公开(公告)号：US4433121A

公开(公告)日：1984-02-21

申请号：US395472

申请日：1982-07-06

申请人： Yasunori Kabu ,  Masayoshi Yasunaka ,  Yoshinori Morita ,  Masanori Motowoka

发明人： Yasunori Kabu ,  Masayoshi Yasunaka ,  Yoshinori Morita ,  Masanori Motowoka

IPC分类号： C08F2/00 ,  C08F2/04 ,  C08F2/06 ,  C08F4/62 ,  C08F10/00 ,  C08F210/16

CPC分类号： C08F10/00 ,  C08F10/02 ,  C08F210/16

摘要： In a process for polymerizing a monomer capable of being formed, upon polymerization, into a solution having an upper cloud point of the corresponding polymer in a reaction medium being liquid under the reaction conditions, the polymerization being carried out under such conditions that the resulting polymer dissolves in the reaction medium; the improvement wherein(i) the polymerization is carried out in a polymerization zone at a temperature above the upper cloud point of said polymer solution and under conditions which enable the polymer solution to be separated into two phases,(ii) the polymerization is carried out under stirring conditions which maintain the two phases under said phase-separating conditions in a dispersed and mixed state, and(iii) the resulting polymer solution is sent to a separating zone located independently of said polymerization zone, thereby separating it into two phases in the separating zone at a temperature above the upper cloud point, and thereafter, the polymer-rich liquid phase as a lower layer is recovered while the polymer-lean liquid phase as an upper layer is recycled to the polymerization zone.

摘要翻译： 在能够形成的单体聚合的过程中，在反应介质中在反应介质中具有相应聚合物的上部浊点为液体的溶液中，在这样的条件下进行聚合，所得聚合物 溶解在反应介质中; 其改进在于（i）聚合反应在聚合反应区中在高于所述聚合物溶液的上部浊点的温度下进行，并且使聚合物溶液能够分离成两相，（ii）进行聚合 在分散和混合状态下在所述相分离条件下保持两相的搅拌条件下，和（iii）将得到的聚合物溶液送至与所述聚合区无关的分离区，从而将其分离成两相 在高于上部浊点的温度下分离区，然后回收富含聚合物的液相作为下层，而作为上层的贫聚合物液相再循环至聚合区。

公开(公告)号：US4338424A

公开(公告)日：1982-07-06

申请号：US266594

申请日：1981-05-22

申请人： Yoshinori Morita ,  Akifumi Kato ,  Ryoichi Yamamoto

发明人： Yoshinori Morita ,  Akifumi Kato ,  Ryoichi Yamamoto

IPC分类号： C08F2/00 ,  B01J8/26 ,  C08F2/34 ,  C08F2/38 ,  C08F4/62 ,  C08F10/00 ,  C08F210/16

CPC分类号： C08F10/00 ,  B01J8/26 ,  C08F4/62 ,  Y10S526/901 ,  Y10S526/905

摘要： In a process for polymerizing olefins in the gaseous phase in a first gas-phase polymerization zone and a second gas-phase polymerization zone, which are provided independently from each other, in the presence of a catalyst composed of a transition metal catalyst component and an organometallic compound of a metal of Groups I to III of the periodic table and in the co-presence of hydrogen gas while feeding the catalyst-containing polymer formed in the first zone to the second zone; the improvement wherein(i) a dilution zone for diluting a feed flow from the first gas-phase polymerization zone which comprises a mixture of the polymer, the catalyst, the olefin gas and hydrogen gas by feeding a fresh supply of olefin gas thereto is provided in a feed passage for feeding said flow from the first gas-phase polymerization zone to the second gas-phase polymerization zone,(ii) a part of the gas phase in said feed flow diluted in the dilution zone is recycled to the first gas-phase polymerization zone, and remainder is fed into the second gas-phase polymerization zone, and(iii) in the second gas-phase polymerization zone, the hydrogen to olefin mole ratio is maintained lower than that in the first gas-phase polymerization zone.

摘要翻译： 在由过渡金属催化剂组分和催化剂组成的催化剂存在下在第一气相聚合区和第二气相聚合区中彼此独立地提供的在气相中聚合烯烃的方法中， 周期表第I至III族金属的有机金属化合物和在第一区中形成的含催化剂的聚合物进料到第二区的同时存在氢气; 提供了一种改进，其中（i）提供了稀释区，用于通过向其中供给新鲜的烯烃气体供应来稀释来自第一气相聚合区的进料流，该第一气相聚合区包括聚合物，催化剂，烯烃气体和氢气的混合物， 在从第一气相聚合区向第二气相聚合区供给所述流的进料通道中，（ii）稀释在稀释区中的所述进料流中的一部分气相再循环至第一气相聚合区， 相位聚合区，其余部分进料到第二气相聚合区，（iii）在第二气相聚合区中，氢与烯烃的摩尔比保持低于第一气相聚合区。

公开(公告)号：US4298713A

公开(公告)日：1981-11-03

申请号：US106736

申请日：1979-12-26

申请人： Yoshinori Morita ,  Akinori Toyota ,  Norio Kashiwa

发明人： Yoshinori Morita ,  Akinori Toyota ,  Norio Kashiwa

IPC分类号： C08F2/00 ,  C08F2/04 ,  C08F2/06 ,  C08F4/00 ,  C08F4/60 ,  C08F4/64 ,  C08F210/00 ,  C08F210/16 ,  C08F297/08 ,  C08F4/16

CPC分类号： C08F297/08 ,  C08F210/16 ,  Y10S526/904

摘要： A process for producing an ethylene copolymer having a density of from 0.900 to 0.945 g/cm.sup.3 by copolymerizing in two steps a predominant amount of ethylene with a minor amount of an alpha-olefin containing at least 3 carbon atoms at room temperature to not more than about 100.degree. C. under a pressure of about 1 to about 100 kg/cm.sup.2 in the presence of a catalyst composed of (A) a titanium catalyst component supported on a magnesium compound and (B) an organoaluminum compound; characterized in that said copolymerization is carried out in(i) a first step where about 0.01 to about 50 g, per gram of the titanium catalyst component (A), of the alpha-olefin containing at least 3 carbon atoms is polymerized, said catalyst further comprising an organic acid ester (C), and then(ii) a second step where the final product of ethylene copolymer is formed in an amount more than about 100 times the weight of the polymer formed in the first step.

摘要翻译： 一种制备密度为0.900至0.945g / cm 3的乙烯共聚物的方法，通过在室温下将主要量的乙烯与少量含有至少3个碳原子的α-烯烃在两个步骤中共聚合成不超过 在（A）负载在镁化合物上的钛催化剂组分和（B）有机铝化合物组成的催化剂存在下，在约1至约100kg / cm2的压力下，约100℃。 其特征在于所述共聚在（i）第一步骤中进行，其中每克所述钛催化剂组分（A）中含有至少3个碳原子的α-烯烃聚合约0.01至约50g，所述催化剂 进一步包含有机酸酯（C），然后（ii）第二步，其中乙烯共聚物的最终产物的形成量大于第一步中形成的聚合物重量的约100倍。