-
1.发明公开Use of anti-statics to prevent the formation of deposits during manufacture of ethylen polymers in a gas-phase reactor 无效在气相反应器中制造乙烯聚合物期间使用抗静电剂防止沉积物形成
公开(公告)号：EP0229368A3
公开(公告)日：1987-09-30
申请号：EP86117827
申请日：1986-12-20
发明人： Bullack, Horst , Oeder, Dieter, Dr. , Bell, Hans
CPC分类号： C08F10/00 , C08F10/02 , C08F210/16 , C08F2/34 , C08F2/002 , C08F2/44 , C08F210/08 , C08F2500/12
-
2.发明公开
公开(公告)号：EP0232701A3
公开(公告)日：1987-09-23
申请号：EP87100042
申请日：1987-01-03
CPC分类号： C08F10/00 , C08F10/02 , C08F110/02 , C08F2/44
-
3.发明公开Apparatus for the transformation of gases with gases or solids into temperature-sensitive solids in a fluidized bed 失效用于将气体与气体转化为流化床中的温度敏感性固体的装置
公开(公告)号：EP0101893A3
公开(公告)日：1985-05-15
申请号：EP83107141
申请日：1983-07-21
CPC分类号： C08F8/20 , B01J8/24 , B01J8/245 , B01J2208/00132 , B01J2208/00141 , B01J2219/0002
-
公开(公告)号：EP0126216A3
公开(公告)日：1985-05-15
申请号：EP84101830
申请日：1984-02-22
申请人： PENNWALT CORPORATION
发明人： Sanchez, Jose
IPC分类号： C07C179/18 , C08F02/34 , C08F283/00
CPC分类号： C07C409/38
摘要： Hydroxy-t-alkyl peroxyesters having the general structure
where R, R 1 , R 2 , R, and R 4 can be alkyl moieties and having 10 hour half-life temperatures below about 75°C (for example, 3-hydroxy-1,1-dimethylbutyl peroxy-neodecanoate) are described. These peroxyesters are used as initiators for vinyl monomer polymerization and as catalysts for curing unsaturated polyester resins in order to improve the efficiency of the systems.-
公开(公告)号：EP0088638A3
公开(公告)日：1983-11-09
申请号：EP83301306
申请日：1983-03-09
申请人： Montedison S.p.A.
CPC分类号： B01J8/1827 , B01J8/1818 , B01J2208/00274 , B01J2219/1946 , C08F10/00 , C08F2/34
摘要： A fluidized bed reactor (1), suitable for recycling a fluidization gas containing in suspension particles of solid material, has a gas distributor (13) consisting of a double-coned body or of a series of concentric cones provided on their lateral surfaces with ribs or fins (18) forming gas inflow channels (19) shaped in such a way and with such an inclination as to allow the passage of the solid particles dragged along by the gas flow, and such as to hinder the outflow of the solid material that has been fluidized, when the flow of the gas is interrupted.
-
6.发明公开Exothermic polymerization in a vertical fluid bed reactor system containing cooling means therein and apparatus therefor 失效包含其冷却装置的垂直流体反应器系统中的外部聚合及其装置
公开(公告)号：EP0004966A3
公开(公告)日：1979-11-14
申请号：EP79101169
申请日：1979-04-17
CPC分类号： B01J8/24 , B01J8/1836 , B01J2208/00141 , C08F10/00 , C08F2/34
摘要： A continuous low pressure gas phase process for the production of solid particulate polymers during an exothermic polymerization reaction in a uniform diameter vertical fluidized bed reactor system which comprises feeding a polymerization catalyst and a gaseous stream containing at least one polymerizable monomer to a fluidized bed of polymer particles and removing the exothermic heat of reaction by indirect cooling means in the reactor and removing dry particulate polymer. Also, apparatus for the polymerization process is described. This application is a Continuation-in-Part of Patent Application Serial No. 897,512, filed April 18, 1978.
