Process for the preparation of olefin (co) polymers, olefin copolymers, and application thereof
    1.
    发明授权
    Process for the preparation of olefin (co) polymers, olefin copolymers, and application thereof 有权
    烯烃(共)聚合物,烯烃共聚物的制备方法及其应用

    公开(公告)号:US06410662B1

    公开(公告)日:2002-06-25

    申请号:US09485492

    申请日:2000-02-11

    IPC分类号: C08F444

    摘要: Disclosed is a process for producing olefin polymers or copolymers which can freely regulates the molecular weight of the polymers or copolymers as well as novel olefin polymers or copolymers excellent in rigidity, heat-resisting property and transparency, moldings and compositions thereof which find a wide variety of applications in versatile industrial parts including containers, films, sheets, filaments or fibers, featured by (1) a process for producing olefin polymers or copolymers by the aid of a catalyst comprised predominantly of the compounds: (A) a transition metal compound of the formula: Q(C5H4−mR1m)(C5H4−nR2n)MXY, (B) an aluminoxane, (C) a fine particulate carrier, and (D) an organoaluminum compound; (2) olefin polymers or copolymers characterized by (a) a specific ratio of isotactic pentad, (b) 2,1- and 1.3-propylene units contents in the polymer chain, (c) a specific Mw, (d) a specific Mw/Mn, and (e) in case of elevating temperature of o-dichlorobenzene continuously or stepwise up to given temperatures to measure the amount of eluated polyolefin at each temperature, the position of a main elution peak and the amount of components existing in the range of ±10° C. of the main elution peak; (3) injection moldings, films, filaments or fibers, and non-woven fabric of the polypropylene obtained; and (4) a composition comprising the polypropylene obtained and an &agr;-nucleating agent or a composition comprising the polypropylene and a radical generator and having been produced by subjecting to the mixture to melt-kneading.

    摘要翻译: 公开了可以自由调节聚合物或共聚物的分子量的烯烃聚合物或共聚物的方法,以及刚性,耐热性能和透明性,模制品和组合物的新型烯烃聚合物或共聚物,其具有广泛的种类 在包括容器,膜,片,长丝或纤维在内的通用工业部件中的应用,其特征在于(1)主要由以下化合物构成的催化剂生产烯烃聚合物或共聚物的方法:(A)过渡金属化合物 式(QH(C5H4-mR1m)(C5H4-nR2n))MXY,(B)铝氧烷,(C)微粒载体和(D)有机铝化合物; (2)烯烃聚合物或共聚物,其特征在于(a)聚合物链中全同立构五单体,(b)2,1-和1.3-丙烯单元含量的比例,(c)特定Mw,(d)特定Mw / Mn,(e)在邻二氯苯连续或逐步升高至给定温度的情况下,在每个温度下测量洗脱聚烯烃的量,主洗脱峰的位置和存在于该范围内的组分的量 ±10℃的主洗脱峰; (3)注射成型品,薄膜,细丝或纤维,以及得到的聚丙烯的无纺布; 和(4)包含所得聚丙烯和α-成核剂或包含聚丙烯和自由基发生剂的组合物并通过使混合物进行熔融捏合而制备的组合物的组合物。

    Polypropylene composition
    2.
    发明授权
    Polypropylene composition 有权
    聚丙烯组成

