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公开(公告)号:US4508878A
公开(公告)日:1985-04-02
申请号:US530248
申请日:1983-09-08
IPC分类号: C08K5/14 , B29B9/00 , B29B9/10 , B29C49/04 , B29K23/00 , C08J3/12 , C08J3/24 , C08L23/00 , C08L23/04 , C08L23/06 , C08L101/00 , C08F236/00
CPC分类号: C08J3/24 , B29B9/00 , C08J3/12 , C08J2323/06
摘要: A process for producing a blow molding resin comprises pelletizing a high density polyethylene prepared by means of highly active Ziegler catalyst, characterized in that a small amount of a cross linking agent is added to the high density polyethylene and the pelletizing is conducted in an atmosphere containing a small amount of oxygen.
摘要翻译: 吹塑树脂的制造方法包括:将高活性齐格勒催化剂制备的高密度聚乙烯造粒,其特征在于,在高密度聚乙烯中加入少量交联剂,造粒在含有 少量的氧气。
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公开(公告)号:US4357448A
公开(公告)日:1982-11-02
申请号:US151637
申请日:1980-05-20
IPC分类号: C08F2/00 , C08F2/04 , C08F2/34 , C08F4/00 , C08F4/60 , C08F4/62 , C08F10/02 , C08F110/02 , C08F210/16 , C08F4/66
CPC分类号: C08F10/02 , C08F10/00 , C08F210/16 , C08F110/02 , Y02P20/52 , Y10S526/905
摘要: Ethylene or a mixture of ethylene and a small amount of another .alpha.-olefin or diene is polymerized in two successive steps under different hydrogen partial pressures by polymerizing 30 to 70 wt. % of the ethylene or ethylene mixture to be polymerized in the presence of hydrogen at a molar ratio of ethylene or ethylene mixture to hydrogen of 1:1-8 in the first step and polymerizing the residual ethylene or the ethylene mixture at a molar ratio of ethylene to hydrogen of 1:0-0.3 in the second step, in the presence of the specific catalyst system comprising an organoaluminum compound (C) and a specific solid catalytic component (B) obtained by reacting a titanium or vanadium halogen-containing compound with a reaction product (A) obtained by reacting a Grignard reagent with a hydropoly-siloxane having the formula ##EQU1## (R.sup.1 represents an alkyl, aryl, aralkyl, alkoxy, or aryloxy group as a monovalent organic group; a is 0,1 or 2; b is 1, 2 or 3; and a+b.ltoreq.3)or a silicon compound containing an organic group and hydroxyl group in the presence or absence of an aluminum-alkoxide, aluminum alkoxy-halide halide or a reaction product obtained by reacting the aluminum compound with water.
摘要翻译: 乙烯或乙烯与少量另外的α-烯烃或二烯的混合物在不同的氢分压下通过聚合30至70wt。 %的乙烯或乙烯混合物在氢气存在下以乙烯或乙烯混合物与氢气的摩尔比为1:1-8在第一步中聚合,并以残留的乙烯或乙烯混合物的摩尔比 在含有有机铝化合物(C)和特定固体催化剂组分(B)的特定催化剂体系存在下,第二步中乙烯与氢的摩尔比为1:0-0.3,使含钛或钒的含卤化合物与 通过使格氏试剂与具有式“IMAGE”的氢化聚硅氧烷反应得到的反应产物(A)(R1代表烷基,芳基,芳烷基,烷氧基或芳氧基作为一价有机基团; a为0,1或 2; b为1,2或3; a + b 3)或含有有机基团和羟基的硅化合物在存在或不存在铝 - 醇盐的情况下,烷氧基卤化铝卤化物或反应产物 通过使铝化合物与水分子反应获得 r。
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公开(公告)号:US4528151A
公开(公告)日:1985-07-09
申请号:US483877
申请日:1983-04-11
IPC分类号: C08F8/00 , B29B9/00 , B29B9/10 , B29C49/00 , B29K23/00 , C08F110/00 , C08F110/02 , C08J3/00 , C08J3/12 , B29C17/14 , B29F3/00
CPC分类号: C08J3/00 , B29B9/00 , C08F8/00 , C08J3/12 , C08J2323/06
摘要: A process for producing a blow molding resin comprises pelletizing a high density polyethylene prepared by means of a highly active Ziegler catalyst, at a temperature of at least 230.degree. C. in the presence of air or oxygen so as not to change the average molecular weight and the molecular weight distribution.
摘要翻译: 制造吹塑树脂的方法包括在空气或氧气存在下,在至少230℃的温度下,通过高活性齐格勒催化剂制备的高密度聚乙烯颗粒化,以便不改变平均分子量 和分子量分布。
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