公开(公告)号：US3635936A

公开(公告)日：1972-01-18

申请号：US3635936D

申请日：1969-10-20

Applicant: BASF AG

Inventor： GROPPER HANS ,  MIETZNER FRANZ ,  KINKEL KLAUS ,  URBAN FRIEDRICH

IPC: C08F2/00 ,  C08F10/00 ,  C08F3/04 ,  C08F1/60

CPC classification number: C08F10/00 ,  C08F4/28

Abstract: A PROCESS FOR THE PRODUCTION OF HOMOPOLYMERS OF ETHYLENE BY POLYMERIZATION OF ETHYLENE AT HIGH PRESSURE AND ELEVATED TEMPERATURE USING A MIXTURE OF A HYDROPERIOXIDE AND OXYGEN AS A POLYMERIZATION INITIATOR WITH OR WITHOUT A POLYMERIZATION REGULATOR. AN ESSENTIAL FEATURE OF THE PROCESS ACCORDING TO THE INVENTIONS IS THE USE OF HYDROPEROXIDES OF A SPECIALLY SELECTED CLASS OF COMPOUNDS.

公开(公告)号：US3691145A

公开(公告)日：1972-09-12

申请号：US3691145D

申请日：1970-08-06

Applicant: BASF AG

Inventor： GIERTH VOLKER ,  GROPPER HANS ,  MIETZNER FRANC GEORG ,  URBAN FRIEDRICH

IPC: C08F4/34 ,  C08F10/00 ,  C08F1/60 ,  C08F3/04

CPC classification number: C08F10/00 ,  C08F4/28

Abstract: Production of polyethylene by polymerizing ethylene at elevated temperatures and elevated pressure under the action of a polymerization initiator, consisting of oxygen and t-butyl hydroperoxide, and of a polymerization regulator. The process of the invention is characterized in that temperature ranging from 310* to 400*C are used and that the polymerization initiator consists of from 1 to 12 molar parts of oxygen and from 1 to 5 molar parts of t-butyl hydroperoxide per million molar parts of the ethylene being polymerized. The process of the invention is preferably carried out continuously in a tubular reactor. The process permits easy control of the reaction with high yields and provides products with high flexibility and elongation.

Abstract translation: 在聚合引发剂，由氧和叔丁基过氧化氢组成的聚合引发剂和聚合调节剂的作用下，在升高的温度和升高的压力下聚合乙烯生产聚乙烯。 本发明的方法的特征在于使用310至400℃的温度，聚合引发剂由1至12摩尔份氧和1至5摩尔份叔丁基过氧化氢每百万摩尔 部分乙烯被聚合。 本发明的方法优选在管式反应器中连续进行。 该方法允许以高产率容易地控制反应，并提供具有高柔性和伸长率的产品。

公开(公告)号：US3660370A

公开(公告)日：1972-05-02

申请号：US3660370D

申请日：1970-08-17

Applicant: BASF AG

Inventor： GROPPER HANS ,  STARK KURT ,  PFANNMUELLER HELMUT ,  URBAN FRIEDRICH

IPC: C08F10/00 ,  C08F3/04 ,  C08F1/60

CPC classification number: C08F10/00 ,  C08F4/28

Abstract: A PROCESS FOR POLYMERIZING ETHYLENE AT PRESSURES OF MORE THAN 1000 ATMOSPHERES AND AT TEMPERATURES OF FROM 150* TO 400*C. IN THE PRESENCE OF METHYL ISOBUTYL KETONE PEROXIDE. POLYETHYLENE HAVING A DENSITY OF FROM 0.924 TO 0.935 G/CCM. IS OBTAINED IN HIGHER YIELDS THAN IN CONVENTIONAL METHODS; IT IS USED FOR THE PRODUCTION OF TRANSPARENT FILM AND SHEETING.

公开(公告)号：US3664988A

公开(公告)日：1972-05-23

申请号：US3664988D

申请日：1969-12-05

Applicant: BASF AG

Inventor： TRIESCHMANN HANS-GEORG ,  PFANNMUELLER HELMUT ,  GROPPER HANS ,  GIERTH VOLKER ,  BECK GILBERT

IPC: C08F10/00 ,  C08F16/00 ,  C08F15/00 ,  C08F15/40

CPC classification number: C08F16/00 ,  C08F10/00 ,  C08F4/28

Abstract: A process for the production of ethylene copolymers containing hydroxyl groups which contain polymerized units of ethylene, an alkenol and if desired other monomers copolymerizable with ethylene, by copolymerization of a mixture of ethylene, alkenol and the other copolymerizable monomer(s), if any, at superatmospheric pressure and elevated temperature under the action of a free-radical polymerization initiator in the presence or absence of a polymerization regulator. 3-methyl-3-buten-1-ol is used as the alkenol. The process has the advantage that it is more easily carried out than comparable prior art methods and that it gives copolymers containing a relatively high proportion of polymerized units of alkenol.

公开(公告)号：US3642747A

公开(公告)日：1972-02-15

申请号：US3642747D

申请日：1969-08-27

Applicant: BASF AG

Inventor： GROPPER HANS ,  MIETZNER FRANZ GEORG ,  URBAN FRIEDRICH

IPC: C08F4/34 ,  C08F10/00 ,  C08F3/04 ,  C08F1/60

CPC classification number: C08F10/00 ,  C08F4/28

Abstract: PRODUCTION OF ETHYLENE HOMOPOLYMERS OR COPLYMERS BY POLYMERIZATION OF ETHYLENE OR OF MIXTURES OF MAJOR AMOUNTS OF ETHYLENE AND MINOR AMOUNTS OF OTHER MONOMERS AT SUPERATMOSPHERIC PRESSURE AND ELEVATED TEMPERATURE USING A POLYMERZATON INITIATOR. IT IS CHARACTERISTIC OF THE PROCESS ACCORDING TO THE INVENTIN THAT A 2-HYDROPEROXY-2-ISOPROPYLPHENYLPROPANE IS USED AS POLYMERIZATION INITIATOR.