Propylene-ethylene copolymer having improved stretchability
    11.
    发明授权
    Propylene-ethylene copolymer having improved stretchability 失效
    具有改善的拉伸性的丙烯 - 乙烯共聚物

    公开(公告)号:US4414373A

    公开(公告)日:1983-11-08

    申请号:US399146

    申请日:1982-07-16

    CPC分类号: C08F210/06

    摘要: In a process for producing polypropylene comprising polymerizing propylene in the presence of hydrogen and a catalyst system comprising (A) titanium trichloride obtained by reducing titanium tetrachloride with an organoaluminum compound and reacting the reduced solid with an ether represented by the formula:R.sup.1 --O--R.sup.2wherein R.sup.1 and R.sup.2 are defined hereinbefore, and a halogen compound selected from the group consisting of (i) halogen or interhalogen compounds of the formula, X.sup.1 X.sup.2.sub.a (wherein X.sup.1, X.sup.2 and a are defined hereinbefore), (ii) titanium halides, and (iii) organic halogen compounds, simultaneously or successively and (B) an organoaluminum compound, the improvement which comprises supplying ethylene together with propylene to the polymerization system such that the ethylene concentration in the vapor phase of the system based on the total amount of propylene, ethylene and hydrogen in the vapor phase of the system is 0.15 to 1.5 mol % to obtain a propylene-ethylene copolymer having an ethylene content of from 0.1 to 1.0 wt % is disclosed. The propylene-ethylene copolymer is improved in stretchability.

    摘要翻译: 在制备聚丙烯的方法中,包括在氢气存在下聚合丙烯和催化剂体系,所述催化剂体系包含(A)通过用有机铝化合物还原四氯化钛获得的三氯化钛,并将还原的固体与由下式表示的醚反应:R1-O- 其中R 1和R 2如上定义,卤素化合物选自(ⅰ)卤素或下式的卤代化合物:X1X2a(其中X1,X2和a定义如前),(ⅱ)卤化钛和 (iii)有机卤素化合物,同时或相继和(B)有机铝化合物,其改进包括将乙烯与丙烯一起供应到聚合体系中,使得基于丙烯总量的体系的气相中的乙烯浓度 ,系统的气相中的乙烯和氢为0.15〜1.5摩尔%,得到丙烯 - 乙烯共聚物 公开了乙烯含量为0.1〜1.0重量%。 丙烯 - 乙烯共聚物的拉伸性提高。

    Process for the production of purified propylene homopolymers or
copolymers
    13.
    发明授权
    Process for the production of purified propylene homopolymers or copolymers 失效
    制备纯化丙烯均聚物或共聚物的方法

    公开(公告)号:US4461881A

    公开(公告)日:1984-07-24

    申请号:US314344

    申请日:1981-10-23

    CPC分类号: C08F6/02 C08F10/00 C08F10/06

    摘要: In a process for producing a homopolymer or a copolymer of propylene comprising polymerizing propylene or copolymerizing propylene and at least one other unsaturated hydrocarbon monomer in liquid propylene using a catalyst system containing activated titanium trichloride (a) and an organoaluminum compound (b), the activated titanium trichloride (a) being prepared by reducing titanium tetrachloride with an organoaluminum compound followed by activation, to produce a polymer slurry; introducing the polymer slurry produced into the top of a counter-current washing tower; and washing the polymer slurry by counter-currently contacting the polymer slurry with liquid propylene introduced into the bottom of the washing tower, the improvement which comprises purifying the homopolymer or copolymer of propylene by feeding an epoxide in a molar amount of about 1 to about 15 times the molar amount of the total of activated titanium trichloride (a) and organoaluminum compound (b), to a part of said washing tower, thereby deactivating the catalyst and removing the catalyst residue and the homopolymer or copolymer of propylene dissolved in the polymer slurry.

    摘要翻译: 在使用包含活化的三氯化钛(a)和有机铝化合物(b)的催化剂体系的丙烯均聚物或共聚物的制备方法中,该方法包括聚合丙烯或使液体丙烯中的至少一种其它不饱和烃单体共聚, 三氯化钛(a)通过用有机铝化合物还原四氯化钛然后活化而制备,以产生聚合物浆料; 将产生的聚合物浆料引入逆流洗涤塔的顶部; 并且通过将聚合物浆料与引入洗涤塔底部的液态丙烯反向接触来洗涤聚合物浆料,其改进包括通过加入摩尔量为约1至约15的环氧化物纯化丙烯的均聚物或共聚物 倍的活化三氯化钛(a)和有机铝化合物(b)的总量的摩尔量与所述洗涤塔的一部分反应,从而使催化剂失活并除去溶解在聚合物浆料中的催化剂残余物和丙烯均聚物或共聚物 。

