-
公开(公告)号：US3817970A
公开(公告)日：1974-06-18
申请号：US25134272
申请日：1972-05-08
Applicant: BASF AG
Inventor： MUELLER TAMM H , KOLK E , FRIELINGSDORF H , NICKL J
IPC: C08F10/00 , C08F10/02 , C08F110/02 , C08F1/56 , C08F3/06
CPC classification number: C08F10/02 , C08F10/00 , C08F110/02 , Y10S526/904 , C08F4/629 , C08F4/638 , C08F2500/24
Abstract: Manufacture of particulate polyethylene by polymerizing ethylene in an agitated bed of dry particulate polyethylene by means of a catalyst system comprising (1) a particulate inorganic carrier and (2) a Ziegler catalyst applied to said carrier. The catalyst system is used in the form of an intimate mixture of the catalyst system with a particulate ethylene polymer which does not soften at the polymerization temperature used, the particles in said mixture being coated with a saturated hydrocarbon wax which is solid at 30*C but liquid at the polymerization temperature used. This process makes it possible to obtain particulate polyethylene having a desirable particle size distribution.
Abstract translation: 通过催化剂体系在干燥颗粒状聚乙烯的搅拌床中聚合乙烯来制造颗粒状聚乙烯，所述催化剂体系包含（1）颗粒状无机载体和（2）应用于所述载体的齐格勒催化剂。 催化剂体系以催化剂体系与不使用的聚合温度下不软化的颗粒状乙烯聚合物的紧密混合物的形式使用，所述混合物中的颗粒涂覆有在30℃下为固体的饱和烃蜡 但在使用的聚合温度下为液体。 该方法可以获得具有所需粒度分布的颗粒状聚乙烯。
-
公开(公告)号：US3817969A
公开(公告)日：1974-06-18
申请号：US25134172
申请日：1972-05-08
Applicant: BASF AG
Inventor： MUELLER TAMM H , KOLK E , FRIELINGSDORF H , NICKL J
IPC: C08F10/00 , C08F10/02 , C08F110/02 , C08F1/56 , C08F3/06
CPC classification number: C08F10/02 , C08F10/00 , C08F110/02 , Y10S526/904 , Y10S526/909 , C08F4/638 , C08F4/629 , C08F2500/24
Abstract: Manufacture of particulate polyethylene by polymerizing ethylene in an agitated bed of dry particulate polyethylene by means of a catalyst system comprising (1) a particulate inorganic carrier and (2) a Ziegler catalyst applied to said carrier. The catalyst system is used in the form of an intimate mixture of the catalyst system with a particulate ethylene polymer having a softening point above the polymerization temperature used, the particles in said mixture being coated with an inert organic material which is solid at 30*C but liquid at the polymerization temperature used. This process makes it possible to obtain particulate polyethylene having a desirable particle size distribution.
Abstract translation: 通过催化剂体系在干燥颗粒状聚乙烯的搅拌床中聚合乙烯来制造颗粒状聚乙烯，所述催化剂体系包含（1）颗粒状无机载体和（2）应用于所述载体的齐格勒催化剂。 催化剂体系以催化剂体系与软化点高于所用聚合温度的颗粒状乙烯聚合物的紧密混合物的形式使用，所述混合物中的颗粒用在30℃下为固体的惰性有机材料 但在使用的聚合温度下为液体。 该方法可以获得具有所需粒度分布的颗粒状聚乙烯。
-
公开(公告)号：US3809657A
公开(公告)日：1974-05-07
申请号：US28047772
申请日：1972-08-14
Applicant: BASF AG
Inventor： MUELLER TAMM H , NICKL J , SCHWEIER G , URBAN F , FRIELINGSDORF H , KOHNLE J
Abstract: CATALYST SYSTEM FOR THE POLYMERIZATION OF OLEFINS CONSISTING OF (1) A POWDERED INORGANIC CARRIER AND, APPLIED THERETO, (2) A ZEIGLER-TYPE CATALYST CONSISTING OF (2,1) A COMPONENT SELECTED FROM THE GROUP CONSISTING OF CHLORIDES, OXYCHLORIDES AND ALKOXYCHLORIDES OF TITANIUM, ZIRCONIUM AND VANADIUM AND (2.2) A COMPONENT SELECTED FROM THE GROUP CONSISTING OF SATURATED METAL ALKYLS, SATURATED METAL ALKOXYALKLS AND SATURATED METAL ALKYL HALIDES OF THE METALS ALUMINUM, MAGESIUM AND ZIND. THE CHARACTERIZING FEATURE OF THE CATALYST SYSTEM OF THE INVENTION IS THAT THE CARRIER (1) HAS BEEN OBTAINED BY HEATING A SUBSTANCE OF THE FORMULA
,H MG(SN(OH)6)
THIS CATALYST SYSTEM IS VERY EFFLICIENT AND ENABLES THE MOLECULAR WEIGHT OF THE POLYMERS TO BE WELL REGUALTED BY MEANS OF HYDROGEN.
-
-
Search Results
3
records
(took 0.009 seconds)