    公开(公告)号:US06326432B1

    公开(公告)日:2001-12-04

    申请号:US09508799

    申请日:2000-03-17

    IPC分类号: C08F800

    摘要: Disclosed is a polypropylene composition excellent in balance of low temperature impact-strength, rigidity, heat resistance and transparency, which is featured by comprising 20-95% by weight of a polypropylene defined in the following [I] and 5-80% by weight of a propylene-&agr;-olefin copolymer defined in the following [II]: [I] a polypropylene featured by having: (1) a ratio of isotactic pentad (mmmm) of 0.900-0.949, (2) the 2,1- and 1,3-propylene units in the polymer chain in the amount of 0-1 mole %, (3) a weight average molecular weight (Mw) of 40,000-1,000,000, (4) a ratio of a weight average molecular weight (Mw) to a number average molecular weight (Mn), i.e. (Mw)/(Mn) of 1.5-3.8, and (5) in case of elevating the temperature of o-dichlorobenzene continuously or stepwise up to given temperatures to measure the amount of eluted polypropylene at each temperature, the position of a main elution peak is 95-110° C. and the amount of components existing in the range of ±10° C. of the main elution peak is at least 90% of the total amounts of components eluted at a temperature higher than 0° C. and [II] a propylene-&agr;-olefin copolymer containing 10-90% by weight of a constituent derived from propylene and 10-90% by weight of a constituent derived from &agr;-olefin other than propylene.

    摘要翻译: 公开了低温冲击强度,刚性,耐热性和透明性的平衡优异的聚丙烯组合物,其特征在于包含20-95重量%的以下[I]中定义的聚丙烯和5-80重量% 的以下[II]中定义的丙烯-α-烯烃共聚物:[I]聚丙烯,其特征在于具有:(1)全同立构五单元组比(mmmm)为0.900-0.949,(2)2,1-和 聚合物链中的1,3-丙烯单元的量为0-1摩尔%,(3)重均分子量(Mw)为40,000-1,000,000,(4)重均分子量(Mw) 达到数均分子量(Mn),即(Mw)/(Mn)为1.5-3.8,和(5)在连续或逐步升高到给定温度的邻二氯苯温度下测量洗脱量 聚丙烯在每个温度下,主洗脱峰的位置为95-110℃,组分的存在量在±10℃的范围内 n洗脱峰为在高于0℃的温度下洗脱的组分的总量的至少90%,[II]含有10-90重量%的衍生自丙烯的组分和10重量%的丙烯-α-烯烃共聚物 -90重量%的除丙烯以外的α-烯烃的成分。

    Propylene copolymer and process for the production thereof
    3.
    发明授权
    Propylene copolymer and process for the production thereof 失效
    丙烯共聚物及其制备方法

    公开(公告)号:US06303698B1

    公开(公告)日:2001-10-16

    申请号:US09486921

    申请日:2000-05-09

    IPC分类号: C08F21006

    摘要: Disclosed is propylene copolymers produced by the aid of a specific metallocene catalyst system, wherein a percentage of mis-insertion in the copolymer is highly controlled and the copolymers possess beat-resisting property and a high melt strength and a low MFR and are narrow in molecular weight distribution excellent in particulate properties as well as a process for producing the copolymers possessing high steroregularity at a practical polymerzation temperature. The gist of the present invention resides in production of propylene copolymers wherein copolymerization with &agr;,&ohgr;-diene is carried out by the aid of a supported-type catalyst system comprised predominantly of the following compound (A), (B), (C) and (D) at a temperature above 45° C.: the compound (A): a specific metallocene compound represented by Q(C5H4−mR1m)(C5H4−nR2n) MXY, the compound (B): an aluminoxane, the compound (C): an organoaluminum compound, and the compound (D): a particulate carrier. An important feature of the propylene copolymers of the present invention resides in the fact that the copolymers are high stereoregular and have a ratio of a mis-inserted unit based on 2,1-insertion of propylene monomer in the total propylene insertion being defined within a specific range.

    摘要翻译: 公开了通过特定的茂金属催化剂体系制备的丙烯共聚物,其中共聚物中错误插入的百分比被高度控制,并且共聚物具有抗电阻性能和高熔体强度和低MFR并且分子窄 颗粒性能优异的重量分布以及在实际聚合温度下具有高立体规整性的共聚物的制备方法。 本发明的主旨在于制备丙烯共聚物,其中与α,ω-二烯的共聚合是借助于主要由以下化合物(A),(B),(C)组成的负载型催化剂体系进行的, 化合物(A):由化合物(B)表示的特定茂金属化合物:铝氧烷,化合物(C):有机铝化合物和化合物(D):a 颗粒载体。本发明的丙烯共聚物的一个重要特征在于这样的事实:共聚物是高立构规整性的,并且在总丙烯插入中丙烯单体的2,1-插入比例为错误插入单元 在特定范围内定义。