    Process for producing a propylene-ethylene copolymer having improved
stretchability
    15.
    发明授权
    Process for producing a propylene-ethylene copolymer having improved stretchability 失效
    制备具有改善的拉伸性的丙烯 - 乙烯共聚物的方法

    公开(公告)号:US4355144A

    公开(公告)日:1982-10-19

    申请号:US257431

    申请日:1981-04-24

    CPC分类号: C08F210/06

    摘要: In a process for producing polypropylene comprising polymerizing propylene in the presence of hydrogen and a catalyst system comprising (A) titanium trichloride obtained by reducing titanium tetrachloride with an organoaluminum compound and reacting the reduced solid with an ether represented by the formula:R.sup.1 -O-R.sup.2wherein R.sup.1 and R.sup.2 are defined hereinbefore, and a halogen compound selected from the group consisting of (i) halogen or interhalogen compounds of the formula, X.sup.1 X.sup.2.sub.a (wherein X.sup.1, X.sup.2 and a are defined hereinbefore), (ii) titanium halides, and (iii) organic halogen compounds, simultaneously or successively and (B) an organoaluminum compound, the improvement which comprises supplying ethylene together with propylene to the polymerization system such that the ethylene concentration in the vapor phase of the system based on the total amount of propylene, ethylene and hydrogen in the vapor phase of the system is 0.15 to 1.5 mol % to obtain a propylene-ethylene copolymer having an ethylene content of from 0.1 to 1.0 wt % is disclosed. The propylene-ethylene copolymer is improved in stretchability.

    摘要翻译: 在制备聚丙烯的方法中,包括在氢气存在下聚合丙烯和催化剂体系,所述催化剂体系包含(A)通过用有机铝化合物还原四氯化钛获得的三氯化钛,并将还原的固体与由下式表示的醚反应:R1-O- 其中R 1和R 2如上定义,卤素化合物选自(ⅰ)卤素或下式的卤代化合物:X1X2a(其中X1,X2和a定义如前),(ⅱ)卤化钛和 (iii)有机卤素化合物,同时或相继和(B)有机铝化合物,其改进包括将乙烯与丙烯一起供应到聚合体系中,使得基于丙烯总量的体系的气相中的乙烯浓度 ,系统的气相中的乙烯和氢为0.15〜1.5摩尔%,得到丙烯 - 乙烯共聚物 公开了乙烯含量为0.1〜1.0重量%。 丙烯 - 乙烯共聚物的拉伸性提高。

    Process for producing propylene-ethylene block copolymers
    17.
    发明授权
    Process for producing propylene-ethylene block copolymers 失效
    制备丙烯 - 乙烯嵌段共聚物的方法

    公开(公告)号:US4254237A

    公开(公告)日:1981-03-03

    申请号:US30523

    申请日:1979-04-16

    IPC分类号: C08F297/00 C08F297/08

    CPC分类号: C08F297/086

    摘要: A process for producing propylene-ethylene block copolymers by a three-step polymerization technique using a stereoregular catalyst, characterized in that the first-step polymerization is carried out by supplying propylene alone or a propylene/ethylene mixture so that the ethylene/propylene reaction ratio is 6/94 or less, thereby polymerizing 60 to 95% by weight of the total polymerization amount, the second-step polymerization is carried out by supplying a propylene/ethylene mixture so that the ethylene/propylene reaction ratio is 15/85 to 79/21, thereby polymerizing 1 to 20% by weight of the total polymerization amount, and the third-step polymerization is carried out by supplying a propylene/ethylene mixture so that the ethylene/propylene reaction ratio is 50/50 to 89/11, thereby polymerizing 4 to 35% by weight of the total polymerization amount, with the ethylene/propylene reaction ratio in the third step made larger than that in the second step. Said process can give propylene-ethylene block copolymers markedly well balanced in impact strength, stiffness, transparency and impact blushing.

    摘要翻译: 一种通过使用立体规则催化剂的三步聚合技术制备丙烯 - 乙烯嵌段共聚物的方法,其特征在于第一步聚合是通过仅供应丙烯或丙烯/乙烯混合物进行的,以使乙烯/丙烯反应比 为6/94以下,由此聚合60〜95重量%的总聚合量,第二步聚合是通过供给丙烯/乙烯混合物进行的,以使乙烯/丙烯反应比为15/85〜79 / 21,由此聚合1至20重量%的总聚合量,第三步聚合通过供应丙烯/乙烯混合物进行,使得乙烯/丙烯反应比为50/50至89/11, 从而聚合4〜35重量%的总聚合量,第3步骤中的乙烯/丙烯反应比例大于第2步骤。 所述方法可以使丙烯 - 乙烯嵌段共聚物在冲击强度,刚度,透明度和冲击冲刷中显着地平衡。

