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    Production of polyethylene by the high pressure process using a mixture of tertiary butyl hydroperoxide and oxygen as the initiator
    2.
    发明授权
    Production of polyethylene by the high pressure process using a mixture of tertiary butyl hydroperoxide and oxygen as the initiator 失效
    通过使用叔丁基氢过氧化物和氧气作为发动机的混合物通过高压过程生产聚乙烯

    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。

    Continuous production of ethylene homopolymers
    4.
    发明授权
    Continuous production of ethylene homopolymers 失效
    连续生产乙烯共聚物

    公开(公告)号：US3657211A

    公开(公告)日：1972-04-18

    申请号：US3657211D

    申请日：1970-02-11

    Applicant: BASF AG

    Inventor： STEIGERWALD KLAUS ,  BUECHNER OSKAR ,  URBAN FRIEDRICH ,  PFANNMUELLER HELMUT

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

    CPC classification number: C08F10/00 ,  C08F4/28

    Abstract: PRODUCTION OF ETHYLENE HOMOPLYMERS BY POLYMERIZATION OF ETHYLENE UNDER THE ACTION OF ORGANIC HYDROPEROXIDES AND OXYGEN AS FREE-RADICAL-GENERATING POLYMERIZATION INTIATORS AND POLYMERIZATION MODIFIRES AT ELEVATED TEMPERATURE AND SUPERATMOSPHERIC PRESSURE IN A TUBULAR REACTOR HAVING TWO SUCCESSIVE REACTION ZONES, A MIXTURE OF ETHYLENE, POLYMERIZATION INITIATOR AND POLYMERIZATION MODIFIER BEING INTRODUCED CONTINUOUSLY AT THE BEGINNING OF EACH REACTION ZONE. SPECIFIC TEMPERATURE CONDITIONS, A HYDROPEROXIDE HAVING A SPECIFIC RELATIVELY HIGH HALF VALUE TEMPERATURE AND A POLYMERIZATION MODIFIER HAVING A SPECIFIC RELATIVELY HIGH CS-VALUE ARE USED IN THE FIRST REACTION ZONE, AND SPECIFIC TEMPERATURE CONDITIONS, OXYGEN AND A POLYMERIZATION MODIIRE HAVING A SPECIFIC RELATIVELY HIGH CS-VALUE ARE EMPLOYED IN THE SECOND ZONE. THE ETHYLENE HOMOPOLYMERS OBTAINED HAVE A NARROW MOLECULAR WEIGHT DISTRIBUTION AND ARE PRACTICALLY DEVOID OF VERY HIGH MOLECULAR WEIGHT CONSTITUENTS.

    Continuous production of ethylene homopolymers
    6.
    发明授权
    Continuous production of ethylene homopolymers 失效
    连续生产乙烯均聚物

    公开(公告)号：US3917577A

    公开(公告)日：1975-11-04

    申请号：US17532471

    申请日：1971-08-26

    Applicant: BASF AG

    Inventor： TRIESCHMANN HANS-GEORG ,  PFANNMUELLER HELMUT ,  URBAN FRIEDRICH ,  BUECHNER OSKAR ,  STEIGERWALD KLAUS ,  BALL WOLFGANG

    IPC: C08F110/02 ,  C08F4/34 ,  C08F10/02

    CPC classification number: C08F110/02 ,  C08F2/34 ,  C08F2/38

    Abstract: A process for the continuous production of ethylene homopolymers by polymerization of ethylene by means of a polymerization initiator and a polymerization regulator at elevated temperature and superatmospheric pressure in a tubular reactor having two or three successive reaction zones, a mixture of ethylene, the polymerization initiator and the polymerization regulator being introduced continuously at the beginning of each reaction zone. It is characteristic of the process according to the invention that special conditions as regards temperature, pressure, polymerization initiator and polymerization regulator are maintained in the individual reaction zones.

    Abstract translation: 在具有两个或三个连续反应区域的管式反应器中，通过聚合引发剂和聚合调节剂在升高的温度和超大气压下聚合乙烯来连续生产乙烯均聚物的方法，乙烯，聚合引发剂和 聚合调节剂在每个反应区的开始处连续引入。 根据本发明的方法的特征在于，在各个反应区域中保持关于温度，压力，聚合引发剂和聚合调节剂的特殊条件。

    Continuous production of ethylene homopolymers
    8.
    发明授权
    Continuous production of ethylene homopolymers 失效