-
7.发明公开Low pressure preparation of ethylene copolymers in fluid bed reactor, copolymers obtained and films made therefrom 失效流化床反应器中乙烯共聚物的低压制备，获得的共聚物和膜的膜
公开(公告)号：EP0004645A3
公开(公告)日：1979-10-31
申请号：EP79100953
申请日：1979-03-30
发明人： Karol, Frederick John , Goeke, George Leonard , Wagner, Burkhard Eric , Frazer, William Allen , Jorgensen, Robert James , Friis, Nils
IPC分类号： C08F210/16 , C08F04/64 , C08F02/34
CPC分类号： C08F210/16 , C08F2410/01 , C08F4/6425 , C08F2/34
摘要： Ethylene copolymers having a density of ≥ 0.91 to ≤ 0.96 and a melt flow ratio of ≥ 22 to ≤ 32 are readily produced in a low pressure gas phase process at a productivity of ≥ 50,000 pounds of polymer per pound of Ti with a particulate catalyst diluted with an inert carrier material and formed from selected organo aluminum compounds and a precursor composition of the formula:
wherein ED is a selected electron donor compound.
m is ≥ 0.5 to ≤ 56 n is 0 or 1 p is ≥ 6 to ≤ 116 q is ≥ 2 to ≤ 85 R is a C 1 to C 14 aliphatic or aromatic hydrocarbon radical, or COR' wherein R' is a C, to C 14 aliphatic or aromatic hydrocarbon radical, and X is selected from the group consisting of Cl, Br, I or mixtures thereof. This application is a Continuation-in-Part of co-pending application Serial No. 892,325 filed March 31, 1978.摘要翻译： 在低压气相法中容易产生密度≥0.91〜0.96，熔体流动比> 22 = 32的乙烯共聚物，生产率≥50万磅 聚合物每磅Ti与用惰性载体材料稀释并由选定的有机铝化合物和下式的前体组合物MgMTi1（OR）nXp [ED] q形成的颗粒催化剂形成，其中ED是选择的电子给体化合物。 m为≥0.5至 / = 6至 / = 2至
-
8.发明公开
公开(公告)号：EP0241947A3
公开(公告)日：1987-11-25
申请号：EP87106294
申请日：1983-03-23
CPC分类号： B01J8/1809 , B01J8/1836 , B01J2208/00017 , B01J2208/00256 , B01J2208/00274 , B01J2208/00292 , B01J2208/00371 , B01J2208/00761 , C08F10/00 , C08F2/34
摘要： A process is described for a method for controlling the temperature of a fluidized bed during the production of polymers in a fluidized bed reactor by an exothermic polymerization reaction, which comprises continuously introducing into the bed a stream of gas cooled to below the maximum desired temperature within said bed and simultaneously or separately introducing a stream of liquid into said reactor under conditions such that an essentially uniform two-phase mixture of said gas and liquid is introduced in said bed at a level below the region of maximum desired temperature within said reactor. This invention also refers to a process for producing polymers from one or more monomers by an exothermic polymerization reaction in a fluidized bed reactor in which the way of operation mentioned above is performed.
-
公开(公告)号：EP0188125A3
公开(公告)日：1987-09-16
申请号：EP85309355
申请日：1985-12-20
发明人： Hagerty, Robert Olds
CPC分类号： B01J8/003 , B01J8/24 , B01J2208/00761 , C08F10/00 , C08F2/34
摘要： A fluidized bed olefin polymerization process incorporates a recycle of a vent gas, containing unreacted monomers, from the product purge bin vessel to the polymerization reactor. The recycle of the vent gas minimizes the loss of unpolymerized reactants, thereby decreasing overall process and product costs.
-
10.发明公开Catalyst and method of preparation and use thereof for polymerizing alpha-olefins 失效催化剂及其制备方法及其用于聚合α-烯烃的方法
公开(公告)号：EP0160413A3
公开(公告)日：1987-03-11
申请号：EP85302329
申请日：1985-04-03
CPC分类号： C08F10/00 , C08F4/6546 , C08F4/6557
摘要： A catalyst composition for polymerizing alpha-olefins is prepared by treating a carrier containing OH groups with an organomagnesium composition and contacting the thus- formed magnesium-containing carrier with a solution of a titanium (IV) alkoxide and a brominating and/or chlorinating agent. The adjustment of the molar ratio of the brominating and/or chlorinating agent to the titanium alkoxide yields catalysts which produce polymers of varying molecular weight distribution, as measured by the melt flow ratio (MFR) values.
-
-
-
-
-
-
-
-
-
搜索结果
34 条记录 (耗时 0.007 秒)