    Process for producing highly stereoregular .alpha.-olefin polymers
    19.
    发明授权
    Process for producing highly stereoregular .alpha.-olefin polymers 失效
    制备高度立构规则的α-烯烃聚合物的方法

    公开(公告)号:US4485035A

    公开(公告)日:1984-11-27

    申请号:US180305

    申请日:1980-08-22

    CPC分类号: C08F10/00

    摘要: A process for producing .alpha.-olefin polymers of a high stereoregularity which comprises homopolymerizing an .alpha.-olefin having 3 to 10 carbon atoms or copolymerizing said .alpha.-olefin with other olefins of the same group or with ethylene using a catalyst system comprising three components (A), (B) and (C):(A) a solid catalyst produced by reaction among a solid product described below, a compound group (III) comprising at least one compound having an O--C.dbd.O linkage and at least one compound having at least one member selected from C--O--H, C--O--C, C--N, C.tbd.N, N--O--C, P--O--C, P--N--C, C--S--H, C--S--C, S--O--C and P--S--C linkages, and a titanium compound having at least one titanium-halogen linkage, said solid product being prduced by reacting an organo-magnesium compound with at least one of the following halogen-containing compounds (I) and (II),(I) a halogeno-silicon compound of the formula, R.sub.n SiX.sub.4-n (in which R is a hydrocarbon group having 1 to 8 carbon atoms, X is a halogen atom and n is a number satisfying the equation, 0.ltoreq.n

    摘要翻译: 一种制备高立构规整性的α-烯烃聚合物的方法,其包括使具有3至10个碳原子的α-烯烃均聚或使用包含三种组分的催化剂体系(A ),(B)和(C):(A)通过下述固体产物之间的反应生成的固体催化剂,包含至少一种具有OC = O键的化合物的化合物组(III)和至少一种具有 选自COH,COC,CN,C 3BOND N,NOC,POC,PNC,CSH,CSC,SOC和PSC键的至少一种成员和具有至少一个钛 - 卤素键的钛化合物,所述固体产物通过 具有下述卤素化合物(I)和(II)中的至少一种的有机镁化合物,(I)下式的卤代硅化合物,R n SiX 4-n(其中R是烃基,具有1〜 8个碳原子,X是卤素原子,n 是满足方程式的数,0 <= n <4),(II)式为R 1 AlX 3 -1的卤代铝化合物(其中R是具有1至8个碳原子的烃基,X是卤素 原子和l是满足式(1)的数,0≤l≤3),(B)式R活化剂RmAlY3-m(其中R为碳原子数为1〜8的烃基,Y为 卤原子或氢原子,当Y为卤素原子时,m为满足式2,m为3的数,当Y为氢原子时,m为满足式2的数 (C)至少一个具有至少一个氮,氧,磷或硫原子的电子给体。

    Olefin polymerization catalyst
    20.
    发明授权
    Olefin polymerization catalyst 失效
    烯烃聚合催化剂

    公开(公告)号:US4246135A

    公开(公告)日:1981-01-20

    申请号:US41972

    申请日:1979-05-23

    CPC分类号: C08F10/00

    摘要: A process for producing a solid titanium trichloride catalyst which comprisesat a temperature of -40.degree. C. to 40.degree. C. mixing titanium tetrachloride with an organo-aluminum compound of the formula (I):AlR.sub.n X.sub.3-n (I) wherein R has up to 10 carbon atoms and is an aliphatic hydrocarbon group which may be straight chain, branched chain or cyclic, or an aromatic hydrocarbon group; X is a halogen atom or a hydrogen atom; and n is a number satisfying the relation, 1.5.ltoreq.n.ltoreq.3; in the presence of an ether compound of the formula (II):R.sup.2 OR.sup.3 (II) wherein R.sup.2 and R.sup.3, which may be the same or different, each is an alkyl group, an aralkyl group or an alkenyl group, each having up to 10 carbon atoms, to reduce the titanium tetrachloride; maintaining the mixed solution at a temperature of 10.degree. C. to 50.degree. C. thereby performing the reduction;at the time when the reduction reaction proceeds at least 90%, adding iodine to the resulting liquid titanium trichloride product;maintaining the resulting mixture at a temperature of about 30.degree. C. to about 150.degree. C. after the addition thereby precipitating solid titanium trichloride; and then separating the solid titanium trichloride.

    摘要翻译: 一种制备固体三氯化钛催化剂的方法,其包括在-40℃至40℃的温度下,将四氯化钛与式(I)的有机铝化合物:其中R具有的AlRnX 3-n(I) 最多10个碳原子,并且是可以是直链,支链或环状的脂族烃基或芳族烃基; X是卤素原子或氢原子; 并且n是满足关系式的数,1.5