    Propylene/ethylene/&agr;-olefin terpolymers and processes for the production thereof
    4.
    发明授权
    Propylene/ethylene/&agr;-olefin terpolymers and processes for the production thereof 失效
    丙烯/乙烯/α-烯烃三元共聚物及其制备方法

    公开(公告)号:US06388040B1

    公开(公告)日:2002-05-14

    申请号:US09421329

    申请日:1999-10-18

    IPC分类号: C08F21000

    摘要: A propylene/ethylene/&agr;-olefin terpolymer characterized in that i) there is from 0.01 mol % to less than 15 mol % of a comonomer unit with a molar ratio of ethylene units/C4-C20 &agr;-olefin units being in the range of from 6.5×10−4 to 0.99, and from more than 85 mol % to not more than 99.99 mol % of a propylene unit with 2,1- and 1,3-propylene units being in the range of from 0 to 1 mol %, in a polymer chain determined by 13C-NMR spectroscopy; ii) a weight average molecular weight (Mw) determined by GPC is in the range of from 40,000 to 1,000,000; and iii) the amount of the component eluted in o-dichlorobenzene at a temperature of not higher than 40° C. is not more than 10 % by weight based on the total weight of the terpolymer and the amount of the component eluted in o-dichlorobenzene within the ±10° C. range of an elution peak temperature is not less than 75 % by weight based on the weight of the component eluted at a temperature of higher than 0° C.

    摘要翻译: 丙烯/乙烯/α-烯烃三元共聚物,其特征在于:)具有0.01摩尔%至小于15摩尔%的共聚单体单元,其中乙烯单元/ C 4 -C 20α-烯烃单元的摩尔比在 具有2,1-和1,3-丙烯单元的丙烯单元的摩尔比为6.5×10 -4〜0.99,以及大于85摩尔%以上且99.99摩尔%以下的丙烯单元,为0〜1摩尔% 通过13 C-NMR光谱测定的聚合物链; ii)通过GPC测定的重均分子量(Mw)在40,000至1,000,000的范围内; 和iii)在不高于40℃的温度下在邻二氯苯中洗脱的组分的量不超过基于三元共聚物的总重量的10重量%,并且在邻二氯苯中洗脱的组分的量 洗脱峰温度的±10℃范围内,在高于0℃的温度下洗脱的成分的重量为75重量%以上。

    Polydisperse propylene polymer and process for producing the same
    5.
    发明授权
    Polydisperse propylene polymer and process for producing the same 失效
    多分散丙烯聚合物及其制备方法

    公开(公告)号:US06441111B1

    公开(公告)日:2002-08-27

    申请号:US09485617

    申请日:2000-02-14

    IPC分类号: C08F1008

    摘要: A polydisperse propylene polymer characterized by being produced by polymerizing a propylene monomer or a mixed monomer of propylene and other olefin(s) by a multistage polymerization wherein the polymerization conditions are stepwise changed in the presence of a supported metallocene catalyst having a transition metal compound and an aluminoxane or a reaction product thereof supported on a finely particulate support, and an organoaluminum compound as a scavenger, and by having a ratio of a weight-average molecular weight to a number-average molecular weight (Mw/Mn) of 4.0 or higher, a melting point (Tm) of 165° C. or lower and a difference between the melting point (Tm) and a heat distortion temperature (HDT) of 30° C. or less.

    摘要翻译: 一种多分散丙烯聚合物,其特征在于通过多级聚合使丙烯单体或丙烯与其它烯烃的混合单体聚合而制备,其中聚合条件在具有过渡金属化合物的负载金属茂催化剂存在下逐步改变, 负载在细颗粒载体上的铝氧烷或其反应产物和作为清除剂的有机铝化合物,并且通过使重均分子量与数均分子量(Mw / Mn)之比为4.0以上 ,熔点(Tm)为165℃以下,熔点(Tm)与热变形温度(HDT)的差为30℃以下。