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    • 14. 发明授权
    • Process for producing a propylene-ethylene copolymer having improved
stretchability
    • 制备具有改善的拉伸性的丙烯 - 乙烯共聚物的方法
    • US4355144A
    • 1982-10-19
    • US257431
    • 1981-04-24
    • Akinobu ShigaKiyoshi MatsuyamaMasahiro KakugoYukio NaitoSeiichiro ImaKatsuyoshi Yamashita
    • Akinobu ShigaKiyoshi MatsuyamaMasahiro KakugoYukio NaitoSeiichiro ImaKatsuyoshi Yamashita
    • C08F4/00C08F2/00C08F4/60C08F4/64C08F10/00C08F10/06C08F210/00C08F210/06C08F210/16
    • C08F210/06
    • 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.
    • 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。
    • 18. 发明授权
    • Process for the production of purified propylene homopolymers or
copolymers
    • 制备纯化丙烯均聚物或共聚物的方法
    • US4461881A
    • 1984-07-24
    • US314344
    • 1981-10-23
    • Akinobu ShigaKiyoshi MatsuyamaMasahiro KakugoYukio NaitoTakatoshi Suzuki
    • Akinobu ShigaKiyoshi MatsuyamaMasahiro KakugoYukio NaitoTakatoshi Suzuki
    • C08F6/00C08F6/02C08F6/06C08F10/06C08F6/08C08F4/64
    • C08F6/02C08F10/00C08F10/06
    • 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.
    • 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 。
    • 20. 发明授权
    • Process for refining a homopolymer of copolymer of propylene
    • 精制丙烯共聚物均聚物的方法
    • US4182852A
    • 1980-01-08
    • US881314
    • 1978-02-27
    • Akinobu ShigaKiyoshi MatsuyamaMasahiro KakugoTakatoshi Suzuki
    • Akinobu ShigaKiyoshi MatsuyamaMasahiro KakugoTakatoshi Suzuki
    • C08F2/00C08F2/02C08F6/00C08F6/02C08F6/06C08F6/28
    • C08F6/02
    • In a process for producing a propylene homopolymer or copolymer which comprises polymerizing propylene or copolymerizing propylene and at least one other unsaturated hydrocarbon monomer in liquid propylene using a catalyst comprising activated titanium trichloride and an organo-aluminum compound, the activated titanium trichloride being prepared by reducing titanium tetrachloride with an organo-aluminum compound followed by activation, introducing the polymer slurry produced into the top of a counter-current washing tower, and washing the slurry by bringing the slurry into counter-current contact with liquid propylene which is introduced into the bottom of the washing tower, the improvement which comprises refining the homopolymer or copolymer of propylene by feeding (a) an alcohol having 3 to 8 carbon atoms in a molar amount of about 0.1 to about 10 times the molar amount of the organo-aluminum compound in the slurry, or (b) a mixture of an alcohol having 3 to 8 carbon atoms and an epoxide, the molar amount of the alcohol being about 0.1 to about 10 times the molar amount of the organo-aluminum compound in the slurry and the molar amount of the epoxide compound being about 0.1 to about 3 times the molar amount of the organo-aluminum compound in the slurry, to a part of the washing tower, thereby simultaneously deactivating the catalyst and removing the catalyst and the propylene homopolymer or copolymer dissolved in the polymer slurry.
    • 在制备丙烯均聚物或共聚物的方法中,包括使用包含活性三氯化钛和有机铝化合物的催化剂聚合丙烯或使丙烯与液体丙烯中的至少一种其它不饱和烃单体共聚,活化的三氯化钛通过还原 将四氯化钛与有机铝化合物接触,然后活化,将产生的聚合物浆料引入逆流洗涤塔的顶部,并通过使浆料与导入底部的液体丙烯逆流接触来洗涤浆料 的改进,其包括通过将(a)具有3-8个碳原子的醇以摩尔量为有机铝化合物的摩尔量的约0.1至约10倍的量来提炼丙烯的均聚物或共聚物 浆料,或(b)具有3至8个碳原子的醇和ep的醇的混合物 氧化物,醇的摩尔量为浆料中有机铝化合物的摩尔量的约0.1至约10倍,环氧化合物的摩尔量为有机铝的摩尔量的约0.1至约3倍 将该浆料中的化合物加入到洗涤塔的一部分中,从而同时使催化剂失活并除去溶解在聚合物浆料中的催化剂和丙烯均聚物或共聚物。