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    • 1. 发明授权
    • Process for the production of high-flow propylene/ethylene copolymers
    • 生产高流动性丙烯/乙烯共聚物的方法
    • US5639822A
    • 1997-06-17
    • US355307
    • 1994-12-12
    • Klaus-Dieter HungenbergHarald SchwagerKlaus Dieter RuemplerPatrik Mueller
    • Klaus-Dieter HungenbergHarald SchwagerKlaus Dieter RuemplerPatrik Mueller
    • C08F2/34C08F2/38C08F4/642C08F4/646C08F210/06C08F297/08
    • C08F297/083C08F210/06
    • High-flow propylene/ethylene copolymers which have a melt flow index of from 2 to 200 g/min under a load of 2.16 kg at 230.degree. C. and which may be produced from the gas phase by polymerization in two stages in an agitated fixed bed in the presence of hydrogen acting as chain stoppage regulator and using a Ziegler-Natta catalyst system comprising a titaniferous solid component which contains a magnesium compound on finely divided silicon oxide or on finely divided aluminum oxide or on a finely divided aluminum silicate having the empirical formula SiO.sub.2.aAl.sub.2 O.sub.3, where a stands for a value between 0.001 and 2, and an aluminum component, by means of a procedure comprisinga) a first polymerization stage in which propylene is polymerized under a pressure of from 20 to 40 bar and at a temperature of from 60.degree. to 90.degree. C., the ratio of the partial pressure of the hydrogen to that of the propylene being adjusted to from 1:100 to 10:100, followed byb) a second polymerization stage, which consists in the polymerization, at a temperature of from 40.degree. to 100.degree. C., of a mixture of propylene and ethylene and the addition thereof, in the form of polymerized units, to the polypropylene produced in the first polymerization stage, the pressure in this second polymerization stage being from 10 to 30 bar and at least 7 bar lower than that used in the first polymerization stage, while the ratio of the partial pressure of the hydrogen to that of the propylene is adjusted to from 2:100 to 12:100 and the ratio of the weight of monomer converted in the first stage to that of monomer converted in the second stage is kept within the range of 1:1 to 20:1.
    • 高流动性丙烯/乙烯共聚物,其在230℃负载2.16kg时的熔体流动指数为2〜200g / min,可以通过在搅拌固定 在作为链停止调节剂的氢气存在下,使用齐格勒 - 纳塔催化剂体系,其包含含钛固体组分,其在细碎的氧化硅上或在细碎的氧化铝上或在具有经验的细碎的硅酸铝上含有镁化合物 其中a表示0.001和2之间的值,以及铝组分,通过包括以下步骤的方法:a)第一聚合阶段,其中丙烯在20至40巴的压力下聚合, 温度为60℃至90℃,氢气与丙烯的分压比为1:100至10:100,接着是b)第二聚合阶段,其中con 在40至100℃的温度下聚合丙烯和乙烯的混合物,并将其以聚合单元的形式加入到在第一聚合阶段中生产的聚丙烯中, 该第二聚合阶段为10至30巴,比第一聚合阶段中使用的低至少7巴,而氢与丙烯分压的比例调节至2:100至12: 100,第一阶段中转化的单体重量与在第二级转化的单体的重量比保持在1:1至20:1的范围内。
    • 7. 发明授权
    • Propylene copolymers grafted using free radical initiators
    • 使用自由基引发剂接枝的丙烯共聚物
    • US5451639A
    • 1995-09-19
    • US208845
    • 1994-03-11
    • Bernd L. MarczinkeJuergen KerthPatrik MuellerHorst BaumgartlPeter Ittemann
    • Bernd L. MarczinkeJuergen KerthPatrik MuellerHorst BaumgartlPeter Ittemann
    • C08F8/46C08F255/02C09J151/06D01F6/30
    • D01F6/30C08F255/02C09J151/06
    • Propylene copolymers grafted with .alpha.,.beta.-ethylenically unsaturated carboxylic acids or carboxylic acid derivatives and consisting ofa.sub.1) a random propylene copolymer (A.sub.1) containing from 0.1 to 15% by weight of polymerized C.sub.2 -C.sub.10 -alk-1-enes or ofa.sub.2) a propylene copolymer (A.sub.2) comprising a random propylene copolymer (I) containing from 0.1 to 15% by weight of polymerized C.sub.2 -C.sub.10 -alk-1-enes and a random propylene copolymer (II) containing from 15 to 80% by weight of polymerized C.sub.2 -C.sub.10 -alk-1-enes or ofa.sub.3) a propylene copolymer (A.sub.3) comprising a propylene homopolymer (III) and a random propylene copolymer (IV) containing from 15 to 80% by weight of polymerized C.sub.2 -C.sub.10 -alk-1-enes,are obtainable by reacting the monomer to be grafted with the propylene copolymer (A.sub.1), (A.sub.2) or (A.sub.3) at from 1 to 300 bar, from 0.01 to 1.0% by weight of the monomer to be grafted, where both stated concentrations are based on the propylene copolymer, being added to the molten propylene copolymer in the presence of from 0.005 to 0.5% by weight of a free radical initiator and the grafting reaction being carried out at from 200.degree. to 350.degree. C.
