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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。

    Polymerization of ethylene with 3-methyl-3-buten-1-ol
    4.
    发明授权
    Polymerization of ethylene with 3-methyl-3-buten-1-ol 失效
    乙烯与3-甲基-3-丁烯-1-OL的聚合

    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.

    8.
    发明专利
    未知

    公开(公告)号：ES2062265T3

    公开(公告)日：1994-12-16

    申请号：ES90121605

    申请日：1990-11-12

    Applicant: BASF AG

    Inventor： GROPPER HANS ,  FUNK GUIDO ,  KOLK ERICH ,  OEDER DIETER

    IPC: C08F4/02 ,  C08F4/18 ,  C08F4/22 ,  C08F4/24 ,  C08F10/00 ,  C08F110/02

    Abstract: The novel catalyst for the preparation of high-molecular-weight homopolymers or copolymers of ethene is obtainable by (1) treating a silicon dioxide-based support with (2) chromium trioxide or a chromium compound which can be converted into chromium dioxide under the conditions of step (3), and then (3) heating the resultant intermediate in an oxygen-containing stream of gas, where the support (1) is a specific silicic acid xerogel obtainable by extracting a maximum of 30% of water from a silicic acid hydrogel by means of alkanols, alkanones or mixtures thereof, and subsequently drying, comminuting and fractionating the product.

    9.
    发明专利
    未知

    公开(公告)号：FI924388A

    公开(公告)日：1993-04-05

    申请号：FI924388

    申请日：1992-09-30

    Applicant: BASF AG

    Inventor： FUNK GUIDO ,  HEMMERICH RAINER ,  GROPPER HANS ,  KOLK ERICH ,  FOLLMER GODOFREDO

    IPC: C08F4/02 ,  C08F4/06 ,  C08F4/22 ,  C08F4/24 ,  C08F4/69 ,  C08F10/00 ,  C08F10/02

    Abstract: In a new process for the preparation of a supported catalyst for the polymerisation of alpha -olefins, first a support gel (1) is prepared by introducing a sodium water glass or potassium water glass solution into a swirling stream of an aqueous mineral acid optionally containing aluminium ions longitudinally and tangentially to the stream, spraying the resultant silicic acid hydrosol in drop form into a gaseous medium, and allowing it to solidify to form a hydrogel, and freeing the resultant hydrogel, without prior ageing, from salts by washing and optionally from some of the water by extraction with alcohols and/or ketones, and then drying the hydrogel. This gives the support gel (1), which is ground and fractionated according to particle size. In a second process step, the support gel (1) is charged with chromium trioxide or with a chromium compound which can be converted into chromium trioxide, after which the resultant chromium-containing support gel (2) is heated at from 400 to 1100 DEG C for from 10 to 1000 minutes in an anhydrous gas stream containing oxygen in a concentration greater than 10% by volume. It is essential for the process according to the invention that the drying of the hydrogel to form the support gel (1) takes place in a high-speed drier within a maximum time of 300 seconds at an inlet temperature of from 200 to 600 DEG C. The supported catalyst prepared in this way gives homopolymers and copolymers of ethylene having excellent low-temperature toughness.

    PREPARATION OF HOMOPOLYMERS OF ETHENE AND COPOLYMERS OF ETHENE WITH HIGHER (ALPHA)-MONOOLEFINS USING A ZIEGLER CATALYST SYSTEM
    10.
    发明专利
    PREPARATION OF HOMOPOLYMERS OF ETHENE AND COPOLYMERS OF ETHENE WITH HIGHER (ALPHA)-MONOOLEFINS USING A ZIEGLER CATALYST SYSTEM 未知

    公开(公告)号：CA1251895A

    公开(公告)日：1989-03-28

    申请号：CA479993

    申请日：1985-04-24

    Applicant: BASF AG

    Inventor： BACHL ROBERT ,  WARZELHAN VOLKER ,  SCHWEIER GUENTHER ,  GROPPER HANS ,  BALL WOLFGANG

    IPC: C08F4/00 ,  C08F4/60 ,  C08F4/64 ,  C08F4/642 ,  C08F4/658 ,  C08F4/68 ,  C08F10/00 ,  C08F10/02

    Abstract: Homopolymers and copolymers of ethene are prepared using a Ziegler catalyst system comprising (1) a transition metal catalyst component, (2) an organoaluminum catalyst component and (3) an organohalogen catalyst component, by a method in which the transition metal catalyst component (1) employed is a solid-phase product (VI) obtained by (1.1) first combining (1.1.1) an inorganic oxidic substance ((I), as the carrier, with (1.1.2) a solution (II) consisting of (IIa) a certain oxahydrocarbon and (IIb) a mixture of (IIb1) a vanadium trichloride/alcohol complex, (IIb2) a titanium trihalide or titanium trihalide/alcohol complex and, if required, (IIb3) a zirconium tetrahalide to form a suspension (III), evaporating down this suspension to form a solid-phase intermediate (IV), and (1.2) then (1.2.1) combining the solid-phase intermediate (IV) obtained from (1.1) with (1.2.2) a solution of an organoaluminum compound (V) to form a suspension, the resulting suspended solid-phase product (VI) being the transition metal catalyst component (1).

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