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1. 发明授权

US4582878A High-rigidity ethylene-propylene copolymer and process for producing same 失效
标题翻译：高刚性乙烯 - 丙烯共聚物及其制备方法
公开(公告)号：US4582878A
公开(公告)日：1986-04-15
申请号：US634311
申请日：1984-07-25
申请人： Hiromasa Chiba , Katsumi Kumahara , Takakiyo Harada , Takahiro Oka , Akihiro Sato
发明人： Hiromasa Chiba , Katsumi Kumahara , Takakiyo Harada , Takahiro Oka , Akihiro Sato
IPC分类号： C08F4/00 , C08F2/00 , C08F4/60 , C08F4/64 , C08F4/642 , C08F4/658 , C08F210/00 , C08F210/16 , C08F297/00 , C08F297/08
CPC分类号： C08F297/086 , Y10S436/813
摘要： A high-rigidity, whitening-resistant ethylene-propylene copolymer is provided, which is obtained by copolymerizing propylene with ethylene at three successive stages wherein at the respective first, second and third stages, a copolymer fraction having a specified ethylene content is formed in a specified amount based on the total polymerization amount, in the presence of a catalyst obtained by reacting an organoaluminum compound (L) or a reaction product thereof with an electron donor (E) with TiCl.sub.4 ; reacting the resulting solid product (I) with an (E) and an electron acceptor; and combining the resulting solid product (II) with an (L) and an aromatic carboxylic acid ester (R), the molar ratio of (R) to (II) being specified, and in the presence of hydrogen.
摘要翻译：提供了一种高刚性，耐白化的乙烯 - 丙烯共聚物，其通过在连续三个阶段将丙烯与乙烯共聚而获得，其中在相应的第一，第二和第三阶段，具有特定乙烯含量的共聚物部分形成在在通过有机铝化合物（L）或其与电子给体（E）的反应产物与TiCl 4反应获得的催化剂存在下，基于总聚合量的指定量; 使得到的固体产物（I）与（E）和电子受体反应; 并将得到的固体产物（II）与（L）和芳族羧酸酯（R），（R）与（II）的摩尔比规定并且在氢的存在下混合。

2. 发明授权

US4526931A Whitening-resistant, highly melt-viscoelastic ethylene-propylene copolymer and process for producing the same 失效
标题翻译：美白抗高熔体粘弹性乙烯 - 丙烯共聚物及其制造方法
公开(公告)号：US4526931A
公开(公告)日：1985-07-02
申请号：US658868
申请日：1984-10-09
申请人： Hiromasa Chiba , Takakiyo Harada , Katsumi Kumahara , Shunji Kawazoe , Akihiro Sato
发明人： Hiromasa Chiba , Takakiyo Harada , Katsumi Kumahara , Shunji Kawazoe , Akihiro Sato
IPC分类号： C08F4/00 , C08F4/42 , C08F4/60 , C08F4/64 , C08F4/80 , C08F297/00 , C08F297/08
CPC分类号： C08F297/086
摘要： A whitening-resistant, highly melt-viscoelastic ethylene-propylene copolymer and process for producing the same are provided, which copolymer is produced by copolymerizing ethylene with propylene in the presence of a specified stereoregular catalyst and at four stages under specified conditions, the catalyst being prepared by reacting an organoaluminum compound or its reaction product with an electron donor, with TiCl.sub.4, reacting the resulting solid product with an electron donor and an electron acceptor, and combining the resulting solid product with an organo-aluminum compound and an aromatic carboxylic acid ester so as to give a specified ratio, and at the four stages, the ethylene contents in monomers fed, the proportion of polymerization amounts and the intrinsic viscosities of polymers formed being specified.
摘要翻译：提供了耐白化，高熔体 - 粘弹性的乙烯 - 丙烯共聚物及其制备方法，该共聚物是通过在规定的立构规则催化剂的存在下和乙烯与丙烯共聚制备的，并且在特定条件下分四阶段通过使有机铝化合物或其反应产物与电子给体反应制备，与TiCl 4反应，使得到的固体产物与电子给体和电子受体反应，并将得到的固体产物与有机铝化合物和芳族羧酸酯以提供规定的比例，并且在四个阶段中，单体进料中的乙烯含量，聚合量的比例和形成的聚合物的特性粘度被规定。

