量份聚烯烃类树脂和2〜100重量份含有0.10〜20重量%挥发性成分的聚合物微粒熔融捏合, 防粘剂。

    Polyolefin resin composition and oriented film therefrom
    3.
    发明授权
    Polyolefin resin composition and oriented film therefrom 失效
    聚烯烃树脂组合物和取向膜

    公开(公告)号:US5958574A

    公开(公告)日:1999-09-28

    申请号:US808984

    申请日:1997-02-20

    摘要: A polyolefin resin composition comprising (a) 100 parts by weight of a polyolefin resin and (b) 0.05 to 1 part by weight of beads of a crosslinked polymer comprising (1) 5 to 99% by weight of a radically polymerizable monomer unit represented by the general formula (A): ##STR1## wherein R.sub.1 is hydrogen or a hydrocarbon group having 1 to 5 carbon atoms and R.sub.2 is a hydrocarbon group having 5 to 30 carbon atoms, (2) 0 to 94% by weight of a radically polymerizable monomer unit other than the monomer unit of the general formula (A), and (3) 1 to 20% by weight of a crosslinkable monomer unit, said crosslinked polymer beads having a critical surface tension of 40 dyne/cm or less.

    摘要翻译: 一种聚烯烃树脂组合物,其包含(a)100重量份的聚烯烃树脂和(b)0.05至1重量份的交联聚合物珠粒,其包含(1)5至99重量%的可自由基聚合的单体单元, 通式(A):其中R 1为氢或碳原子数为1〜5的烃基,R 2为碳原子数为5〜30的烃基,(2)0〜94重量%的自由基聚合性单体单元 比通式(A)的单体单元和(3)1〜20重量%的交联性单体单元,所述交联聚合物珠具有40达因/厘米或更小的临界表面张力。

    POLYMER COMPOSITION AND FILM THEREOF
    5.
    发明申请
    POLYMER COMPOSITION AND FILM THEREOF 有权
    聚合物组合物及其膜

    公开(公告)号:US20080015312A1

    公开(公告)日:2008-01-17

    申请号:US11777427

    申请日:2007-07-13

    IPC分类号: C08F8/00

    摘要: Disclosed is a polymer composition comprising a copolymer of propylene, a specific amount of α-olefin having 4 or more carbon atoms and optionally a specific amount of ethylene and a specific 1-butene homopolymer or copolymer having a melting point of not lower than 60° C. but lower than 125° C., wherein the polymer composition contains a 20° C. xylene-soluble portion of the polymer composition in an amount of from 5 to 45% by weight and the 20° C. xylene-soluble portion has an intrinsic viscosity of 1.3 dl/g or higher. The polymer composition may optionally contain a specific propylene copolymer and/or a specific propylene homopolymer or copolymer having a melting point of from 150° C. to 170° C.

    摘要翻译: 公开了一种聚合物组合物,其包含丙烯,特定量的具有4个或更多个碳原子的α-烯烃和任选的特定量的乙烯和特定的1-丁烯均聚物或共聚物的共聚物,其熔点不低于60℃ 但低于125℃,其中聚合物组合物含有5至45重量%的量的聚合物组合物的20℃二甲苯可溶部分,20℃二甲苯可溶部分具有 特性粘度为1.3dl / g以上。 聚合物组合物可任选地含有特定的丙烯共聚物和/或熔点为150℃至170℃的特定丙烯均聚物或共聚物。

    Process for producing ethylene-propylene block copolymer
    6.
    发明授权
    Process for producing ethylene-propylene block copolymer 失效
    生产乙烯 - 丙烯嵌段共聚物的方法

    公开(公告)号:US5473021A

    公开(公告)日:1995-12-05

    申请号:US176917

    申请日:1994-01-03

    CPC分类号: C08F297/083

    摘要: A process for producing ethylene-propylene block copolymer which comprises(1) The first step of reacting propylene or a mixture of propylene and ethylene in the presence of a catalyst composed essentially of(A) a solid catalyst component containing magnesium, titanium and a halogen as the indispensable ingredients,(B) an organoaluminum compound, and(C) a silicon compound (1) represented by the formula R.sup.1 R.sup.2 Si(OR.sup.3).sub.2, wherein R.sup.1 is an alicyclic hydrocarbon group of 5-20 carbon atoms and R.sup.2 and R.sup.3 are each independently a hydrocarbon group of 1-20 carbon atoms, to form a propylene homopolymer portion or an ethylene-propylene copolymer portion having an ethylene content of 3% by weight or less, in an amount corresponding to 50-95% by weight of the total block copolymer amount, and(2) the second step of reacting a mixture of ethylene and propylene with the polymer portion obtained in the first step in the presence of the aforesaid catalyst composed essentially of the components (a), (b) and (c) and in the additional presence of a silicon compound (2) represented by the formula R.sup.4.sub.a Si(OR.sup.5).sub.4-a, wherein R.sup.4 and R.sup.5 are each independently a hydrocarbon group of 1-20 carbon atoms and a is a number satisfying the equation 0.ltoreq.a

    摘要翻译: 一种生产乙烯 - 丙烯嵌段共聚物的方法,其包括(1)在主要由(A)含有镁,钛和卤素的固体催化剂组分的催化剂存在下使丙烯或丙烯与乙烯的混合物反应的第一步骤 作为不可或缺的成分,(B)有机铝化合物和(C)由式R 1 R 2 Si(OR 3)2表示的硅化合物(1),其中R 1是5-20个碳原子的脂环族烃基,R 2和R 3是 各自独立地是1-20个碳原子的烃基,以形成丙烯均聚物部分或乙烯含量为3重量%以下的乙烯 - 丙烯共聚物部分,其量相当于所述乙烯含量的50-95重量% 总共嵌段共聚物量,和(2)在上述主要由组分(a),(b)组成的催化剂存在下,使乙烯和丙烯的混合物与第一步获得的聚合物部分反应的第二步骤, 和(c),另外存在由式R4aSi(OR5)4-a表示的硅化合物(2),其中R4和R5各自独立地为1-20个碳原子的烃基,a为满足 方程式0 <= a <4,得到乙烯 - 丙烯嵌段共聚物,其含有乙烯含量为至少20重量%的乙烯 - 丙烯共聚物部分,其量相当于5-50重量% 总嵌段共聚物量。

    Stretched polypropylene film
    10.
    发明授权
    Stretched polypropylene film 有权
    拉伸聚丙烯薄膜

    公开(公告)号:US06835791B2

    公开(公告)日:2004-12-28

    申请号:US10314132

    申请日:2002-12-09

    IPC分类号: C08F21006

    摘要: Disclosed is a stretched film excellent in low-temperature heat sealability after corona treatment as well as that before corona treatment and/or in heat shrinkability, the stretched film being comprised of a layer comprising a copolymer of propylene with &agr;-olefin and/or ethylene such that in measurement of a DSC curve the amount of the heat absorbed in the temperature range of from T−10 (° C.) to T+10 (° C.) accounts for from 15 to 36% of the amount of the heat absorbed in the temperature range of from 53 to 170° C., wherein T denotes a temperature (° C.) at which a maximum endothermic peak appears in the DSC curve.

    摘要翻译: 公开了一种在电晕处理后以及在电晕处理和/或热收缩之前的低温热封性优异的拉伸膜,拉伸膜由包含丙烯与α-烯烃和/或乙烯的共聚物的层组成 使得在DSC曲线的测量中,在T-10(℃)至T + 10(℃)的温度范围内吸收的热量占热量的15至36% 在53至170℃的温度范围内吸收,其中T表示在DSC曲线中出现最大吸热峰的温度(℃)。