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    • 1. 发明授权
    • Partially crosslinked polymer composition
    • 部分交联聚合物组合物
    • US5244976A
    • 1993-09-14
    • US847403
    • 1992-03-06
    • Sibylle BrosiusKlaus-Dieter RuemplerErhard SeilerSusanne HahnKarl HuberRainer A. Werner
    • Sibylle BrosiusKlaus-Dieter RuemplerErhard SeilerSusanne HahnKarl HuberRainer A. Werner
    • C08F255/02
    • C08F255/02
    • A partially crosslinked polymer composition having a melt flow index of from 0.1 to 50 g/10 min at 230.degree. C. under a weight of 2.16 kg and comprisinga) a polymer comprising from 25 to 95% by weight of polypropylene and 5 to 75% by weight of a propylene copolymer with copolymerized C.sub.2 -C.sub.10 -alk-1-enes, the comonomer content being from 1 to 45% by weight, based on the total polymer,b) an organosilane compound of the formula (I)A.sub.4-n SiR.sub.n (i) where A are identical or different acrylates or methacrylates or vinyl groups, R are identical or different C.sub.1 -C.sub.8 -alkoxy or C.sub.1 -C.sub.8 -acetoxy groups, and n is 1, 2 or 3, obtainable by reacting the polymer a) with the organosilane compound b) in the presence of a free-radical initiator and in the presence of a condensation catalyst at from 180.degree. to 280.degree. C., and at from 1 to 100 bar and at a mean residence time of the reaction mixture of from 0.2 to 10 minutes,has, in particular, high notched impact strength, increased puncture resistance and improved weld line strength.
    • 一种部分交联的聚合物组合物,其熔体流动指数为0.1至50g / 10min,在230℃,重量为2.16kg,并包含a)包含25至95重量%的聚丙烯和5至75的聚合物 重量%的具有共聚的C 2 -C 10 - 烷-1-烯的丙烯共聚物,基于总聚合物的共聚单体含量为1至45重量%,b)式(I)的有机硅烷化合物, nSiRn(i)其中A是相同或不同的丙烯酸酯或甲基丙烯酸酯或乙烯基,R是相同或不同的C 1 -C 8 - 烷氧基或C 1 -C 8 - 乙酰氧基,n是1,2或3,可通过使聚合物a )与有机硅烷化合物b)在自由基引发剂的存在下,在缩合催化剂存在下,在180-280℃,和1-100巴,反应的平均停留时间 0.2〜10分钟的混合物,特别是具有高缺口冲击强度,抗穿刺性提高 焊线强度。
    • 3. 发明授权
    • Preparation of propylene/ethylene polymers of the toughened
polypropylene type
    • 制备增韧聚丙烯类型的丙烯/乙烯聚合物
    • US4977210A
    • 1990-12-11
    • US389818
    • 1989-08-04
    • Juergen KerthRainer A. WernerRalf ZolkKlaus-Dieter RuemplerGuenther SchweierRudolf Mueller-MallWolfgang Gruber
    • Juergen KerthRainer A. WernerRalf ZolkKlaus-Dieter RuemplerGuenther SchweierRudolf Mueller-MallWolfgang Gruber
    • C08F2/34C08F4/02C08F4/58C08F4/60C08F4/64C08F4/642C08F297/08
    • C08F297/083
    • Propylene/ethylene block copolymers are prepared by a continuous process in which, in each case in an agitated fixed bed of finely divided polymer from the gas phase, first (I) in a first polymerization zone, propylene is homopolymerized by feeding in a Ziegler-Natta catalyst system consisting of (1) a titanium component which contains titanium, magnesium, chlorine and a phthalic acid derivative, (2) an aluminumalkyl component and (3) a silane component, and (II) in a second polymerization zone, a mixture of propylene and ethylene is polymerized with the propylene homopolymer present in the reaction mixture obtained in the first polymerization zone by feeding in the said reaction mixture. In the process, (A) a titanium component (1) is used which is obtained by a method in which (1.1) first, (1.1.1) in a liquid hydrocarbon, (1.1.2) a finely divided magnesium halide, (1.1.3) an alkanol, (1.1.4) a certain phthalic acid derivative and (1.1.5) titanium tetrachloride are reacted with one another under certain conditions, (1.2) the solid intermediate obtained from (1.1) is extracted with titanium tetrachloride or a liquid alkylbenzene until the remaining solid substance has become substantially richer in magnesium, and (1.3) finally, the solid substance remaining in (1.2) is washed with an alkane in a certain manner, (B) a specific silane is used as (3), and (C) specifically selected polymerization parameters are employed, with relationships between the first and second polymerization zones.
    • 丙烯/乙烯嵌段共聚物通过连续方法制备,其中在每种情况下,在来自气相的搅动的细分散聚合物的固定床中,在第一聚合区中的第一(I),丙烯通过进料齐格勒 - 纳塔催化剂体系(1)钛,镁,氯和邻苯二甲酸衍生物的钛成分,(2)铝烷基成分和(3)硅烷成分,(II)在第二聚合区中的混合物 的丙烯和乙烯通过在所述反应混合物中进料而与在第一聚合区中获得的反应混合物中存在的丙烯均聚物聚合。 在该方法中,(A)使用通过以下方法获得的钛组分(1):(1.1)第一,(1.1.1)在液体烃中,(1.1.2)细碎的卤化镁, 1.1.3)链烷醇(1.1.4)某些邻苯二甲酸衍生物和(1.1.5)四氯化钛在一定条件下彼此反应,(1.2)从(1.1)得到的固体中间体用四氯化钛 或液态烷基苯,直到残留的固体物质变得更加富镁,(1.3)最后,以(某种)方式用烷烃洗涤残留在(1.2)中的固体,(B)使用特定的硅烷作为( 3),和(C)具体选择的聚合参数,与第一和第二聚合区之间的关系。