3. 发明授权

US4522994A Polypropylene resin for high-rigidity molded products 失效
标题翻译：用于高刚性模制产品的聚丙烯树脂
公开(公告)号：US4522994A
公开(公告)日：1985-06-11
申请号：US449857
申请日：1982-12-15
申请人： Hiromasa Chiba , Katsumi Kumahara , Takakiyo Harada , Takahiro Oka , Akihiro Sato
发明人： Hiromasa Chiba , Katsumi Kumahara , Takakiyo Harada , Takahiro Oka , Akihiro Sato
IPC分类号： C08F4/00 , C08F4/60 , C08F4/658 , C08F8/00 , C08F10/00 , C08F110/06 , C08F10/06
CPC分类号： C08F110/06
摘要： A polypropylene resin from which high-rigidity molded products can be produced even when no particular additive is added, is provided, which resin has a melt rate of 0.1 to 100, a density of 0.905 to 0.936, and a boiling n-heptane-insoluble part whose isotactic pentad ratio (P.sub.o) is 0.975 to 0.995, and whose pentad ratio (P.sub.2) having two different kinds of configurations of 0.002 to 0.000%, and preferably has a melting point of 165.degree. to 170.degree. C. as measured by differential scanning calorimetry.
摘要翻译：即使没有添加特定的添加剂，也可以制造高刚性成型体的聚丙烯树脂，该树脂的熔融比为0.1〜100，密度为0.905〜0.936，沸腾正庚烷不溶其全同立构五价比（Po）为0.975〜0.995的部分，其两种不同构型的五价比（P2）为0.002〜0.000％，优选熔点为165〜170℃。扫描量热法。

4. 发明授权

US4550144A Propylene-ethylene copolymers for high-rigidity molded products and process for producing the same 失效
标题翻译：用于高刚性模制产品的丙烯 - 乙烯共聚物及其制备方法
公开(公告)号：US4550144A
公开(公告)日：1985-10-29
申请号：US495654
申请日：1983-05-18
申请人： Hiromasa Chiba , Katsumi Kumahara , Takakiyo Harada , Takahiro Oka , Akihiro Sato
发明人： Hiromasa Chiba , Katsumi Kumahara , Takakiyo Harada , Takahiro Oka , Akihiro Sato
IPC分类号： C08F4/00 , C08F4/42 , C08F4/60 , C08F4/64 , C08F297/00 , C08F297/08
CPC分类号： C08F297/083
摘要： A propylene-ethylene block copolymer from which molded products having high rigidity and superior high-impact properties can be prepared even without adding any particular additive, is provided, which copolymer is obtained by (i) polymerizing propylene in 70 to 95 weight % based on the total polymerized amount, using a catalyst obtained by reacting an organoaluminum compound (I) or a reaction product of (I) with an electron donor (A), with TiCl.sub.4, further reacting the resulting solid product (II) with (A) and an electron acceptor (B), and combining the resulting solid product (III) with an organoaluminum compound (IV) and an aromatic carboxylic acid ester (V), the molar ratio of (V) to (III) being 0.1 to 10.0, and then (ii) polymerizing ethylene or ethylene and propylene in 30 to 5 weight % based on the total polymerized amount, at one or more stages, using the same catalyst as above, the ethylene content being 3 to 20 weight % based on the total polymerized amount.
摘要翻译：提供了一种丙烯 - 乙烯嵌段共聚物，其中即使不添加任何特定的添加剂，也可以制备具有高刚性和高冲击性的成型产品，该共聚物通过以下方法获得：（i）基于使用通过使有机铝化合物（I）或（I）的反应产物与电子给体（A）反应得到的催化剂与TiCl 4反应得到的固体产物（II）与（A）和电子受体（B），并将得到的固体产物（III）与有机铝化合物（IV）和芳族羧酸酯（V）组合，（V）与（III）的摩尔比为0.1-10.0，和然后（ii）使用与上述相同的催化剂在一个或多个阶段以30-5重量％的比例聚合乙烯或乙烯和丙烯，基于总聚合的乙烯含量为3-20重量％量。

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