    公开(公告)号：US3702845A

    公开(公告)日：1972-11-14

    申请号：US3702845D

    申请日：1970-02-11

    Applicant: BASF AG

    Inventor： STEIGERWALD KLAUS ,  BUECHNER OSKAR ,  URBAN FRIEDRICH ,  PFANNMUELLER HELMUT

    IPC: C08F10/00 ,  C08F1/60 ,  C08F1/80 ,  C08F3/04

    CPC classification number: C08F10/00 ,  C08F4/28

    Abstract: PRODUCTION OF ETHYLENE HOMOPOLYMERS HAVING A SPECIFIC DENSITY BY POLYMERIZATION OF ETHYLENE UNDER THE ACTION OF ORGANIC PEROXIDES AND OXYGEN AS FREE-RADICAL-GENERATING POLYMERIZATION INITIATORS AND OF POLYMERIZATION MODIFIERS AT ELEVATED TEMPERATURE AND SUPERATMOSPHERIC PRESSURE IN A TUBULAR REACTOR HAVING TWO SUCCESSIVE REACTION ZONES, A MIXTURE OF ETHYLENE, POLYMERIZATION INITIATOR AND POLYMERIZATION MODIFIER BEING INTRODUCED CONTINUOUSLY AT THE BEGINNING OF EACH REACTION ZONE. OXYGEN AS POLYMERIZATION INITIATOR AND A MIXTURE OF A POLYMERIZATION MODIFIER HAVING A SPECIFIC RELATIVELY LOW C5 VALUE AND A POLYMERIZATION MODIFIER HAVING A SPECIFIC RELATIVELY HIGH C5 VALUE ARE USED IN THE FIRST REACTION ZONE, AND AN ORGANIC PEROZIDE HAVING A SPECIFIC HALF VALUE TEMPERATURE AS POLYMERIZATION INITIATOR AND A MIXTURE OF A POLYMERIZATION MODIFIER HAVING A SPECIFIC RELATIVELY LOW C5 VALUE AND A POLYMERIZATION MODIFIER HAVING A SPECIFIC RELATIVELY HIGH POLYMERIZATION MODIFIER HAVING A SPECIFIC RELATIVELY HIGH C5 VALUE ARE EMPLOYED IN THE SECOND REACTION ZONE. THE ETHYLENE HOMOPOLYMERS OBTAINED HAVE A WIDE MOLECULAR WEIGHT DISTRIBUTION AND ARE PRACTICALLY DEVOID OF VERY HIGH MOLECULAR WEIGHT CONSTITUENTS.

    Continuous production of ethylene homopolymers
    9.
    发明授权
    Continuous production of ethylene homopolymers 失效

    公开(公告)号：US3657212A

    公开(公告)日：1972-04-18

    申请号：US3657212D

    申请日：1970-02-11

    Applicant: BASF AG

    Inventor： STEIGERWALD KLAUS ,  BUECHNER OSKAR ,  URBAN FRIEDRICH ,  PFANNMUELLER HELMUT

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

    CPC classification number: C08F10/00 ,  C08F4/28

    Abstract: PRODUCTION OF ETHYLENE HOMOPOLYMERS HAVING A SPECIFIC DENSITY BY POLYMERIZATION OF ETHYLENE UDER THE ACTION OF ORGANIC PEROXIDES AND OXYGEN AS FREE-RADICAL-GENERATING POLYMERIZATION INITIATORS AND OF POLYMERIZATION MODIFIERS AT ELEVATED TEMPERATURE AND SUPERATOMSPHERIC PRESSURE IN A TUBULAR REACTOR HAVING TWO SUCCESSIVE REACTION ZONES, A MIXTURE OF ETHYLENE, POLYMERIZATION INITIATOR AND POLYMERIZATION MODIFIER BEING INTRODUCED CONTINOUSLY AT THE BEGINNING OF EACH REACTION ZONE. OXYGEN AS POLYMERIZATION INITATOR AND A POLYMERIZATION MODIFIER HAVING A SPECIFIC RELATIVELY LOW CS VALUE ARE USED IN THE FIRST REACTION ZONE, AND AN ORGANIC PEROXIDE AHVING A SPECIFIC HALF VALUE TEMPERATURE AS POLYMERIZATION INITIATOR AND A POLYMERIZATION MODIFIER HAVING A SPECIFIC RELATIVELY LOW CS VALUE ARE EMPLOYED IN THE SECOND REACTION ZONE. THE ETHYLENE HOMOPOLYMERS OBTAINED HAVE A WIDE MOLECULAR WEIGHT DISTRIBUTION AND ARE PRACTICALLY DEVOID OF VERY HIGH MOLECULAR WEIGHT CONSTITUENTS.

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