    • 由α,β-烯键式不饱和羧酸或羧酸衍生物接枝的丙烯共聚物,由a1)无规丙烯共聚物(A1)组成,该无规丙烯共聚物(A1)含有0.1至15重量%的聚合的C2-C10-烷-1-烯或a2 )包含含有0.1至15重量%的聚合的C 2 -C 10 - 烷-1-烯的无规丙烯共聚物(I)和含有15至80重量%的无规丙烯共聚物(II)的丙烯共聚物(A2) 的聚合的C 2 -C 10 - 烷-1-烯或a 3)包含丙烯均聚物(III)和无规丙烯共聚物(IV)的丙烯共聚物(A3),其含有15至80重量%的聚合的C 2 -C 10 - 可以通过将待接枝的单体与丙烯共聚物(A1),(A2)或(A3)以1至300巴反应,0.01至1.0重量%的待接枝的单体 ,其中两个所述的浓度都是基于丙烯共聚物,加入到熔融丙烯共聚物中 为自由基引发剂的0.005〜0.5重量%,接枝反应为200〜350℃。
    • 8. 发明授权
    • Preparation of homo- and copolymers of propene by means of a
Ziegler-Natta catalyst system
    • 通过齐格勒 - 纳塔催化剂体系制备丙烯的均聚物和共聚物
    • US5288824A
    • 1994-02-22
    • US934848
    • 1992-08-25
    • Juergen KerthRainer HemmerichPeter KoellePatrik Mueller
    • Juergen KerthRainer HemmerichPeter KoellePatrik Mueller
    • C08F4/658C08F4/02C08F4/60C08F4/647C08F4/652C08F10/00C08F10/06C08F4/64
    • C08F10/06
    • Polymers of propene are prepared using a Ziegler-Natta catalyst system comprising (1) titanium component which is based on a finely divided, shape-imparting silica gel and contains titan- ium, magnesium, chlorine and a benzenecarboxylic acid derivative, (2) an aluminum component and (3) a silane component. The process employs a titanium component (1) which is obtained by a method in which (1.1) first (I) a carrier is prepared from (Ia) a silica gel which has a relatively high moisture content, (Ib) an organomagnesium compound and (Ic) a gaseous chlorinating agent in a manner such that (1.1.1) first (Ia) is reacted with (Ib), (1.1.2) then (Ic) is passed into the mixture obtained from (1.1.1), (1.2) then a solid-phase intermediate is prepared from (I), (II) an alkanol, (III) titanium tetrachloride and (IV) a phthalic acid derivative in a manner such that (1.2.1) first (I) is reacted with (II), (1.2.2) then (III) is introduced into the mixture resulting from (1.2.1), with the proviso that (IV) is also introduced in (1.2.1) or (1.2.2), (1.3) then the solid-phase intermediate resulting from (1.2) is extracted with titanium tetrachloride or with a titanium tetrachloride/-hydrocarbon mixture and (1.4) finally the solid-phase product resulting from (1.3) is washed with a liquid hydrocarbon.
    • 使用齐格勒 - 纳塔催化剂体系制备丙烯聚合物,该催化剂体系包括(1)基于精细分散的形状赋予硅胶并含有钛,镁,氯和苯甲酸衍生物的钛组分,(2) 铝成分和(3)硅烷成分。 该方法采用通过以下方法得到的钛组分(1):其中(1.1)第一(I)载体由(Ia)由具有相对高的水分含量的硅胶制备,(Ib)有机镁化合物和 (Ic)气态氯化剂,使得(1.1.1)第一(Ia)与(Ib),(1.1.2)反应,然后(Ic)进入从(1.1.1)获得的混合物中, (1.2),然后以(I),(II)烷醇,(III)四氯化钛和(IV)邻苯二甲酸衍生物的方式制备固相中间体,使得(1.2.1)第一(I)为 与(II)反应,(1.2.2)然后将(III)引入由(1.2.1)得到的混合物中,条件是(IV)也引入(1.2.1)或(1.2.2) ,(1.3),然后用四氯化钛或四氯化钛/ - 烃混合物萃取由(1.2)得到的固相中间体,(1.4)最后将由(1.3)得到的固相产物用液体烃 。